Bellwether MCP Server
Bellwether is answering right now. Last checked 6 min ago. It exposes 3 tools.
Live Kalshi + Polymarket prediction-market data and cross-venue arbitrage spreads, one schema.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 6 min ago.
claude mcp add prediction-markets --transport http https://api.bellwether.markets/mcp{
"mcpServers": {
"prediction-markets": {
"url": "https://api.bellwether.markets/mcp"
}
}
}[mcp_servers.prediction-markets]
url = "https://api.bellwether.markets/mcp"{
"mcpServers": {
"prediction-markets": {
"url": "https://api.bellwether.markets/mcp"
}
}
}{
"mcpServers": {
"prediction-markets": {
"url": "https://api.bellwether.markets/mcp"
}
}
}Available tools 3
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
get_market
list_markets
matching_markets
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://api.bellwether.markets/mcp | streamable-http | answering | 150 ms | 6 min ago |
Alternatives to Bellwether
same job, measured the same waymarket-spread MCP — cross-venue prediction-market landscape scanner.
Live prediction market data from Polymarket and Kalshi with VWAP pricing and reportability.
Cross-venue Polymarket+Kalshi arbitrage: resolution mismatch, void risk & settlement divergence.
Live prediction markets: Polymarket + Kalshi prices, odds, order books. Pay-per-call USDC, no key.
Real-time Polymarket and Kalshi data, cross-platform arb detection, strategy signals
Cross-venue prediction market routing for AI agents with arbitrage, quotes, history, and signals.
Read-only Polymarket prediction market data for AI agents.
Sealed prediction-market verdicts, graded in public across Polymarket and Kalshi. No auth required.
Bellwether — questions
Answers built from our own checks of this server.