LocalFree

ReasonGate MCP server

cgrtml/reasongate

Provenance gateway for stdio MCP servers that blocks tool calls whose destination or content came from an untrusted tool result, with schema-derived policies.

17 GitHub stars
Source code

Install ReasonGate in Claude Code

Claude Code
claude mcp add reasongate -- uvx reasongate
mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)
{
  "mcpServers": {
    "reasongate": {
      "command": "uvx",
      "args": [
        "reasongate"
      ]
    }
  }
}

Frequently asked questions

What does the ReasonGate MCP server do?

Provenance gateway for stdio MCP servers that blocks tool calls whose destination or content came from an untrusted tool result, with schema-derived policies.

Is the ReasonGate MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does ReasonGate run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add ReasonGate to Claude Code?

Run: claude mcp add reasongate -- uvx reasongate

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