diff --git a/src/utils/__tests__/bokante-mastodon.test.js b/src/utils/__tests__/bokante-mastodon.test.js
new file mode 100644
index 0000000..8bf735a
--- /dev/null
+++ b/src/utils/__tests__/bokante-mastodon.test.js
@@ -0,0 +1,73 @@
+import {describe, it, expect, vi, afterEach, beforeEach} from 'vitest';
+import {createStatus, getStatusContext} from '../bokante-mastodon.js';
+
+describe('bokante-mastodon', () => {
+  const originalFetch = global.fetch;
+  const originalEnv = {...process.env};
+
+  beforeEach(() => {
+    process.env.BOKANTE_INSTANCE_URL = 'https://bokante.o-k-i.net';
+    process.env.BOKANTE_ACCESS_TOKEN = 'test-token';
+  });
+
+  afterEach(() => {
+    global.fetch = originalFetch;
+    process.env = {...originalEnv};
+    vi.restoreAllMocks();
+  });
+
+  describe('createStatus', () => {
+    it('poste le statut avec le bon endpoint, jeton et corps', async () => {
+      global.fetch = vi.fn(async () => ({
+        ok: true,
+        json: async () => ({id: '112233', url: 'https://bokante.o-k-i.net/@paroles/112233'})
+      }));
+
+      const result = await createStatus('Nouvelle parole : "Titre"');
+
+      const [url, options] = global.fetch.mock.calls[0];
+      expect(url).toBe('https://bokante.o-k-i.net/api/v1/statuses');
+      expect(options.method).toBe('POST');
+      expect(options.headers.Authorization).toBe('Bearer test-token');
+      expect(JSON.parse(options.body)).toEqual({
+        status: 'Nouvelle parole : "Titre"',
+        visibility: 'public'
+      });
+      expect(result).toEqual({id: '112233', url: 'https://bokante.o-k-i.net/@paroles/112233'});
+    });
+
+    it('lève une erreur claire sur réponse HTTP non-ok', async () => {
+      global.fetch = vi.fn(async () => ({
+        ok: false,
+        status: 422,
+        text: async () => 'Validation Failed'
+      }));
+
+      await expect(createStatus('texte')).rejects.toThrow('Mastodon 422: Validation Failed');
+    });
+  });
+
+  describe('getStatusContext', () => {
+    it('récupère le contexte du statut avec le bon endpoint et jeton', async () => {
+      const context = {ancestors: [], descendants: [{id: '1', content: '<p>coucou</p>'}]};
+      global.fetch = vi.fn(async () => ({ok: true, json: async () => context}));
+
+      const result = await getStatusContext('112233');
+
+      const [url, options] = global.fetch.mock.calls[0];
+      expect(url).toBe('https://bokante.o-k-i.net/api/v1/statuses/112233/context');
+      expect(options.headers.Authorization).toBe('Bearer test-token');
+      expect(result).toEqual(context);
+    });
+
+    it('lève une erreur claire sur réponse HTTP non-ok', async () => {
+      global.fetch = vi.fn(async () => ({
+        ok: false,
+        status: 404,
+        text: async () => 'Record not found'
+      }));
+
+      await expect(getStatusContext('inconnu')).rejects.toThrow('Mastodon 404: Record not found');
+    });
+  });
+});
diff --git a/src/utils/bokante-mastodon.js b/src/utils/bokante-mastodon.js
new file mode 100644
index 0000000..362ef8f
--- /dev/null
+++ b/src/utils/bokante-mastodon.js
@@ -0,0 +1,44 @@
+'use strict';
+
+function getConfig() {
+  return {
+    instanceUrl: process.env.BOKANTE_INSTANCE_URL || 'https://bokante.o-k-i.net',
+    accessToken: process.env.BOKANTE_ACCESS_TOKEN
+  };
+}
+
+async function mastodonFetch(url, options) {
+  const {accessToken} = getConfig();
+  const response = await fetch(url, {
+    ...options,
+    headers: {
+      Authorization: `Bearer ${accessToken}`,
+      ...options.headers
+    }
+  });
+
+  if (!response.ok) {
+    const body = await response.text();
+    throw new Error(`Mastodon ${response.status}: ${body}`);
+  }
+
+  return response.json();
+}
+
+async function createStatus(text, {visibility = 'public'} = {}) {
+  const {instanceUrl} = getConfig();
+  return mastodonFetch(`${instanceUrl}/api/v1/statuses`, {
+    method: 'POST',
+    headers: {'Content-Type': 'application/json'},
+    body: JSON.stringify({status: text, visibility})
+  });
+}
+
+async function getStatusContext(statusId) {
+  const {instanceUrl} = getConfig();
+  return mastodonFetch(`${instanceUrl}/api/v1/statuses/${statusId}/context`, {
+    method: 'GET'
+  });
+}
+
+module.exports = {createStatus, getStatusContext};