diff --git a/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts b/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
index 3af93fda66..9d1ee61053 100644
--- a/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
+++ b/packages/backend/src/server/api/mastodon/MastodonApiServerService.ts
@@ -5,12 +5,14 @@ import { DI } from '@/di-symbols.js';
 import { bindThis } from '@/decorators.js';
 import megalodon, { MegalodonInterface } from "megalodon";
 import type { FastifyInstance, FastifyPluginOptions } from 'fastify';
-import { convertId, IdConvertType as IdType, convertAccount, convertAnnouncement, convertFilter, convertAttachment } from './converters.js';
+import { convertId, IdConvertType as IdType, convertAccount, convertAnnouncement, convertFilter, convertAttachment, convertFeaturedTag } from './converters.js';
 import { IsNull } from 'typeorm';
 import type { Config } from '@/config.js';
 import { getInstance } from './endpoints/meta.js';
 import { MetaService } from '@/core/MetaService.js';
 import multer from 'fastify-multer';
+import { apiAuthMastodon } from './endpoints/auth.js';
+import { apiAccountMastodon } from './endpoints/account.js';
 
 const staticAssets = fileURLToPath(new URL('../../../../assets/', import.meta.url));
 
@@ -173,6 +175,19 @@ export class MastodonApiServerService {
                 reply.code(401).send(e.response.data);
             }
         });
+
+        fastify.post("/v1/apps", async (_request, reply) => {
+            const BASE_URL = `${_request.protocol}://${_request.hostname}`;
+            const client = getClient(BASE_URL, ""); // we are using this here, because in private mode some info isnt
+            // displayed without being logged in
+            try {
+                const data = await apiAuthMastodon(_request, client);
+                reply.send(data);
+            } catch (e: any) {
+                console.error(e);
+                reply.code(401).send(e.response.data);
+            }
+        });
     
         fastify.get("/v1/preferences", async (_request, reply) => {
             const BASE_URL = `${_request.protocol}://${_request.hostname}`;
@@ -186,7 +201,145 @@ export class MastodonApiServerService {
                 console.error(e);
                 reply.code(401).send(e.response.data);
             }
-        });    
+        });
+
+        //#region Accounts
+        fastify.get("/v1/accounts/verify_credentials", async (_request, reply) => {
+            const BASE_URL = `${_request.protocol}://${_request.hostname}`;
+            const accessTokens = _request.headers.authorization;
+            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);
+                reply.send(await account.verifyCredentials());
+            } catch (e: any) {
+                console.error(e);
+                reply.code(401).send(e.response.data);
+            }
+        });
+
+        fastify.patch("/v1/accounts/update_credentials", async (_request, reply) => {
+            const BASE_URL = `${_request.protocol}://${_request.hostname}`;
+            const accessTokens = _request.headers.authorization;
+            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);
+                reply.send(await account.updateCredentials());
+            } catch (e: any) {
+                console.error(e);
+                reply.code(401).send(e.response.data);
+            }
+        });
+
+        fastify.get("/v1/accounts/lookup", async (_request, reply) => {
+            const BASE_URL = `${_request.protocol}://${_request.hostname}`;
+            const accessTokens = _request.headers.authorization;
+            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);
+                reply.send(await account.lookup());
+            } catch (e: any) {
+                console.error(e);
+                reply.code(401).send(e.response.data);
+            }
+        });
+
+        fastify.get("/v1/accounts/relationships", async (_request, reply) => {
+            const BASE_URL = `${_request.protocol}://${_request.hostname}`;
+            const accessTokens = _request.headers.authorization;
+            const client = getClient(BASE_URL, accessTokens); // we are using this here, because in private mode some info isnt
+            // displayed without being logged in
+            let users;
+            try {
+                let ids = _request.query ? (_request.query as any)["id[]"] : null;
+                if (typeof ids === "string") {
+                    ids = [ids];
+                }
+                users = ids;
+                const account = new apiAccountMastodon(_request, client, BASE_URL);
+                reply.send(await account.getRelationships(users));
+            } catch (e: any) {
+                console.error(e);
+                let data = e.response.data;
+                data.users = users;
+                console.error(data);
+                reply.code(401).send(data);
+            }
+        });
+
+        fastify.get<{ Params: { id: string } }>("/v1/accounts/:id", async (_request, reply) => {
+            const BASE_URL = `${_request.protocol}://${_request.hostname}`;
+            const accessTokens = _request.headers.authorization;
+            const client = getClient(BASE_URL, accessTokens);
+            try {
+                const sharkId = convertId(_request.params.id, IdType.SharkeyId);
+                const data = await client.getAccount(sharkId);
+                reply.send(convertAccount(data.data));
+            } catch (e: any) {
+                console.error(e);
+                console.error(e.response.data);
+                reply.code(401).send(e.response.data);
+            }
+        });
+
+        fastify.get<{ Params: { id: string } }>("/v1/accounts/:id/statuses", async (_request, reply) => {
+            const BASE_URL = `${_request.protocol}://${_request.hostname}`;
+            const accessTokens = _request.headers.authorization;
+            const client = getClient(BASE_URL, accessTokens);
+            try {
+                const account = new apiAccountMastodon(_request, client, BASE_URL);
+                reply.send(await account.getStatuses());
+            } catch (e: any) {
+                console.error(e);
+                console.error(e.response.data);
+                reply.code(401).send(e.response.data);
+            }
+        });
+
+        fastify.get<{ Params: { id: string } }>("/v1/accounts/:id/featured_tags", async (_request, reply) => {
+            const BASE_URL = `${_request.protocol}://${_request.hostname}`;
+            const accessTokens = _request.headers.authorization;
+            const client = getClient(BASE_URL, accessTokens);
+            try {
+                const data = await client.getAccountFeaturedTags(convertId(_request.params.id, IdType.SharkeyId));
+                reply.send(data.data.map((tag) => convertFeaturedTag(tag)));
+            } catch (e: any) {
+                console.error(e);
+                console.error(e.response.data);
+                reply.code(401).send(e.response.data);
+            }
+        });
+
+        fastify.get<{ Params: { id: string } }>("/v1/accounts/:id/followers", async (_request, reply) => {
+            const BASE_URL = `${_request.protocol}://${_request.hostname}`;
+            const accessTokens = _request.headers.authorization;
+            const client = getClient(BASE_URL, accessTokens);
+            try {
+                const account = new apiAccountMastodon(_request, client, BASE_URL);
+                reply.send(await account.getFollowers());
+            } catch (e: any) {
+                console.error(e);
+                console.error(e.response.data);
+                reply.code(401).send(e.response.data);
+            }
+        });
+
+        fastify.get<{ Params: { id: string } }>("/v1/accounts/:id/following", async (_request, reply) => {
+            const BASE_URL = `${_request.protocol}://${_request.hostname}`;
+            const accessTokens = _request.headers.authorization;
+            const client = getClient(BASE_URL, accessTokens);
+            try {
+                const account = new apiAccountMastodon(_request, client, BASE_URL);
+                reply.send(await account.getFollowing());
+            } catch (e: any) {
+                console.error(e);
+                console.error(e.response.data);
+                reply.code(401).send(e.response.data);
+            }
+        });
+        //#endregion
 		done();
 	}
 }
\ No newline at end of file