Developers · REST API

A first-class API
for WhatsApp messaging.

Send OTPs, order confirmations, shipping updates and broadcasts from your existing CRM, ERP or e-commerce store — through a single REST endpoint. Webhooks for everything coming the other way.

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v1 · in development OpenAPI 3.1 Sandbox at launch

Send a message

One endpoint, every WhatsApp message type.

Templates, freeform replies, media, interactive buttons, list messages, location, contacts. Idempotent by default — safe to retry.

POST /v1/messages — send anything
Idempotency-Key header for safe retries
Per-key rate limits and quotas
Delivery receipts & read receipts
SDKs planned for Node, Python and PHP

 Node cURL Python 
// Send a templated order confirmation import { Rabtello } from "@rabtello/sdk";
const client = new Rabtello({
  apiKey: process.env.RABTELLO_KEY,
});
await client.messages.send({
  to: "+971501234567",
  template: "order_confirmed",
  vars: {
    order: "#4821",
    eta: "Tue 12 May",
    total: "AED 899",
  },
  idempotencyKey: "ord-4821-confirm",
});

 POST /webhooks/your-endpoint 
// Inbound message webhook payload
{
"event": "message.received",
"id": "msg_01HM...",
"from": "+971501234567",
"to": "+97144567890",
"text": "Where's my order?",
"contact": {
"name": "Layla Al-Mansoori",
"tags": ["vip", "d2c"]
  },
"timestamp": 1715092382
}

Webhooks

Get every event, in real time.

Subscribe to message, ticket, flow and delivery events. Signed with HMAC, retried with exponential backoff, delivered exactly once where you've enabled idempotency.

message.received · message.delivered
ticket.created · ticket.assigned
flow.started · flow.completed
HMAC-SHA256 request signing
Replay logs & manual redelivery

Built for production

Operationally boring, by design.

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OpenAPI 3.1

Spec-first design — typed SDKs planned for Node, Python and PHP, generated from the spec.

↻

Idempotent

Pass an Idempotency-Key and retry safely. We dedupe for 24 hours.

⌗

Rate limits

Generous defaults, transparent headers, burst allowances on every plan.

◴

Built for uptime

Designed multi-region, with a public status page arriving at launch.

⌬

Sandbox

A free sandbox number with seedable conversations, available at launch.

≡

Audit logs

Every API call logged with user, IP, and request ID. Exportable as JSON.

Build with us from day one.

Request early access and be first in line when the API opens — sandbox first, then live behind a single boolean flag.

Request API access See pricing

A first-class API for WhatsApp messaging.