diff --git a/packages/backend/src/core/MfmService.ts b/packages/backend/src/core/MfmService.ts
index b275d1b142..91690aec1b 100644
--- a/packages/backend/src/core/MfmService.ts
+++ b/packages/backend/src/core/MfmService.ts
@@ -388,4 +388,212 @@ export class MfmService {
 
 		return `<p>${doc.body.innerHTML}</p>`;
 	}
+
+	@bindThis
+	public async toMastoHtml(nodes: mfm.MfmNode[] | null, mentionedRemoteUsers: IMentionedRemoteUsers = [], inline = false, quoteUri: string | null = null) {
+		if (nodes == null) {
+			return null;
+		}
+
+		const { window } = new Window();
+
+		const doc = window.document;
+
+		async function appendChildren(children: mfm.MfmNode[], targetElement: any): Promise<void> {
+			if (children) {
+				for (const child of await Promise.all(children.map(async (x) => await (handlers as any)[x.type](x)))) targetElement.appendChild(child);
+			}
+		}
+
+		const handlers: {
+            [K in mfm.MfmNode['type']]: (node: mfm.NodeType<K>) => any;
+        } = {
+			async bold(node) {
+				const el = doc.createElement('span');
+				el.textContent = '**';
+				await appendChildren(node.children, el);
+				el.textContent += '**';
+				return el;
+			},
+
+			async small(node) {
+				const el = doc.createElement('small');
+				await appendChildren(node.children, el);
+				return el;
+			},
+
+			async strike(node) {
+				const el = doc.createElement('span');
+				el.textContent = '~~';
+				await appendChildren(node.children, el);
+				el.textContent += '~~';
+				return el;
+			},
+
+			async italic(node) {
+				const el = doc.createElement('span');
+				el.textContent = '*';
+				await appendChildren(node.children, el);
+				el.textContent += '*';
+				return el;
+			},
+
+			async fn(node) {
+				const el = doc.createElement('span');
+				el.textContent = '*';
+				await appendChildren(node.children, el);
+				el.textContent += '*';
+				return el;
+			},
+
+			blockCode(node) {
+				const pre = doc.createElement('pre');
+				const inner = doc.createElement('code');
+
+				const nodes = node.props.code
+					.split(/\r\n|\r|\n/)
+					.map((x) => doc.createTextNode(x));
+
+				for (const x of intersperse<FIXME | 'br'>('br', nodes)) {
+					inner.appendChild(x === 'br' ? doc.createElement('br') : x);
+				}
+
+				pre.appendChild(inner);
+				return pre;
+			},
+
+			async center(node) {
+				const el = doc.createElement('div');
+				await appendChildren(node.children, el);
+				return el;
+			},
+
+			emojiCode(node) {
+				return doc.createTextNode(`\u200B:${node.props.name}:\u200B`);
+			},
+
+			unicodeEmoji(node) {
+				return doc.createTextNode(node.props.emoji);
+			},
+
+			hashtag: (node) => {
+				const a = doc.createElement('a');
+				a.setAttribute('href', `${this.config.url}/tags/${node.props.hashtag}`);
+				a.textContent = `#${node.props.hashtag}`;
+				a.setAttribute('rel', 'tag');
+				a.setAttribute('class', 'hashtag');
+				return a;
+			},
+
+			inlineCode(node) {
+				const el = doc.createElement('code');
+				el.textContent = node.props.code;
+				return el;
+			},
+
+			mathInline(node) {
+				const el = doc.createElement('code');
+				el.textContent = node.props.formula;
+				return el;
+			},
+
+			mathBlock(node) {
+				const el = doc.createElement('code');
+				el.textContent = node.props.formula;
+				return el;
+			},
+
+			async link(node) {
+				const a = doc.createElement('a');
+				a.setAttribute('rel', 'nofollow noopener noreferrer');
+				a.setAttribute('target', '_blank');
+				a.setAttribute('href', node.props.url);
+				await appendChildren(node.children, a);
+				return a;
+			},
+
+			async mention(node) {
+				const { username, host, acct } = node.props;
+				const resolved = mentionedRemoteUsers.find(remoteUser => remoteUser.username === username && remoteUser.host === host);
+
+				const el = doc.createElement('span');
+				if (!resolved) {
+					el.textContent = acct;
+				} else {
+					el.setAttribute('class', 'h-card');
+					el.setAttribute('translate', 'no');
+					const a = doc.createElement('a');
+					a.setAttribute('href', resolved.url ? resolved.url : resolved.uri);
+					a.className = 'u-url mention';
+					const span = doc.createElement('span');
+					span.textContent = resolved.username || username;
+					a.textContent = '@';
+					a.appendChild(span);
+					el.appendChild(a);
+				}
+
+				return el;
+			},
+
+			async quote(node) {
+				const el = doc.createElement('blockquote');
+				await appendChildren(node.children, el);
+				return el;
+			},
+
+			text(node) {
+				const el = doc.createElement('span');
+				const nodes = node.props.text
+					.split(/\r\n|\r|\n/)
+					.map((x) => doc.createTextNode(x));
+
+				for (const x of intersperse<FIXME | 'br'>('br', nodes)) {
+					el.appendChild(x === 'br' ? doc.createElement('br') : x);
+				}
+
+				return el;
+			},
+
+			url(node) {
+				const a = doc.createElement('a');
+				a.setAttribute('rel', 'nofollow noopener noreferrer');
+				a.setAttribute('target', '_blank');
+				a.setAttribute('href', node.props.url);
+				a.textContent = node.props.url.replace(/^https?:\/\//, '');
+				return a;
+			},
+
+			search: (node) => {
+				const a = doc.createElement('a');
+				a.setAttribute('href', `https"google.com/${node.props.query}`);
+				a.textContent = node.props.content;
+				return a;
+			},
+
+			async plain(node) {
+				const el = doc.createElement('span');
+				await appendChildren(node.children, el);
+				return el;
+			},
+        };
+		
+		await appendChildren(nodes, doc.body);
+
+		if (quoteUri !== null) {
+			const a = doc.createElement('a');
+			a.setAttribute('href', quoteUri);
+			a.textContent = quoteUri.replace(/^https?:\/\//, '');
+
+			const quote = doc.createElement('span');
+			quote.setAttribute('class', 'quote-inline');
+			quote.appendChild(doc.createElement('br'));
+			quote.appendChild(doc.createElement('br'));
+			quote.innerHTML += 'RE: ';
+			quote.appendChild(a);
+
+			doc.body.appendChild(quote);
+		}
+
+		return inline ? doc.body.innerHTML : `<p>${doc.body.innerHTML}</p>`;
+	}
 }
diff --git a/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts b/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
index a8c45b98f7..9a2890f507 100644
--- a/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
+++ b/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
@@ -8,7 +8,7 @@ import { DI } from '@/di-symbols.js';
 import { bindThis } from '@/decorators.js';
 import type { Config } from '@/config.js';
 import { MetaService } from '@/core/MetaService.js';
-import { convertId, IdConvertType as IdType, convertAccount, convertAnnouncement, convertFilter, convertAttachment, convertFeaturedTag, convertList } from './converters.js';
+import { convertAccount, convertAnnouncement, convertFilter, convertAttachment, convertFeaturedTag, convertList } from './converters.js';
 import { getInstance } from './endpoints/meta.js';
 import { ApiAuthMastodon, ApiAccountMastodon, ApiFilterMastodon, ApiNotifyMastodon, ApiSearchMastodon, ApiTimelineMastodon, ApiStatusMastodon } from './endpoints.js';
 import type { FastifyInstance, FastifyPluginOptions } from 'fastify';
@@ -128,7 +128,7 @@ export class MastodonApiServerService {
 			const client = getClient(BASE_URL, accessTokens);
 			try {
 				const data = await client.dismissInstanceAnnouncement(
-					convertId(_request.body['id'], IdType.SharkeyId),
+					_request.body['id'],
 				);
 				reply.send(data.data);
 			} catch (e: any) {
@@ -236,7 +236,7 @@ export class MastodonApiServerService {
 			const client = getClient(BASE_URL, accessTokens); // we are using this here, because in private mode some info isnt
 			// displayed without being logged in
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.verifyCredentials());
 			} catch (e: any) {
 				/* console.error(e); */
@@ -286,7 +286,7 @@ export class MastodonApiServerService {
 					ids = [ids];
 				}
 				users = ids;
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.getRelationships(users));
 			} catch (e: any) {
 				/* console.error(e); */
@@ -302,7 +302,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const sharkId = convertId(_request.params.id, IdType.SharkeyId);
+				const sharkId = _request.params.id;
 				const data = await client.getAccount(sharkId);
 				const profile = await this.userProfilesRepository.findOneBy({ userId: sharkId });
 				data.data.fields = profile?.fields.map(f => ({ ...f, verified_at: null })) || [];
@@ -319,7 +319,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.getStatuses());
 			} catch (e: any) {
 				/* console.error(e);
@@ -347,7 +347,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.getFollowers());
 			} catch (e: any) {
 				/* console.error(e);
@@ -361,7 +361,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.getFollowing());
 			} catch (e: any) {
 				/* console.error(e);
@@ -375,7 +375,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.getAccountLists(convertId(_request.params.id, IdType.SharkeyId));
+				const data = await client.getAccountLists(_request.params.id);
 				reply.send(data.data.map((list) => convertList(list)));
 			} catch (e: any) {
 				/* console.error(e);
@@ -389,7 +389,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.addFollow());
 			} catch (e: any) {
 				/* console.error(e);
@@ -403,7 +403,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.rmFollow());
 			} catch (e: any) {
 				/* console.error(e);
@@ -417,7 +417,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.addBlock());
 			} catch (e: any) {
 				/* console.error(e);
@@ -431,7 +431,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.rmBlock());
 			} catch (e: any) {
 				/* console.error(e);
@@ -445,7 +445,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.addMute());
 			} catch (e: any) {
 				/* console.error(e);
@@ -459,7 +459,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.rmMute());
 			} catch (e: any) {
 				/* console.error(e);
@@ -487,7 +487,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.getBookmarks());
 			} catch (e: any) {
 				/* console.error(e);
@@ -501,7 +501,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.getFavourites());
 			} catch (e: any) {
 				/* console.error(e);
@@ -515,7 +515,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.getMutes());
 			} catch (e: any) {
 				/* console.error(e);
@@ -529,7 +529,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.getBlocks());
 			} catch (e: any) {
 				/* console.error(e);
@@ -557,7 +557,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.acceptFollow());
 			} catch (e: any) {
 				/* console.error(e);
@@ -571,7 +571,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const account = new ApiAccountMastodon(_request, client, BASE_URL);
+				const account = new ApiAccountMastodon(_request, client, BASE_URL, this.config, this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 				reply.send(await account.rejectFollow());
 			} catch (e: any) {
 				/* console.error(e);
@@ -813,7 +813,7 @@ export class MastodonApiServerService {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.updateMedia(convertId(_request.params.id, IdType.SharkeyId), _request.body!);
+				const data = await client.updateMedia(_request.params.id, _request.body!);
 				reply.send(convertAttachment(data.data));
 			} catch (e: any) {
 				/* console.error(e); */
diff --git a/packages/backend/src/server/api/mastodon/converters.ts b/packages/backend/src/server/api/mastodon/converters.ts
index cbd2550f92..a839145609 100644
--- a/packages/backend/src/server/api/mastodon/converters.ts
+++ b/packages/backend/src/server/api/mastodon/converters.ts
@@ -3,14 +3,13 @@ import { MfmService } from '@/core/MfmService.js';
 import { DI } from '@/di-symbols.js';
 import { Inject } from '@nestjs/common';
 import { Entity } from 'megalodon';
-import { parse } from 'mfm-js';
+import mfm from 'mfm-js';
 import { GetterService } from '../GetterService.js';
 import type { IMentionedRemoteUsers } from '@/models/Note.js';
 import type { MiUser } from '@/models/User.js';
 import type { NoteEditRepository, NotesRepository, UsersRepository } from '@/models/_.js';
 import { UserEntityService } from '@/core/entities/UserEntityService.js';
-
-const CHAR_COLLECTION = '0123456789abcdefghijklmnopqrstuvwxyz';
+import { awaitAll } from '@/misc/prelude/await-all.js';
 
