Bluesky MCP server
Let Claude or ChatGPT post to your Bluesky.
Ask in plain English. Your AI writes the Bluesky post, shows it to you, and publishes or schedules it when you say so. Connecting is free.
Free: connect and publish. Paid plans add scheduling and comment replies.
Ask it like this
You say it. Postey does the Bluesky part.
You sayPost this announcement to Bluesky as a short thread.
What happensA thread split to fit Bluesky’s limit, posted once you approve.
You sayRead the replies on my last post and draft answers for me to check.
What happensDraft replies, one per comment, for your review.
What your AI can do on Bluesky
Connecting is free. Here is what each part needs.
- Free A Bluesky version of every draft Each network gets its own caption, checked against Bluesky’s limit.
- Free Publish now Up to 15 posts per network every 30 days on the free plan.
- Paid plans Schedule for later Each network keeps its own time, so a launch can go out in order.
- Paid plans Reply to comments Your AI reads comments on a live Bluesky post and drafts replies for you to check.
300 graphemes, not bytes and not characters, enforced by the AT Protocol itself, so no upgrade raises it. A longer draft is split into a numbered thread rather than rejected. Check a Bluesky post with the free counter
Connect in two steps
Add Postey's address to your AI app, then sign in. Inside Postey, connect your Bluesky account, or ask your AI to start that for you.
https://mcp.postey.ai/mcpClaude
- In Claude, open Customize → Connectors → + → Add custom connector.
- Paste the address and sign in to Postey in your browser.
ChatGPT
- In ChatGPT, open Plugins → + → Add custom MCP server.
- Name it Postey, paste the address, sign in to Postey in your browser, then select Create.
Cursor, Claude Code, Codex and other MCP apps use the same address. Setup for other apps
Questions about the Bluesky MCP server
Is there an MCP server for Bluesky?
Yes. Postey is a remote MCP server at https://mcp.postey.ai/mcp. Add it to Claude, ChatGPT, Cursor or any MCP client, sign in to Postey in your browser, and connect your Bluesky account. Your AI can then draft, publish and schedule Bluesky posts.
Can ChatGPT or Claude post to Bluesky?
Yes, through an MCP server such as Postey. Neither app posts to Bluesky on its own. Once Postey is connected, you ask in plain English and the AI shows you the post before it goes out.
Is the Bluesky MCP server free?
Connecting is free, and the free plan includes publishing. Scheduling and comment replies need a paid plan.
Does it scrape Bluesky profiles?
No. Postey works with accounts you connect yourself. It publishes and schedules your posts and reads comments on them. It does not collect data about other people’s profiles.
Which other networks does it cover?
The same connection also publishes to X, LinkedIn, Threads, TikTok, Instagram, YouTube, Facebook and Pinterest, with a separate caption for each.
Let your AI post to Bluesky.
Free: connect and publish. Paid plans add scheduling and comment replies.