diff --git a/package.json b/package.json
index e13ce8c85..4574cd63d 100644
--- a/package.json
+++ b/package.json
@@ -115,7 +115,6 @@
     "intl-messageformat": "10.5.11",
     "intl-pluralrules": "^2.0.0",
     "isomorphic-dompurify": "^2.3.0",
-    "ky": "^1.7.2",
     "leaflet": "^1.8.0",
     "lexical": "^0.18.0",
     "line-awesome": "^1.3.0",
diff --git a/src/api/HTTPError.ts b/src/api/HTTPError.ts
new file mode 100644
index 000000000..4be34b343
--- /dev/null
+++ b/src/api/HTTPError.ts
@@ -0,0 +1,10 @@
+export class HTTPError extends Error {
+
+  response: Response;
+
+  constructor(response: Response) {
+    super(response.statusText);
+    this.response = response;
+  }
+
+}
\ No newline at end of file
diff --git a/src/api/MastodonClient.ts b/src/api/MastodonClient.ts
new file mode 100644
index 000000000..22eb35457
--- /dev/null
+++ b/src/api/MastodonClient.ts
@@ -0,0 +1,93 @@
+import { HTTPError } from './HTTPError';
+
+interface Opts {
+  searchParams?: Record<string, string | number | boolean>;
+  headers?: Record<string, string>;
+  signal?: AbortSignal;
+}
+
+export class MastodonClient {
+
+  readonly baseUrl: string;
+
+  private fetch: typeof fetch;
+  private accessToken?: string;
+
+  constructor(baseUrl: string, accessToken?: string, fetch = globalThis.fetch.bind(globalThis)) {
+    this.fetch = fetch;
+    this.baseUrl = baseUrl;
+    this.accessToken = accessToken;
+  }
+
+  async get(path: string, opts: Opts = {}): Promise<Response> {
+    return this.request('GET', path, undefined, opts);
+  }
+
+  async post(path: string, data?: unknown, opts: Opts = {}): Promise<Response> {
+    return this.request('POST', path, data, opts);
+  }
+
+  async put(path: string, data?: unknown, opts: Opts = {}): Promise<Response> {
+    return this.request('PUT', path, data, opts);
+  }
+
+  async delete(path: string, opts: Opts = {}): Promise<Response> {
+    return this.request('DELETE', path, undefined, opts);
+  }
+
+  async patch(path: string, data: unknown, opts: Opts = {}): Promise<Response> {
+    return this.request('PATCH', path, data, opts);
+  }
+
+  async head(path: string, opts: Opts = {}): Promise<Response> {
+    return this.request('HEAD', path, undefined, opts);
+  }
+
+  async options(path: string, opts: Opts = {}): Promise<Response> {
+    return this.request('OPTIONS', path, undefined, opts);
+  }
+
+  async request(method: string, path: string, data: unknown, opts: Opts = {}): Promise<Response> {
+    const url = new URL(path, this.baseUrl);
+
+    if (opts.searchParams) {
+      const params = Object
+        .entries(opts.searchParams)
+        .map(([key, value]) => ([key, String(value)]));
+
+      url.search = new URLSearchParams(params).toString();
+    }
+
+    const headers = new Headers(opts.headers);
+
+    if (this.accessToken) {
+      headers.set('Authorization', `Bearer ${this.accessToken}`);
+    }
+
+    let body: BodyInit | undefined;
+
+    if (data instanceof FormData) {
+      headers.set('Content-Type', 'multipart/form-data');
+      body = data;
+    } else if (data !== undefined) {
+      headers.set('Content-Type', 'application/json');
+      body = JSON.stringify(data);
+    }
+
+    const request = new Request(url, {
+      method,
+      headers,
+      signal: opts.signal,
+      body,
+    });
+
+    const response = await this.fetch(request);
+
+    if (!response.ok) {
+      throw new HTTPError(response);
+    }
+
+    return response;
+  }
+
+}
\ No newline at end of file
diff --git a/src/api/hooks/accounts/useFollow.ts b/src/api/hooks/accounts/useFollow.ts
index a3d43905a..25be4b3bc 100644
--- a/src/api/hooks/accounts/useFollow.ts
+++ b/src/api/hooks/accounts/useFollow.ts
@@ -55,7 +55,7 @@ function useFollow() {
     followEffect(accountId);
 
     try {
-      const response = await api.post(`/api/v1/accounts/${accountId}/follow`, { json: options });
+      const response = await api.post(`/api/v1/accounts/${accountId}/follow`, options);
       const result = relationshipSchema.safeParse(await response.json());
       if (result.success) {
         dispatch(importEntities([result.data], Entities.RELATIONSHIPS));
diff --git a/src/api/hooks/admin/useAnnouncements.ts b/src/api/hooks/admin/useAnnouncements.ts
index 706dd1595..2fa3f0029 100644
--- a/src/api/hooks/admin/useAnnouncements.ts
+++ b/src/api/hooks/admin/useAnnouncements.ts
@@ -22,7 +22,8 @@ const useAnnouncements = () => {
   const userAnnouncements = useUserAnnouncements();
 
   const getAnnouncements = async () => {
-    const data = await api.get<AdminAnnouncement[]>('/api/v1/pleroma/admin/announcements').json();
+    const response = await api.get('/api/v1/pleroma/admin/announcements');
+    const data: AdminAnnouncement[] = await response.json();
 
     const normalizedData = data.map((announcement) => adminAnnouncementSchema.parse(announcement));
     return normalizedData;
@@ -38,7 +39,7 @@ const useAnnouncements = () => {
     mutate: createAnnouncement,
     isPending: isCreating,
   } = useMutation({
-    mutationFn: (params: CreateAnnouncementParams) => api.post('/api/v1/pleroma/admin/announcements', { json: params }),
+    mutationFn: (params: CreateAnnouncementParams) => api.post('/api/v1/pleroma/admin/announcements', params),
     retry: false,
     onSuccess: async (response: Response) => {
       const data = await response.json();
@@ -53,7 +54,7 @@ const useAnnouncements = () => {
     mutate: updateAnnouncement,
     isPending: isUpdating,
   } = useMutation({
-    mutationFn: ({ id, ...params }: UpdateAnnouncementParams) => api.patch(`/api/v1/pleroma/admin/announcements/${id}`, { json: params }),
+    mutationFn: ({ id, ...params }: UpdateAnnouncementParams) => api.patch(`/api/v1/pleroma/admin/announcements/${id}`, params),
     retry: false,
     onSuccess: async (response: Response) => {
       const data = await response.json();
diff --git a/src/api/hooks/admin/useCreateDomain.ts b/src/api/hooks/admin/useCreateDomain.ts
index a4b86fba0..8cbb4ae85 100644
--- a/src/api/hooks/admin/useCreateDomain.ts
+++ b/src/api/hooks/admin/useCreateDomain.ts
@@ -11,8 +11,11 @@ interface CreateDomainParams {
 const useCreateDomain = () => {
   const api = useApi();
 
