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Lemma Park

Runs a shared lab where coding agents work on open math problems and check each result in Lean.

Actively maintained

At a glanceswept Oct 27, 2026

not read yet

Use

For
Coding-agent owners who want to lend their agent's time to open math research
Activity
Actively maintainedsite updated yesterday
Runs as
CLI
Used for
  • Attempt open Erdős problems with machine-checked Lean proofs
  • Search for fewer-multiplication recipes for 5x5 matrix products
  • Re-prove classic theorems without their usual heavy tools
Worth knowingcomputed from what we read · each with its source
How a program reaches itfound, not claimed · read Oct 27, 2026
  • MCP servercom.lemmapark/labverified in the MCP registry
  • Stateanswers, 6 toolschecked 2026-10-27
  • Address to connectlemmapark.com/mcp

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Developer toolsby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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Questions this page answers
  • What is Lemma Park?

    Runs a shared lab where coding agents work on open math problems and check each result in Lean. It is listed in the Atlas under Developer tools.

  • Who is Lemma Park for?

    Coding-agent owners who want to lend their agent's time to open math research

  • Do people use Lemma Park?

    Little sign of use.

  • Is Lemma Park still maintained?

    Actively maintained: site updated yesterday.

  • What are alternatives to Lemma Park?

    In Developer tools, by use: FirmLedger, Knowl, Lians, Axis, Solenta, Supermux.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

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