 export enum IdConvertType {
     MastodonId,
@@ -18,13 +17,13 @@ export enum IdConvertType {
 }
 
 export const escapeMFM = (text: string): string => text
-    .replace(/&/g, "&amp;")
-    .replace(/</g, "&lt;")
-    .replace(/>/g, "&gt;")
-    .replace(/"/g, "&quot;")
-    .replace(/'/g, "&#39;")
-    .replace(/`/g, "&#x60;")
-    .replace(/\r?\n/g, "<br>");
+	.replace(/&/g, "&amp;")
+	.replace(/</g, "&lt;")
+	.replace(/>/g, "&gt;")
+	.replace(/"/g, "&quot;")
+	.replace(/'/g, "&#39;")
+	.replace(/`/g, "&#x60;")
+	.replace(/\r?\n/g, "<br>");
 
 export class MastoConverters {
 	private MfmService: MfmService;
@@ -49,7 +48,7 @@ export class MastoConverters {
 		this.GetterService = new GetterService(this.usersRepository, this.notesRepository, this.noteEditRepository, this.userEntityService);
 	}
 
-	private encode(u: MiUser, m: IMentionedRemoteUsers): MastodonEntity.Mention {
+	private encode(u: MiUser, m: IMentionedRemoteUsers): Entity.Mention {
 		let acct = u.username;
 		let acctUrl = `https://${u.host || this.config.host}/@${u.username}`;
 		let url: string | null = null;
@@ -73,89 +72,97 @@ export class MastoConverters {
 		});
 	}
 
