app.oddsrail/polymarket-kalshi-arbitrage

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

Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "polymarket-kalshi-arbitrage": {
      "command": "uvx",
      "args": [
        "oddsrail"
      ],
      "env": {
        "POLYMARKET_PRIVATE_KEY": "<your POLYMARKET_PRIVATE_KEY>"
      }
    }
  }
}

Environment variables

POLYMARKET_PRIVATE_KEYsecretoperator wallet key; only needed for real trading

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category: AI & ML
Version: 0.10.0
Registry: deprecated
Published: 9/2/2026

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Add the badge to your site

Show visitors that app.oddsrail/polymarket-kalshi-arbitrage is listed here — it’s also the link we check for a free listing.

HTML — for your website

<a href="https://serverdex.io/server/app-oddsrail-polymarket-kalshi-arbitrage?utm_source=badge"><img src="https://serverdex.io/brand/badge.svg" alt="app.oddsrail/polymarket-kalshi-arbitrage — listed on Serverdex" width="123" height="40" loading="lazy"></a>

Recommended. A dofollow link from your own domain is the one that counts for search engines, and it's the link we check for a free listing.

Markdown — for your README

[![app.oddsrail/polymarket-kalshi-arbitrage — listed on Serverdex](https://serverdex.io/brand/badge.svg)](https://serverdex.io/server/app-oddsrail-polymarket-kalshi-arbitrage?utm_source=badge)

Nice for visibility, but GitHub marks README links nofollow, so it doesn't pass authority. Use the HTML badge on your site as well.