Secure Cross 402

The architecture leverages a Generic Risk-Aware (for potential reorgs), Cross-Chain Facilitator, which integrates comprehensive risk assessment for x402 transactions, faster cross-chain settlements, and address screening (via Chainlink sanctioned addresses oracle and GoPlusLabs API). With pre-funded facilitator balances on target chains, it enables instant settlements within HTTP request-response cycles, avoiding delays caused by traditional blockchain bridges.

We built Secure Cross 402 as a modular architecture on top of the existing x402 protocol, extending it with risk-aware cross-chain settlement capabilities. The system is composed of multiple agents and services that interact through enhanced HTTP headers and on-chain verifications. The new HTTP headers we introduced with this new architecture specially for cross chain settlements and request correlations. Project uses Polygon due to it's faster block time which is crucial for x402 faster settlements without getting a HTTP bad gateway, and their higher user adoption as well as they have already looked into the domain of x402 and we used Chainalaysis to get sanctions data, next js for the web app development