Polymarket MCP Server

Polymarket MCP server enabling AI agents to interact with Polymarket's prediction markets — fetching current market prices and odds, retrieving market questions and conditions, accessing historical market data, and integrating Polymarket's crowd-sourced probability estimates into agent-driven forecasting and decision analysis workflows.

Evaluated Mar 06, 2026 (0d ago) vcurrent
Homepage ↗ Repo ↗ Finance polymarket prediction-market mcp-server crypto forecasting markets
⚙ Agent Friendliness
66
/ 100
Can an agent use this?
🔒 Security
74
/ 100
Is it safe for agents?
⚡ Reliability
60
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
62
Documentation
65
Error Messages
60
Auth Simplicity
85
Rate Limits
65

🔒 Security

TLS Enforcement
100
Auth Strength
68
Scope Granularity
62
Dep. Hygiene
62
Secret Handling
78

HTTPS enforced. No auth for public data. Community MCP. Jurisdiction compliance required.

⚡ Reliability

Uptime/SLA
65
Version Stability
60
Breaking Changes
58
Error Recovery
58
AF Security Reliability

Best When

An agent needs access to crowd-sourced probability estimates from Polymarket for forecasting, political analysis, or event probability assessment.

Avoid When

You need traditional financial market data, or operate in jurisdictions where prediction market data access is restricted.

Use Cases

  • Fetching prediction market odds from forecasting and analysis agents
  • Querying election and event market prices from political analysis agents
  • Accessing crypto/DeFi market sentiment from trading analysis agents
  • Building forecasting tools with crowdsourced probability data from research agents
  • Monitoring market-implied probabilities for risk assessment from analysis agents
  • Integrating prediction market signals into AI-driven decision frameworks

Not For

  • Placing bets or trading on Polymarket (data access primarily, check repo for trading features)
  • Teams in jurisdictions where prediction markets are restricted
  • Real-time price feeds requiring sub-second latency

Interface

REST API
Yes
GraphQL
No
gRPC
No
MCP Server
Yes
SDK
No
Webhooks
No

Authentication

Methods: none
OAuth: No Scopes: No

Polymarket public API may not require authentication for read operations. Trading requires CLOB API key and crypto wallet. Check repository for current auth requirements.

Pricing

Model: free
Free tier: Yes
Requires CC: No

Polymarket market data API is free. MCP server is free open source. Trading on platform requires USDC cryptocurrency.

Agent Metadata

Pagination
cursor
Idempotent
Full
Retry Guidance
Not documented

Known Gotchas

  • Polymarket availability restricted in some jurisdictions — check local regulations
  • Community MCP from individual developer — limited maintenance
  • Market IDs and conditions change frequently — hardcoded IDs will break
  • Prediction market data is probabilistic — agents must interpret odds correctly
  • Liquidity varies significantly across markets — low-liquidity markets may be noisy
  • API pagination required for full market lists

Alternatives

Full Evaluation Report

Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for Polymarket MCP Server.

$99

Scores are editorial opinions as of 2026-03-06.

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Packages Evaluated
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Need Evaluation
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