markets.bellwether/prediction-markets

up checked 2026-11-11T15:38:03.616Z

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Publisher-provided title

Bellwether

Publisher-provided description

Live Kalshi + Polymarket prediction-market data and cross-venue arbitrage spreads, one schema.

Summary by lookupd

Lets an agent query live Kalshi and Polymarket prediction markets and compare cross-venue YES price spreads.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http prediction-markets https://api.bellwether.markets/mcp

Codex, remote (streamable-http)

codex mcp add prediction-markets --url https://api.bellwether.markets/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "prediction-markets": {
      "url": "https://api.bellwether.markets/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (3 tools)

Publisher-provided text

• list_markets List open prediction markets across Kalshi and Polymarket (normalized).
• get_market Get one normalized market. venue is 'kalshi' or 'polymarket'.
• matching_markets Find the same real-world event on both venues, with the YES price spread.

Details

• Version: 0.1.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 912 ms
• First indexed: 2026-11-01T10:07:21.459Z
• Last seen in registry: 2026-11-01T10:07:21.459Z
• Website: https://bellwether.markets

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