mcpbeat

diffctx MCP Server

io.github.nikolay-e/diffctx
local only

diffctx runs on your own machine — the client starts it, so there is no endpoint to ping. 1 639 installs a week from pypi. Last commit 2 Aug 2026.

Selects the minimum code an LLM needs to review a git diff

Installs per day peak 891 · avg 201 · -37% w/w
a month agotoday
1 639
Installs / week
pypi · diffctx
2
Stars
42 open issues
2 Aug 2026
Last commit
0 releases in 90 days
Apache-2.0
License
Rust

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

run in your terminal
claude mcp add diffctx -- uvx diffctx
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "diffctx": {
      "args": [
        "diffctx"
      ],
      "command": "uvx"
    }
  }
}
~/.codex/config.toml
[mcp_servers.diffctx]
command = "uvx"
args = ["diffctx"]
.cursor/mcp.json
{
  "mcpServers": {
    "diffctx": {
      "args": [
        "diffctx"
      ],
      "command": "uvx"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "diffctx": {
      "args": [
        "diffctx"
      ],
      "command": "uvx"
    }
  }
}

diffctx — questions

Answers built from our own checks of this server.

Why is there no uptime for diffctx?
diffctx runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the pypi package diffctx was installed 1 639 times last week.
How do I connect diffctx?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It runs locally, so the command pulls diffctx straight from pypi; nothing to host, nothing to sign up for.
How many people use diffctx?
The pypi package diffctx was installed 1 639 times in the last week. Week over week that is -37%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.
Is diffctx open source?
Yes — it is published under the Apache-2.0 licence, written in Rust, 2 stars on GitHub and 42 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.