-  const { createEntity, ...rest } = useCreateEntity([Entities.DOMAINS], (params: CreateDomainParams) =>
-    api.post('/api/v1/pleroma/admin/domains', { json: params }), { schema: domainSchema });
+  const { createEntity, ...rest } = useCreateEntity(
+    [Entities.DOMAINS],
+    (params: CreateDomainParams) => api.post('/api/v1/pleroma/admin/domains', params),
+    { schema: domainSchema },
+  );
 
   return {
     createDomain: createEntity,
diff --git a/src/api/hooks/admin/useDomains.ts b/src/api/hooks/admin/useDomains.ts
index 28fdd8a98..ff052b7ac 100644
--- a/src/api/hooks/admin/useDomains.ts
+++ b/src/api/hooks/admin/useDomains.ts
@@ -18,7 +18,8 @@ const useDomains = () => {
   const api = useApi();
 
   const getDomains = async () => {
-    const data = await api.get<Domain[]>('/api/v1/pleroma/admin/domains').json();
+    const response = await api.get('/api/v1/pleroma/admin/domains');
+    const data: Domain[] = await response.json();
 
     const normalizedData = data.map((domain) => domainSchema.parse(domain));
     return normalizedData;
@@ -34,7 +35,7 @@ const useDomains = () => {
     mutate: createDomain,
     isPending: isCreating,
   } = useMutation({
-    mutationFn: (params: CreateDomainParams) => api.post('/api/v1/pleroma/admin/domains', { json: params }),
+    mutationFn: (params: CreateDomainParams) => api.post('/api/v1/pleroma/admin/domains', params),
     retry: false,
     onSuccess: async (response: Response) => {
       const data = await response.json();
@@ -48,7 +49,7 @@ const useDomains = () => {
     mutate: updateDomain,
     isPending: isUpdating,
   } = useMutation({
-    mutationFn: ({ id, ...params }: UpdateDomainParams) => api.patch(`/api/v1/pleroma/admin/domains/${id}`, { json: params }),
+    mutationFn: ({ id, ...params }: UpdateDomainParams) => api.patch(`/api/v1/pleroma/admin/domains/${id}`, params),
     retry: false,
     onSuccess: async (response: Response) => {
       const data = await response.json();
diff --git a/src/api/hooks/admin/useManageZapSplit.ts b/src/api/hooks/admin/useManageZapSplit.ts
index 615c818ed..e0e0344ce 100644
--- a/src/api/hooks/admin/useManageZapSplit.ts
+++ b/src/api/hooks/admin/useManageZapSplit.ts
@@ -32,7 +32,8 @@ export const useManageZapSplit = () => {
   */
   const fetchZapSplitData = async () => {
     try {
-      const data = await api.get<ZapSplitData[]>('/api/v1/ditto/zap_splits').json();
+      const response = await api.get('/api/v1/ditto/zap_splits');
+      const data: ZapSplitData[] = await response.json();
       if (data) {
         const normalizedData = data.map((dataSplit) => baseZapAccountSchema.parse(dataSplit));
         setFormattedData(normalizedData);
@@ -132,9 +133,7 @@ export const useManageZapSplit = () => {
   * @param accountId - The ID of the account to be removed.
   */
   const removeAccount = async (accountId: string) => {
-    const isToDelete = [(formattedData.find(item => item.account.id === accountId))?.account.id];
-
-    await api.delete('/api/v1/admin/ditto/zap_splits/', { json: isToDelete });
+    await api.request('DELETE', '/api/v1/admin/ditto/zap_splits', [accountId]);
     await fetchZapSplitData();
   };
 
diff --git a/src/api/hooks/admin/useModerationLog.ts b/src/api/hooks/admin/useModerationLog.ts
index 5c38a66eb..2153deab8 100644
--- a/src/api/hooks/admin/useModerationLog.ts
+++ b/src/api/hooks/admin/useModerationLog.ts
@@ -14,7 +14,8 @@ const useModerationLog = () => {
   const api = useApi();
 
   const getModerationLog = async (page: number): Promise<ModerationLogResult> => {
-    const data = await api.get<ModerationLogResult>('/api/v1/pleroma/admin/moderation_log', { searchParams: { page } }).json();
+    const response = await api.get('/api/v1/pleroma/admin/moderation_log', { searchParams: { page } });
+    const data: ModerationLogResult = await response.json();
 
     const normalizedData = data.items.map((domain) => moderationLogEntrySchema.parse(domain));
 
diff --git a/src/api/hooks/admin/useRelays.ts b/src/api/hooks/admin/useRelays.ts
index ff6383e48..d27b6d043 100644
--- a/src/api/hooks/admin/useRelays.ts
+++ b/src/api/hooks/admin/useRelays.ts
@@ -8,9 +8,10 @@ const useRelays = () => {
   const api = useApi();
 
   const getRelays = async () => {
-    const data = await api.get<{ relays: Relay[] }>('/api/v1/pleroma/admin/relay').json();
+    const response = await api.get('/api/v1/pleroma/admin/relay');
+    const relays: Relay[] = await response.json();
 
-    const normalizedData = data.relays?.map((relay) => relaySchema.parse(relay));
+    const normalizedData = relays?.map((relay) => relaySchema.parse(relay));
     return normalizedData;
   };
 
