When you create a Repliers account, you receive a test API key that allows you to explore and experiment with our APIs. This article explains what you can do with a test API key and its limitations.

What You Can Do With a Test API Key

• Make API requests to test endpoints
• Use interactive developer playgrounds
• Build and test prototype applications
• Evaluate Repliers' API functionality
• Learn API integration patterns

Test API Key Limitations

The test API key provides access to simulated data with the following restrictions:

• Listing data is scrambled and not representative of real MLS® listings
• Property photos are identical across all listings
• No access to real-time MLS® data

Accessing Real MLS® Data

To work with real MLS® listings, your account needs proper authorization from the relevant MLS®. The authorization process:

• Varies by MLS® organization
• Requires compliance with specific licensing requirements
• Must be completed before accessing live listing data

Recommended Use Cases

The test API key is ideal for:

• Initial development and integration
• Solution architecture planning
• Proof-of-concept development
• API familiarization
• Basic functionality testing

For access to real MLS® data and production use, please contact our support team to begin the authorization process. Prior to doing so, we'd recommend our MLS® data licensing guidelines.

What questions does this article answer?**

• What is a Repliers test API key and when do I get one?
• What can I do with a test key (endpoints, feature coverage, playgrounds, etc.)?
• What are the functional and data limitations of test keys?
• Can I use a test key in a staging or demo environment?
• How do I know when it’s time to switch from a test key to a production key?

Updated on: 05/12/2025