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by xpaysh • Uncategorized
A comprehensive resource hub for building and integrating the x402 protocol enabling internet-native payments using HTTP 402.
Make autonomous, instant micropayments using blockchain over HTTP.
Integrate paywalls and monetize API services with zero fees and fast settlement.
Build AI agent payment frameworks and enable crypto/USDC payments.
This repository serves as the ultimate guide and collection of resources for the x402 protocol, which enables instant blockchain payments over HTTP using the 402 Payment Required status code. It provides official protocol documentation, SDKs, client libraries, server frameworks, middleware, production implementations, and example applications. The x402 protocol is designed for AI agents, APIs, and micropayments, offering zero fees and 2-second settlement times, primarily using USDC on the Base blockchain.
Check a URL for malware, phishing, and other threats. Uses URLhaus + heuristic analysis.
Check if a password hash (SHA-1) has been exposed in known data breaches via HIBP.
Look up a SHA-1 hash prefix in the HIBP k-Anonymity database.
Check domain reputation: DNS records, blacklists (Spamhaus, SpamCop, SORBS), SPF/DMARC, SSL.
Check IP reputation: blacklists, Tor exit node detection, reverse DNS.
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