@@ -24,7 +25,7 @@ const useRelays = () => {
     mutate: followRelay,
     isPending: isPendingFollow,
   } = useMutation({
-    mutationFn: (relayUrl: string) => api.post('/api/v1/pleroma/admin/relays', { json: { relay_url: relayUrl } }),
+    mutationFn: (relayUrl: string) => api.post('/api/v1/pleroma/admin/relays', { relay_url: relayUrl }),
     retry: false,
     onSuccess: async (response: Response) => {
       const data = await response.json();
@@ -38,9 +39,9 @@ const useRelays = () => {
     mutate: unfollowRelay,
     isPending: isPendingUnfollow,
   } = useMutation({
-    mutationFn: (relayUrl: string) => api.delete('/api/v1/pleroma/admin/relays', {
-      json: { relay_url: relayUrl },
-    }),
+    mutationFn: async (relayUrl: string) => {
+      await api.request('DELETE', '/api/v1/pleroma/admin/relays', { relay_url: relayUrl });
+    },
     retry: false,
     onSuccess: (_, relayUrl) =>
       queryClient.setQueryData(['admin', 'relays'], (prevResult: ReadonlyArray<Relay>) =>
diff --git a/src/api/hooks/admin/useRules.ts b/src/api/hooks/admin/useRules.ts
index b1fbd6154..8fed91fa0 100644
--- a/src/api/hooks/admin/useRules.ts
+++ b/src/api/hooks/admin/useRules.ts
@@ -21,7 +21,8 @@ const useRules = () => {
   const api = useApi();
 
   const getRules = async () => {
-    const data = await api.get<AdminRule[]>('/api/v1/pleroma/admin/rules').json();
+    const response = await api.get('/api/v1/pleroma/admin/rules');
+    const data: AdminRule[] = await response.json();
 
     const normalizedData = data.map((rule) => adminRuleSchema.parse(rule));
     return normalizedData;
@@ -37,7 +38,7 @@ const useRules = () => {
     mutate: createRule,
     isPending: isCreating,
   } = useMutation({
-    mutationFn: (params: CreateRuleParams) => api.post('/api/v1/pleroma/admin/rules', { json: params }),
+    mutationFn: (params: CreateRuleParams) => api.post('/api/v1/pleroma/admin/rules', params),
     retry: false,
     onSuccess: async (response: Response) => {
       const data = await response.json();
@@ -51,7 +52,7 @@ const useRules = () => {
     mutate: updateRule,
     isPending: isUpdating,
   } = useMutation({
-    mutationFn: ({ id, ...params }: UpdateRuleParams) => api.patch(`/api/v1/pleroma/admin/rules/${id}`, { json: params }),
+    mutationFn: ({ id, ...params }: UpdateRuleParams) => api.patch(`/api/v1/pleroma/admin/rules/${id}`, params),
     retry: false,
     onSuccess: async (response: Response) => {
       const data = await response.json();
diff --git a/src/api/hooks/admin/useSuggest.ts b/src/api/hooks/admin/useSuggest.ts
index 82aa3adcf..b20bc5308 100644
--- a/src/api/hooks/admin/useSuggest.ts
+++ b/src/api/hooks/admin/useSuggest.ts
@@ -29,7 +29,7 @@ function useSuggest() {
     const accts = accountIdsToAccts(getState(), accountIds);
     suggestEffect(accountIds, true);
     try {
-      await api.patch('/api/v1/pleroma/admin/users/suggest', { json: { nicknames: accts } });
+      await api.patch('/api/v1/pleroma/admin/users/suggest', { nicknames: accts });
       callbacks?.onSuccess?.();
     } catch (e) {
       callbacks?.onError?.(e);
@@ -41,7 +41,7 @@ function useSuggest() {
     const accts = accountIdsToAccts(getState(), accountIds);
     suggestEffect(accountIds, false);
     try {
-      await api.patch('/api/v1/pleroma/admin/users/unsuggest', { json: { nicknames: accts } });
+      await api.patch('/api/v1/pleroma/admin/users/unsuggest', { nicknames: accts });
       callbacks?.onSuccess?.();
     } catch (e) {
       callbacks?.onError?.(e);
diff --git a/src/api/hooks/admin/useUpdateDomain.ts b/src/api/hooks/admin/useUpdateDomain.ts
index f278441fb..8488d6916 100644
--- a/src/api/hooks/admin/useUpdateDomain.ts
+++ b/src/api/hooks/admin/useUpdateDomain.ts
@@ -8,8 +8,11 @@ import type { CreateDomainParams } from './useCreateDomain';
 const useUpdateDomain = (id: string) => {
   const api = useApi();
 
-  const { createEntity, ...rest } = useCreateEntity([Entities.DOMAINS], (params: Omit<CreateDomainParams, 'domain'>) =>
-    api.patch(`/api/v1/pleroma/admin/domains/${id}`, { json: params }), { schema: domainSchema });
+  const { createEntity, ...rest } = useCreateEntity(
+    [Entities.DOMAINS],
+    (params: Omit<CreateDomainParams, 'domain'>) => api.patch(`/api/v1/pleroma/admin/domains/${id}`, params),
+    { schema: domainSchema },
+  );
 
