Real-Time Event Delivery

Webhook Engine

Push every platform event — message delivered, call ended, payment completed, campaign triggered — to any HTTP endpoint the instant it happens, with sub-100ms dispatch, automatic retries, and full delivery observability.

Sub-100ms dispatchAutomatic retriesHMAC-signed payloads

WALOOP Webhook Engine

LIVE · EVENT STREAM

Live
0ms

Avg Dispatch Latency

0%

Delivery Success Rate

Live Event Stream

message.delivered → WhatsApp

endpoint: /hooks/messages

62ms

call.ended → Voice

endpoint: /hooks/calls

78ms

payment.completed → Billing

endpoint: /hooks/payments

91ms
Understanding Webhook Engine

What is the WALOOP Webhook Engine?

The Webhook Engine is a real-time event delivery system that listens for every event across WhatsApp, SMS, RCS, Voice, and Payments, and pushes it to the HTTP endpoints you configure — instantly, reliably, and with cryptographic proof of origin.

Sub-100ms Dispatch

Events are captured and pushed to your endpoint in under 100 milliseconds on average, so your systems stay in sync in real time.

Intelligent Retries

Failed deliveries are retried automatically on an exponential backoff schedule, with no manual intervention required.

Dead-Letter Queues

Events that exhaust every retry attempt land in a dead-letter queue instead of vanishing, ready for inspection or replay.

HMAC-Signed Payloads

Every request is signed with HMAC-SHA256 so your endpoint can verify it genuinely came from WALOOP before processing it.

Granular Event Filtering

Subscribe to exactly the event types you care about — down to a single event name per endpoint — and ignore the rest.

Fan-Out Delivery

Route a single event to multiple endpoints simultaneously, so billing, analytics, and CRM systems all stay current together.

Full Observability

Watch every dispatch in a live event stream, inspect historical logs, and track P50/P95/P99 latency in one dashboard.

Deploy Your Way

Integrate over our managed REST API or self-host the dispatcher on your own Docker or Kubernetes infrastructure.

Platform Features

Everything your event pipeline needs

A production-grade delivery layer for every event your platform generates, built for engineering teams who need reliability by default.

Real-Time Dispatch

Events fire the moment they occur, with average end-to-end dispatch latency under 100ms across regions.

<100ms · Real-Time · Low Latency

Exponential Backoff Retries

Delivery failures are retried on an increasing backoff schedule, protecting your endpoint from retry storms during downtime.

Backoff · Auto-Retry · Resilient

Dead-Letter Queues

Undeliverable events are captured in a durable queue rather than dropped, so nothing is lost during an outage.

DLQ · No Data Loss · Durable

One-Click Event Replay

Resend any historical event — or an entire failed batch — to a live or newly fixed endpoint in a single click.

Replay · Batch Resend · Debug

HMAC-SHA256 Signing

Every payload is signed with a per-endpoint secret so you can verify authenticity before trusting the request.

HMAC-SHA256 · Signed · Verified

IP Allowlisting

Restrict inbound configuration and outbound dispatch to approved IP ranges for an added layer of network security.

Allowlist · Network Security · Access Control

Granular Subscriptions

Subscribe each endpoint to precise event types like message.delivered or rcs.read instead of receiving a firehose.

Event Types · Subscriptions · Precise

Multi-Endpoint Fan-Out

Deliver the same event to unlimited destinations in parallel, keeping every downstream system consistent.

Fan-Out · Parallel · Multi-Target

Live Event Stream

Watch events dispatch in real time from a live console, filterable by event type, endpoint, or delivery status.

Live View · Streaming · Console

Latency & Delivery Analytics

Track P50, P95, and P99 delivery latency alongside success and failure rates for every endpoint.

P50/P95/P99 · Analytics · SLA

Historical Delivery Logs

Every attempt, response code, and payload is logged and searchable, giving you a full audit trail on demand.

