Status

Public /v1 and console HTTP. Liveness is GET /live. Readiness is GET /ready (database, and Redis unless inline queues).

This Next.js console. It does not invent availability percentages. If you can load this page, the web process is up.

Submit path: validate → reserve → queue → provider. HTTP 200 from a provider is acceptance, not delivery.

Delivery reports arrive on provider webhook routes and update the message state machine. Late SUBMITTED cannot downgrade DELIVERED.

Customer callbacks are signed t=timestamp,v1=hex and retried on a fixed schedule. At-least-once; dedupe by event id.