   return {
     updateDomain: createEntity,
diff --git a/src/api/hooks/admin/useVerify.ts b/src/api/hooks/admin/useVerify.ts
index ed4141082..9312d609e 100644
--- a/src/api/hooks/admin/useVerify.ts
+++ b/src/api/hooks/admin/useVerify.ts
@@ -34,7 +34,7 @@ function useVerify() {
     const accts = accountIdsToAccts(getState(), accountIds);
     verifyEffect(accountIds, true);
     try {
-      await api.put('/api/v1/pleroma/admin/users/tag', { json: { nicknames: accts, tags: ['verified'] } });
+      await api.put('/api/v1/pleroma/admin/users/tag', { nicknames: accts, tags: ['verified'] });
       callbacks?.onSuccess?.();
     } catch (e) {
       callbacks?.onError?.(e);
@@ -46,7 +46,7 @@ function useVerify() {
     const accts = accountIdsToAccts(getState(), accountIds);
     verifyEffect(accountIds, false);
     try {
-      await api.delete('/api/v1/pleroma/admin/users/tag', { json: { nicknames: accts, tags: ['verified'] } });
+      await api.request('DELETE', '/api/v1/pleroma/admin/users/tag', { nicknames: accts, tags: ['verified'] });
       callbacks?.onSuccess?.();
     } catch (e) {
       callbacks?.onError?.(e);
diff --git a/src/api/hooks/announcements/useAnnouncements.ts b/src/api/hooks/announcements/useAnnouncements.ts
index d5b24dec7..af4e36a2c 100644
--- a/src/api/hooks/announcements/useAnnouncements.ts
+++ b/src/api/hooks/announcements/useAnnouncements.ts
@@ -24,7 +24,8 @@ const useAnnouncements = () => {
   const api = useApi();
 
   const getAnnouncements = async () => {
-    const data = await api.get<Announcement[]>('/api/v1/announcements').json();
+    const response = await api.get('/api/v1/announcements');
+    const data: Announcement[] = await response.json();
 
     const normalizedData = data?.map((announcement) => announcementSchema.parse(announcement));
     return normalizedData;
@@ -39,8 +40,10 @@ const useAnnouncements = () => {
   const {
     mutate: addReaction,
   } = useMutation({
-    mutationFn: ({ announcementId, name }: { announcementId: string; name: string }) =>
-      api.put<Announcement>(`/api/v1/announcements/${announcementId}/reactions/${name}`),
+    mutationFn: async ({ announcementId, name }: { announcementId: string; name: string }): Promise<Announcement> => {
+      const response = await api.put(`/api/v1/announcements/${announcementId}/reactions/${name}`);
+      return response.json();
+    },
     retry: false,
     onMutate: ({ announcementId: id, name }) => {
       queryClient.setQueryData(['announcements'], (prevResult: Announcement[]) =>
@@ -63,8 +66,10 @@ const useAnnouncements = () => {
   const {
     mutate: removeReaction,
   } = useMutation({
-    mutationFn: ({ announcementId, name }: { announcementId: string; name: string }) =>
-      api.delete<Announcement>(`/api/v1/announcements/${announcementId}/reactions/${name}`),
+    mutationFn: async ({ announcementId, name }: { announcementId: string; name: string }): Promise<Announcement> => {
+      const response = await api.delete(`/api/v1/announcements/${announcementId}/reactions/${name}`);
+      return response.json();
+    },
     retry: false,
     onMutate: ({ announcementId: id, name }) => {
       queryClient.setQueryData(['announcements'], (prevResult: Announcement[]) =>
diff --git a/src/api/hooks/captcha/useCaptcha.ts b/src/api/hooks/captcha/useCaptcha.ts
index 8085376db..92f3115f7 100644
--- a/src/api/hooks/captcha/useCaptcha.ts
+++ b/src/api/hooks/captcha/useCaptcha.ts
@@ -35,14 +35,11 @@ const useCaptcha = () => {
     try {
       const topI = getRandomNumber(0, (356 - 61));
       const leftI = getRandomNumber(0, (330 - 61));
-      const { data } = await api.get('/api/v1/ditto/captcha');
-      if (data) {
-        const normalizedData = captchaSchema.parse(data);
-        setCaptcha(normalizedData);
-        setYPosition(topI);
-        setXPosition(leftI);
-      }
-
+      const response = await api.get('/api/v1/ditto/captcha');
+      const data = captchaSchema.parse(await response.json());
+      setCaptcha(data);
+      setYPosition(topI);
+      setXPosition(leftI);
     } catch (error) {
       toast.error('Error loading captcha:');
     }
diff --git a/src/api/hooks/groups/useCreateGroup.ts b/src/api/hooks/groups/useCreateGroup.ts
index 1d3a18107..e80417856 100644
--- a/src/api/hooks/groups/useCreateGroup.ts
+++ b/src/api/hooks/groups/useCreateGroup.ts
@@ -17,8 +17,7 @@ function useCreateGroup() {
   const api = useApi();
 
   const { createEntity, ...rest } = useCreateEntity([Entities.GROUPS, 'search', ''], (params: CreateGroupParams) => {
-    return api.post('/api/v1/groups', {
-      json: params,
+    return api.post('/api/v1/groups', params, {
       headers: {
         'Content-Type': 'multipart/form-data',
       },
diff --git a/src/api/hooks/groups/useGroupValidation.ts b/src/api/hooks/groups/useGroupValidation.ts
index f0e69ef6c..1b008b0b1 100644
--- a/src/api/hooks/groups/useGroupValidation.ts
+++ b/src/api/hooks/groups/useGroupValidation.ts
@@ -1,6 +1,6 @@
 import { useQuery } from '@tanstack/react-query';
-import { HTTPError } from 'ky';
 
+import { HTTPError } from 'soapbox/api/HTTPError';
 import { useApi } from 'soapbox/hooks/useApi';
 import { useFeatures } from 'soapbox/hooks/useFeatures';
 
@@ -19,9 +19,8 @@ function useGroupValidation(name: string = '') {
 
   const getValidation = async () => {
     try {
-      return api.get<Validation>('/api/v1/groups/validate', {
-        searchParams: { name },
-      }).json();
+      const response = await api.get('/api/v1/groups/validate', { searchParams: { name } });
+      return response.json();
     } catch (e) {
       if (e instanceof HTTPError && e.response.status === 422) {
         return e.response.json();
diff --git a/src/api/hooks/groups/useUpdateGroup.ts b/src/api/hooks/groups/useUpdateGroup.ts
index ef6539167..129849514 100644
--- a/src/api/hooks/groups/useUpdateGroup.ts
+++ b/src/api/hooks/groups/useUpdateGroup.ts
@@ -17,8 +17,7 @@ function useUpdateGroup(groupId: string) {
   const api = useApi();
 
