Discrepancy between documentation/examples and OpenRouter endpoints.

[Mafrans]

The documentation and provided examples state that OpenRouter (and likely other OpenAI compatible APIs) should use the https://openrouter.ai/api/v1 base url. However, the tool only functions if the base url is set to https://openrouter.ai/api, as the /v1 prefix appears to be automatically included.

[dosubot]

Hi @Mafrans! I'm Dosu and I’m helping the cc-haha team.

You're correct — this is a confirmed documentation bug. The Anthropic SDK automatically appends /v1/messages to whatever base URL you provide [1], so when you set ANTHROPIC_BASE_URL=https://openrouter.ai/api/v1, the actual request goes to https://openrouter.ai/api/v1/v1/messages, which fails with model-not-found or 403/404 errors.

The correct configuration is:

ANTHROPIC_BASE_URL=https://openrouter.ai/api

This has been reported and confirmed by multiple users in #9 [2] [3]. The .env.example [4] and documentation [5] still show the incorrect /api/v1 URL and should be updated.

To reply, just mention @dosu.

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