BlueSky MCP server

The BlueSky MCP Server provides standardized access to BlueSky social network data through the official API. It allows you to retrieve user profiles and social graph information through a clean, consistent interface.

Installation

Prerequisites

• Python 3.12 or higher
• httpx
• mcp

Environment Setup

You'll need to set up authentication with your BlueSky credentials:

1. Create a BlueSky account if you don't have one
2. Generate an App Password in your BlueSky account settings
3. Set these environment variables:
   • BLUESKY_IDENTIFIER: Your BlueSky handle (e.g., "username.bsky.social")
   • BLUESKY_APP_PASSWORD: Your generated App Password

Installing Libraries

uv pip install -e .

Configuring Claude Desktop

On MacOS:

Edit the configuration file at:

~/Library/Application\ Support/Claude/claude_desktop_config.json

On Windows:

Edit the configuration file at:

%APPDATA%/Claude/claude_desktop_config.json

Add the following to your configuration:

"mcpServers": {
    "bluesky-mcp": {
        "command": "uv",
        "args": [
        "--directory",
        "C:\\Users\\{INSERT_USER}\\YOUR\\PATH\\TO\\bluesky-mcp\\bluesky-mcp",
        "run",
        "src/bluesky_mcp/server.py"
        ],
        "env": {
            "BLUESKY_IDENTIFIER": "your.handle.bsky.social",
            "BLUESKY_APP_PASSWORD": "your-app-password"
        }
    }
}

Running the Server

Basic Execution

From the bluesky_mcp repository:

uv run src/bluesky_mcp/server.py

With Inspector (Optional)

To run the server with the MCP inspector:

npx @modelcontextprotocol/inspector uv --directory C:\\Users\\{INSERT_USER}\\YOUR\\PATH\\TO\\bluesky-mcp run src/bluesky_mcp/server.py

Available Tools

The server provides two main tools:

get-profile

This tool retrieves detailed profile information for a BlueSky user.

Input Schema:

{
    "handle": {
        "type": "string",
        "description": "The user's handle (e.g., 'alice.bsky.social')"
    }
}

Example Response:

Profile information for alice.bsky.social:

Handle: alice.bsky.social
Display Name: Alice
Description: Just a BlueSky user sharing thoughts
Followers: 1234
Following: 567
Posts: 789

get-follows

This tool retrieves a list of accounts that a user follows, with pagination support.

Input Schema:

{
    "actor": {
        "type": "string",
        "description": "The user's handle (e.g., 'alice.bsky.social')"
    },
    "limit": {
        "type": "integer",
        "description": "Maximum number of results to return",
        "default": 50,
        "minimum": 1,
        "maximum": 100
    },
    "cursor": {
        "type": "string",
        "description": "Pagination cursor",
        "optional": true
    }
}

Example Response:

Follows for alice.bsky.social:

Follows:
Handle: bob.bsky.social
Display Name: Bob
---
Handle: carol.bsky.social
Display Name: Carol
---
Handle: dave.bsky.social
Display Name: Dave
---

More results available. Use cursor: bafygeia...

Error Handling

The server handles various error scenarios:

• Authentication failures
• Rate limiting
• Network connectivity issues
• Invalid parameters
• Timeout issues
• Malformed responses

All errors are returned in clear, human-readable format to assist with troubleshooting.

How to install this MCP server

For Claude Code

To add this MCP server to Claude Code, run this command in your terminal:

claude mcp add-json "bluesky-mcp" '{"command":"uv","args":["run","src/bluesky_mcp/server.py"],"env":{"BLUESKY_IDENTIFIER":"your.handle.bsky.social","BLUESKY_APP_PASSWORD":"your-app-password"}}'

See the official Claude Code MCP documentation for more details.

For Cursor

There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json file so that it is available in all of your projects.

If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json file.

Adding an MCP server to Cursor globally

To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".

When you click that button the ~/.cursor/mcp.json file will be opened and you can add your server like this:

{
    "mcpServers": {
        "bluesky-mcp": {
            "command": "uv",
            "args": [
                "run",
                "src/bluesky_mcp/server.py"
            ],
            "env": {
                "BLUESKY_IDENTIFIER": "your.handle.bsky.social",
                "BLUESKY_APP_PASSWORD": "your-app-password"
            }
        }
    }
}

Adding an MCP server to a project

To add an MCP server to a project you can create a new .cursor/mcp.json file or add it to the existing one. This will look exactly the same as the global MCP server example above.

How to use the MCP server

Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.

The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.

You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.

For Claude Desktop

To add this MCP server to Claude Desktop:

1. Find your configuration file:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json
• Linux: ~/.config/Claude/claude_desktop_config.json

2. Add this to your configuration file:

{
    "mcpServers": {
        "bluesky-mcp": {
            "command": "uv",
            "args": [
                "run",
                "src/bluesky_mcp/server.py"
            ],
            "env": {
                "BLUESKY_IDENTIFIER": "your.handle.bsky.social",
                "BLUESKY_APP_PASSWORD": "your-app-password"
            }
        }
    }
}

3. Restart Claude Desktop for the changes to take effect