   const { createEntity, ...rest } = useCreateEntity([Entities.GROUPS], (params: UpdateGroupParams) => {
-    return api.put(`/api/v1/groups/${groupId}`, {
-      json: params,
+    return api.put(`/api/v1/groups/${groupId}`, params, {
       headers: {
         'Content-Type': 'multipart/form-data',
       },
diff --git a/src/api/hooks/statuses/useCreateBookmarkFolder.ts b/src/api/hooks/statuses/useCreateBookmarkFolder.ts
index 41ae6317d..ded24ff97 100644
--- a/src/api/hooks/statuses/useCreateBookmarkFolder.ts
+++ b/src/api/hooks/statuses/useCreateBookmarkFolder.ts
@@ -14,8 +14,7 @@ function useCreateBookmarkFolder() {
   const { createEntity, ...rest } = useCreateEntity(
     [Entities.BOOKMARK_FOLDERS],
     (params: CreateBookmarkFolderParams) =>
-      api.post('/api/v1/pleroma/bookmark_folders', {
-        json: params,
+      api.post('/api/v1/pleroma/bookmark_folders', params, {
         headers: {
           'Content-Type': 'multipart/form-data',
         },
diff --git a/src/api/hooks/statuses/useUpdateBookmarkFolder.ts b/src/api/hooks/statuses/useUpdateBookmarkFolder.ts
index 109ef2952..2e023b04b 100644
--- a/src/api/hooks/statuses/useUpdateBookmarkFolder.ts
+++ b/src/api/hooks/statuses/useUpdateBookmarkFolder.ts
@@ -13,13 +13,7 @@ function useUpdateBookmarkFolder(folderId: string) {
 
   const { createEntity, ...rest } = useCreateEntity(
     [Entities.BOOKMARK_FOLDERS],
-    (params: UpdateBookmarkFolderParams) =>
-      api.patch(`/api/v1/pleroma/bookmark_folders/${folderId}`, {
-        json: params,
-        headers: {
-          'Content-Type': 'multipart/form-data',
-        },
-      }),
+    (params: UpdateBookmarkFolderParams) => api.patch(`/api/v1/pleroma/bookmark_folders/${folderId}`, params),
     { schema: bookmarkFolderSchema },
   );
 
diff --git a/src/api/hooks/zap-split/useZapSplit.ts b/src/api/hooks/zap-split/useZapSplit.ts
index 5109fefa1..f77b79c71 100644
--- a/src/api/hooks/zap-split/useZapSplit.ts
+++ b/src/api/hooks/zap-split/useZapSplit.ts
@@ -30,13 +30,12 @@ const useZapSplit = (status: StatusEntity | undefined, account: AccountEntity) =
   const [zapArrays, setZapArrays] = useState<ZapSplitData[]>([]);
   const [zapSplitData, setZapSplitData] = useState<{splitAmount: number; receiveAmount: number; splitValues: SplitValue[]}>({ splitAmount: Number(), receiveAmount: Number(), splitValues: [] });
 
-  const fetchZapSplit = (id: string) => {
-    return api.get<ZapSplitData[]>(`/api/v1/ditto/${id}/zap_splits`);
-  };
+  const fetchZapSplit = (id: string) => api.get(`/api/v1/ditto/${id}/zap_splits`);
 
   const loadZapSplitData = async () => {
     if (status) {
-      const data = await fetchZapSplit(status.id).json();
+      const response = await fetchZapSplit(status.id);
+      const data: ZapSplitData[] = await response.json();
       if (data) {
         const normalizedData = data.map((dataSplit) => baseZapAccountSchema.parse(dataSplit));
         setZapArrays(normalizedData);
diff --git a/src/entity-store/hooks/useCreateEntity.ts b/src/entity-store/hooks/useCreateEntity.ts
index 52abce119..77eea017c 100644
--- a/src/entity-store/hooks/useCreateEntity.ts
+++ b/src/entity-store/hooks/useCreateEntity.ts
@@ -1,6 +1,6 @@
-import { HTTPError } from 'ky';
 import { z } from 'zod';
 
+import { HTTPError } from 'soapbox/api/HTTPError';
 import { useAppDispatch } from 'soapbox/hooks/useAppDispatch';
 import { useLoading } from 'soapbox/hooks/useLoading';
 
diff --git a/src/entity-store/hooks/useEntity.ts b/src/entity-store/hooks/useEntity.ts
index 55c7821d2..2e6734f9c 100644
--- a/src/entity-store/hooks/useEntity.ts
+++ b/src/entity-store/hooks/useEntity.ts
@@ -1,7 +1,7 @@
-import { HTTPError } from 'ky';
 import { useEffect, useState } from 'react';
 import z from 'zod';
 
+import { HTTPError } from 'soapbox/api/HTTPError';
 import { useAppDispatch } from 'soapbox/hooks/useAppDispatch';
 import { useAppSelector } from 'soapbox/hooks/useAppSelector';
 import { useLoading } from 'soapbox/hooks/useLoading';
@@ -68,8 +68,8 @@ function useEntity<TEntity extends Entity>(
     isLoading,
     isLoaded,
     error,
-    isUnauthorized: error instanceof HTTPError && error.response?.status === 401,
-    isForbidden: error instanceof HTTPError && error.response?.status === 403,
+    isUnauthorized: error instanceof HTTPError && error.response.status === 401,
+    isForbidden: error instanceof HTTPError && error.response.status === 403,
   };
 }
 
diff --git a/src/entity-store/hooks/useEntityActions.ts b/src/entity-store/hooks/useEntityActions.ts
index 48f837c17..b038946f3 100644
--- a/src/entity-store/hooks/useEntityActions.ts
+++ b/src/entity-store/hooks/useEntityActions.ts
@@ -29,10 +29,10 @@ function useEntityActions<TEntity extends Entity = Entity, Data = any>(
     useDeleteEntity(entityType, (entityId) => api.delete(endpoints.delete!.replace(/:id/g, entityId)));
 
   const { createEntity, isSubmitting: createSubmitting } =
-    useCreateEntity<TEntity, Data>(path, (data) => api.post(endpoints.post!, { json: data }), opts);
+    useCreateEntity<TEntity, Data>(path, (data) => api.post(endpoints.post!, data), opts);
 
   const { createEntity: updateEntity, isSubmitting: updateSubmitting } =
-    useCreateEntity<TEntity, Data>(path, (data) => api.patch(endpoints.patch!, { json: data }), opts);
+    useCreateEntity<TEntity, Data>(path, (data) => api.patch(endpoints.patch!, data), opts);
 
   return {
     createEntity,
diff --git a/src/entity-store/hooks/useEntityLookup.ts b/src/entity-store/hooks/useEntityLookup.ts
index dc0c5d791..da3553281 100644
--- a/src/entity-store/hooks/useEntityLookup.ts
+++ b/src/entity-store/hooks/useEntityLookup.ts
@@ -1,7 +1,7 @@
-import { HTTPError } from 'ky';
 import { useEffect, useState } from 'react';
 import { z } from 'zod';
 
