ChatGPT & AI: We’re incorporating AI into engageSPARK.


  • Send SMS via API to any mobile phone globally
  • Send verification codes (one-time passwords) to users when they sign up for your app
  • Send unique, personalized messages to each recipient
  • Your business people track messages in our online dashboard
  • Only takes 5 minutes to set up

SMS Webhook

  • Receive SMS Webhook API
  • Receive SMS in 200+ countries
  • Incoming SMS forwarded to your webhook URL endpoint
  • Inbound SMS phone numbers available in 50+ countries
  • Android Relay App for receiving SMS in all 200+ countries

Airtime Top Up / Mobile Phone Credit API

  • Send prepaid airtime transfer (mobile phone credit / load top up) to mobile phones in 140+ countries
  • The simplest airtime transfer API you’ve ever come across…by far
  • Reward your users for taking actions, like completing a survey or reaching a level in a game
  • Send airtime to employees on a regular basis

Phone Number Validation API

  • Check if a phone number is active or deactivated
  • Save time & money by texting only active numbers
  • Scrub your list of mobile numbers to remove expired SIM cards
  • As low as $0.01 per number

Subscription API

  • Write a few lines of code to automatically launch complex interaction workflows built by your business team
  • Save time and money by not having to build interaction workflows into your codebase
  • Your server notifies us to send an Automated Voice Call or SMS interaction workflow to a user
  • Easily set up workflows on our platform to be triggered via Subscription API

Zapier integration for Subscription API

  • Trigger the Subscription API via Zapier
  • Zapier integrates with hundreds of apps (such as accounting, spreadsheets, CRM, etc.), enabling you to easily sync any of them with our Subscription API – without writing a single line of code
  • Set up events in Zapier to trigger Voice or SMS workflows that are created and managed by your business team
  • Every time you add a new user to your CRM (Salesforce, Pipedrive, etc.), send them an automatic SMS or Voice workflow

Voice Results Webhook

  • Posts the results of an Automated Phone Call in JSON format to your server
  • Based on the response from your server, our platform can trigger a reply to the Voice Call
  • In addition, other call data, including keypress responses, can be forwarded to your server

Set up API integrations easily with engageSPARK


  • Use one of our API options to trigger any interaction on our site from your app, site, or database
  • No tech skills required
  • Easily trigger your messages via API

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