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Developer integration

REST API + RapBooster

Send messages, manage contacts and read reports programmatically.

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A 14-day free trial on every plan. No card needed.

What it does

What REST API handles for you

  • 01Send WhatsApp, RCS and email messages programmatically.
  • 02Manage contacts, templates, tags and CRM records from your own code.
  • 03Read delivery and campaign reports for your dashboards.

Recipes

What teams switch on first

  • WhenOrder placed in your custom appThenSend a WhatsApp order confirmation via the API
  • WhenOTP or alert neededThenSend a utility template instantly
  • WhenNightly jobThenSync contacts and tags from your database

Setup

Connect REST API in 4 steps

Screens can differ slightly by plan. Stuck? Message us on WhatsApp and we will set it up with you.

  1. 1Create an API keyIn RapBooster, open Settings → API and generate a key. Keep it secret and server-side.
  2. 2Read the docsSee the developer section of each tool for endpoints and sample requests.
  3. 3Send a test messagePOST a template message to your own number to confirm the setup.
  4. 4Add webhooksSubscribe to delivery and reply events so your app stays in sync.

Questions

REST API integration questions

Is there an API rate limit?

Yes, limits depend on your plan and Meta's messaging tier. Contact support if you need higher throughput.

Which languages are supported?

Any language that can make HTTPS requests. The docs include cURL, Node.js, Python and PHP samples.

Can I call the API from a browser?

No. Keep your API key on the server; calling it from a browser would expose it.

Developer

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