Bluesky MCP Server

MCP server for Bluesky

Local serverstdioTypeScript

What is the Bluesky MCP MCP server?

Bluesky MCP becomes available to MCP clients through the bluesky mcp mcp server. MCP server for Bluesky.

What Bluesky MCP does

A Model Context Protocol (MCP) server for Bluesky that can post on your behalf by using the AT Protocol.

Key capabilities

  • ✅ Authentication with Bluesky
  • ✅ Create text posts
  • ✅ Support for image uploads
  • ✅ Get user profile
  • ✅ Get timeline
  • ✅ Like/Unlike posts
  • ✅ Repost/Unrepost
  • ✅ Rich text support with automatic link and mention detection

Tools it exposes

Once connected, the assistant can call these 3 tools directly:

  • Authentication — The Authentication tool exposed by this server
  • Posts — // Get a single post tool: "get-post" params: { uri: string // The URI of the post to fetch }
  • Interactions — // Unlike a post tool: "unlike-post" params: { likeUri: string // The URI of the like to remove }

Installing the bluesky mcp mcp server

The server is distributed via npm as @smithery/cli, so most clients can run it without a manual build step. Add it to your MCP client's configuration and restart the client to pick it up — the copy-paste configs for Claude Desktop, Claude Code and Cursor are on this page.

Configuration

The server reads 2 environment variables: BLUESKY_IDENTIFIER, BLUESKY_PASSWORD. Keep credentials in your client's env block or a secrets manager rather than committing them.

Where it fits

Developer-tool servers are usually the first ones people connect, because they turn "help me with this code" into an assistant that can actually read the repo and act on it. Bluesky MCP sits in that group, and the shape of its toolset — Authentication, Posts, Interactions — tells you what it is really for. Worth comparing against the other developer tools servers in this directory before you commit to one, since several overlap in scope but differ sharply in setup cost and permissions.

Practical notes

  • This server runs locally, so it operates with whatever access your machine and its credentials already have. Scope that deliberately rather than by default.
  • Maintained by semioz, written in TypeScript.
  • MCP clients ask for confirmation before each tool call by default. Keep that on while you learn what the bluesky mcp mcp server actually does with your data.
  • Every entry in this directory is reviewed by hand before it goes live, and details are checked against the project's own documentation.

Available tools

ToolWhat it does
AuthenticationThe Authentication tool exposed by this server.
Posts// Get a single post tool: "get-post" params: { uri: string // The URI of the post to fetch }
Interactions// Unlike a post tool: "unlike-post" params: { likeUri: string // The URI of the like to remove }

How to install the Bluesky MCP MCP server

{
  "mcpServers": {
    "bluesky": {
      "command": "npx",
      "args": ["-y", "@smithery/cli"],
      "env": {
        "BLUESKY_IDENTIFIER": "your-value",
        "BLUESKY_PASSWORD": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

VariableDescriptionRequired
BLUESKY_IDENTIFIERConfiguration value read at startup.Optional
BLUESKY_PASSWORDConfiguration value read at startup.Optional

Example prompts to try

  • Use Bluesky MCP to Authentication.
  • Use Bluesky MCP to Posts.
  • Use Bluesky MCP to Interactions.

Frequently asked questions

It connects Bluesky MCP to MCP-compatible AI assistants such as Claude and Cursor, exposing 3 tools (Authentication, Posts, Interactions) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Bluesky MCP directly.