What is diffgate?
diffgate is a MCP server by srbsa that deterministic guardrail for AI-written diffs: AST-based checks for SQLi, SSRF, XXE, hardcoded secrets and over-abstraction, scoped to the changed lines. It is listed under Developer tools and has 5 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | srbsa |
| Repository | srbsa/diffgate |
| Popularity | 5 GitHub stars |
| Category | Developer tools |
| Security | Low risk (96/100) |
| Rank | #2,171 of 4,418 MCP servers; #494 in Developer tools |
| License | Apache-2.0 |
| Last commit | 2026-07-27 |
| Runs | Locally |
| Language | TypeScript |
| Platforms | macOS, Windows, Linux |
Is diffgate safe to install?
diffgate scores 96/100 on the MCPMods security check: Low risk. No checks raised a concern. It passed 5 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Community-built server | Note |
| Runs on your machine only | Pass |
| No credentials mentioned | Pass |
| Read-only by description | Pass |
| No code execution | Pass |
| Source on GitHub | Pass |
How do I install diffgate?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/srbsa/diffgate
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add diffgate -- <command from README> claude mcp add --transport http diffgate <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs diffgate for you:
Add the "diffgate" MCP server from https://github.com/srbsa/diffgate to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.