Introduction

GoSendAPI Cloud is a Tech Provider for the WhatsApp Business Cloud API, built so your team can ship WhatsApp integrations without dealing with Meta’s onboarding, token rotation, webhook plumbing or sandbox limits.

You write one HTTP request — we handle the rest.

What you can do

Text, templates, images, video, audio, documents, interactive lists, buttons, location, contacts — all from a single POST /v1/messages.

Send messages

Real-time delivery of inbound messages, status updates, conversations and template events. HMAC-signed, retried with exponential backoff.

Receive messages via webhooks

Generate a single-use Setup Link → your customer authorizes WhatsApp in their own Meta account → we provision the WABA + phone numbers automatically.

Onboard customers

Create, sync and delete WhatsApp message templates. Status updates flow via webhook when Meta approves or rejects.

Manage templates

How it works

Your backend ──POST /v1/messages──► GoSendAPI ──Cloud API──► Meta
                                       ▲                       │
                                       └──── Webhook ──────────┘
                                              │
                                              ▼
                              HMAC-signed webhook to your backend

You authenticate with a single API key scoped to your project. The same key lets you send messages, manage WABAs and configure webhooks. Each project can host many customers; each customer can host many WABAs; each WABA can host many phone numbers.

A 30-second example

curl https://cloud.gosendapi.com/v1/messages \
  -H "X-API-Key: gsk_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "phone_number_id": "555123456789",
    "to": "5491140123456",
    "type": "text",
    "text": { "body": "Hello from GoSendAPI 👋" }
  }'

That’s a real message delivered to WhatsApp via Meta’s Cloud API. No SDK install, no OAuth dance, no manual token refresh.

Don’t have an API key yet? Create a project and we’ll generate one for you.

What’s next

Send your first WhatsApp message in under 5 minutes.

Quickstart

How API keys work, where they go, and how to keep them safe.

Authentication

The mental model: projects, customers, WABAs and phone numbers.

Core Concepts

Every endpoint, every field, every error code.

API Reference

Get help

Stuck on something? We read every message at hello@gosendapi.com and respond within one business day.

For uptime, incidents and maintenance windows, check status.gosendapi.com.

Quickstart