+import { HTTPError } from 'soapbox/api/HTTPError';
 import { useAppDispatch } from 'soapbox/hooks/useAppDispatch';
 import { useAppSelector } from 'soapbox/hooks/useAppSelector';
 import { useLoading } from 'soapbox/hooks/useLoading';
@@ -58,8 +58,8 @@ function useEntityLookup<TEntity extends Entity>(
     fetchEntity,
     isFetching,
     isLoading,
-    isUnauthorized: error instanceof HTTPError && error.response?.status === 401,
-    isForbidden: error instanceof HTTPError && error.response?.status === 403,
+    isUnauthorized: error instanceof HTTPError && error.response.status === 401,
+    isForbidden: error instanceof HTTPError && error.response.status === 403,
   };
 }
 
diff --git a/src/features/admin/hooks/useAdminNostrRelays.ts b/src/features/admin/hooks/useAdminNostrRelays.ts
index 8a4970727..576f12351 100644
--- a/src/features/admin/hooks/useAdminNostrRelays.ts
+++ b/src/features/admin/hooks/useAdminNostrRelays.ts
@@ -14,7 +14,8 @@ export function useAdminNostrRelays() {
   return useQuery({
     queryKey: ['NostrRelay'],
     queryFn: async () => {
-      const data = await api.get('/api/v1/admin/ditto/relays').json();
+      const response = await api.get('/api/v1/admin/ditto/relays');
+      const data = await response.json();
       return relayEntitySchema.array().parse(data);
     },
   });
diff --git a/src/features/admin/nostr-relays.tsx b/src/features/admin/nostr-relays.tsx
index e97fa4d3b..40c7d719e 100644
--- a/src/features/admin/nostr-relays.tsx
+++ b/src/features/admin/nostr-relays.tsx
@@ -20,7 +20,7 @@ const AdminNostrRelays: React.FC = () => {
   const [relays, setRelays] = useState<RelayData[]>(result.data ?? []);
 
   const mutation = useMutation({
-    mutationFn: async () => api.put('/api/v1/admin/ditto/relays', { json: relays }),
+    mutationFn: async () => api.put('/api/v1/admin/ditto/relays', relays),
   });
 
   const handleSubmit = () => {
diff --git a/src/features/edit-identity/index.tsx b/src/features/edit-identity/index.tsx
index 814c526c1..4c8b0ff60 100644
--- a/src/features/edit-identity/index.tsx
+++ b/src/features/edit-identity/index.tsx
@@ -187,7 +187,7 @@ function useRequestName() {
   const api = useApi();
 
   return useMutation({
-    mutationFn: (data: NameRequestData) => api.post('/api/v1/ditto/names', { json: data }),
+    mutationFn: (data: NameRequestData) => api.post('/api/v1/ditto/names', data),
   });
 }
 
@@ -197,7 +197,8 @@ function useNames() {
   return useQuery({
     queryKey: ['names', 'approved'],
     queryFn: async () => {
-      const data = await api.get('/api/v1/ditto/names?approved=true').json();
+      const response = await api.get('/api/v1/ditto/names?approved=true');
+      const data = await response.json();
       return adminAccountSchema.array().parse(data);
     },
     placeholderData: [],
@@ -210,7 +211,8 @@ function usePendingNames() {
   return useQuery({
     queryKey: ['names', 'pending'],
     queryFn: async () => {
-      const data = await api.get('/api/v1/ditto/names?approved=false').json();
+      const response = await api.get('/api/v1/ditto/names?approved=false');
+      const data = await response.json();
       return adminAccountSchema.array().parse(data);
     },
     placeholderData: [],
diff --git a/src/features/ui/components/modals/manage-group-modal/create-group-modal.tsx b/src/features/ui/components/modals/manage-group-modal/create-group-modal.tsx
index 295ef612b..bef60fda4 100644
--- a/src/features/ui/components/modals/manage-group-modal/create-group-modal.tsx
+++ b/src/features/ui/components/modals/manage-group-modal/create-group-modal.tsx
@@ -1,8 +1,8 @@
-import { HTTPError } from 'ky';
 import React, { useMemo, useState } from 'react';
 import { defineMessages, FormattedMessage, useIntl } from 'react-intl';
 import { z } from 'zod';
 
+import { HTTPError } from 'soapbox/api/HTTPError';
 import { useCreateGroup, useGroupValidation, type CreateGroupParams } from 'soapbox/api/hooks';
 import { Modal, Stack } from 'soapbox/components/ui';
 import { useDebounce } from 'soapbox/hooks';
@@ -72,9 +72,13 @@ const CreateGroupModal: React.FC<ICreateGroupModal> = ({ onClose }) => {
           },
           async onError(error) {
             if (error instanceof HTTPError) {
-              const msg = z.object({ error: z.string() }).safeParse(await error.response.json());
-              if (msg.success) {
-                toast.error(msg.data.error);
+              try {
+                const data = await error.response.json();
+                const msg = z.object({ error: z.string() }).parse(data);
+                toast.error(msg.error);
+
+              } catch {
+                // Do nothing
               }
             }
           },
diff --git a/src/hooks/useApi.ts b/src/hooks/useApi.ts
index 5117bffb6..5a4babb02 100644
--- a/src/hooks/useApi.ts
+++ b/src/hooks/useApi.ts
@@ -1,20 +1,12 @@
-import ky, { KyInstance } from 'ky';
+import { MastodonClient } from 'soapbox/api/MastodonClient';
 
 import { useAppSelector } from './useAppSelector';
 import { useOwnAccount } from './useOwnAccount';
 
