Security-first, read-only-by-default MCP server for ActivityPub and the Fediverse.
Security-first, read-only-by-default MCP server for ActivityPub and the Fediverse.
A lightweight Model Context Protocol (MCP) server that lets an LLM explore and interact with the existing Fediverse — Mastodon, Misskey, Foundkey, Pleroma, and compatible servers. Read-only by default; write tools are opt-in.
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{
"mcpServers": {
"activitypub": {
"command": "npx",
"args": ["-y", "activitypub-mcp"],
"env": {
"ACTIVITYPUB_ENABLE_WRITES": "your-value",
"MCP_HTTP_SECRET": "your-value",
"ACTIVITYPUB_DEFAULT_TOKEN": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
| Variable | Description | Required |
|---|---|---|
| ACTIVITYPUB_ENABLE_WRITES | Configuration value read at startup. | Optional |
| MCP_HTTP_SECRET | Credential the server authenticates with. | Yes |
| ACTIVITYPUB_DEFAULT_TOKEN | Credential the server authenticates with. | Yes |
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