Cannot connect to my custom MCP server anymore

Help Hub
1

Hello,

I am using Postman to test and debug my MCP server. Everything was OK, and I have changed nothing on my side.

But since November 14, when I have upgraded Postman client, I have this issue when I try to connect with a valid token :

401 Authorization Required

401 Authorization Required

nginx/1.24.0 ↵↵

In my backend indeed I can see that Postman calls my /authenticate endpoint with no token.

Thank you

2

Try re-selecting Auth type

Authorization tab → Type → reselect “Bearer Token” (or your auth type)
→ Re-enter the token manually
→ Send again

3

I have tried, it does not solve the issue.

My backend still receives the authenticate without token

1 Like
4

Hey Sebastien!

Thanks for reaching out with this issue. We are well aware of the auth header not being passed and have merged a fix as of version 11.72.1. If you are able, please check you version number and update if necessary. The issue should be fixed, but if it is not, feel free to let me know.

Thanks again for letting us know about this!

5

Fixed with latest version, thank you!

1 Like