b402

The primary goal of b402 is to provide an open, on-chain payment standard that extends the HTTP 402 Payment Required status code into a programmable settlement layer for AI agents and web services on the BNB Chain.

Developers and service providers can integrate b402 to enable programmatic, per-request, or usage-based payments. This involves setting up a server or seller service and configuring it to interact with the b402 facilitator for payment verification and settlement.

b402 differentiates itself by offering agent-to-agent payments with native crypto primitives, low-fee micropayments without custodians, integrated identity through ERC-8004, and BNB-native deployment with EVM compatibility.

b402 is built with security-first principles, utilizing audited smart contracts and a trust-minimized facilitator to handle verification and settlement of payments between agents and service providers.

As with any blockchain-based protocol, potential risks include smart contract vulnerabilities, reliance on the facilitator's security, and the evolving regulatory landscape affecting crypto payments. b402 mitigates these risks through open-source development, audits, and community engagement.