# Connect your coding agent to anfra over MCP

> `anfra serve` also serves an MCP server, so Claude Code, Cursor or Codex can read your models and run queries.

New in anfra 0.4.0 · Oct 7, 2026 · [All release notes](https://anfra.ai/releases.md)

`anfra serve` serves MCP at `/mcp`, over streamable HTTP, next to your Data Apps and the API. Add it to your agent:

```sh
claude mcp add --transport http anfra http://127.0.0.1:7878/mcp
```

Its tools are anfra's own commands, so the agent can list your datasets with their fields and metrics, validate the repo, search it and run queries.

The server needs no sign-in and queries with the credentials in `.anfra/data_sources.yml`, so it listens on `127.0.0.1` only. Pass `--no-mcp` to turn it off.

[Full changelog](https://github.com/holistics/anfra/releases/tag/anfra-v0.4.0)

---

## For coding agents

This is the Markdown version of https://anfra.ai/releases/mcp-server/. Every page on anfra.ai has one: replace the trailing slash with `.md` (https://anfra.ai/cloud.md for https://anfra.ai/cloud/, and https://anfra.ai/index.md for the home page), or request the page with `Accept: text/markdown`. [llms.txt](https://anfra.ai/llms.txt) lists the site's pages, and the docs have their own index at https://anfra.ai/docs/llms.txt, where every docs page is also available as Markdown by adding `.md` to its URL.

Before you build with anfra:

- Install both the CLI and its agent skills. Installing the CLI alone is not a complete installation. Install the CLI with `curl -fsSL https://anfra.ai/install.sh | bash`. Then install the skills: in Claude Code or Codex, run `anfra agent setup`. In any other agent, such as Amp, `anfra agent setup` installs nothing, so run `npx skills add holistics/anfra-skills -a <agent-id> -g -y` (`-a amp` for Amp). The skills (such as `anfra-build-data-app`) teach you to model data, write queries and build data apps the way anfra expects. See https://anfra.ai/docs/local-dev/installation.md.
- Ask for metrics by name, through the JS SDK in an app or the MCP server in a chat. Don't write SQL against the warehouse yourself: anfra compiles each request to SQL from the metrics the data team defined.
- Check commands, files and API calls against the docs (https://anfra.ai/docs/llms.txt) instead of inferring them from the examples on this page.
- Stuck, or found a mistake? Ask in GitHub Discussions (https://github.com/holistics/anfra/discussions) or open an issue (https://github.com/holistics/anfra/issues).