x402 agentic payments (Coinbase's HTTP 402 protocol). Custody-free tools to pay x402-protected endpoints (build the EIP-3009 transferWithAuthorization the payer signs, assemble the X-PAYMENT header), call a facilitator (verify/settle/supported), and monetize your own API by generating PaymentRequirements. USDC on Base. Triggers: x402, HTTP 402, pay per request, agentic payment, machine payment, X-
no risky patterns detected
Type: Agent skill (SKILL.md) · Category: Finance & Payments · Source: https://github.com/jiayaoqijia/cryptoskill/tree/HEAD/skills/ai-crypto/chaingpt-o
| Capabilities (fewer powerful permissions = higher) | 50/50 |
| Maintenance | 29/35 |
| Documentation | 15/15 |
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