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Summary
Read & post on any Mastodon instance from any AI agent. 10 tools, Bearer token auth.
Try asking
Example prompts for Mastodon
Click any prompt to copy it. Paste into Claude, ChatGPT, Cursor, Gemini, Copilot or OpenClaw to run it against this connector.
Claude is AI and can make mistakes. Please double-check responses.
💡 No install? Use cloud.anythingmcp.com directly. Sign in, click Connectors → Mastodon, paste your credentials, mint an MCP API key — done. No Docker, no
git clone, no local server.
Mastodon + ChatGPT
Read & post on any Mastodon instance from any AI agent. 10 tools, Bearer token auth.
Prerequisites
See the full setup instructions baked into the connector (visible in the in-app store when you select the connector). The required environment variables for this connector are:
MASTODON_INSTANCE_URL, MASTODON_ACCESS_TOKEN
Step 1 — Get credentials
This connector wraps the Mastodon REST API (any instance — set baseUrl to your instance).
Setup:
- Pick your instance (e.g.
https://mastodon.social,https://fosstodon.org, your self-hosted one). - Log in → Preferences → Development → New application.
- Name it (e.g. 'mcp'). Scopes:
read,write,follow,push— tick whatever your use case needs (don't over-grant). - Save → copy the Your access token value (shown only once). This is a personal access token tied to your account.
- Set
MASTODON_INSTANCE_URL(e.g.https://mastodon.social) andMASTODON_ACCESS_TOKEN.
Authentication: Authorization: Bearer ${MASTODON_ACCESS_TOKEN} on every request.
…(continued in the in-app connector instructions)
Step 2 — Install the adapter
curl -fsSL https://raw.githubusercontent.com/HelpCode-ai/anythingmcp/main/docker-compose.quickstart.yml -o docker-compose.yml
printf 'JWT_SECRET=%s\nENCRYPTION_KEY=%s\n' "$(openssl rand -hex 32)" "$(openssl rand -hex 32)" > .env
docker compose up -d
Step 3 — Add the connector in ChatGPT
Your server URL: in AnythingMCP, open MCP Servers → the server this connector is on, and copy its URL (
https://cloud.anythingmcp.com/mcp/…). Use it wherever this guide showsYOUR_SERVER_ID.
ChatGPT connects to MCP servers as custom apps in developer mode, available on paid plans (not on Free). On Business and Enterprise workspaces an admin may have to allow it first.
- In ChatGPT, open Settings → Security and login and turn on Developer mode.
- Go to chatgpt.com/plugins and click +.
- Enter a name and a short description, e.g. Name:
Mastodon. - Under Connection, enter the MCP server URL
https://cloud.anythingmcp.com/mcp/YOUR_SERVER_IDand create the connection. - When ChatGPT asks, sign in to AnythingMCP (OAuth) and allow access.
Available tools
| Tool | What it does |
|---|---|
mastodon_verify_credentials | Return the authenticated account: id, username, acct (full handle), display_name, note, avatar, statuses_count, followers_count, following_c |
mastodon_get_account | Fetch a public account by ID |
mastodon_account_statuses | Get a user's recent statuses (toots) |
mastodon_home_timeline | Get the authenticated user's home timeline (their follows) |
mastodon_public_timeline | Get the public timeline |
mastodon_hashtag_timeline | Get statuses tagged with a hashtag (no # prefix) |
mastodon_search | Full-text search across accounts, statuses and hashtags |
mastodon_get_status | Fetch a single status by ID |
mastodon_post_status | Post a new status (toot) |
mastodon_delete_status | Delete one of your own statuses |
FAQ
Does the free ChatGPT plan work with custom MCP connectors? No. Custom MCP connections need developer mode, which is only on paid plans.
Next steps
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