+	public async convertAccount(account: Entity.Account) {
+		return awaitAll({
+			id: account.id,
+			username: account.username,
+			acct: account.acct,
+			fqn: account.fqn,
+			display_name: account.display_name || account.username,
+			locked: account.locked,
+			created_at: account.created_at,
+			followers_count: account.followers_count,
+			following_count: account.following_count,
+			statuses_count: account.statuses_count,
+			note: account.note,
+			url: account.url,
+			avatar: account.avatar,
+			avatar_static: account.avatar,
+			header: account.header,
+			header_static: account.header,
+			emojis: account.emojis,
+			moved: null, //FIXME
+			fields: [],
+			bot: false,
+			discoverable: true,
+		});
+	}
+
 	public async convertStatus(status: Entity.Status) {
-		status.account = convertAccount(status.account);
+		const convertedAccount = this.convertAccount(status.account);
 		const note = await this.GetterService.getNote(status.id);
-		status.id = convertId(status.id, IdConvertType.MastodonId);
-		if (status.in_reply_to_account_id) status.in_reply_to_account_id = convertId(
-			status.in_reply_to_account_id,
-			IdConvertType.MastodonId,
-		);
-		if (status.in_reply_to_id) status.in_reply_to_id = convertId(status.in_reply_to_id, IdConvertType.MastodonId);
-		status.media_attachments = status.media_attachments.map((attachment) =>
-			convertAttachment(attachment),
-		);
-		// This will eventually be improved with a rewrite of this file
+
 		const mentions = Promise.all(note.mentions.map(p =>
 			this.getUser(p)
 				.then(u => this.encode(u, JSON.parse(note.mentionedRemoteUsers)))
 				.catch(() => null)))
-			.then(p => p.filter(m => m)) as Promise<MastodonEntity.Mention[]>;
-		status.mentions = await mentions;
-		status.mentions = status.mentions.map((mention) => ({
-			...mention,
-			id: convertId(mention.id, IdConvertType.MastodonId),
-		}));
-		const convertedMFM = this.MfmService.toHtml(parse(status.content), JSON.parse(note.mentionedRemoteUsers));
-		status.content = status.content ? convertedMFM?.replace(/&amp;/g, "&").replaceAll(`<span>&</span><a href="${this.config.url}/tags/39;" rel="tag">#39;</a>`, "<span>\'</span>") as string : status.content;
-		if (status.poll) status.poll = convertPoll(status.poll);
-		if (status.reblog) status.reblog = convertStatus(status.reblog);
-	
-		return status;
-	}
-}
+			.then(p => p.filter(m => m)) as Promise<Entity.Mention[]>;
 
-export function convertId(in_id: string, id_convert_type: IdConvertType): string {
-	switch (id_convert_type) {
-		case IdConvertType.MastodonId: {
-			let out = BigInt(0);
-			const lowerCaseId = in_id.toLowerCase();
-			for (let i = 0; i < lowerCaseId.length; i++) {
-				const charValue = numFromChar(lowerCaseId.charAt(i));
-				out += BigInt(charValue) * BigInt(36) ** BigInt(i);
-			}
-			return out.toString();
-		}
-    
-		case IdConvertType.SharkeyId: {
-			let input = BigInt(in_id);
-			let outStr = '';
-			while (input > BigInt(0)) {
-				const remainder = Number(input % BigInt(36));
-				outStr = charFromNum(remainder) + outStr;
-				input /= BigInt(36);
-			}
-			const ReversedoutStr = outStr.split('').reduce((acc, char) => char + acc, '');
-			return ReversedoutStr;
-		}
-    
-		default:
-			throw new Error('Invalid ID conversion type');
-	}
-}
+		const content = note.text !== null
+			? this.MfmService.toMastoHtml(mfm.parse(note.text!), JSON.parse(note.mentionedRemoteUsers), false, null)
+				.then(p => p ?? escapeMFM(note.text!))
+			: '';
 
-function numFromChar(character: string): number {
-	for (let i = 0; i < CHAR_COLLECTION.length; i++) {
-		if (CHAR_COLLECTION.charAt(i) === character) {
-			return i;
-		}
-	}
+		const tags = note.tags.map(tag => {
+			return {
+				name: tag,
+				url: `${this.config.url}/tags/${tag}`,
+			} as Entity.Tag;
+		});
 
-	throw new Error('Invalid character in parsed base36 id');
-}
-
-function charFromNum(number: number): string {
-	if (number >= 0 && number < CHAR_COLLECTION.length) {
-		return CHAR_COLLECTION.charAt(number);
-	} else {
-		throw new Error('Invalid number for base-36 encoding');
+		// noinspection ES6MissingAwait
+		return await awaitAll({
+			id: note.id,
+			uri: note.uri ?? `https://${this.config.host}/notes/${note.id}`,
+			url: note.url ?? note.uri ?? `https://${this.config.host}/notes/${note.id}`,
+			account: convertedAccount,
+			in_reply_to_id: note.replyId,
+			in_reply_to_account_id: note.replyUserId,
+			reblog: status.reblog,
+			content: content,
+			content_type: 'text/x.misskeymarkdown',
+			text: note.text,
+			created_at: status.created_at,
+			emojis: status.emojis,
+			replies_count: note.repliesCount,
+			reblogs_count: note.renoteCount,
+			favourites_count: status.favourites_count,
+			reblogged: false,
+			favourited: status.favourited,
+			muted: status.muted,
+			sensitive: status.sensitive,
+			spoiler_text: note.cw ? note.cw : '',
+			visibility: status.visibility,
+			media_attachments: status.media_attachments,
+			mentions: mentions,
+			tags: tags,
+			card: null, //FIXME
+			poll: status.poll ?? null,
+			application: null, //FIXME
+			language: null, //FIXME
+			pinned: null,
+			reactions: status.emoji_reactions,
+			emoji_reactions: status.emoji_reactions,
+			bookmarked: false,
+			quote: false,
+			edited_at: note.updatedAt?.toISOString(),
+		});
 	}
 }
 
 function simpleConvert(data: any) {
 	// copy the object to bypass weird pass by reference bugs
 	const result = Object.assign({}, data);
-	result.id = convertId(data.id, IdConvertType.MastodonId);
 	return result;
 }
 
@@ -180,7 +187,6 @@ export function convertFeaturedTag(tag: Entity.FeaturedTag) {
 
 export function convertNotification(notification: Entity.Notification) {
 	notification.account = convertAccount(notification.account);
-	notification.id = convertId(notification.id, IdConvertType.MastodonId);
 	if (notification.status) notification.status = convertStatus(notification.status);
 	return notification;
 }
@@ -200,19 +206,9 @@ export function convertRelationship(relationship: Entity.Relationship) {
 
 export function convertStatus(status: Entity.Status) {
 	status.account = convertAccount(status.account);
-	status.id = convertId(status.id, IdConvertType.MastodonId);
-	if (status.in_reply_to_account_id) status.in_reply_to_account_id = convertId(
-		status.in_reply_to_account_id,
-		IdConvertType.MastodonId,
-	);
-	if (status.in_reply_to_id) status.in_reply_to_id = convertId(status.in_reply_to_id, IdConvertType.MastodonId);
 	status.media_attachments = status.media_attachments.map((attachment) =>
 		convertAttachment(attachment),
 	);
-	status.mentions = status.mentions.map((mention) => ({
-		...mention,
-		id: convertId(mention.id, IdConvertType.MastodonId),
-	}));
 	if (status.poll) status.poll = convertPoll(status.poll);
 	if (status.reblog) status.reblog = convertStatus(status.reblog);
 
