Cannot use own Anthropic API key

Bug Reports
1

Hello, I get the following error trying to use Claude 4 Opus:

We’re experiencing high demand for Claude 4 Opus right now. Please switch to the ‘auto-select’ model, another model, or try again in a few moments.
(Request ID: 5cbbad32-9a49-4f85-bed1-edcd293a7e43)

No problem, I’ll use my own API key. I paste it into the custom API keys. It verifies just fine, yet I get the following error:

Unauthorized User API key
(Request ID: 424b1788-aca2-45bd-9184-bd18c8641ea0)

When I test with the same key, manually, it works fine:

jcherniak@JustinMacbookM4:/rechub$ read -s ANTHROPIC_API_KEY
jcherniak@JustinMacbookM4:/rechub$  curl https://api.anthropic.com/v1/messages   -H "Content-Type: application/json"   -H "x-api-key: $ANTHROPIC_API_KEY"   -H "anthropic-version: 2023-06-01"   -d '{
    "model": "claude-4-opus-20250514",
    "max_tokens": 25000,
    "messages": [
      {
        "role": "user",
        "content": "Test"
      }
    ]
}'  | jq .
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   562  100   405  100   157     56     21  0:00:07  0:00:07 --:--:--   101
{
  "id": "msg_01AoaTfcK2ufVeRoLDEc9mLT",
  "type": "message",
  "role": "assistant",
  "model": "claude-opus-4-20250514",
  "content": [
    {
      "type": "text",
      "text": "Hello! I'm here and ready to help. What would you like to test or talk about today?"
    }
  ],
  "stop_reason": "end_turn",
  "stop_sequence": null,
  "usage": {
    "input_tokens": 8,
    "cache_creation_input_tokens": 0,
    "cache_read_input_tokens": 0,
    "output_tokens": 24,
    "service_tier": "standard"
  }
}

Trying to use my own key with claude-3.7-sonnet also doesn’t work

Unauthorized User API key
(Request ID: 00964301-92f8-43aa-89eb-91ce80cd9855)

Also tried claude-3.7-sonnet without max mode just to make sure that’s not the issue…

Unauthorized User API key
(Request ID: adc5eccf-dee0-4633-8165-1a1cbfe2518e)

Interestingly if I pipe it through Openrouter, it does work

Request dec1c52f-6b96-4ee5-ab00-a465e867a754

2

Hey, do you have an overridden base URL for the OpenAI API key? If so, reset it to the default settings. Also, if that doesn’t work, try using the model name claude-4-opus-20250514.

3

So clearing the OpenAI Base url and adding a custom model name fixed the anthropic key, but they are obviously separate (I didn’t override the Anthropic base url), so there is obviously a bug for you to fix here.

Also, doesn’t typing in a custom model name break Agent mode? Or am I misunderstanding how that works?

4

Yes, it’s a bug, and I hope it gets fixed. As for the model name, no, it should work like a regular one, but if the model name you have is working and is in the list of models, then adding a new one doesn’t make sense.