claudeindex
Plugin

x402

HTTP 402 payment protocol for AI agent commerce — three-actor model (Client, Resource Server, Facilitator), ERC-3009 transferWithAuthorization, server middleware (@x402/express), client patterns in TypeScript and Python, facilitator integration, agent-to-agent payments, pricing strategies, and replay protection. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, and Solana.

Installation

1

Add the marketplace

/plugin marketplace add 0xinit/cryptoskills
2

Install plugins

/plugin

Run these commands in Claude Code to add this plugin to your environment. The marketplace must be added before you can install its plugins.

Repository & Links

Plugin Source

View Plugin Code

GitHub Repository

0xinit/cryptoskills

Details & Metadata