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Drop-in Anthropic Python SDK wrapper that transparently handles HTTP 402 x402 payment retry. Wraps `httpx` transport so `anthropic.Anthropic` / `AsyncAnthropic` auto-pays with USDC on EVM (Base, Ethereum) or SVM (Solana) and retries — no call-site changes needed.

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open-source-sdks
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How to call

cURL · x402-fetch / x402-axios will auto-handle 402
curl -X POST https://github.com/kinance/x402-anthropic-python