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Updated October 11, 2026 Add Raff to Claude Code and it can create a database for the project you are working on, put the connection string in your .env, write the migrations and check the result, without leaving the terminal.

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Before you start

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Steps

1

Add the server

By default the server is added for you in the current project. Add --scope user to have it in every project, or --scope project to share it with your team through the project’s .mcp.json.
2

Sign in with Raff

Start Claude Code, run /mcp, select raff and choose to authenticate. A Raff page opens in your browser: sign in, pick the account and click Allow access. Claude Code shows the server as connected and refreshes the sign-in on its own.From the shell, claude mcp login raff does the same.
3

Ask Claude Code

“Create a free Postgres database on Raff for this project and put the connection string in .env as DATABASE_URL.”

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Use an API key instead

On a server or in CI, where no browser can open, pass a Raff API key as a header:
Keep the key out of shared files: with --scope project the header would be written to .mcp.json.

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Verify

raff is listed as connected. In Claude Code, “list my Raff databases” answers with your databases.

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Remove

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Next steps

Create a database from chat

What happens when you ask for a database.

Tools

Everything Claude Code can do in Raff.
Last modified on October 11, 2026