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okx-x402-payment

Sign x402 payments for HTTP 402 payment-gated resources using TEE or EIP-3009.

Updated Mar 19, 2026
Search Tags:#authentication#web3#wallet#x402#eip-3009#onchainos#payment-signing
One-click install
npx skills add https://github.com/aviral10x/agent-arena --skill okx-x402-payment-aviral10x
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: okx-x402-payment
Source: https://github.com/aviral10x/agent-arena/tree/main/.agents/skills/okx-x402-payment
Command: npx skills add https://github.com/aviral10x/agent-arena --skill okx-x402-payment-aviral10x

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Enables secure access to paid resources by signing and delivering x402 payment proofs, using either a wallet-backed TEE session or local EIP-3009 signing when a wallet is unavailable.

Core Features & Use Cases

  • End-to-end x402 payment signing to access HTTP 402 gated resources.
  • Dual signing paths: wallet session (TEE) or offline local signing with a private key.
  • Replays the original request with the correct header (signature + authorization) to unlock the resource.

Quick Start

Decode the 402 payload, sign a payment with onchainos, and replay the original request with the appropriate header.

Frequently Asked Questions about okx-x402-payment

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
What is an HTTP 402 payment and how does x402 signing work?▼

x402 payment signing automates access to HTTP 402 gated resources by decoding the 402 payload and applying cryptographic signatures. It replays the original request with a constructed header containing the signature and authorization data to unlock the resource.

How do I sign x402 payments to access gated resources?▼

To sign x402 payments, decode the 402 payload, choose between wallet-based TEE signing or local EIP-3009 signing, and replay the original request with the appropriate header. This delivers the payment proof needed to unlock the gated resource.

Can I use local EIP-3009 signing for x402 payments without a wallet?▼

Yes, local EIP-3009 signing enables offline x402 payment signing with a private key when a wallet is unavailable. This provides a dual signing path alongside wallet-backed TEE sessions to satisfy network CAIP-2 and authorization requirements.

Does x402 payment signing support wallet-backed TEE sessions?▼

Yes, x402 payment signing supports wallet-backed TEE sessions as a dual signing path. This allows secure on-chainos payment signing through a wallet session, constructing the required header with signature and authorization to access gated resources.

What are the limitations of x402 payment signing for HTTP 402 responses?▼

x402 payment signing is limited to HTTP 402 gated resources and requires either a wallet-backed TEE session or a local EIP-3009 private key. It must satisfy network CAIP-2, authorization data, and header construction requirements to successfully replay the request.

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