Is the Mastodon MCP server free?

Yes. Activepieces is open source and free to start, and the MCP server is included on every plan, from the free cloud tier to any self-hosted deployment.

How do I connect Mastodon to Claude or Cursor?

Connect Mastodon in Activepieces, enable the server under Settings → MCP Server, then paste your server URL into your client config. It authenticates over OAuth on first use.

What can my agent do in Mastodon?

It can call 2 tools, including Post Status, Custom API Call, and chain them with steps in other apps inside the same run.

Is it safe to let an agent call Mastodon?

Connections use OAuth2 with limited scopes and are stored under 256-bit encryption, with no API to read them back, so an agent gets scoped access rather than your keys.

Mastodon MCP server

Open-source decentralized social network

Mastodon is not a separate install. One Activepieces MCP server exposes it alongside 760+ other apps, behind a single URL.

Start building See the Mastodon integration

Tools: 2
Works with: Any MCP client
Auth: Custom auth
License: MIT, open source
Updated: September 2026

About the Mastodon MCP server

Connect Mastodon once in Activepieces and every action it ships becomes a tool your assistant can call, behind the same server URL as the rest of your apps. Your agent reaches Mastodon and 760+ other apps over a single connection, on our cloud or a self-hosted install.

Tools

Mastodon tools your AI can run

Once connected, your assistant can call any of these Mastodon actions by asking in plain language.

Post Status
Post a status to Mastodon
2 fields
Custom API Call
Make a custom API call to a specific endpoint
10 fields

Give your assistant Mastodon

Connect Mastodon once and every tool above is callable from Claude, Cursor or any MCP client, behind the same server URL as 760+ other apps. Free to start.

Get your server URL Talk to sales

Mastodon MCP, answered.

No. That is the point of it. One Activepieces server exposes Mastodon alongside every other piece you connect, so your client keeps a single connection.