diffctx runs on your own machine — the client starts it, so there is no endpoint to ping. 597 installs a week from pypi. Last commit 17 Sep 2026.
Selects the minimum code an LLM needs to review a git diff
We read the source, 21 h ago · rules 3dff92dd89df
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
const result = spawnSync(binaryPath, process.argv.slice(2), { stdio: 'inherit' });
const binaryPath = path.join(__dirname, binaryName);
subprocess.run(
- path: .npmrc
Found in continuous integration, deployment or infrastructure files, or in a neighbouring package of the same monorepo. None of this is installed when you add the server: it describes how the project is built and released. We list it because a leaked key in a build pipeline is still a real problem, but it is not something this server does on your machine.
- name: Approve PR (all update types)
env:
PR_URL: ${{ github.event.pull_request.html_url }}
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
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.
claude mcp add diffctx -- uvx diffctx
{
"mcpServers": {
"diffctx": {
"args": [
"diffctx"
],
"command": "uvx"
}
}
}
[mcp_servers.diffctx]
command = "uvx"
args = ["diffctx"]
{
"mcpServers": {
"diffctx": {
"args": [
"diffctx"
],
"command": "uvx"
}
}
}
{
"mcpServers": {
"diffctx": {
"args": [
"diffctx"
],
"command": "uvx"
}
}
}
Code-review MCP: review a GitLab MR or GitHub PR against the whole codebase, not just the diff.
Risk-scan a diff, flag AI-generated-code tells, find secrets. 5 of 7 tools need no account.
The official Letmediff MCP server helping you review your code with an agent first workflow
Gemini-powered MCP server for code review analysis.
Find the LLM/AI calls you didn't need — where plain code or a regex does the job. No model.
Git hosting for AI agents: repos, changes, focused diffs, reviews, issues, code search.
Detect hardcoded secrets in source and config. Reports masked previews, never the values.
Human-to-AI code review bridge. Review UI in the browser, AI agents fix code via MCP.
Answers built from our own checks of this server.