diff --git a/packages/backend/src/server/api/mastodon/endpoints/account.ts b/packages/backend/src/server/api/mastodon/endpoints/account.ts
index 1c5e31fe8d..bd1a2e6485 100644
--- a/packages/backend/src/server/api/mastodon/endpoints/account.ts
+++ b/packages/backend/src/server/api/mastodon/endpoints/account.ts
@@ -359,7 +359,7 @@ export function apiAccountMastodon(router: Router): void {
 		const accessTokens = ctx.headers.authorization;
 		const client = getClient(BASE_URL, accessTokens);
 		try {
-			const data = (await client.getBookmarks(ctx.query as any)) as any;
+			const data = (await client.getBookmarks(limitToInt(ctx.query as any))) as any;
 			let resp = data.data;
 			for (let statIdx = 0; statIdx < resp.length; statIdx++) {
 				resp[statIdx].id = convertId(resp[statIdx].id, IdType.MastodonId);
@@ -383,7 +383,7 @@ export function apiAccountMastodon(router: Router): void {
 		const accessTokens = ctx.headers.authorization;
 		const client = getClient(BASE_URL, accessTokens);
 		try {
-			const data = await client.getFavourites(ctx.query as any);
+			const data = await client.getFavourites(limitToInt(ctx.query as any));
 			let resp = data.data;
 			for (let statIdx = 0; statIdx < resp.length; statIdx++) {
 				resp[statIdx].id = convertId(resp[statIdx].id, IdType.MastodonId);
@@ -407,7 +407,7 @@ export function apiAccountMastodon(router: Router): void {
 		const accessTokens = ctx.headers.authorization;
 		const client = getClient(BASE_URL, accessTokens);
 		try {
-			const data = await client.getMutes(ctx.query as any);
+			const data = await client.getMutes(limitToInt(ctx.query as any));
 			let resp = data.data;
 			for (let acctIdx = 0; acctIdx < resp.length; acctIdx++) {
 				resp[acctIdx].id = convertId(resp[acctIdx].id, IdType.MastodonId);
@@ -425,7 +425,7 @@ export function apiAccountMastodon(router: Router): void {
 		const accessTokens = ctx.headers.authorization;
 		const client = getClient(BASE_URL, accessTokens);
 		try {
-			const data = await client.getBlocks(ctx.query as any);
+			const data = await client.getBlocks(limitToInt(ctx.query as any));
 			let resp = data.data;
 			for (let acctIdx = 0; acctIdx < resp.length; acctIdx++) {
 				resp[acctIdx].id = convertId(resp[acctIdx].id, IdType.MastodonId);
diff --git a/packages/backend/src/server/api/mastodon/endpoints/status.ts b/packages/backend/src/server/api/mastodon/endpoints/status.ts
index d04b7a8b95..0128201400 100644
--- a/packages/backend/src/server/api/mastodon/endpoints/status.ts
+++ b/packages/backend/src/server/api/mastodon/endpoints/status.ts
@@ -4,6 +4,8 @@ import { emojiRegexAtStartToEnd } from "@/misc/emoji-regex.js";
 import axios from "axios";
 import querystring from 'node:querystring'
 import qs from 'qs'
+import { limitToInt } from "./timeline.js";
+
 function normalizeQuery(data: any) {
     const str = querystring.stringify(data);
     return qs.parse(str);
@@ -101,7 +103,7 @@ export function apiStatusMastodon(router: Router): void {
 			const client = getClient(BASE_URL, accessTokens);
 			try {
 				const id = ctx.params.id;
-				const data = await client.getStatusContext(id, ctx.query as any);
+				const data = await client.getStatusContext(id, limitToInt(ctx.query as any));
 				const status = await client.getStatus(id);
 				const reactionsAxios = await axios.get(
 					`${BASE_URL}/api/notes/reactions?noteId=${id}`,
diff --git a/packages/backend/src/server/api/mastodon/endpoints/timeline.ts b/packages/backend/src/server/api/mastodon/endpoints/timeline.ts
index 58ca8d6771..23729e4804 100644
--- a/packages/backend/src/server/api/mastodon/endpoints/timeline.ts
+++ b/packages/backend/src/server/api/mastodon/endpoints/timeline.ts
@@ -15,13 +15,16 @@ export function limitToInt(q: ParsedUrlQuery) {
 }
 
 export function argsToBools(q: ParsedUrlQuery) {
+	// Values taken from https://docs.joinmastodon.org/client/intro/#boolean
+	const toBoolean = (value: string) => !['0', 'f', 'F', 'false', 'FALSE', 'off', 'OFF'].includes(value);
+
 	let object: any = q;
 	if (q.only_media)
 		if (typeof q.only_media === "string")
-			object.only_media = q.only_media.toLowerCase() === "true";
+			object.only_media = toBoolean(q.only_media);
 	if (q.exclude_replies)
 		if (typeof q.exclude_replies === "string")
-			object.exclude_replies = q.exclude_replies.toLowerCase() === "true";
+			object.exclude_replies = toBoolean(q.exclude_replies);
 	return q;
 }