x402 Protocol Development

Build internet-native payments with the x402 open protocol (x402 Foundation, Apache-2.0). Use when developing paid APIs, paywalled content, AI agent payment...

This bundle is documentation and example code for the x402 protocol (not an installer). It is coherent with its stated purpose, but you should note: (1) real use requires private keys and facilitator credentials — never paste private keys into public places and prefer hardware wallets or secure key management (CDP Wallet API or similar) where possible; (2) example code points at facilitator endpoints (e.g., https://x402.org/facilitator) — verify any third‑party facilitator before sending transaction payloads or signing permits; (3) test on devnets/test tokens before going to mainnet; (4) if you self-host a facilitator you will need to protect its FACILITATOR_KEY and ensure settlement logic and replay/duplicate protections are correctly implemented. The skill itself does not try to access your secrets automatically, but the examples assume you will provide them at runtime.

Type: OpenClaw Skill Name: x402-development Version: 0.5.0 The bundle provides comprehensive documentation and SDK references for the x402 protocol, an open standard for implementing HTTP 402 payments across multiple blockchain networks (EVM, Solana, Aptos, Stellar). It includes technical specifications, protocol flows, and implementation examples for TypeScript, Python, and Go. No evidence of malicious intent, data exfiltration, or prompt injection was found; the protocol's security model relies on standard cryptographic signatures, and the documentation correctly advises using environment variables for sensitive keys while explaining that facilitators cannot alter transaction details due to signature verification.