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Getting Started with HashDT API's

Welcome to HashDT — your unified platform for digital payments, card programs, banking services, wallet management, and seamless API integrations.

This guide is designed to help you integrate HashDT APIs quickly and confidently, whether you're building a sandbox app or preparing for production.

Key Points Before You Start​

  • Always collect and secure your API keys.
  • Never expose your secret keys in frontend code.
  • The API secret key is delivered securely to your email by HashDT.
  • Use a unique x-request-id for each API request to ensure idempotency and reliable tracking.

Use the Sandbox Environment​

HashDT provides a fully isolated sandbox for safe testing of your integrations.

  • Sandbox credentials have been shared via email to your team.
  • Always use sandbox-specific API keys when testing.
  • No real financial transactions are processed in the sandbox.
  • Simulate different scenarios to test your app without impacting real users.

Sandbox Base URL : https://api.sandbox.hashdt.com — Used for development and testing. All transactions in this environment are simulated and safe.

💡 Tip: Treat the sandbox as a playground — experiment with all API endpoints and verify your logic.

Test APIs Using the Built-in Playground​

HashDT provides an API Playground (Try It Out) directly within the documentation, allowing you to test APIs without leaving the website.

  • Execute API requests directly from the documentation
  • Test endpoints in real time using sandbox credentials
  • Manually enter the required request headers
  • Complete the provided boilerplate request body template
  • Instantly view API responses and error messages
  • Ideal for quick validation and understanding API behavior

The API Playground uses sandbox credentials only and does not process real transactions.

💡 Tip: Once the required headers are filled and the request body template is completed, you're good to go—no additional setup required.

Test Faster with Postman​

To help you get started quickly, HashDT provides a ready-to-use Postman collection.

  • Import the HashDT Postman collection to explore all available APIs
  • Pre-configured requests help you understand required headers and payloads
  • Easily test all available APIs
  • Use environment variables for base URLs and headers

This allows you to validate API behavior without writing code upfront.

Next: Choose Your Program​

HashDT offers multiple programs — Core Card, PowerUp Card, and PowerUp Banking — each suited to different use cases. Head to the Program Selection guide to compare them and find the right starting point for your integration.

Choose Your Program →

Need Help?​

If you encounter any issues or need guidance: Contact Developer Support at: support@hashdt.com

We're here to help you integrate smoothly and efficiently.