Start without a sales call
Create a scoped key and send a message from the playground in a minute.
Everything You Need
On Day One.
The API, the webhooks and the playground are part of the plan, not an enterprise upgrade. Scoped keys, HMAC signatures, retries with a dead letter queue, and logs you can actually read.
REST with code samplesHMAC signed webhooksScoped keysPlayground and logs
Debug without guessing
Delivery logs, per key request logs and replayable events.
Integrate properly
Webhooks for every event that matters, with signatures and retries.
Reference
The endpoints and events you will use most
Messages, contacts, templates, campaigns, conversations and calls each have a documented endpoint with request and response samples. Rate limits are published and returned as headers.
Webhooks cover inbound messages, delivery states, calls, template status, contact updates and campaign progress, each HMAC signed, retried with backoff and replayable from the dashboard.
- POST /v1/messages for text, media and templates
- Contacts and segments as first class resources
- Campaign trigger and progress endpoints
- 18 webhook event types with replay
Playground200 OK · 128ms
EndpointMethodState
/v1/messagesPOST200
/v1/contactsGET200
/v1/campaignsPOST202
/v1/webhooks/replayPOSTqueued
Rate limit 600/min · 12,480 events today18 events
How it works
From zero to live,
in four steps.
01Create a scoped keyChoose scopes. The secret is shown once.
02Send a test requestFrom the playground, then copy the code sample.
03Register a webhookAdd the endpoint, verify the HMAC signature.
04Go to productionWatch the delivery log and the rate limit headers.
What is inside,
in detail.
API reference
Every endpoint with request and response samples.
Webhook guide
Signature verification, retries and replay.
Scoped keys
Least privilege keys with per key request logs.
Playground
Run real requests from the dashboard.
Rate limits
Published limits, returned as response headers.
Status
Uptime and incident history for the platform.
Where rivals say no
The same feature,
across four platforms.
FeatureWBIZWATIInteraktAiSensy
API included on the standard planHigher tierHigher tierHigher tier
HMAC signed webhooksPartialPartial—
Event replay from the dashboard———
In app playground———
Published rate limitsPartialPartial—
Competitor entries are indicative, from public 2026 pages. See the full 89-row benchmark.
Yes, automations and API requests can be tested against a sandbox before you touch production traffic.
Compute an HMAC over the raw body with your endpoint secret and compare it with the signature header.
Published per plan and returned as headers on every response, so you can back off cleanly.
The API is plain REST with code samples. Any HTTP client works, no SDK required.
Yes, individually or in bulk, from the delivery log.
Explore more
The rest of the platform
Developer API
The product page with the full picture.
See the APISecurity
Encryption, key handling and access control.
See securityPricing
What is included on each plan.
See pricingSend your first API request today
Start free, create a scoped key, and fire a message from the playground.