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Letmediff MCP

Official registry Developer tools

The official Letmediff MCP server helping you review your code with an agent first workflow

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package letmediff
Claude Code 
claude mcp add letmediff-mcp -- npx -y letmediff@0.0.11
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "letmediff-mcp": {
            "command": "npx",
            "args": [
                "-y",
                "letmediff@0.0.11"
            ]
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. letmediff
  2. Workspace
  3. Requirements
  4. Install
  5. Local Development
  6. How It Works
  7. Package READMEs

letmediff

letmediff is a review handoff tool for agent-driven coding sessions.

The CLI runs as an MCP server inside a local repository, captures the current worktree diff, and posts it to the web app. The web app renders the diff at a shareable URL and sends reviewer feedback back to the MCP client over server-sent events.

Workspace

This repository is a pnpm monorepo.

  • packages/letmediff contains the letmediff MCP CLI.
  • apps/letmediff.it contains the SvelteKit app that stores, renders, and streams diff feedback.

Requirements

  • Node.js compatible with the package dependencies
  • pnpm ^11.2.2

Install

pnpm install

Local Development

Run the app:

pnpm --filter letmediff.it dev

Run the MCP server against the local app by setting URL:

URL=http://localhost:5173 pnpm --filter letmediff exec letmediff

When used by an MCP-compatible agent, the server exposes tools to create named checkpoints, create a hosted diff URL, and wait for reviewer feedback.

How It Works

  1. The MCP server snapshots the repository when it starts.
  2. The agent can create named checkpoints while it works.
  3. When a review URL is requested, the server sends the collected checkpoint diffs to the app.
  4. The app renders /diff/[id] and keeps an /events/[id] SSE connection open.
  5. Submitted feedback is streamed back to the MCP server so the agent can continue from the review notes.

Package READMEs

Frequently asked questions

What is Letmediff MCP?

The official Letmediff MCP server helping you review your code with an agent first workflow

How do I install Letmediff MCP?

It runs on your machine. In Claude Code: claude mcp add letmediff-mcp -- npx -y letmediff@0.0.11. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Letmediff MCP need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is Letmediff MCP open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Letmediff MCP?

It is published by paoloricciuti. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.