diffctx MCP Server

by nikolay-eio.github.nikolay-e/diffctxv1.18.4

Selects the minimum code context needed to understand a git diff, using deterministic graph-based fragment selection under a token budget.

6Pythonstdioofficial registry

context tax

queued

security

queued

cold start

queued

freshness

Active3d ago

Install diffctx MCP server

claude mcp add diffctx -- uvx diffctx

{
  "mcpServers": {
    "diffctx": {
      "command": "uvx",
      "args": [
        "diffctx"
      ]
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "diffctx": {
      "command": "uvx",
      "args": [
        "diffctx"
      ]
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "diffctx": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "diffctx"
      ]
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "diffctx": {
      "command": "uvx",
      "args": [
        "diffctx"
      ]
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Active — last maintenance signal 3d ago. The newest of the signals below sets the band.

›How do I install the diffctx MCP server in Claude Code?

Run: claude mcp add diffctx -- uvx diffctx. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does diffctx require an API key?

No required environment variables are declared in its published metadata.

›Can I use diffctx as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is diffctx in the official MCP registry?

Yes, as io.github.nikolay-e/diffctx.

Other version control MCP servers.