{"protocolVersion": "0.3.0", "name": "x402 PayTo Pre-Flight", "description": "x402 PayTo Pre-Flight: verify a payTo address against the live registry before paying. Detects payTo hijacking, stale endpoints and unknown resources. Deterministic, <200ms, no external network. 0.001 USDC via x402 on Base. SYNTHORA.", "url": "https://payto-preflight.hergertsynthora.com/service", "preferredTransport": "HTTP+JSON", "additionalInterfaces": [{"url": "https://payto-preflight.hergertsynthora.com/service", "transport": "HTTP+JSON"}, {"url": "https://payto-preflight.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": "payto_preflight", "name": "payto preflight", "description": "x402 PayTo Pre-Flight: verify a payTo address against the live registry before paying. Detects payTo hijacking, stale endpoints and unknown resources. Deterministic, <200ms, no external network. 0.001 USDC via x402 on Base. SYNTHORA.", "tags": ["payto", "preflight", "x402", "synthora", "m2m", "a2a"], "examples": ["{\"endpoint_url\": \"https://onchain.hergertsynthora.com/service\", \"expected_payTo\": \"0xEf879BFD6C4AccB8F795136de90246e1EC245e06\", \"chain\": \"eip155:8453\"}"], "inputModes": ["application/json"], "outputModes": ["application/json"], "inputSchema": {"type": "object", "properties": {"endpoint_url": {"type": "string", "description": "endpoint resource URL to verify"}, "expected_payTo": {"type": "string", "description": "expected payTo address (0x...)"}, "chain": {"type": "string", "description": "expected chain, e.g. eip155:8453"}}, "required": ["endpoint_url"]}}], "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://payto-preflight.hergertsynthora.com/service"}, "mcp": {"endpoint": "https://payto-preflight.hergertsynthora.com/mcp", "transport": "http-jsonrpc"}}