Security
API Authentication Exposure Checker
Observe how an endpoint behaves without credentials.
Advertisement
What is API Authentication Exposure Checker?
The API Authentication Exposure Checker sends a request without credentials and reports the behavior it can observe. It avoids declaring a public endpoint insecure merely because it returns HTTP 200.
What this tool checks
- HTTP 401 and 403 responses
- WWW-Authenticate header
- Successful anonymous response behavior
- Authentication-related response signals
How to use it
- Enter an endpoint that you want to observe without credentials.
- Run the check.
- Compare the observed behavior with your intended access policy.
- Verify authorization separately for protected data and actions.
Important:
This tool cannot determine whether an endpoint is supposed to be public. A successful anonymous response is an observation, not automatically a security finding.
Frequently asked questions
Does a 200 response mean authentication is broken?
No. Many legitimate endpoints are intentionally public.
Does this tool bypass authentication?
No. It simply sends a request without credentials and reports the response.