SendApp API Docs

Integrate WhatsApp, SMS, contacts and the SendApp AI assistant into your applications. A single base URL, apikey authentication, JSON responses.

Base URL https://app.sendapp.ai

Send your first message Integration guides

curl -X POST 'https://app.sendapp.ai/api/whatsapp-meta/send' \
  -H 'Content-Type: application/json' \
  -d '{
    "apikey": "YOUR_API_KEY",
    "token": "YOUR_ACCOUNT_TOKEN",
    "number": "1234567890",
    "type": "freetext",
    "message": "Hi! Thanks for reaching out to us."
  }'

<?php
$ch = curl_init('https://app.sendapp.ai/api/whatsapp-meta/send');
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST => true,
    CURLOPT_HTTPHEADER => ['Content-Type: application/json'],
    CURLOPT_POSTFIELDS => json_encode([
        'apikey'  => 'YOUR_API_KEY',
        'token'   => 'YOUR_ACCOUNT_TOKEN',
        'number'  => '1234567890',
        'type'    => 'freetext',
        'message' => 'Hi! Thanks for reaching out to us.',
    ]),
]);
echo curl_exec($ch);

const res = await fetch('https://app.sendapp.ai/api/whatsapp-meta/send', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    apikey: 'YOUR_API_KEY',
    token: 'YOUR_ACCOUNT_TOKEN',
    number: '1234567890',
    type: 'freetext',
    message: 'Hi! Thanks for reaching out to us.'
  })
});
console.log(await res.json());

Get started in 3 steps

From the API key to your first delivered message, in a few minutes.

Get your API key

It identifies your user and is the same for all your accounts. Send it with every request as apikey.

Choose the account

Every WhatsApp number or AI assistant has its own token: it tells the request which account to work on.

GET /api/get_tokens

Send your first request

Copy the example above, replace the number and the token and run it: the response contains the message id.

All parameters

Authentication

How to authenticate every request to the API.

Every request must include the apikey parameter (or the X-API-Key header for the contacts/account endpoints). The apikey authenticates your user. Many endpoints also need a token that identifies the specific account (AI model / WhatsApp channel) to work on.

The token parameter is a placeholder on this page (YOUR_ACCOUNT_TOKEN): you have a different token for each account. Use GET /api/get_tokens to list them.

apikeyrequired

Your API Key. Identifies your SendApp account.

tokenoptional

Account token (AI model or channel). Identifies which account the operation is executed on.

API reference

Every endpoint, grouped by area.

Messages

7 endpoint

2 more

Contacts

11 endpoint

6 more

Campaigns

3 endpoint

Bookings

4 endpoint

Account & AI

6 endpoint

1 more

Inbound webhook

1 endpoint

POSTInbound webhook (Integrations)

Status webhook

2 endpoint

Integration guides

Connect SendApp to the tools you already use: each guide walks you through the setup step by step.

ShopifyEcommerce

Connect Shopify: on every event we create or update the contact in SendApp and tag it.