{"protocolVersion": "0.3.0", "name": "Top prediction markets from Polymarket + Kalshi", "description": "Top prediction markets from Polymarket + Kalshi: implied probability, bid-ask spread, liquidity, volume and freshness seal. Essential feed for autonomous trading, political-risk and allocation agents. $0.001 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.", "url": "https://prediction-markets.hergertsynthora.com/service", "preferredTransport": "HTTP+JSON", "additionalInterfaces": [{"url": "https://prediction-markets.hergertsynthora.com/service", "transport": "HTTP+JSON"}, {"url": "https://prediction-markets.hergertsynthora.com/a2a", "transport": "JSONRPC"}], "version": "1.0.0", "provider": {"organization": "SYNTHORA", "url": "https://hergertsynthora.com"}, "capabilities": {"streaming": false, "pushNotifications": false, "stateTransitionHistory": false}, "defaultInputModes": ["application/json"], "defaultOutputModes": ["application/json"], "skills": [{"id": "prediction_markets", "name": "prediction markets", "description": "Top prediction markets from Polymarket + Kalshi: implied probability, bid-ask spread, liquidity, volume and freshness seal. Essential feed for autonomous trading, political-risk and allocation agents. $0.001 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.", "tags": ["prediction", "markets", "x402", "synthora", "m2m", "a2a"], "examples": ["{\"limit\": 10, \"source\": \"all\", \"min_liquidity\": 1000}"], "inputModes": ["application/json"], "outputModes": ["application/json"], "inputSchema": {"type": "object", "properties": {"limit": {"type": "integer", "description": "max markets to return (1-50, default 10)"}, "source": {"type": "string", "enum": ["all", "polymarket", "kalshi"], "description": "exchange filter"}, "min_liquidity": {"type": "number", "description": "minimum liquidity in USD (default 1000)"}}, "required": []}}], "securitySchemes": {"x402": {"type": "http", "scheme": "x402", "description": "HTTP 402 micropayment. 10000 atomic USDC on eip155:8453."}}, "security": [{"x402": []}], "x402": {"network": "eip155:8453", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "10000", "payTo": "0xEf879BFD6C4AccB8F795136de90246e1EC245e06", "resource": "https://prediction-markets.hergertsynthora.com/service"}, "mcp": {"endpoint": "https://prediction-markets.hergertsynthora.com/mcp", "transport": "http-jsonrpc"}}