@@ -224,7 +220,6 @@ export function convertStatusSource(status: Entity.StatusSource) {
 }
 
 export function convertConversation(conversation: Entity.Conversation) {
-	conversation.id = convertId(conversation.id, IdConvertType.MastodonId);
 	conversation.accounts = conversation.accounts.map(convertAccount);
 	if (conversation.last_status) {
 		conversation.last_status = convertStatus(conversation.last_status);
diff --git a/packages/backend/src/server/api/mastodon/endpoints/account.ts b/packages/backend/src/server/api/mastodon/endpoints/account.ts
index 24ebe0c48b..802f1f5a67 100644
--- a/packages/backend/src/server/api/mastodon/endpoints/account.ts
+++ b/packages/backend/src/server/api/mastodon/endpoints/account.ts
@@ -1,7 +1,10 @@
-import { convertId, IdConvertType as IdType, convertAccount, convertRelationship, convertStatus } from '../converters.js';
-import { argsToBools, convertTimelinesArgsId, limitToInt } from './timeline.js';
+import { MastoConverters, convertRelationship } from '../converters.js';
+import { argsToBools, limitToInt } from './timeline.js';
 import type { MegalodonInterface } from 'megalodon';
 import type { FastifyRequest } from 'fastify';
+import { NoteEditRepository, NotesRepository, UsersRepository } from '@/models/_.js';
+import { UserEntityService } from '@/core/entities/UserEntityService.js';
+import type { Config } from '@/config.js';
 
 const relationshipModel = {
 	id: '',
@@ -24,18 +27,25 @@ export class ApiAccountMastodon {
 	private request: FastifyRequest;
 	private client: MegalodonInterface;
 	private BASE_URL: string;
+	private mastoconverter: MastoConverters;
 
-	constructor(request: FastifyRequest, client: MegalodonInterface, BASE_URL: string) {
+	constructor(request: FastifyRequest, client: MegalodonInterface, BASE_URL: string,
+		config: Config,
+		usersrepo: UsersRepository,
+		notesrepo: NotesRepository,
+		noteeditrepo: NoteEditRepository,
+		userentity: UserEntityService,
+	) {
 		this.request = request;
 		this.client = client;
 		this.BASE_URL = BASE_URL;
+		this.mastoconverter = new MastoConverters(config, usersrepo, notesrepo, noteeditrepo, userentity);
 	}
 
 	public async verifyCredentials() {
 		try {
 			const data = await this.client.verifyAccountCredentials();
 			const acct = data.data;
-			acct.id = convertId(acct.id, IdType.MastodonId);
 			acct.display_name = acct.display_name || acct.username;
 			acct.url = `${this.BASE_URL}/@${acct.url}`;
 			acct.note = acct.note || '';
@@ -61,7 +71,7 @@ export class ApiAccountMastodon {
 	public async lookup() {
 		try {
 			const data = await this.client.search((this.request.query as any).acct, { type: 'accounts' });
-			return convertAccount(data.data.accounts[0]);
+			return this.mastoconverter.convertAccount(data.data.accounts[0]);
 		} catch (e: any) {
 			/* console.error(e)
 			console.error(e.response.data); */
@@ -79,7 +89,7 @@ export class ApiAccountMastodon {
 
 			const reqIds = [];
 			for (let i = 0; i < users.length; i++) {
-				reqIds.push(convertId(users[i], IdType.SharkeyId));
+				reqIds.push(users[i]);
 			}
 
 			const data = await this.client.getRelationships(reqIds);
@@ -93,11 +103,8 @@ export class ApiAccountMastodon {
 
 	public async getStatuses() {
 		try {
-			const data = await this.client.getAccountStatuses(
-				convertId((this.request.params as any).id, IdType.SharkeyId), 
-				convertTimelinesArgsId(argsToBools(limitToInt(this.request.query as any)))
-			);
-			return data.data.map((status) => convertStatus(status));
+			const data = await this.client.getAccountStatuses((this.request.params as any).id, argsToBools(limitToInt(this.request.query as any)));
+			return data.data.map((status) => this.mastoconverter.convertStatus(status));
 		} catch (e: any) {
 			console.error(e);
 			console.error(e.response.data);
@@ -108,10 +115,10 @@ export class ApiAccountMastodon {
 	public async getFollowers() {
 		try {
 			const data = await this.client.getAccountFollowers(
-				convertId((this.request.params as any).id, IdType.SharkeyId), 
-				convertTimelinesArgsId(limitToInt(this.request.query as any)),
+				(this.request.params as any).id, 
+				limitToInt(this.request.query as any),
 			);
-			return data.data.map((account) => convertAccount(account));
+			return data.data.map((account) => this.mastoconverter.convertAccount(account));
 		} catch (e: any) {
 			console.error(e);
 			console.error(e.response.data);
@@ -122,10 +129,10 @@ export class ApiAccountMastodon {
 	public async getFollowing() {
 		try {
 			const data = await this.client.getAccountFollowing(
-				convertId((this.request.params as any).id, IdType.SharkeyId), 
-				convertTimelinesArgsId(limitToInt(this.request.query as any)),
+				(this.request.params as any).id, 
+				limitToInt(this.request.query as any),
 			);
-			return data.data.map((account) => convertAccount(account));
+			return data.data.map((account) => this.mastoconverter.convertAccount(account));
 		} catch (e: any) {
 			console.error(e);
 			console.error(e.response.data);
@@ -135,7 +142,7 @@ export class ApiAccountMastodon {
 
 	public async addFollow() {
 		try {
-			const data = await this.client.followAccount( convertId((this.request.params as any).id, IdType.SharkeyId) );
+			const data = await this.client.followAccount( (this.request.params as any).id );
 			const acct = convertRelationship(data.data);
 			acct.following = true;
 			return acct;
@@ -148,7 +155,7 @@ export class ApiAccountMastodon {
 
 	public async rmFollow() {
 		try {
-			const data = await this.client.unfollowAccount( convertId((this.request.params as any).id, IdType.SharkeyId) );
+			const data = await this.client.unfollowAccount( (this.request.params as any).id );
 			const acct = convertRelationship(data.data);
 			acct.following = false;
 			return acct;
@@ -161,7 +168,7 @@ export class ApiAccountMastodon {
 
 	public async addBlock() {
 		try {
-			const data = await this.client.blockAccount( convertId((this.request.params as any).id, IdType.SharkeyId) );
+			const data = await this.client.blockAccount( (this.request.params as any).id );
 			return convertRelationship(data.data);
 		} catch (e: any) {
 			console.error(e);
@@ -172,7 +179,7 @@ export class ApiAccountMastodon {
 
 	public async rmBlock() {
 		try {
-			const data = await this.client.unblockAccount( convertId((this.request.params as any).id, IdType.SharkeyId) );
+			const data = await this.client.unblockAccount( (this.request.params as any).id );
 			return convertRelationship(data.data);
 		} catch (e: any) {
 			console.error(e);
@@ -184,7 +191,7 @@ export class ApiAccountMastodon {
 	public async addMute() {
 		try {
 			const data = await this.client.muteAccount(
-				convertId((this.request.params as any).id, IdType.SharkeyId),
+				(this.request.params as any).id,
                 this.request.body as any,
 			);
 			return convertRelationship(data.data);
@@ -197,7 +204,7 @@ export class ApiAccountMastodon {
 
