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Getting Started with the APSIS Pro REST API

In this article, you will learn how to access and use the APSIS Pro REST API—generate API keys, authenticate requests, explore endpoints, and integrate powerful automation into your workflows.

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The APSIS Pro REST API is designed to help you integrate APSIS Pro’s powerful marketing automation features directly into your own applications and workflows. With secure and easy-to-use endpoints, you can automate tasks such as sending transactional emails, managing contacts, and retrieving detailed reports—all without leaving your environment.

Why Use the APSIS Pro API?

  • Automation: Eliminate manual steps and streamline your processes.

  • Flexibility: Integrate APSIS Pro with your CRM, or custom applications.

  • Real-Time Communication: Trigger emails and actions instantly based on user behavior.

Access to the APSIS Pro REST API

Before you can authenticate or call any endpoints, your APSIS Pro account must be enabled for REST API access.
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1) Request API Access

  • The REST API is an add-on feature. Contact your APSIS Account Manager or APSIS Customer Relations to activate API access for your account.

  • Once enabled, you can create API keys in your APSIS Pro account.

2) Create Your API Key

After API access is activated:

  1. Log in to APSIS Pro.

  2. Navigate to Account → Integrations.

  3. Click Generate, enter a name for your key (avoid spaces or special characters), and click Generate again.

  4. Copy and store your API key securely.

Note: It may take up to 5 minutes for the key to become active.

3) Authenticate Your API Calls

APSIS Pro uses API key authentication that can be authenticated in two ways.
​More about Authentication >

4) Explore API Endpoints

The APSIS Pro API offers multiple endpoints for different tasks:

  • Transactional Emails: Send confirmations and updates automatically.

  • Contacts: Add, update, or retrieve contact details.

  • Reports: Access delivery, open, and click statistics.

Full documentation is available at:
​APSIS Pro API Documentation

5) Test Your API Calls

Use the interactive documentation to test different endpoints:

  • Go to API Methods → Transactional.

  • Select an endpoint (e.g., GetTransactionalProjects) and click Make a request.

  • Add your API key and execute the call to see the response.

Best Practices

  • Secure Your API Key: Never expose it in public repositories.

  • Use HTTPS: All requests must be made over secure connections.

  • Handle Errors Gracefully: Check response codes and messages for troubleshooting.

Next Steps

Ready to start building?

  • Request API access from APSIS.

  • Generate your API key and authenticate your calls.

  • Explore the full API documentation for all available endpoints.

  • Integrate APSIS Pro into your workflows for smarter, automated communication.

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