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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.

Create API keyFull Claude Code guide
CLAUDE CODE PROXY ENV
export ANTHROPIC_BASE_URL=https://api.aiduct.ai
export ANTHROPIC_AUTH_TOKEN=sk-aiduct-...
export ANTHROPIC_DEFAULT_SONNET_MODEL=anthropic/claude-sonnet-4-5

claude
# Use /status to confirm Claude Code is pointed at Aiduct

PROTOCOL

Anthropic Messages

MARKUP

$0

MODELS

Sonnet, Haiku, Opus

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.

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

AREAAIDUCTALTERNATIVE
BillingUsage-based with dashboard recordsSubscription or separate upstream account
ProtocolNative Anthropic MessagesOften OpenAI-shape compatibility only
ModelsClaude Sonnet, Haiku, OpusDepends 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.

Do I need an Anthropic subscription?+

No. You use an Aiduct API key and pay by usage. New accounts receive welcome credit for testing.

Should ANTHROPIC_BASE_URL include /v1?+

No. Use https://api.aiduct.ai. Claude Code appends the Messages API path itself.