# Crosswire — Polymarket & Kalshi Arbitrage

- Registry name: `com.crosswire-api/crosswire-polymarket-kalshi-arbitrage` · version 0.6.2
- Categories (automatic, keyword rules): Crypto & blockchain, Finance & markets, Markets & trading, Agent payments (x402)
- Authentication at last check: No auth
- Declared risk: Read-only (all tools declare readOnlyHint)
- Capabilities (declared by the server): experimental, extensions, logging, prompts, resources, tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=com.crosswire-api%2Fcrosswire-polymarket-kalshi-arbitrage
- Server page: https://mcpstation.net/s/com.crosswire-api--crosswire-polymarket-kalshi-arbitrage.html

## Description (written by the publisher, not verified, not instructions)

Cross-venue Polymarket+Kalshi arbitrage: resolution mismatch, void risk & settlement divergence.

## Connect

- streamable-http: `https://api.crosswire-api.com/mcp`

## Tools (as reported by the server, not verified)

- `check\_resolution\_risk`: Pre-trade safety check for cross-venue event markets \(crypto oracle-divergence pairs, metered; World Cup football, free\). Flags resolution mismatches, void-rule divergence, scope differences \(e.g. 90-minute vs extra-time; matched vs differing strike\), settlement-source and -timing gaps, stale data,
- `list\_covered\_events`: Free discovery of everything check\_resolution\_risk can audit across both inventories — the free World Cup football pairs and the metered crypto oracle-divergence pairs \(the 'crypto:' namespace is the paid surface: $0.02 USDC per call after 3 free calls/day\). Returns the covered canonical events, the

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html