Answers whether the $20/mo Claude Pro subscription can be used as a
LiteLLM backend instead of a pay-per-token Anthropic API key. Finding:
no — Pro/Max OAuth credentials are contractually restricted to Claude
Code / native Anthropic apps (Consumer ToS + Usage Policy, actively
enforced server-side since March 2026). Documents the supported path:
a separate Anthropic Console API key as a model_list entry, same shape
as the existing llama.cpp entry. Same pattern applies to other
providers (ChatGPT Plus, Gemini subscriptions).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
