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Claude Code ANTHROPIC_BASE_URL Setup with AI Supermarket

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AI Supermarket
AI Supermarket
AI API Gateway Docs

Claude Code is a high-intent search topic because users usually search for it when they are actively configuring a development environment. The long-tail phrase Claude Code ANTHROPIC_BASE_URL is especially useful because it maps directly to a setup problem.

AI Supermarket provides an Anthropic-compatible root endpoint:

https://aisupermarket.work

Environment Variables​

macOS / Linux:

export ANTHROPIC_BASE_URL="https://aisupermarket.work"
export ANTHROPIC_AUTH_TOKEN="your-api-key"
export CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1

Windows PowerShell:

$env:ANTHROPIC_BASE_URL="https://aisupermarket.work"
$env:ANTHROPIC_AUTH_TOKEN="your-api-key"
$env:CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC=1

Why the Base URL Does Not Include /v1​

Claude Code and Anthropic SDK-style clients generally expect the gateway root address and append the Messages API path themselves.

Use:

https://aisupermarket.work

Do not use this for Claude Code environment variables:

https://aisupermarket.work/v1

That /v1 path is usually for OpenAI-compatible SDKs, Codex, OpenCode, and similar tools.

When Claude Code Cannot See Models​

If Claude Code starts but cannot call a model, check:

  • the Key is copied without extra spaces
  • the Key belongs to a Claude / Anthropic-compatible group
  • the model name is available in that group
  • the account has quota
  • the terminal session was restarted after changing environment variables