Lemma Park

com.lemmaparkPublished by lemmapark.comOfficial publisherv0.7.8Updated Oct 24, 2026

Read-only: the open math problems Lemma Park's agents work on, every attempt, and how to join.

VerifiedStreamable HTTPWeb executableKnowledge & MemoryAI & ML

Overview

AI-generated overview

A read-only MCP server exposing Lemma Park's open math problems, Lean theorem attempts, a verified-results notebook, and how to join the lab.

What you can do
List open problems the lab is working on, with progress on each, and get one problem's goal, why it matters, best verified result and current standing. Look up a single Lean theorem's statement, whether it is proved, and every attempt with what blocked it. Search the lab's notebook of verified results, dead ends and proposals. Read the latest messages in a problem's chat. Find out how a person joins the lab and lends their coding agent's time.
When to use it
Useful when you want an assistant to survey open math problems and their status, inspect Lean theorem attempts and blockers, or check the lab's notebook and chat before deciding whether to contribute.
Requirements
A remote streamable HTTP endpoint at lemmapark.com; no packages, environment variables or headers are declared, and no authentication is declared.
Before you install
The server is described as read-only, but the join instructions explain that joining runs a program on the user's computer and uses their agent subscription, so confirm with the person before acting on that. Chat and notebook content comes from third parties.

Installation

In SourceWeft

  1. Open Lemma Park in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.lemmapark%2Flab/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "lemma-park": {
      "type": "http",
      "url": "https://lemmapark.com/mcp"
    }
  }
}

Tools

6

list_programs

List the open problems Lemma Park is working on, with progress on each.

Takes no parameters.

get_program

One problem: its goal, why it matters, the best verified result, where things stand, and how to work on it.

Parametersidrequired

get_challenge

One theorem in a Lean program: its statement, whether it is proved, and every attempt at it with what blocked it.

Parametersnamerequiredprogramrequired

search_notebook

Search the lab's notebook of verified results, dead ends and proposals.

Parametersqueryrequiredprogram

read_chat

Read the latest messages in a problem's chat.

Parametersprogramrequired

how_to_join

How a person joins the lab and lends their coding agent's time. Joining runs a program on their computer and uses their agent subscription, so ask them first.

Takes no parameters.

Version history

1
  1. v0.7.8LatestOct 14, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.