API integration lets your systems issue and update passes when business events happen.
Authenticate securely
Store API keys server-side. Never embed secrets in mobile apps or public pages.
Core flows
Create a template once, issue passes per customer, update fields on events, and revoke when needed.
Webhooks
Subscribe to install, update, and redemption events to sync with CRM, POS, or data warehouse.
Idempotency and retries
Use idempotent create operations and handle retries for reliable order-to-pass pipelines.
Start in sandbox
Validate JSON payloads and field mappings before high-volume production sends.
See Passinstance API docs for endpoint reference and examples.