{"service":"ISO 20022 Banking API","version":"1.0.0","endpoints":["GET /health - Health check","POST /api/v1/pain.001 - Generate pain.001 message (Customer Payment Instruction)","POST /api/v1/pacs.008 - Generate pacs.008 message (Interbank Payment)","POST /api/v1/pacs.002 - Generate pacs.002 message (Status Report)","POST /api/v1/camt.054 - Generate camt.054 message (Account Notification)","POST /api/v1/mt199 - Generate MT199 message (Free Format Message)","GET /api/v1/status/{transactionId} - Get transaction status"],"security":{"mTLS":"Required for all API endpoints","headers":["X-Client-Cert"]},"compliance":{"validation":"IBAN, BIC, amount, currency","statusTracking":"CREATED, VALIDATED, APPROVED, SENT, ACK, PENDING, ACCEPTED, SETTLED, REJECTED, RETURNED"}}