-export function useApi(): KyInstance {
+export function useApi(): MastodonClient {
   const { account } = useOwnAccount();
   const accessToken = useAppSelector((state) => account ? state.auth.users.get(account.url)?.access_token : undefined);
+  const baseUrl = account ? new URL(account.url).origin : location.origin;
 
-  const headers: Record<string, string> = {};
-
-  if (accessToken) {
-    headers.Authorization = `Bearer ${accessToken}`;
-  }
-
-  return ky.create({
-    prefixUrl: account ? new URL(account.url).origin : undefined,
-    headers,
-  });
+  return new MastodonClient(baseUrl, accessToken);
 }
\ No newline at end of file
diff --git a/src/queries/accounts.ts b/src/queries/accounts.ts
index 77e40fb9f..762649e4c 100644
--- a/src/queries/accounts.ts
+++ b/src/queries/accounts.ts
@@ -40,7 +40,7 @@ const useUpdateCredentials = () => {
   const dispatch = useAppDispatch();
 
   return useMutation({
-    mutationFn: (data: UpdateCredentialsData) => api.patch('/api/v1/accounts/update_credentials', { json: data }),
+    mutationFn: (data: UpdateCredentialsData) => api.patch('/api/v1/accounts/update_credentials', data),
     onMutate(variables) {
       const cachedAccount = account;
       dispatch(patchMeSuccess({ ...account, ...variables }));
diff --git a/src/queries/chats.ts b/src/queries/chats.ts
index f83171523..9eb1f10ee 100644
--- a/src/queries/chats.ts
+++ b/src/queries/chats.ts
@@ -84,7 +84,7 @@ const useChatMessages = (chat: IChat) => {
   const getChatMessages = async (chatId: string, pageParam?: any): Promise<PaginatedResult<ChatMessage>> => {
     const nextPageLink = pageParam?.link;
     const uri = nextPageLink || `/api/v1/pleroma/chats/${chatId}/messages`;
-    const response = await api.get<any[]>(uri);
+    const response = await api.get(uri);
     const data = await response.json();
 
     const { next } = getPagination(response);
@@ -133,14 +133,12 @@ const useChats = (search?: string) => {
     const endpoint = features.chatsV2 ? '/api/v2/pleroma/chats' : '/api/v1/pleroma/chats';
     const nextPageLink = pageParam?.link;
     const uri = nextPageLink || endpoint;
-    const response = await api.get<IChat[]>(uri, {
-      json: {
-        params: search ? {
-          search,
-        } : undefined,
-      },
+    const response = await api.get(uri, {
+      searchParams: search ? {
+        search,
+      } : undefined,
     });
-    const data = await response.json();
+    const data: IChat[] = await response.json();
 
     const { next } = getPagination(response);
     const hasMore = !!next;
@@ -180,7 +178,7 @@ const useChats = (search?: string) => {
     data,
   };
 
-  const getOrCreateChatByAccountId = (accountId: string) => api.post<IChat>(`/api/v1/pleroma/chats/by-account-id/${accountId}`);
+  const getOrCreateChatByAccountId = (accountId: string) => api.post(`/api/v1/pleroma/chats/by-account-id/${accountId}`);
 
   return { chatsQuery, getOrCreateChatByAccountId };
 };
@@ -192,7 +190,8 @@ const useChat = (chatId?: string) => {
 
   const getChat = async () => {
     if (chatId) {
-      const data = await api.get<IChat>(`/api/v1/pleroma/chats/${chatId}`).json();
+      const response = await api.get(`/api/v1/pleroma/chats/${chatId}`);
+      const data: IChat = await response.json();
 
       fetchRelationships.mutate({ accountIds: [data.account.id] });
       dispatch(importFetchedAccount(data.account));
@@ -219,7 +218,7 @@ const useChatActions = (chatId: string) => {
   const { chat, changeScreen } = useChatContext();
 
   const markChatAsRead = async (lastReadId: string) => {
-    return api.post<IChat>(`/api/v1/pleroma/chats/${chatId}/read`, { json: { last_read_id: lastReadId } })
+    return api.post(`/api/v1/pleroma/chats/${chatId}/read`, { last_read_id: lastReadId })
       .then(async (response) => {
         const data = await response.json();
         updatePageItem(ChatKeys.chatSearch(), data, (o, n) => o.id === n.id);
@@ -242,14 +241,13 @@ const useChatActions = (chatId: string) => {
   };
 
   const createChatMessage = useMutation({
-    mutationFn: ({ chatId, content, mediaIds }: { chatId: string; content: string; mediaIds?: string[] }) => {
-      return api.post<ChatMessage>(`/api/v1/pleroma/chats/${chatId}/messages`, {
-        json: {
-          content,
-          media_id: (mediaIds && mediaIds.length === 1) ? mediaIds[0] : undefined, // Pleroma backwards-compat
-          media_ids: mediaIds,
-        },
+    mutationFn: async ({ chatId, content, mediaIds }: { chatId: string; content: string; mediaIds?: string[] }) => {
+      const response = await api.post(`/api/v1/pleroma/chats/${chatId}/messages`, {
+        content,
+        media_id: (mediaIds && mediaIds.length === 1) ? mediaIds[0] : undefined, // Pleroma backwards-compat
+        media_ids: mediaIds,
       });
+      return response.json();
     },
     retry: false,
     onMutate: async (variables) => {
@@ -310,7 +308,7 @@ const useChatActions = (chatId: string) => {
   });
 
   const updateChat = useMutation({
-    mutationFn: (data: UpdateChatVariables) => api.patch<IChat>(`/api/v1/pleroma/chats/${chatId}`, { json: data }),
+    mutationFn: (data: UpdateChatVariables) => api.patch(`/api/v1/pleroma/chats/${chatId}`, data),
     onMutate: async (data) => {
       // Cancel any outgoing refetches (so they don't overwrite our optimistic update)
       await queryClient.cancelQueries({
@@ -340,10 +338,10 @@ const useChatActions = (chatId: string) => {
     },
   });
 
