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Meta Business Partner UK Registered Company

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Developer solutions

Build on the official WhatsApp Business API

Integrate WhatsApp into your applications through a documented API: REST endpoints, real-time webhooks and a full reference with ready examples.

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  • 99.9% API uptime
  • <100ms Response time
  • 24/7 AI support
Illustrative dashboard example: every webhook delivery is logged with its state, and failed ones are retried automatically.

Developer tools

Everything you need to build

A complete toolkit to integrate the WhatsApp Business API into your stack.

WhatsApp Business API

The official API through a Meta Business Partner: text, media, buttons, lists and approved templates.

Webhooks & events

Six event types reach your server in real time, retried on failure, with a log entry for every delivery.

REST endpoints

Clear endpoints to send messages and templates, manage chats and contacts, and read message history by date.

MCP server

Connects AI tools like ChatGPT and Claude to WhatsApp conversations, included with the API add-on.

Postman collection

Download the full collection and import it into Postman to try every endpoint with your key.

API reference & curl examples

A reference generated from the repository itself, with a copy-ready curl example and sample responses for every endpoint.

Get started

From sign-up to your first message

The full reference covers authentication, errors, rate limits and safe retries, with a ready example for every endpoint.

Open the API reference Postman collection

Get started in three steps

  1. Create your account

    Sign up for LetsBot and connect your business WhatsApp number. The API works during the trial or with the API Access add-on.

  2. Copy your API key

    The account owner finds it in the dashboard under API → Authentication data; send it in the Authorization header with every request.

    Authorization: Bearer <lb_api_key>

  3. Send your first message

    One POST request with the recipient’s number and the text, then turn on webhooks to receive the replies.

    POST /api/v1/message/send

Webhooks

Choose the events that reach your server

Turn each type on separately in the dashboard, and follow every delivery in the webhook logs.

  • message_notification Message notifications New messages and message updates.
  • ack_notification Status notifications Message status and connection status updates.
  • chat_notification Chat notifications New chats and chat updates.
  • label_notifications Label notifications Label updates.
  • contact_notifications Contact notifications New contacts and contact updates.
  • order_notifications Order notifications New orders.

Why LetsBot

Built on the official channel

LetsBot is a Meta Business Partner for the WhatsApp Business API, and a UK-registered company serving Arab and international businesses. Your applications connect to the official, sanctioned channel, away from the ban risk of unofficial tools, and in line with WhatsApp policy.

On Meta’s Cloud API, throughput reaches 80 messages per second per number and rises automatically to 1,000. The dashboard, live chat and mobile app are available in Arabic, English, Spanish and Portuguese.

  • An official WhatsApp channel through a Meta Business Partner
  • Real-time webhooks for six event types, with retries
  • Send approved templates through the API
  • 99.9% infrastructure uptime
  • A full API reference and a Postman collection
  • AI support 24/7 in any language, and a human team in Arabic and English

Get started today

Ready to start building?

Get API access and start integrating WhatsApp into your app within minutes.

Get API access Read the documentation