API Unauthorized 401

[Cunos982003]

PS C:\WINDOWS\system32> fcc-server
INFO: Started server process [27372]
INFO: Waiting for application startup.
INFO: Admin UI: http://127.0.0.1:8082/admin (local-only)
INFO: Application startup complete.
INFO: Uvicorn running on http://0.0.0.0:8082 (Press CTRL+C to quit)
INFO: 127.0.0.1:65165 - "GET /admin HTTP/1.1" 200 OK
INFO: 127.0.0.1:65165 - "GET /admin/assets/admin.css HTTP/1.1" 200 OK
INFO: 127.0.0.1:52740 - "GET /admin/assets/admin.js HTTP/1.1" 200 OK
INFO: 127.0.0.1:65165 - "GET /admin/api/config HTTP/1.1" 200 OK
INFO: 127.0.0.1:65165 - "GET /admin/api/providers/openai/auth HTTP/1.1" 200 OK
INFO: 127.0.0.1:65165 - "GET /admin/api/models HTTP/1.1" 200 OK
INFO: 127.0.0.1:65165 - "POST /admin/api/config/validate HTTP/1.1" 200 OK
INFO: 127.0.0.1:65165 - "GET /admin/api/providers/local-status HTTP/1.1" 200 OK
INFO: 127.0.0.1:62449 - "HEAD /api/hello HTTP/1.1" 404 Not Found
INFO: 127.0.0.1:62494 - "POST /v1/messages?beta=true HTTP/1.1" 401 Unauthorized
INFO: 127.0.0.1:62494 - "POST /v1/messages?beta=true HTTP/1.1" 401 Unauthorized
INFO: 127.0.0.1:62494 - "POST /v1/messages?beta=true HTTP/1.1" 401 Unauthorized
INFO: 127.0.0.1:62494 - "POST /v1/messages?beta=true HTTP/1.1" 401 Unauthorized
INFO: 127.0.0.1:55859 - "HEAD /api/hello HTTP/1.1" 404 Not Found
INFO: 127.0.0.1:55861 - "HEAD /api/hello HTTP/1.1" 404 Not Found
INFO: 127.0.0.1:55884 - "HEAD /api/hello HTTP/1.1" 404 Not Found
INFO: 127.0.0.1:55886 - "HEAD /api/hello HTTP/1.1" 404 Not Found
INFO: 127.0.0.1:55896 - "HEAD /api/hello HTTP/1.1" 404 Not Found
INFO: 127.0.0.1:55935 - "POST /v1/messages?beta=true HTTP/1.1" 401 Unauthorized
INFO: 127.0.0.1:55935 - "POST /v1/messages?beta=true HTTP/1.1" 401 Unauthorized
INFO: 127.0.0.1:55935 - "POST /v1/messages?beta=true HTTP/1.1" 401 Unauthorized
INFO: 127.0.0.1:55935 - "POST /v1/messages?beta=true HTTP/1.1" 401 Unauthorized

I got this error after i setup in claude code in IntellJ anyone know how to fix?

[Intelli2Byte]

Hi @Cunos982003!

The 401 Unauthorized error means your coding agent (Claude Code in IntelliJ) is
reaching FCC, but the authentication token it's sending doesn't match what FCC expects.
Your routing is actually working fine — FCC is just rejecting the request for security.

Here's how to fix it:

Step 1: Check your FCC Auth settings

1. Open the FCC Admin UI: http://127.0.0.1:8082/admin
2. Scroll down to the "Runtime" section.
3. Look at "Require API Authentication". If it's turned ON:
   • You'll see an "API/CLI Auth Token" field below it.
   • Copy the token value that is currently set there.

Step 2: Configure IntelliJ to use that token
When you set up Claude Code in IntelliJ, it needs to know the FCC proxy address AND the token.
Make sure your environment variables or IntelliJ configuration are set to:
ANTHROPIC_BASE_URL=http://127.0.0.1:8082/
ANTHROPIC_API_KEY=

Alternatively, if you don't want to use a token at all:

1. Go back to the FCC Admin UI → Runtime section.
2. Turn OFF "Require API Authentication".
3. Click Apply.
4. Restart fcc-claude in IntelliJ.

Why this happens:
FCC acts as a local proxy. If you enable "Require API Authentication", it acts like a bouncer.
Your coding agent needs the exact "VIP pass" (the auth token) to get through to the free models.

If you are still having trouble, check if the token was copied correctly without any
accidental spaces or line breaks.

Hope this helps!