Wise

Wise Platform API enables international money transfers with transparent pricing and real exchange rates.

API key authentication (Bearer token) with optional Strong Customer Authentication (SCA) using RSA key pairs for sensitive operations. OAuth2 available for bank integrations. Comprehensive sandbox environment at api.sandbox.transferwise.tech. API covers quotes, recipients, transfers, multi-currency accounts, balance statements, and webhooks. No extra fees or premium subscriptions for API usage. Postman collection available. 10-year API token lifetime. Supports mutual TLS (mTLS) for enhanced security.

Ideal for cross-border payments, automated payouts, business banking integrations, and fintech applications requiring transparent FX services.