Getting started
Environments
Two isolated environments — sandbox and production.
Each environment has its own keys, ledger, and webhook delivery. Test keys never reach real provider rails — they hit the sandbox cascade and return deterministic responses.
Sandbox
Base URL
https://sandbox-api.key2pays.com/v1Key prefix
sk_test_… / pk_test_…- Deterministic test cards & SPEI references (see Test data).
- Free of charge. No real money movement.
- Webhook signatures use the per-merchant test webhook secret.
Production
Base URL
https://api.key2pays.com/v1Key prefix
sk_live_… / pk_live_…- Real provider cascade and crypto settlement.
- Rate-limited per merchant — see the Rate limits section.
- All requests must use TLS 1.2 or newer.
Currently active in this docs site: sandbox. Toggle the environment in the top navigation to swap base URLs and key examples across every page.