{"protocolVersion": "0.3.0", "name": "Validate any IBAN deterministically", "description": "Validate any IBAN deterministically: ISO 13616 mod-97 checksum, country + length registry check, BBAN and bank-code extraction, canonical formatting. Zero external dependencies, no hallucination, always available. Use it to validate a bank account before initiating a SEPA/international payment. Ed25519-signed. 0.001 USDC on Base. First 3 calls FREE per wallet — send header X-WALLET: 0x<your Base address> (no payment); then  per call.", "url": "https://ibancheck.hergertsynthora.com/service", "preferredTransport": "HTTP+JSON", "additionalInterfaces": [{"url": "https://ibancheck.hergertsynthora.com/service", "transport": "HTTP+JSON"}, {"url": "https://ibancheck.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": "ibancheck", "name": "ibancheck", "description": "Validate any IBAN deterministically: ISO 13616 mod-97 checksum, country + length registry check, BBAN and bank-code extraction, canonical formatting. Zero external dependencies, no hallucination, always available. Use it to validate a bank account before initiating a SEPA/international payment. Ed25519-signed. 0.001 USDC on Base. First 3 calls FREE per wallet — send header X-WALLET: 0x<your Base address> (no payment); then  per call.", "tags": ["ibancheck", "x402", "synthora", "m2m", "a2a"], "examples": ["{\"iban\": \"GB82 WEST 1234 5698 7654 32\"}"], "inputModes": ["application/json"], "outputModes": ["application/json"], "inputSchema": {"type": "object", "properties": {"iban": {"type": "string", "description": "IBAN to validate (spaces optional)"}}, "required": ["iban"]}}], "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://ibancheck.hergertsynthora.com/service"}, "mcp": {"endpoint": "https://ibancheck.hergertsynthora.com/mcp", "transport": "http-jsonrpc"}}