APIx402
A non-custodial, crypto-native gateway that lets developers monetize any API with USDC micropayments on Base L2 — no subscriptions, no API keys, just payment.
Consumers sign a USDC transferWithAuthorization (EIP-3009) using pinion-os or any x402-compatible client. The gateway verifies the signature, submits the on-chain settlement, and forwards the request — all before the response is returned.
Features
* x402 payment flow — HTTP 402 with EIP-3009 signed USDC authorization
* On-chain settlement — gateway wallet submits
transferWithAuthorizationto USDC contract; funds move consumer → developer atomically* Payment chaining — if an upstream is itself x402-protected, the gateway pays it automatically via pinion-os
* API marketplace — public explore page; developers list, consumers discover
* Developer dashboard — analytics, transaction history, payout tracking
* Rate limiting — per-endpoint call limits enforced before payment check
* Admin panel — platform config, user management, global stats