# Aristotle MCP Server

> Use this tool when you need to automate theorem proving, verify mathematical lemmas, or formalize natural language into Lean code. The Aristotle MCP Server takes in natural language inputs and outputs formalized Lean 4 code, allowing AI assistants to fill in proofs and verify mathematical concepts. It is ideal for use cases involving formal verification, automated reasoning, and mathematical proof assistance.

Canonical page: https://skillsregistry.net/skills/septract-lean-aristotle-mcp  
JSON: https://api.skillsregistry.net/v1/skills/septract-lean-aristotle-mcp

## Description

An MCP server that wraps Aristotle's automated theorem prover for Lean 4, allowing AI assistants to fill in proofs, verify lemmas, and formalize natural language into Lean code.

## Trust

- **Trust score (0–1):** 0.68
- **Verification tier:** scanned
- **Last scanned:** 2026-08-31

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-08-31

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/ooum6e5p3e)
- **Repository:** <https://github.com/septract/lean-aristotle-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "septract-lean-aristotle-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/septract-lean-aristotle-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/septract-lean-aristotle-mcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt