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Developer Documentation

Welcome to Hilos!

This is our new home for our API, Webhooks & Integrations documentation.

To get started, create an API key for your account at Once you have your API key you can follow along with these examples!

To authenticate with any endpoint from our API please set a header with Authorization: Token <your API key>.

Below you can find guides for doing specific workflows:

Sending WhatsApp templates

Check if a phone number is on WhatsApp

WA Templates list