Polymarket MCP Server

Item: Polymarket MCP Server
Rating: 39
Author: M8ven

Enables AI agents to browse, search, and trade on Polymarket prediction markets, including viewing markets, order books, balances, and placing/canceling orders.

→ unsanction/mcp-polymarket · listed on glama

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// key findings

⚠️

Tool descriptions don’t match what handlers do

1 tool describes read intent but its handler mutates — polymarket_get_news (line 44: itemRegex.exec(xml))

🚨

Known vulnerabilities in dependencies: 1 critical, 2 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

⚠️

Tests do not pass

Either the test suite is broken or the code regressed. Either way the published behaviour can’t be verified by the publisher’s own tests.

// known CVEs in dependencies1 critical2 high1 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

criticalvitest@4.0.18GHSA-5xrq-8626-4rwp

When Vitest UI server is listening, arbitrary file can be read and executed

high@modelcontextprotocol/sdk@1.0.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.0.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

lowzod@3.22.0GHSA-m95q-7qp3-xv42

Zod denial of service vulnerability

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// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 12 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/unsanction-mcp-polymarket-13nlmz)](https://m8ven.ai/mcp/unsanction-mcp-polymarket-13nlmz)

commit: 8966fbdf2c25f9d7e39d0d252c2424ca7a86c9f0

code hash: 301a5ac7a9b18f5ef66a20100b21a829378a9839952bccce340f6a1e21f9ba2b

verified: 6/22/2026, 1:31:16 PM

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