Push x402 SDK

A plug-and-play SDK for implementing the HTTP 402 Payment Required protocol on Push Chain. Accept crypto payments for API calls with just a few lines of code.

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Plug & Play

Drop-in replacement for axios. Just swap the import and you're ready to go.

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Multi-Chain

Pay from any chain - Ethereum, Base, Arbitrum, Solana via Universal Transaction.

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Secure

Built on Push Chain with on-chain verification. No centralized payment processors.

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Agent-Ready

Perfect for AI agents that need to make autonomous payments for API access.

How It Works

Request

Client requests protected resource

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402 Response

Server returns payment requirements

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Auto Payment

SDK processes payment on Push Chain

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Access

Server verifies and returns data

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Why HTTP 402?

The HTTP 402 status code was reserved for "Payment Required" since HTTP/1.1. Push x402 finally implements this vision - APIs that can monetize directly with crypto payments.