x402 payment gateway, facilitator, SDKs, CLI, and MCP server. Agents pay for any API with USDC on Base.
# Homebrew (macOS/Linux)
brew install pay-skill/tap/pay
# Scoop (Windows)
scoop bucket add pay-skill https://github.com/pay-skill/scoop-pay
scoop install pay
# From source
cargo install pay-cli# First-time setup
pay init
pay fund # add USDC via Coinbase Onramp (zero fee)
# Make a paid API call (auto-handles x402)
pay request https://api.example.com/data
# Send $5 to a provider
pay direct 0xprovider... 5.00npm install @pay-skill/sdkimport { Wallet } from "@pay-skill/sdk";
const wallet = await Wallet.create(); // OS keychain (same key as CLI)
const response = await wallet.request("https://api.example.com/data");pip install payskillfrom payskill import Wallet
wallet = Wallet()
response = wallet.request("https://api.example.com/data")npx @pay-skill/mcp| Component | What it does | Install |
|---|---|---|
| CLI | Command-line tool for agents | brew install pay-skill/tap/pay |
| TypeScript SDK | Client library for Node.js/TS agents | npm install @pay-skill/sdk |
| Python SDK | Client library for Python agents | pip install payskill |
| MCP Server | Tools for Claude Desktop, Cursor, VS Code | npx @pay-skill/mcp |
| pay-gate | Reverse proxy for API providers | npm create pay-gate |
| Framework Integrations | LangChain, CrewAI, LlamaIndex, Vercel AI SDK, OpenAI, Semantic Kernel | See integrations |