Platform Infrastructure

Webhooks That Stay Reliable Under Failure

Subscribe to platform events through a delivery model built for timeout realities, replay pressure, and security-sensitive state transitions.

Docs
  • 01Signature verification
  • 02Retry discipline
  • 03Safe replay tooling

Operating pillars

4

Capability layers rendered with explicit operational behavior.

Visual center

Control plane

Tenant-aware orchestration with explicit states, traces, and policy boundaries.

Runtime model

Deterministic

Replay-safe money and identity workflows under retry pressure.

Control boundary

Tenant-scoped

Isolation across authorization, data access, and operator actions.

Operating model

Financial events are signed, delivered, retried, replayed, and reviewed with delivery history intact.

Entrypoint

POST /webhook-endpoints

01Subscribe

Register endpoint

Teams choose events, signing secrets, and delivery policy.

02Sign

Seal payload

Every delivery carries signature and timestamp data for verification.

03Deliver

Send event attempt

Timeouts and status codes are captured as delivery state.

04Retry

Resolve failure

Retries and replay tooling prevent blind reprocessing.

05Review

Inspect event trail

Operators see endpoint health, attempt count, payload, and final outcome.

Events emitted

webhook.endpoint.created
event.delivery.queued
event.delivery.failed
event.delivery.succeeded

Evidence retained

event_id
signature
attempt_count
endpoint_status
replay_id
Failure path proof

Event delivery has an operating trail.

Signatures, retries, endpoint health, replay tooling, and delivery outcomes are part of the product surface.

01

Consumer timeout

Incident

A customer endpoint fails to respond during a settlement event delivery.

Zentra path

The attempt is recorded, retried under policy, and exposed for replay review.

Evidence

Event ID, endpoint, status code, attempt count, and replay ID are retained.

02

Signature dispute

Incident

A customer reports an event that their consumer cannot verify.

Zentra path

The delivery trail keeps timestamp, signature posture, and payload identity visible.

Evidence

Signing secret version, event ID, timestamp, payload hash, and endpoint are retained.

Lifecycle proof

From API request to operational evidence.

This page makes the runtime visible: POST /webhook-endpoints, the state path, emitted events, and evidence a team can inspect when the happy path breaks.

Get Started
Docs
Book Architecture Review

API request

live

await zentra.runtime.intents.create({

intent_id: "intent_042",

scope: "workspace_scope",

money_model: "minor_units + ledger_currency",

primitives: ["policy", "ledger", "events"]

})

intent accepted
workspace scope resolved
runtime trace attached

Runtime state machine

01Accept intentruntime contractaccepted
02Resolve controlsscope + policycontrolled
03Post ledger stateminor-unit entriesledgered
04Select routecorridor contextrouted
05Sync eventssigned streamsynchronized
06Seal evidenceactor + scope + timeevidenced

Ledger entries

debitcustomer_balance-125000 mu
creditreserved_balance+125000 mu
debitreserved_balance-125000 mu
creditsettlement_account+125000 mu

Audit evidence

actorsvc_runtime
scopeworkspace_scope
policylimit_check.passed
signatureverified
Capability model

Operational building blocks, not vague feature claims.

Each pillar below maps product capability to runtime behavior teams can reason about before launch.

01

Signature verification

Authenticate callbacks before any business logic or state mutation occurs.

02

Retry and dead-letter handling

Recover from downstream failures through explicit retry and fallback lanes.

03

Replay-safe consumers

Prevent duplicate side effects through idempotent event processing.

04

Delivery observability

Track event outcomes and diagnose failures without blind spots.

Visual center

Control plane

Tenant-aware orchestration with explicit states, traces, and policy boundaries.

  • Keep signature verification deterministic under retries, delays, and asynchronous callbacks.
  • Expose state transitions and error semantics clearly enough for operators and integrators to act.
  • Capture audit events with tenant and actor attribution for regulated review workflows.

API to product

The integration should create visible state.

A buyer should see the first call, the system response, the webhook behavior, and the ledger/audit consequence without leaving the product page.

register webhook endpoint

await zentra.webhooks.endpoints.create({
  url: "https://example.com/zentra/webhooks",
  events: ["transfer.settled"],
  signing_secret: "whsec_live"
})

System response

status

listening

event

webhook.endpoint.created

evidence

event_id

entrypoint

POST /webhook-endpoints

The first integration proof should show POST /webhook-endpoints, emitted events, retained evidence, and visible product state.

Webhook replay

01timeoutevent webhook.endpoint.createdretained
02signature verifiedevent webhook.endpoint.createdretrying
03deliveredevent webhook.endpoint.createdresolved

Result: one ledger-safe state transition

Delivery state remains visible without creating duplicate financial state.

Ledger flow

account

Customer

-125000 mu

account

Reserved

+125000 mu

account

Settlement

+125000 mu

account

Merchant

+125000 mu

account

Payout

closed

Operational proof

Evidence that the capability behaves correctly when production gets noisy.

The proof points below are written to be checked by operators, solution engineers, and compliance teams, not just admired in a brand presentation.

Docs

Webhook services expose signature, retry, replay, and delivery-log primitives directly.

Consumer architecture is designed for timeout and retry realities in distributed systems.

Operational controls support safe replay and post-incident review without hidden state.

Trust layer

Audit evidence travels with the capability.

Every primitive page needs proof that state, actor, tenant, signature, and policy context remain reviewable after the happy path breaks.

Trust evidence

The proof stays attached to the runtime state.

actorsvc_runtime
scopeworkspace_scope
timestamp2026-04-26T14:12:09Z
policylimit_check.passed
intentintent_042
signatureverified
ledgerentry_042
statusaudit_ready