{"protocolVersion": "0.3.0", "name": "DeFi market-data feed", "description": "DeFi market-data feed: perp open interest, funding rate, mark price and a directional signal across top assets (BTC/ETH/SOL/…), plus optional per-asset verdict. Deterministic, Ed25519-signed. 0.002 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); after that  per call.", "url": "https://defidata.hergertsynthora.com/service", "preferredTransport": "HTTP+JSON", "additionalInterfaces": [{"url": "https://defidata.hergertsynthora.com/service", "transport": "HTTP+JSON"}, {"url": "https://defidata.hergertsynthora.com/a2a", "transport": "JSONRPC"}], "version": "1.0.0", "provider": {"organization": "HERGERT SYNTHORA", "url": "https://hergertsynthora.com"}, "capabilities": {"streaming": false, "pushNotifications": false, "stateTransitionHistory": false}, "defaultInputModes": ["application/json"], "defaultOutputModes": ["application/json"], "skills": [{"id": "defidata", "name": "defidata", "description": "DeFi market-data feed: perp open interest, funding rate, mark price and a directional signal across top assets (BTC/ETH/SOL/…), plus optional per-asset verdict. Deterministic, Ed25519-signed. 0.002 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); after that  per call.", "tags": ["defidata", "x402", "synthora", "m2m", "a2a"], "examples": ["{\"slug\": \"defi-data\", \"limit\": 5}"], "inputModes": ["application/json"], "outputModes": ["application/json"], "inputSchema": {"type": "object", "properties": {"slug": {"type": "string", "description": "Use defi-data for the top-assets feed"}, "asset": {"type": "string", "description": "Ticker for single-asset detail, e.g. BTC"}, "limit": {"type": "integer", "description": "Feed size (default all top assets)"}}}}], "securitySchemes": {"x402": {"type": "http", "scheme": "x402", "description": "HTTP 402 micropayment. 1000 atomic USDC on eip155:8453."}}, "security": [{"x402": []}], "x402": {"network": "eip155:8453", "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "amount": "1000", "payTo": "0x10800a5a5B9d72251566EC651E862A8b4B427dE0", "resource": "https://defidata.hergertsynthora.com/service"}, "mcp": {"endpoint": "https://defidata.hergertsynthora.com/mcp", "transport": "http-jsonrpc"}}