{"tool":"e164-check","title":"E.164 phone check","description":"Validate a phone number's E.164 structure (+CC, 8-15 digits, no leading zero).","method":"POST","call":"/v1/tools/e164-check/call","input_schema":{"type":"object","required":["phone"],"properties":{"phone":{"type":"string","description":"International phone number, e.g. +14155552671."}}},"output_schema":{"type":"object","properties":{"tool":{"type":"string"},"valid":{"type":"boolean"},"normalized":{"type":"string"},"country":{"type":"string"},"reason":{"type":"string"},"scope":{"type":"string"}},"required":["valid","reason"]},"price_usdc_floor":0.000999,"price_note":"dynamic-dutch: live quote via GET /health or the 402 challenge on POST without payment","example_request":{"input":{"phone":"+14155552671"}},"docs":"https://rail.akrivis.in/openapi.json","mcp":"https://rail.akrivis.in/mcp"}