# app.oddsrail/polymarket-kalshi-arbitrage

> app.oddsrail/polymarket-kalshi-arbitrage — app-oddsrail-polymarket-kalshi-arbitrage. Use this tool when you need to identify arbitrage opportunities across multiple prediction markets, specifically Polymarket and Kalshi. It provides costed and attributed cross-venue market data, helping AI agents capitalize on price discrepancies and optimize trading strategies. By leveraging this tool, agents can make informed decisions and execute profitable trades across different platforms.

Canonical page: https://skillsregistry.net/skills/app-oddsrail-polymarket-kalshi-arbitrage  
JSON: https://api.skillsregistry.net/v1/skills/app-oddsrail-polymarket-kalshi-arbitrage

## Description

Cross-venue prediction markets for AI agents: Polymarket + Kalshi, costed and attributed

## Trust

- **Trust score (0–1):** 0.84
- **Verification tier:** verified
- **Last scanned:** 2026-09-01

## Facts

- **Version:** 0.6.1
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Updated:** 2026-09-26

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/app.oddsrail%2Fpolymarket-kalshi-arbitrage)
- **Repository:** <https://github.com/hmesutozsoy/oddsrail>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "app-oddsrail-polymarket-kalshi-arbitrage"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/app-oddsrail-polymarket-kalshi-arbitrage` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/app-oddsrail-polymarket-kalshi-arbitrage/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt