Access Point Provider API
Validate, submit, transmit, and report invoices directly to FIRS, and confirm or download previously submitted invoices. This surface is primarily used by the platform's own submission pipeline, but is documented here for integrators who need to drive FIRS submission themselves.
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Base path: /v1/app
All invoice endpoints require an x-api-key header — either a Taxpayer (tpk_) or
System Integrator (sik_) key, see Authentication.
The webhook receiver (
POST /v1/app/webhook/notify) is unauthenticated by design — it's the inbound
endpoint FIRS calls to notify this platform of status changes, not an endpoint you call.
Responses follow the shared envelope described in Errors & Response Format.