 	public async rmMute() {
 		try {
-			const data = await this.client.unmuteAccount( convertId((this.request.params as any).id, IdType.SharkeyId) );
+			const data = await this.client.unmuteAccount( (this.request.params as any).id );
 			return convertRelationship(data.data);
 		} catch (e: any) {
 			console.error(e);
@@ -208,8 +215,8 @@ export class ApiAccountMastodon {
 
 	public async getBookmarks() {
 		try {
-			const data = await this.client.getBookmarks( convertTimelinesArgsId(limitToInt(this.request.query as any)) );
-			return data.data.map((status) => convertStatus(status));
+			const data = await this.client.getBookmarks( limitToInt(this.request.query as any) );
+			return data.data.map((status) => this.mastoconverter.convertStatus(status));
 		} catch (e: any) {
 			console.error(e);
 			console.error(e.response.data);
@@ -219,8 +226,8 @@ export class ApiAccountMastodon {
 
 	public async getFavourites() {
 		try {
-			const data = await this.client.getFavourites( convertTimelinesArgsId(limitToInt(this.request.query as any)) );
-			return data.data.map((status) => convertStatus(status));
+			const data = await this.client.getFavourites( limitToInt(this.request.query as any) );
+			return data.data.map((status) => this.mastoconverter.convertStatus(status));
 		} catch (e: any) {
 			console.error(e);
 			console.error(e.response.data);
@@ -230,8 +237,8 @@ export class ApiAccountMastodon {
 
 	public async getMutes() {
 		try {
-			const data = await this.client.getMutes( convertTimelinesArgsId(limitToInt(this.request.query as any)) );
-			return data.data.map((account) => convertAccount(account));
+			const data = await this.client.getMutes( limitToInt(this.request.query as any) );
+			return data.data.map((account) => this.mastoconverter.convertAccount(account));
 		} catch (e: any) {
 			console.error(e);
 			console.error(e.response.data);
@@ -241,8 +248,8 @@ export class ApiAccountMastodon {
 
 	public async getBlocks() {
 		try {
-			const data = await this.client.getBlocks( convertTimelinesArgsId(limitToInt(this.request.query as any)) );
-			return data.data.map((account) => convertAccount(account));
+			const data = await this.client.getBlocks( limitToInt(this.request.query as any) );
+			return data.data.map((account) => this.mastoconverter.convertAccount(account));
 		} catch (e: any) {
 			console.error(e);
 			console.error(e.response.data);
@@ -252,7 +259,7 @@ export class ApiAccountMastodon {
 
 	public async acceptFollow() {
 		try {
-			const data = await this.client.acceptFollowRequest( convertId((this.request.params as any).id, IdType.SharkeyId) );
+			const data = await this.client.acceptFollowRequest( (this.request.params as any).id );
 			return convertRelationship(data.data);
 		} catch (e: any) {
 			console.error(e);
@@ -263,7 +270,7 @@ export class ApiAccountMastodon {
 
 	public async rejectFollow() {
 		try {
-			const data = await this.client.rejectFollowRequest( convertId((this.request.params as any).id, IdType.SharkeyId) );
+			const data = await this.client.rejectFollowRequest( (this.request.params as any).id );
 			return convertRelationship(data.data);
 		} catch (e: any) {
 			console.error(e);
diff --git a/packages/backend/src/server/api/mastodon/endpoints/filter.ts b/packages/backend/src/server/api/mastodon/endpoints/filter.ts
index e27bc956fa..212c79b251 100644
--- a/packages/backend/src/server/api/mastodon/endpoints/filter.ts
+++ b/packages/backend/src/server/api/mastodon/endpoints/filter.ts
@@ -1,4 +1,4 @@
-import { IdConvertType as IdType, convertId, convertFilter } from '../converters.js';
+import { convertFilter } from '../converters.js';
 import type { MegalodonInterface } from 'megalodon';
 import type { FastifyRequest } from 'fastify';
 
@@ -23,7 +23,7 @@ export class ApiFilterMastodon {
 
 	public async getFilter() {
 		try {
-			const data = await this.client.getFilter( convertId((this.request.params as any).id, IdType.SharkeyId) );
+			const data = await this.client.getFilter( (this.request.params as any).id );
 			return convertFilter(data.data);
 		} catch (e: any) {
 			console.error(e);
@@ -45,7 +45,7 @@ export class ApiFilterMastodon {
 	public async updateFilter() {
 		try {
 			const body: any = this.request.body;
-			const data = await this.client.updateFilter(convertId((this.request.params as any).id, IdType.SharkeyId), body.pharse, body.context);
+			const data = await this.client.updateFilter((this.request.params as any).id, body.pharse, body.context);
 			return convertFilter(data.data);
 		} catch (e: any) {
 			console.error(e);
@@ -55,7 +55,7 @@ export class ApiFilterMastodon {
 
 	public async rmFilter() {
 		try {
-			const data = await this.client.deleteFilter( convertId((this.request.params as any).id, IdType.SharkeyId) );
+			const data = await this.client.deleteFilter( (this.request.params as any).id );
 			return data.data;
 		} catch (e: any) {
 			console.error(e);
diff --git a/packages/backend/src/server/api/mastodon/endpoints/notifications.ts b/packages/backend/src/server/api/mastodon/endpoints/notifications.ts
index dc801dd053..c4628b58c4 100644
--- a/packages/backend/src/server/api/mastodon/endpoints/notifications.ts
+++ b/packages/backend/src/server/api/mastodon/endpoints/notifications.ts
@@ -1,5 +1,4 @@
-import { IdConvertType as IdType, convertId, convertNotification } from '../converters.js';
-import { convertTimelinesArgsId } from './timeline.js';
+import { convertNotification } from '../converters.js';
 import type { MegalodonInterface, Entity } from 'megalodon';
 import type { FastifyRequest } from 'fastify';
 
@@ -19,7 +18,7 @@ export class ApiNotifyMastodon {
 
 	public async getNotifications() {
 		try {
-			const data = await this.client.getNotifications( convertTimelinesArgsId(toLimitToInt(this.request.query)) );
+			const data = await this.client.getNotifications( toLimitToInt(this.request.query) );
 			const notifs = data.data;
 			const processed = notifs.map((n: Entity.Notification) => {
 				const convertedn = convertNotification(n);
@@ -39,7 +38,7 @@ export class ApiNotifyMastodon {
 
 	public async getNotification() {
 		try {
-			const data = await this.client.getNotification( convertId((this.request.params as any).id, IdType.SharkeyId) );
+			const data = await this.client.getNotification( (this.request.params as any).id );
 			const notif = convertNotification(data.data);
 			if (notif.type !== 'follow' && notif.type !== 'follow_request' && notif.type === 'reaction') notif.type = 'favourite';
 			return notif;
@@ -51,7 +50,7 @@ export class ApiNotifyMastodon {
 
 	public async rmNotification() {
 		try {
-			const data = await this.client.dismissNotification( convertId((this.request.params as any).id, IdType.SharkeyId) );
+			const data = await this.client.dismissNotification( (this.request.params as any).id );
 			return data.data;
 		} catch (e: any) {
 			console.error(e);
diff --git a/packages/backend/src/server/api/mastodon/endpoints/search.ts b/packages/backend/src/server/api/mastodon/endpoints/search.ts
index 5c68402ed8..d5839ff1c8 100644
--- a/packages/backend/src/server/api/mastodon/endpoints/search.ts
+++ b/packages/backend/src/server/api/mastodon/endpoints/search.ts
@@ -1,6 +1,6 @@
 import { Converter } from 'megalodon';
 import { convertAccount, convertStatus } from '../converters.js';
-import { convertTimelinesArgsId, limitToInt } from './timeline.js';
+import { limitToInt } from './timeline.js';
 import type { MegalodonInterface } from 'megalodon';
 import type { FastifyRequest } from 'fastify';
 
