# lean-mcp

> Use this tool when you need to verify mathematical proofs in Lean 4, enabling AI clients to compile and check theorems with Mathlib, and solve problems related to formal verification and proof validation. It takes Lean 4 proofs as input and outputs verification results, allowing for reliable validation of mathematical theorems. Ideal for use cases requiring rigorous proof checking and validation in mathematical research and development.

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

## Description

Enables verification of Lean 4 mathematical proofs via MCP tools, allowing AI clients to compile and check theorems with Mathlib.

## Trust

- **Trust score (0–1):** 0.69
- **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/oelk7dvv28)
- **Repository:** <https://github.com/KrystianYCSilva/lean-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": "krystianycsilva-lean-mcp"
    }
  }
}
```

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