Prompt
Should I test auth and permissions with my API tool?
Latest observation
Oct 6, 2026
OpenAI APIWeb search: off
Yes — testing auth and permissions with your API tool is a good idea, but usually not as your only method.
What to test in an API tool
Use it to verify:
- Authentication works
- valid login / token issuance
- expired or invalid tokens are rejected
- Authorization / permissions work
- a normal user cannot access admin-only endpoints
- users can only read/write their own resources
- role-based access behaves correctly
- Error behavior
- unauthorized requests return the right status codes, like
401or403
- unauthorized requests return the right status codes, like
- Token handling
- Bearer token included correctly
- refresh flow if applicable
Why it’s useful
An API tool like Postman, Insomnia, curl, or similar helps you:
- quickly reproduce issues
- inspect request/response details
- manually explore edge cases
- confirm backend behavior independent of the frontend
What else to use
For stronger coverage, combine API tool testing with:
- automated tests in your codebase
- integration tests for auth and permission rules
- end-to-end tests for full login/user flows
Practical rule
If you’re asking “Can this user do this action?”, then yes, your API tool is a great place to check it manually.
If you want, I can also give you a small checklist for testing auth/permissions in Postman or curl.