Prover MCP Server

Lean 4 MCP server: compile, prove theorems, and formalize math with Mathlib.

Local serverstdio

What is the Prover MCP Server?

Lean 4 MCP server: compile, prove theorems, and formalize math with Mathlib.

The short version

Add to your MCP client (e.g. Claude Desktop claude_desktop_config.json):

The tools it exposes

The server publishes 1 tool. What each one is for:

  • Poll — All submit tools are asynchronous — they return a job_id immediately. Poll with lean4_get_job_status(job_id) until status is completed or failed

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

How to install the Prover MCP Server

{
  "mcpServers": {
    "ax-prover": {
      "type": "streamable-http",
      "url": "https://prover.axiomatic-ai.com/mcp/"
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Example prompts to try

  • “Use Prover to Poll.”

Frequently asked questions

Lean 4 MCP server: compile, prove theorems, and formalize math with Mathlib. Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.