pay-sdk

Python and TypeScript SDKs for Pay -- the complete x402 payment stack for AI agents. USDC on Base.

TypeScript:

npm install @pay-skill/sdk

Python:

pip install payskill

TypeScript:

import { Wallet } from "@pay-skill/sdk";

const wallet = await Wallet.create();  // OS keychain (same key as CLI)
await wallet.send("0xprovider", 5);  // send $5
const response = await wallet.request("https://api.example.com/data");  // x402 auto-pay

Python:

from payskill import Wallet

wallet = Wallet()  # reads key from OS keychain
wallet.send("0xprovider", 5)  # send $5
response = wallet.request("https://api.example.com/data")  # x402 auto-pay

Both SDKs have identical API surfaces: 17 methods covering direct payments, tabs, x402 requests, webhooks, discovery, and wallet management. Dollar amounts by default.

• TypeScript SDK Reference
• Python SDK Reference
• TypeScript README
• Python README

Pay is the complete x402 payment stack -- gateway, facilitator, SDKs, CLI, and MCP server -- that lets AI agents pay for APIs with USDC on Base.

• Documentation
• Architecture
• CLI -- Command-line tool
• pay-gate -- x402 payment gateway
• MCP Server -- Claude Desktop / Cursor / VS Code
• Protocol -- Smart contracts

MIT