Activitypub MCP Server: Install & Setup

Install Activitypub in Claude Code

Claude Code

claude mcp add activitypub -- npx -y activitypub-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "activitypub": {
      "command": "npx",
      "args": [
        "-y",
        "activitypub-mcp"
      ]
    }
  }
}

Frequently asked questions

What does the Activitypub MCP server do?

Explore and interact with the Fediverse via ActivityPub: WebFinger discovery, timelines and instance exploration across Mastodon, Pleroma, Misskey and more.

Is the Activitypub MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does Activitypub run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Activitypub to Claude Code?

Run: claude mcp add activitypub -- npx -y activitypub-mcp

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