When interacting with Apollo's API endpoints, it is important to understand the status codes that might be generated.

To find a status code in this documentation:

Go to the reference documentation for an endpoint such as People API Search.
By default, the Response section of the reference docs shows an example response with a 200 status. To view other status codes, click the EXAMPLE drop-down, then select a status code.
The status you select will appear in the response section.

You do not need to supply an API key to review the Apollo-generated example response or other status codes. Check out How to Test API Endpoints to perform your own testing and generate unique responses.

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Status Report
Not all API status codes are currently documented by Apollo. This documentation contains the most common codes.
If you encounter a status that does not make sense, contact Apollo's support team for further assistance.