Bluesky MCP server: let Claude or any agent post to your Bluesky account

Set it up and post, step by step

1. Add PostWire's MCP server to your agent

   In Claude, open PostWire in the connector directory and press Connect. Anywhere else, add the remote server https://postwire.io/api/mcp (Streamable HTTP; OAuth sign-in or an API key) — in Claude Code: claude mcp add --transport http postwire https://postwire.io/api/mcp. Cursor, VS Code, Windsurf, Codex and Gemini CLI configs: MCP client configs.

2. Sign in with your email

   The first time the agent uses a PostWire tool, a sign-in window asks for your email and a 6-digit code; that also creates a free PostWire account if you have none. No password and no card. Agents that cannot do OAuth send an API key instead (dashboard → API & MCP → Copy key).

3. Create an app password in Bluesky

   In Bluesky, open Settings → Privacy and security → App passwords, add one and copy it. It is not your account password, and deleting it in Bluesky disconnects PostWire.

4. Connect Bluesky

   Ask "connect my Bluesky". create_connect_link gives you a one-hour link; choose Bluesky there and paste your full handle (name.bsky.social) and the app password. PostWire signs in to Bluesky with them before saving, so a wrong handle is refused on that page — and if you pasted your account password and Bluesky asked for an email code, the page tells you to use an app password instead.

5. Let PostWire write the post

   "Write a Bluesky post about our open-source release, and the LinkedIn post for it." generate_posts returns one draft per network and publishes nothing. Bluesky's draft stays within 300 characters, sounds like a person taking part in the conversation, carries one or two specific hashtags and no hard sell; LinkedIn's is a longer first-person post.

6. Publish, or schedule it

   After you approve, the agent calls post_to_social (or schedule_post with a run_at time, or "next_slot"). One image goes in photo_url; up to four go in media, each with its own alt:

   {
     "name": "post_to_social",
     "arguments": {
       "platforms": ["bluesky"],
       "text": "we open-sourced the scheduler today. issues and rude feedback welcome https://example.com/repo #opensource",
       "media": [
         { "url": "https://postwire.io/m/…/calendar.jpg", "alt": "A weekly calendar with six posts queued" },
         { "url": "https://postwire.io/m/…/terminal.jpg", "alt": "Terminal output of the install command" }
       ]
     }
   }

7. Open the post, and see how it did

   The result carries the post's link (https://bsky.app/profile/…/post/…). get_post_status returns it again later, and get_post_performance ranks your Bluesky posts against your own median by likes, reposts and replies, the numbers Bluesky reports. list_scheduled_posts shows what is queued and cancel_scheduled_post removes one before it goes out.

An image from your phone or laptop gets there through create_upload_link: a 24-hour page where you pick the file, then get_uploaded_file returns its media_url. The same post from your own code: POST /api/post with {"platforms": ["bluesky"], "text": "…"} and your API key, or the PostWire node in n8n. Prefer to set it up by hand first? Open the dashboard, connect the account under Accounts and copy your key under API & MCP.