MCP.Market

Polymarket MCP server

by beejmaxx·io.github.beejmaxx/polymarket-mcp·v0.1.1
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Polymarket market data, live CLOB books, replay, simulation, and opt-in trading in Rust.

A88/100grade A
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Safety scan
A88/100

full report

Adoption
New

0 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

Polymarket MCP tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.9 · 2026-09-24 · same rubric, same numbers if you re-run it

no findings
  • –Code scanpackage could not be scannedn/a
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 23 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 88/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Polymarket MCP compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
88/100
higher than 75% of 48,255 servers

Install Polymarket MCP in Claude Code, Cursor or VS Code

The registry entry has no remote endpoint or installable package.

What the publisher says

From the Polymarket MCP repository's README, as published. We do not edit it. Read it on GitHub

Polymarket MCP

A self-contained Rust MCP server for Polymarket: source-linked market briefs, public discovery, exact CLOB V2 books, wallet analytics, realtime market state, SQLite recording/replay, fill simulation, and safely gated optional trading.

The default research profile needs no API key or wallet. It exposes 30 public/realtime tools and does not advertise or accept calls to authenticated trading tools. A separate 11-tool chatgpt profile is compact, stateless, credential-blind, and available over Streamable HTTP with an optional inline market card.

Install in a minute

macOS or Linux:

curl --proto '=https' --tlsv1.2 -LsSf https://raw.githubusercontent.com/beejmaxx/polymarket-mcp-rs/main/scripts/install.sh | sh
polymarket-mcp-rs doctor

Windows PowerShell:

irm https://raw.githubusercontent.com/beejmaxx/polymarket-mcp-rs/main/scripts/install.ps1 | iex
polymarket-mcp-rs doctor

Or use a package manager:

brew install beejmaxx/tap/polymarket-mcp-rs
scoop bucket add beejmaxx https://github.com/beejmaxx/scoop-bucket
scoop install beejmaxx/polymarket-mcp-rs

Then add it to a client:

codex mcp add polymarket -- polymarket-mcp-rs
# or
claude mcp add polymarket -- polymarket-mcp-rs

Prebuilt binaries and a one-click polymarket-mcp.mcpb bundle are attached to every GitHub release. See the install guide for Claude Desktop, VS Code, source builds, custom database paths, and Windows details.

Why this server

  • Verified replacement surface: 46 tools across public data, live books, research workflows, and opt-in account operations, with an automated live audit against all 25 Python demo tools.
  • Answer-ready workflows: one market brief joins metadata, executable books, history, fill impact, source URLs, timestamps, and limitations; wallet and explicit negative-risk event summaries avoid unnecessary tool chains.
  • Correct numeric boundaries: decimal financial values and 256-bit IDs stay strings across JSON, preventing floating-point and integer loss.
  • Stateful market research: Rust maintains reconstructed books and feed health internally instead of sending every tick to the model.
  • Honest replay: SQLite stores observations captured by this process, tracks dropped updates, and never presents them as complete exchange history.
  • Safe defaults: trading tools are absent by default; exposing them and enabling mutation are separate decisions.
  • Operationally simple: one binary, stdio or stateless Streamable HTTP, structured errors, health and Prometheus endpoints, an offline/online doctor, graceful shutdown, daily production canaries, containers, checksums, SBOMs, and release provenance.

A useful first prompt

Find the five highest-volume active Polymarket markets. For each, show the current outcome prices, liquidity, spread, order-book imbalance, and estimated slippage for 100 shares. Explain data limitations and do not recommend a trade.

Other demo prompts are in docs/DEMO.md.

Tool profiles

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Polymarket MCP: common questions

Is Polymarket MCP server safe?
Yes, by our scan: it is graded A (88/100). Read the Polymarket MCP safety report
Does Polymarket MCP need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Polymarket MCP maintained?
The last commit was 64 days ago (2026-09-01). The latest release is v0.1.1.
What can I use instead of Polymarket MCP?
Servers from other publishers that do the same job: CCXT MCP server.

Alternatives to Polymarket MCP

Same job from other publishers: the closest match first, then the best rated.

  • CCXT
    Official CCXT MCP server - Market data and trading across 100+ exchanges and prediction markets
    A