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  • EU Setup

    Learn more about the EU setup where hosting and ownership are entirely within the EU.

  • Virtual Numbers

    Acquire virtual numbers to enable payments, donations or signups for competitions via SMS.

  • Lookup

    Use our Number Lookup service to test availability before SMS broadcasts.

  • Email to/from SMS

    Receive SMS messages in your email inbox and send emails that convert to SMS messages.

  • Pricing

    Read more about our price structure, possible country restrictions and add-on services.

  • Country Restrictions

    See possible restrictions for over 200 countries

  • Blog

    Latest news, tips & tricks, customer cases and in-depth technical posts.

  • RCS Business Messaging

    Interactive, branded messages with rich media. The next step beyond SMS.

  • SMS APIs

    Use GatewayAPI's powerful SMS APIs to send messages globally.

  • SMS Marketing

    Explore how SMS can stregthen your marketing mix and drive measurable results.

  • Email API

    Get access to our email API with high scalability and full GDPR compliance.

  • Security and Compliance

    Learn more about our leading security & compliance features. Your data are safe with us.

  • Popular integrations

  • WordPress

    Use our WordPress SMS plugin to send SMS messages to your customers easily.

  • SMS Integrations with Make

    Use Make to set up advanced integrations and automations between thousands of services.

  • SMS integrations with Zapier

    No-code platform for setting up integrations and automations between your favorite tools.

  • See all integrations
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Help Center
  • Quickstart
    • How to get started with your account
    • How to create subaccounts
    • How to invite a member
  • Billing
    • What payment methods do you offer and how can I set up a consumption report?
    • Trial, test credit and account suspension
    • Where can I find your prices?
  • SMS messaging
    • Mobile Messaging API
    • How do I set up webhooks?
    • How do I specify a Sender ID?
    • What is the character limit for an SMS?
    • Why did my SMS messages fail to be delivered?
    • Where can I find the delivery status?
    • What do the different error codes mean?
    • How to use Quick Send
    • What are country-specific restrictions?
    • How do I use special characters in SMS messages?
    • How do I acquire keywords, short codes and virtual numbers?
    • How to set up 2-way communication
    • Is it possible to include emojis in my SMS?
    • How to use the labels feature
  • RCS messaging
    • What is RCS Business Messaging?
    • Mobile Messaging API
    • How does RCS with fallback to SMS work?
    • How many characters can an RCS message contain?
    • Does the use of emojis affect the character limits of RCS messages?
    • What are RCS agents?
    • Is RCS Business Messaging Secure?
  • Email messaging
    • How do I get started with your email services?
    • What is DKIM?
    • What is SPF?
  • Account changes
    • How do I change my account details?
    • How do I delete my user?
  • Security
    • How do I get my URLs whitelisted?
    • How do I set up geo permissions?
    • How do I set up IP whitelisting?
    • How does OCiD and two-factor authentication (2FA) work?
  • Integrations
    • Integrations
  • Knowledge bank
    • What is the difference between A2P and P2P Messaging?
    • What are concatenated SMS messages?
    • What is an SMS API?
    • What is a CPaaS?
    • What is SMS traffic pumping fraud?
    • How do I get started with SMS marketing?
  • Terminology
    • Terminology
    • RCS Terminology
    • Email terminology
    • GatewayAPI-specific terminology

How can we help you?

Quickstart

Get your account up and running in no time with our quickstart guides.

Our integrations

Connect to your audience fast and easily with our variety of integrations.

Country-specific restrictions

Get all the information you need about country-specific restrictions in over 200 countries.

URL whitelisting

Do you wish to include URLs in your SMS messages? Learn how to get them whitelisted.

Webhooks & API keys

Learn how to use webhooks for Delivery Status Notifications, 2-way communication, and Email to SMS.

Documentation

Need to dig further into our product? Head over to our documentation and get a better understanding of how GatewayAPI works.

Technical documentation

All new customers are encouraged to use the Messaging API. However, you can choose from several APIs.

Integration Guide
SMS Flow
Authentication

Our integrations

Our integration options allow you to implement GatewayAPI’s SMS services in just about any tool or system that you wish to use.

Code examples
WordPress
Kannel
SMPP (Short Message Peer-to-Peer)
Make
Zapier
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