Reference
Glossary
| Term | Definition |
|---|---|
| API key | Secret (sk_… or legacy) sent as X-API-KEY, or publishable (pk_…) for the JS checkout SDK |
| Chooser | Hosted flow where the customer picks a provider |
| Connector | Payment provider configuration for your merchant |
| Live | Production environment |
| MPGS | Mastercard Payment Gateway Services |
| Native session | Short-lived Bearer token for iOS Apple Pay |
| Profile | Sandbox or Live configuration unit for a merchant |
| Sandbox | Test environment |
| track_id | Primary payment identifier |
| Webhook secret | Signing secret used to verify webhook deliveries |