@@ -71,7 +71,7 @@ export class ApiSearchMastodon {
 
 	public async SearchV1() {
 		try {
-			const query: any = convertTimelinesArgsId(limitToInt(this.request.query as any));
+			const query: any = limitToInt(this.request.query as any);
 			const type = query.type || '';
 			const data = await this.client.search(query.q, { type: type, ...query });
 			return data.data;
@@ -83,7 +83,7 @@ export class ApiSearchMastodon {
 
 	public async SearchV2() {
 		try {
-			const query: any = convertTimelinesArgsId(limitToInt(this.request.query as any));
+			const query: any = limitToInt(this.request.query as any);
 			const type = query.type;
 			const acct = !type || type === 'accounts' ? await this.client.search(query.q, { type: 'accounts', ...query }) : null;
 			const stat = !type || type === 'statuses' ? await this.client.search(query.q, { type: 'statuses', ...query }) : null;
diff --git a/packages/backend/src/server/api/mastodon/endpoints/status.ts b/packages/backend/src/server/api/mastodon/endpoints/status.ts
index 2690a1036f..a15e9761b4 100644
--- a/packages/backend/src/server/api/mastodon/endpoints/status.ts
+++ b/packages/backend/src/server/api/mastodon/endpoints/status.ts
@@ -1,8 +1,8 @@
 import querystring from 'querystring';
 import { emojiRegexAtStartToEnd } from '@/misc/emoji-regex.js';
-import { convertId, IdConvertType as IdType, convertAccount, convertAttachment, convertPoll, convertStatusSource, MastoConverters } from '../converters.js';
+import { convertAttachment, convertPoll, convertStatusSource, MastoConverters } from '../converters.js';
 import { getClient } from '../MastodonApiServerService.js';
-import { convertTimelinesArgsId, limitToInt } from './timeline.js';
+import { limitToInt } from './timeline.js';
 import type { Entity } from 'megalodon';
 import type { FastifyInstance } from 'fastify';
 import type { Config } from '@/config.js';
@@ -29,7 +29,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.getStatus(convertId(_request.params.id, IdType.SharkeyId));
+				const data = await client.getStatus(_request.params.id);
 				reply.send(await this.mastoconverter.convertStatus(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -44,8 +44,8 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.getStatusSource(convertId(_request.params.id, IdType.SharkeyId));
-				reply.send(convertStatusSource(data.data));
+				const data = await client.getStatusSource(_request.params.id);
+				reply.send(data.data);
 			} catch (e: any) {
 				console.error(e);
 				reply.code(_request.is404 ? 404 : 401).send(e.response.data);
@@ -60,10 +60,7 @@ export class ApiStatusMastodon {
 			const client = getClient(BASE_URL, accessTokens);
 			const query: any = _request.query;
 			try {
-				const data = await client.getStatusContext(
-					convertId(_request.params.id, IdType.SharkeyId),
-					convertTimelinesArgsId(limitToInt(query)),
-				);
+				const data = await client.getStatusContext(_request.params.id, limitToInt(query));
 				data.data.ancestors = await Promise.all(data.data.ancestors.map(async (status: Entity.Status) => await this.mastoconverter.convertStatus(status)));
 				data.data.descendants = await Promise.all(data.data.descendants.map(async (status: Entity.Status) => await this.mastoconverter.convertStatus(status)));
 				reply.send(data.data);
@@ -91,8 +88,8 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.getStatusRebloggedBy(convertId(_request.params.id, IdType.SharkeyId));
-				reply.send(data.data.map((account: Entity.Account) => convertAccount(account)));
+				const data = await client.getStatusRebloggedBy(_request.params.id);
+				reply.send(data.data.map((account: Entity.Account) => this.mastoconverter.convertAccount(account)));
 			} catch (e: any) {
 				console.error(e);
 				reply.code(401).send(e.response.data);
@@ -106,8 +103,8 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.getStatusFavouritedBy(convertId(_request.params.id, IdType.SharkeyId));
-				reply.send(data.data.map((account: Entity.Account) => convertAccount(account)));
+				const data = await client.getStatusFavouritedBy(_request.params.id);
+				reply.send(data.data.map((account: Entity.Account) => this.mastoconverter.convertAccount(account)));
 			} catch (e: any) {
 				console.error(e);
 				reply.code(401).send(e.response.data);
@@ -121,7 +118,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.getMedia(convertId(_request.params.id, IdType.SharkeyId));
+				const data = await client.getMedia(_request.params.id);
 				reply.send(convertAttachment(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -136,7 +133,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.getPoll(convertId(_request.params.id, IdType.SharkeyId));
+				const data = await client.getPoll(_request.params.id);
 				reply.send(convertPoll(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -152,7 +149,7 @@ export class ApiStatusMastodon {
 			const client = getClient(BASE_URL, accessTokens);
 			const body: any = _request.body;
 			try {
-				const data = await client.votePoll(convertId(_request.params.id, IdType.SharkeyId), body.choices);
+				const data = await client.votePoll(_request.params.id, body.choices);
 				reply.send(convertPoll(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -168,8 +165,6 @@ export class ApiStatusMastodon {
 			const client = getClient(BASE_URL, accessTokens);
 			let body: any = _request.body;
 			try {
-				if (body.in_reply_to_id) body.in_reply_to_id = convertId(body.in_reply_to_id, IdType.SharkeyId);
-				if (body.quote_id) body.quote_id = convertId(body.quote_id, IdType.SharkeyId);
 				if (
 					(!body.poll && body['poll[options][]']) ||
                     (!body.media_ids && body['media_ids[]'])
@@ -201,9 +196,6 @@ export class ApiStatusMastodon {
 				}
 				if (!body.media_ids) body.media_ids = undefined;
 				if (body.media_ids && !body.media_ids.length) body.media_ids = undefined;
-				if (body.media_ids) {
-					body.media_ids = (body.media_ids as string[]).map((p) => convertId(p, IdType.SharkeyId));
-				}
 
