Why use a proxy for Claude Code?
Claude Code users often want API-style metering instead of a monthly subscription. Aiduct routes Claude Code requests through an API key and records cost, latency, and request history in the dashboard.
Claude Code proxy
Claude Code proxy with native Anthropic Messages support.
Aiduct gives Claude Code a third-party API endpoint that still speaks Anthropic's native Messages protocol, so tool use, thinking, multimodal input, and model defaults keep working.
CLAUDE CODE PROXY ENV
export ANTHROPIC_BASE_URL=https://api.aiduct.ai export ANTHROPIC_AUTH_TOKEN=sk-aiduct-... export ANTHROPIC_DEFAULT_SONNET_MODEL=claude-sonnet-4-5 export ANTHROPIC_DEFAULT_HAIKU_MODEL=claude-haiku-4-5 export ANTHROPIC_DEFAULT_OPUS_MODEL=claude-opus-4-7 claude # Use /status to confirm Claude Code is pointed at Aiduct
PROTOCOL
Anthropic Messages
BILLING
Published pricing
MODELS
Sonnet, Haiku, Opus
Native protocol, not a shape conversion
The Claude Code path uses /v1/messages, not an OpenAI-only compatibility shim. That matters for Claude-specific behavior such as tool calls, thinking blocks, and multi-part message content.
Comparison
| AREA | AIDUCT | ALTERNATIVE |
|---|---|---|
| Billing | Usage-based with dashboard records | Subscription or separate upstream account |
| Protocol | Native Anthropic Messages | Often OpenAI-shape compatibility only |
| Models | Claude Sonnet, Haiku, Opus | Depends on provider mapping |
FAQ
Is Aiduct a Claude Code proxy?+
Yes. Claude Code sends Anthropic Messages requests to the base URL you configure, and Aiduct accepts those requests at api.aiduct.ai.
Should ANTHROPIC_BASE_URL include /v1?+
No. Use https://api.aiduct.ai. Claude Code appends the Messages API path itself.