Audit Trail · Searchable · Logs

Self-Hosted Option

Run the dispatcher inside your own VPC with our Docker image or Kubernetes Helm chart for full data residency control.

Docker · Kubernetes · Self-Hosted

How It Works

From platform event to your endpoint in five steps

Every event travels the same reliable path, from the moment it happens to a confirmed, logged delivery.

//01

Event Occurs

A platform action fires an event — a message is delivered, a call ends, a payment completes.

//02

Matched to Subscriptions

The engine checks which endpoints are subscribed to that event type and prepares each payload.

//03

Signed and Dispatched

Each payload is signed with HMAC-SHA256 and pushed to every matching endpoint in parallel, in under 100ms.

//04

Delivery Confirmed or Retried

A 2xx response marks the event delivered; anything else triggers an exponential-backoff retry automatically.

//05

Logged and Replayable

The full attempt history is logged and visible in your dashboard, with one-click replay available at any time.

Built For

Built for every event-driven team

The Webhook Engine adapts to how each type of platform actually consumes real-time data.

E-commerce

Sync order confirmations, delivery updates, and payment events straight into your storefront and OMS in real time.

BFSI

Stream transaction and notification status into core banking and compliance systems with signed, auditable delivery.

SaaS Platforms

Give your customers real-time event feeds for the messaging and calling activity happening inside your product.

Logistics

Push delivery, dispatch, and shipment status events into fleet and warehouse systems the moment they happen.

Real Estate

Trigger lead-routing and follow-up workflows the instant a call ends or a message is read.

Healthcare

Feed appointment and communication events into patient systems with signed, verifiable delivery.

EdTech

Keep enrollment and communication platforms current with real-time student engagement events.

Marketing & CDPs

Stream campaign.triggered and engagement events directly into your customer data platform for instant segmentation.

Developer Platforms

Give internal and partner teams a single, reliable event bus instead of building custom polling for every integration.

Benefits

Why engineering teams standardize on it

Real-Time by Default

Sub-100ms dispatch keeps downstream systems in sync without polling.

Nothing Gets Lost

Exponential backoff and dead-letter queues guarantee every event is delivered or captured.

Verifiable and Secure

HMAC-SHA256 signing and IP allowlisting keep every payload authenticated and trusted.

Precise Event Control

Granular subscriptions mean endpoints only receive the events they actually need.

Scales to Any Architecture

Fan-out delivery keeps unlimited downstream systems consistent from a single event.

Total Visibility

Live streams, historical logs, and latency percentiles remove the guesswork from debugging.

Fast Incident Recovery

One-click replay gets a downed endpoint back in sync in seconds, not hours.

Deployment Flexibility

Use the managed REST API or self-host on Docker and Kubernetes to meet any compliance need.

Integrations

Fits directly into your stack

REST API

Register endpoints, manage subscriptions, and query delivery logs programmatically.

Docker

Run the self-hosted dispatcher as a container inside your own infrastructure.

Kubernetes

Deploy and scale the dispatcher with our official Helm chart for high-availability clusters.

Data Warehouses

Stream delivery logs and event history into your warehouse for long-term analysis.

Slack

Get real-time alerts for delivery failures and dead-letter events posted to your team channel.

CI/CD Pipelines

Trigger deployment and workflow automation directly from platform events.

CRM

Push message, call, and campaign events into HubSpot, Salesforce, or Zoho as they happen.

Observability Tools

Export latency and delivery metrics to your existing monitoring and alerting stack.

FAQ

Frequently Asked Questions

Everything engineering teams ask before wiring up the WALOOP Webhook Engine.

Any platform event, including message.delivered, sms.sent, call.ended, rcs.read, payment.completed, and campaign.triggered, along with every other event WALOOP emits across channels.

Ready to Deliver Events in Real Time?

Wire up the WALOOP Webhook Engine to push every message, call, and payment event to your systems the instant it happens — with retries, signing, and full observability built in.