 				const { sensitive } = body;
 				body.sensitive = typeof sensitive === 'string' ? sensitive === 'true' : sensitive;
@@ -241,10 +233,7 @@ export class ApiStatusMastodon {
 			try {
 				if (!body.media_ids) body.media_ids = undefined;
 				if (body.media_ids && !body.media_ids.length) body.media_ids = undefined;
-				if (body.media_ids) {
-					body.media_ids = (body.media_ids as string[]).map((p) => convertId(p, IdType.SharkeyId));
-				}
-				const data = await client.editStatus(convertId(_request.params.id, IdType.SharkeyId), body);
+				const data = await client.editStatus(_request.params.id, body);
 				reply.send(await this.mastoconverter.convertStatus(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -259,10 +248,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = (await client.createEmojiReaction(
-					convertId(_request.params.id, IdType.SharkeyId),
-					'❤',
-				)) as any;
+				const data = (await client.createEmojiReaction(_request.params.id, '❤')) as any;
 				reply.send(await this.mastoconverter.convertStatus(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -277,10 +263,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.deleteEmojiReaction(
-					convertId(_request.params.id, IdType.SharkeyId),
-					'❤',
-				);
+				const data = await client.deleteEmojiReaction(_request.params.id, '❤');
 				reply.send(await this.mastoconverter.convertStatus(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -295,7 +278,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.reblogStatus(convertId(_request.params.id, IdType.SharkeyId));
+				const data = await client.reblogStatus(_request.params.id);
 				reply.send(await this.mastoconverter.convertStatus(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -310,7 +293,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.unreblogStatus(convertId(_request.params.id, IdType.SharkeyId));
+				const data = await client.unreblogStatus(_request.params.id);
 				reply.send(await this.mastoconverter.convertStatus(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -325,7 +308,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.bookmarkStatus(convertId(_request.params.id, IdType.SharkeyId));
+				const data = await client.bookmarkStatus(_request.params.id);
 				reply.send(await this.mastoconverter.convertStatus(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -340,7 +323,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.unbookmarkStatus(convertId(_request.params.id, IdType.SharkeyId));
+				const data = await client.unbookmarkStatus(_request.params.id);
 				reply.send(await this.mastoconverter.convertStatus(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -355,7 +338,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.pinStatus(convertId(_request.params.id, IdType.SharkeyId));
+				const data = await client.pinStatus(_request.params.id);
 				reply.send(await this.mastoconverter.convertStatus(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -370,7 +353,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.unpinStatus(convertId(_request.params.id, IdType.SharkeyId));
+				const data = await client.unpinStatus(_request.params.id);
 				reply.send(await this.mastoconverter.convertStatus(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -385,7 +368,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.createEmojiReaction(convertId(_request.params.id, IdType.SharkeyId), _request.params.name);
+				const data = await client.createEmojiReaction(_request.params.id, _request.params.name);
 				reply.send(await this.mastoconverter.convertStatus(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -400,7 +383,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.deleteEmojiReaction(convertId(_request.params.id, IdType.SharkeyId), _request.params.name);
+				const data = await client.deleteEmojiReaction(_request.params.id, _request.params.name);
 				reply.send(await this.mastoconverter.convertStatus(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -415,7 +398,7 @@ export class ApiStatusMastodon {
 			const accessTokens = _request.headers.authorization;
 			const client = getClient(BASE_URL, accessTokens);
 			try {
-				const data = await client.deleteStatus(convertId(_request.params.id, IdType.SharkeyId));
+				const data = await client.deleteStatus(_request.params.id);
 				reply.send(data.data);
 			} catch (e: any) {
 				console.error(e);
diff --git a/packages/backend/src/server/api/mastodon/endpoints/timeline.ts b/packages/backend/src/server/api/mastodon/endpoints/timeline.ts
index e4f510ea2b..b1b487f394 100644
--- a/packages/backend/src/server/api/mastodon/endpoints/timeline.ts
+++ b/packages/backend/src/server/api/mastodon/endpoints/timeline.ts
@@ -1,5 +1,5 @@
 import { ParsedUrlQuery } from 'querystring';
-import { convertId, IdConvertType as IdType, convertAccount, convertConversation, convertList, MastoConverters } from '../converters.js';
+import { convertConversation, convertList, MastoConverters } from '../converters.js';
 import { getClient } from '../MastodonApiServerService.js';
 import type { Entity } from 'megalodon';
 import type { FastifyInstance } from 'fastify';
@@ -32,13 +32,6 @@ export function argsToBools(q: ParsedUrlQuery) {
 	return q;
 }
 
