Send test messages via Redox

Last updated: Jan 15, 2026
HEALTH TECH VENDOR
HCO
IMPLEMENTATION

During implementation or any other kind of testing, you can simulate sending messages from your system. The test messages go to a mock EHR system, but you can review resulting logs on the Logs page.

Rate limit for DevTools

The rate limit when using any of our DevTools is lower than our standard rate limit. You may send up to 5 API requests per every 5 minutes with any of our test tools. Learn more about our quotas and constraints.

These instructions assume that you’ve already created at least one API key in your development environment. If you haven’t yet, create and authenticate an OAuth API key.

  1. Log in to the Redox dashboard.
  2. From the Environments drop-down on the left-hand menu, select your development environment.
    Select your development environment
    Select your development environment
  3. From the navigation menu, click the Developer page.
  4. By default, the Sources tab opens.
    • If you use our recommended OAuth API keys, find the OAuth API key you plan to use to authenticate your messages. Click the Edit button next to it.
    • If you use legacy API keys, find the source associated with the legacy API key and click the Edit button next to it.
  5. The Settings page opens. Click the DevTools (Postman) tab. This tab contains download links to set up test messages in Postman. Check out Postman.
    Available Postman downloads
    Available Postman downloads
    Developer downloads

    We offer a variety of test tools to help with onboarding, implementation, and testing. Learn how to use test tools, including Postman packages. And, download test tools from the dashboard.

    DevTools for sources

    Sources have a second DevTools (Curl) tab. This DevTools allows you to generate test curl commands to send from your local machine.

  6. Send test messages for your subscription.
  7. Check your logs by navigating to the Logs page. Learn how to search for logs.
  8. (Optional) Now that you’ve confirmed you can successfully send, you can test that your destinations receive, too. Test your destination.
Bonus articles to explore

Now that you've sent test API requests, learn how to do the real thing.

FHIR® is a registered trademark of Health Level Seven International (HL7) and is used with the permission of HL7. Use of this trademark does not constitute an endorsement of products/services by HL7®.