-  const deleteChatMessage = (chatMessageId: string) => api.delete<IChat>(`/api/v1/pleroma/chats/${chatId}/messages/${chatMessageId}`);
+  const deleteChatMessage = (chatMessageId: string) => api.delete(`/api/v1/pleroma/chats/${chatId}/messages/${chatMessageId}`);
 
   const acceptChat = useMutation({
-    mutationFn: () => api.post<IChat>(`/api/v1/pleroma/chats/${chatId}/accept`),
+    mutationFn: () => api.post(`/api/v1/pleroma/chats/${chatId}/accept`),
     async onSuccess(response) {
       const data = await response.json();
       changeScreen(ChatWidgetScreens.CHAT, data.id);
@@ -354,7 +352,7 @@ const useChatActions = (chatId: string) => {
   });
 
   const deleteChat = useMutation({
-    mutationFn: () => api.delete<IChat>(`/api/v1/pleroma/chats/${chatId}`),
+    mutationFn: () => api.delete(`/api/v1/pleroma/chats/${chatId}`),
     onSuccess() {
       changeScreen(ChatWidgetScreens.INBOX);
       queryClient.invalidateQueries({ queryKey: ChatKeys.chatMessages(chatId) });
diff --git a/src/queries/embed.ts b/src/queries/embed.ts
index 6bb739442..b2b8a6771 100644
--- a/src/queries/embed.ts
+++ b/src/queries/embed.ts
@@ -22,7 +22,8 @@ export default function useEmbed(url: string) {
   const api = useApi();
 
   const getEmbed = async (): Promise<Embed> => {
-    return api.get<Embed>('/api/oembed', { searchParams: { url } }).json();
+    const response = await api.get('/api/oembed', { searchParams: { url } });
+    return response.json();
   };
 
   return useQuery<Embed>({
diff --git a/src/queries/search.ts b/src/queries/search.ts
index e878466fa..e750ea780 100644
--- a/src/queries/search.ts
+++ b/src/queries/search.ts
@@ -12,13 +12,11 @@ export default function useAccountSearch(q: string) {
     const nextPageLink = pageParam?.link;
     const uri = nextPageLink || '/api/v1/accounts/search';
 
-    const response = await api.get<Account[]>(uri, {
-      json: {
-        params: {
-          q,
-          limit: 10,
-          followers: true,
-        },
+    const response = await api.get(uri, {
+      searchParams: {
+        q,
+        limit: 10,
+        followers: true,
       },
     });
     const data = await response.json();
diff --git a/src/queries/suggestions.ts b/src/queries/suggestions.ts
index a28724312..5874109be 100644
--- a/src/queries/suggestions.ts
+++ b/src/queries/suggestions.ts
@@ -32,11 +32,11 @@ const useSuggestions = () => {
 
   const getV2Suggestions = async (pageParam: PageParam): Promise<PaginatedResult<Result>> => {
     const endpoint = pageParam?.link || '/api/v2/suggestions';
-    const response = await api.get<Suggestion[]>(endpoint);
+    const response = await api.get(endpoint);
     const { next } = getPagination(response);
     const hasMore = !!next;
 
-    const data = await response.json();
+    const data: Suggestion[] = await response.json();
     const accounts = data.map(({ account }) => account);
     const accountIds = accounts.map((account) => account.id);
     dispatch(importFetchedAccounts(accounts));
@@ -91,11 +91,11 @@ function useOnboardingSuggestions() {
 
   const getV2Suggestions = async (pageParam: any): Promise<{ data: Suggestion[]; link: string | undefined; hasMore: boolean }> => {
     const link = pageParam?.link || '/api/v2/suggestions';
-    const response = await api.get<Suggestion[]>(link);
+    const response = await api.get(link);
     const { next } = getPagination(response);
     const hasMore = !!next;
 
-    const data = await response.json();
+    const data: Suggestion[] = await response.json();
     const accounts = data.map(({ account }) => account);
     const accountIds = accounts.map((account) => account.id);
     dispatch(importFetchedAccounts(accounts));
diff --git a/src/queries/trends.ts b/src/queries/trends.ts
index c6072325d..b34500db6 100644
--- a/src/queries/trends.ts
+++ b/src/queries/trends.ts
@@ -11,7 +11,8 @@ export default function useTrends() {
   const dispatch = useAppDispatch();
 
   const getTrends = async() => {
-    const data = await api.get<any[]>('/api/v1/trends').json();
+    const response = await api.get('/api/v1/trends');
+    const data: Tag[] = await response.json();
 
     dispatch(fetchTrendsSuccess(data));
 
diff --git a/yarn.lock b/yarn.lock
index 0d9f68792..2c6d98610 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5956,11 +5956,6 @@ known-css-properties@^0.29.0:
   resolved "https://registry.yarnpkg.com/known-css-properties/-/known-css-properties-0.29.0.tgz#e8ba024fb03886f23cb882e806929f32d814158f"
   integrity sha512-Ne7wqW7/9Cz54PDt4I3tcV+hAyat8ypyOGzYRJQfdxnnjeWsTxt1cy8pjvvKeI5kfXuyvULyeeAvwvvtAX3ayQ==
 
-ky@^1.7.2:
-  version "1.7.2"
-  resolved "https://registry.yarnpkg.com/ky/-/ky-1.7.2.tgz#b97d9b997ba51ff1e152f0815d3d27b86513eb1c"
-  integrity sha512-OzIvbHKKDpi60TnF9t7UUVAF1B4mcqc02z5PIvrm08Wyb+yOcz63GRvEuVxNT18a9E1SrNouhB4W2NNLeD7Ykg==
-
 kysely@^0.27.3:
   version "0.27.3"
   resolved "https://registry.yarnpkg.com/kysely/-/kysely-0.27.3.tgz#6cc6c757040500b43c4ac596cdbb12be400ee276"