Devvit app development is the narrow case this exists for, and it comes from Reddit rather than a third party reading the docs from outside. Install is one `npx` line with no key; the one setting worth knowing before you add it is `DEVVIT_DISABLE_METRICS`, since telemetry is on unless you say otherwise.
A companion MCP server published by Reddit for people writing applications on its developer platform. It is installed alongside your editor or LLM client while you build a Devvit app, so the assistant has a Reddit-side helper rather than only what it can guess about the platform.
The server ships as `@devvit/mcp` and is added with a two-line `mcp.json` entry, no build step and no credential. It reports usage metrics by default; setting `DEVVIT_DISABLE_METRICS` to `true` in the server's environment turns that off. If you are working on the server itself rather than using it, `npm run dev` opens the tool list so you can trigger calls directly.
Nothing to sign up for. Run it with `npx -y @devvit/mcp` over stdio; the package version in the repository is a placeholder that CI replaces at release, so check the git tags for what actually shipped. Node comes from your own toolchain — the contributor path uses `nvm use`. To point a client at a local build instead, give it the full path to your node runtime and to `/dist/index.js`.
One command — npx -y @devvit/mcp