Authenticate
Send secure requests using credentials assigned to your approved merchant environment.
Developer platformOne integration.
One integration.
Multiple local markets.
Build pay-in and payout flows through a focused REST API, stable order states and webhook-driven updates designed for operational clarity.
REST APIConsistent resource model
WebhooksAsynchronous status updates
Sandbox-ledTest before production review
Integration principles
Simple technical primitives for complex local rails.
Each market may behave differently behind the scenes. PAYJN gives your engineering team a consistent set of concepts for creating orders, receiving payment instructions, processing status events and reconciling outcomes.
AuthenticationMerchant credentials and secure request authentication provided during onboarding.
ReliabilityIdempotent creation patterns, stable identifiers and explicit terminal states.
SupportTechnical onboarding and operations escalation through an assigned contact path.
Order lifecycle
Predictable from request to final state.
Create
Submit amount, currency, market, method and your unique merchant order reference.
Listen
Receive signed webhook notifications as processing status changes.
Reconcile
Use PAYJN and merchant identifiers to match orders and investigate exceptions.
Built for production teams
Controls your engineers and operators expect.
Idempotent requests
Use merchant references and documented retry patterns to reduce duplicate-processing risk.
Webhook signatures
Verify event authenticity and process asynchronous payment updates safely.
Traceable identifiers
Carry stable references from your product through provider escalation and reconciliation.
Detailed endpoint documentation, credentials and sandbox access are supplied to approved merchants during onboarding. Public examples describe the integration model and are not production credentials.
Start integrating
Request technical onboarding →Bring your technical team into the conversation.
We will align target markets, methods, event handling and launch requirements before production access.