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Live Kalshi + Polymarket prediction-market data and cross-venue arbitrage spreads, one schema.
Bellwether is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 86/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding Bellwether to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
mcp add markets.bellwether/prediction-markets https://api.bellwether.markets/mcpReview the upstream source before running this command.
{
"_meta": {
"io.modelcontextprotocol.registry/official": {
"status": "active",
"isLatest": true,
"updatedAt": "2026-07-03T11:34:42.289159Z",
"publishedAt": "2026-07-03T11:34:42.289159Z",
"statusChangedAt": "2026-07-03T11:34:42.289159Z"
}
},
"server": {
"name": "markets.bellwether/prediction-markets",
"title": "Bellwether",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://api.bellwether.markets/mcp",
"type": "streamable-http",
"headers": [
{
"name": "X-API-Key",
"isSecret": true,
"description": "Optional API key for higher rate limits (anonymous free tier: 120 req/hr)"
}
]
}
],
"version": "0.1.0",
"websiteUrl": "https://bellwether.markets",
"description": "Live Kalshi + Polymarket prediction-market data and cross-venue arbitrage spreads, one schema."
}
}