Why am I getting a 401 Unauthorized error when using Postman to test my API?

Testing APIs
1

Hey folks,

I’m stuck with a 401 Unauthorized error while testing my API in Postman. I’ve double-checked the endpoint, set the auth headers (Bearer token), and even tried different environments—but I’m still hitting the same issue.

I did go through a blog that explains this error in detail—it covers possible causes like missing tokens, incorrect auth types, etc. It’s helpful, but I’m still confused about what exactly I’m missing on my end. I feel like I’m close to the fix, but something small is slipping through.

Has anyone run into something similar? What else should I check when Postman keeps throwing a 401 even when the token looks fine?

Appreciate any tips!

2

Hey @marcustaylor881 :waving_hand:

Welcome to the Postman Community! :postman:

Would you be able to provide some more context about the structure of your requests/collection, how you’re creating the token, if you’re running the Collection outside of the UI and some visual examples so we can see the issue you’re facing, please?