Custom MCP (stdio)

Run a local MCP server as a subprocess. Use this for filesystem, sqlite, github, fetch, and other npm/python MCP packages that expect to be spawned by their host.

Slug: custom-stdio-mcp

Transport: stdio (local subprocess)

Auth: n/a (local subprocess — uses env vars, not an HTTP key)

Setup: Runs locally with your permissions — only connect MCP servers you trust. Env var values are encrypted at rest.

Custom MCP (HTTP)

Connect any HTTP-streaming MCP server. You provide the URL, auth, and a short slug for tool naming.

Models & grants

The curated model catalog, and every power a ROOT agent can be given.