-export function convertTimelinesArgsId(q: ParsedUrlQuery) {
-	if (typeof q.min_id === 'string') q.min_id = convertId(q.min_id, IdType.SharkeyId);
-	if (typeof q.max_id === 'string') q.max_id = convertId(q.max_id, IdType.SharkeyId);
-	if (typeof q.since_id === 'string') q.since_id = convertId(q.since_id, IdType.SharkeyId);
-	return q;
-}
-
 export class ApiTimelineMastodon {
 	private fastify: FastifyInstance;
 	private mastoconverter: MastoConverters;
@@ -56,8 +49,8 @@ export class ApiTimelineMastodon {
 			try {
 				const query: any = _request.query;
 				const data = query.local === 'true'
-					? await client.getLocalTimeline(convertTimelinesArgsId(argsToBools(limitToInt(query))))
-					: await client.getPublicTimeline(convertTimelinesArgsId(argsToBools(limitToInt(query))));
+					? await client.getLocalTimeline(argsToBools(limitToInt(query)))
+					: await client.getPublicTimeline(argsToBools(limitToInt(query)));
 				reply.send(await Promise.all(data.data.map(async (status: Entity.Status) => await this.mastoconverter.convertStatus(status))));
 			} catch (e: any) {
 				console.error(e);
@@ -74,7 +67,7 @@ export class ApiTimelineMastodon {
 			const client = getClient(BASE_URL, accessTokens);
 			try {
 				const query: any = _request.query;
-				const data = await client.getHomeTimeline(convertTimelinesArgsId(limitToInt(query)));
+				const data = await client.getHomeTimeline(limitToInt(query));
 				reply.send(await Promise.all(data.data.map(async (status: Entity.Status) => await this.mastoconverter.convertStatus(status))));
 			} catch (e: any) {
 				console.error(e);
@@ -92,7 +85,7 @@ export class ApiTimelineMastodon {
 			try {
 				const query: any = _request.query;
 				const params: any = _request.params;
-				const data = await client.getTagTimeline(params.hashtag, convertTimelinesArgsId(limitToInt(query)));
+				const data = await client.getTagTimeline(params.hashtag, limitToInt(query));
 				reply.send(await Promise.all(data.data.map(async (status: Entity.Status) => await this.mastoconverter.convertStatus(status))));
 			} catch (e: any) {
 				console.error(e);
@@ -110,7 +103,7 @@ export class ApiTimelineMastodon {
 			try {
 				const query: any = _request.query;
 				const params: any = _request.params;
-				const data = await client.getListTimeline(convertId(params.id, IdType.SharkeyId), convertTimelinesArgsId(limitToInt(query)));
+				const data = await client.getListTimeline(params.id, limitToInt(query));
 				reply.send(await Promise.all(data.data.map(async (status: Entity.Status) => await this.mastoconverter.convertStatus(status))));
 			} catch (e: any) {
 				console.error(e);
@@ -127,7 +120,7 @@ export class ApiTimelineMastodon {
 			const client = getClient(BASE_URL, accessTokens);
 			try {
 				const query: any = _request.query;
-				const data = await client.getConversationTimeline(convertTimelinesArgsId(limitToInt(query)));
+				const data = await client.getConversationTimeline(limitToInt(query));
 				reply.send(data.data.map((conversation: Entity.Conversation) => convertConversation(conversation)));
 			} catch (e: any) {
 				console.error(e);
@@ -144,7 +137,7 @@ export class ApiTimelineMastodon {
 				const accessTokens = _request.headers.authorization;
 				const client = getClient(BASE_URL, accessTokens);
 				const params: any = _request.params;
-				const data = await client.getList(convertId(params.id, IdType.SharkeyId));
+				const data = await client.getList(params.id);
 				reply.send(convertList(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -178,11 +171,8 @@ export class ApiTimelineMastodon {
 				const client = getClient(BASE_URL, accessTokens);
 				const params: any = _request.params;
 				const query: any = _request.query;
-				const data = await client.getAccountsInList(
-					convertId(params.id, IdType.SharkeyId),
-					convertTimelinesArgsId(query),
-				);
-				reply.send(data.data.map((account: Entity.Account) => convertAccount(account)));
+				const data = await client.getAccountsInList(params.id, query);
+				reply.send(data.data.map((account: Entity.Account) => this.mastoconverter.convertAccount(account)));
 			} catch (e: any) {
 				console.error(e);
 				console.error(e.response.data);
@@ -199,10 +189,7 @@ export class ApiTimelineMastodon {
 				const client = getClient(BASE_URL, accessTokens);
 				const params: any = _request.params;
 				const query: any = _request.query;
-				const data = await client.addAccountsToList(
-					convertId(params.id, IdType.SharkeyId),
-					(query.accounts_id as string[]).map((id) => convertId(id, IdType.SharkeyId)),
-				);
+				const data = await client.addAccountsToList(params.id, query.accounts_id);
 				reply.send(data.data);
 			} catch (e: any) {
 				console.error(e);
@@ -220,10 +207,7 @@ export class ApiTimelineMastodon {
 				const client = getClient(BASE_URL, accessTokens);
 				const params: any = _request.params;
 				const query: any = _request.query;
-				const data = await client.deleteAccountsFromList(
-					convertId(params.id, IdType.SharkeyId),
-					(query.accounts_id as string[]).map((id) => convertId(id, IdType.SharkeyId)),
-				);
+				const data = await client.deleteAccountsFromList(params.id, query.accounts_id);
 				reply.send(data.data);
 			} catch (e: any) {
 				console.error(e);
@@ -258,7 +242,7 @@ export class ApiTimelineMastodon {
 				const client = getClient(BASE_URL, accessTokens);
 				const body: any = _request.body;
 				const params: any = _request.params;
-				const data = await client.updateList(convertId(params.id, IdType.SharkeyId), body.title);
+				const data = await client.updateList(params.id, body.title);
 				reply.send(convertList(data.data));
 			} catch (e: any) {
 				console.error(e);
@@ -275,7 +259,7 @@ export class ApiTimelineMastodon {
 				const accessTokens = _request.headers.authorization;
 				const client = getClient(BASE_URL, accessTokens);
 				const params: any = _request.params;
-				const data = await client.deleteList(convertId(params.id, IdType.SharkeyId));
+				const data = await client.deleteList(params.id);
 				reply.send(data.data);
 			} catch (e: any) {
 				console.error(e);
diff --git a/packages/megalodon/package.json b/packages/megalodon/package.json
index ebd958834e..3bee6b8ae8 100644
--- a/packages/megalodon/package.json
+++ b/packages/megalodon/package.json
@@ -64,15 +64,15 @@
     "socks-proxy-agent": "^8.0.2",
     "typescript": "5.1.6",
     "uuid": "^9.0.1",
-    "ws": "8.14.2"
-  },
-  "devDependencies": {
+    "ws": "8.14.2",
     "@types/core-js": "^2.5.6",
     "@types/form-data": "^2.5.0",
     "@types/jest": "^29.5.5",
     "@types/object-assign-deep": "^0.4.1",
     "@types/parse-link-header": "^2.0.1",
-    "@types/uuid": "^9.0.4",
+    "@types/uuid": "^9.0.4"
+  },
+  "devDependencies": {
     "@typescript-eslint/eslint-plugin": "^6.7.2",
     "@typescript-eslint/parser": "^6.7.2",
     "eslint": "^8.49.0",
diff --git a/packages/megalodon/src/entities/account.ts b/packages/megalodon/src/entities/account.ts
index 89c0f17c4b..e2219dd041 100644
--- a/packages/megalodon/src/entities/account.ts
+++ b/packages/megalodon/src/entities/account.ts
@@ -5,15 +5,16 @@
 namespace Entity {
   export type Account = {
     id: string
+    fqn?: string
     username: string
     acct: string
     display_name: string
     locked: boolean
     discoverable?: boolean
-    group: boolean | null
-    noindex: boolean | null
-    suspended: boolean | null
-    limited: boolean | null
+    group?: boolean | null
+    noindex?: boolean | null
+    suspended?: boolean | null
+    limited?: boolean | null
     created_at: string
     followers_count: number
     following_count: number
diff --git a/packages/megalodon/src/entities/status.ts b/packages/megalodon/src/entities/status.ts
index 8842981eb3..da36a04717 100644
--- a/packages/megalodon/src/entities/status.ts
+++ b/packages/megalodon/src/entities/status.ts
@@ -17,7 +17,7 @@ namespace Entity {
     in_reply_to_account_id: string | null
     reblog: Status | null
     content: string
-    plain_content: string | null
+    plain_content?: string | null
     created_at: string
     emojis: Emoji[]
     replies_count: number
diff --git a/packages/megalodon/src/misskey.ts b/packages/megalodon/src/misskey.ts
index de2b6e2e78..a8c7c44d00 100644
--- a/packages/megalodon/src/misskey.ts
+++ b/packages/megalodon/src/misskey.ts
@@ -2017,7 +2017,7 @@ export default class Misskey implements MegalodonInterface {
       }
       if (options.exclude_type) {
         params = Object.assign(params, {
-          excludeType: options.exclude_type.map(e => MisskeyAPI.Converter.encodeNotificationType(e))
+          excludeTypes: options.exclude_type.map(e => MisskeyAPI.Converter.encodeNotificationType(e))
         })
       }
     }
diff --git a/packages/megalodon/src/misskey/api_client.ts b/packages/megalodon/src/misskey/api_client.ts
index c30886f903..66347fc469 100644
--- a/packages/megalodon/src/misskey/api_client.ts
+++ b/packages/megalodon/src/misskey/api_client.ts
@@ -78,8 +78,10 @@ namespace MisskeyAPI {
 				acct = `${u.username}@${u.host}`;
 				acctUrl = `https://${u.host}/@${u.username}`;
 			}
+      const fqn = `${u.username}@${u.host ?? host}`;
       return {
         id: u.id,
+        fqn: fqn,
         username: u.username,
         acct: acct,
         display_name: u.name ? u.name : '',
@@ -465,8 +467,8 @@ namespace MisskeyAPI {
 
     export const stats = (s: Entity.Stats): MegalodonEntity.Stats => {
       return {
-        user_count: s.usersCount,
-        status_count: s.notesCount,
+        user_count: s.originalUsersCount,
+        status_count: s.originalNotesCount,
         domain_count: s.instances
       }
     }