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Lettuce gives your coding agent a graph map of your codebase so it answers questions from precise pointers instead of grepping and reading whole files. Run it two ways:
  • Local-first — index a repo into a SQLite file on your machine and connect an agent to a stdio MCP server. No account, no upload, no network at query time. See Run locally.
  • Cloud — a hosted MCP endpoint. Add a repo, connect your agent, ask away. The three steps below.

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Three steps

1

Sign up

Create an account at uselettuce.dev/signup.
2

Generate an API key

On the API keys page, click New key and copy the cwz_… value.
3

Connect your agent

Drop the MCP endpoint + your key into your agent’s config — exact snippets for Claude Code, Cursor, VS Code, Windsurf, and Cline on the next page.
4

Tell it to use lettuce

Add a short snippet to the agent’s system prompt so it actually reaches for the new tools — see Agent instructions.
The full walkthrough lives in the Quickstart.

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Works with any MCP agent

Lettuce speaks the Model Context Protocol, so it works with Claude Code, Cursor, GitHub Copilot, Windsurf, Cline, and any other MCP-capable agent.

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Languages

Lettuce supports Python, TypeScript, JavaScript, Go, Rust, Java, Ruby, C, C++, .NET (C#), PHP, Kotlin, Scala, Swift, Bash, and Lua.