Documentation

Ax402 combines a hosted x402 gateway with SDKs, CLI, MCP tools, and e-commerce plugins. Payment protocol details live in the x402 foundation — these docs cover the Ax402 control plane and integration paths.

Choose your path

Gateway wrap

Monetize an existing HTTP API via the hosted gateway — dashboard, domains, no upstream code changes.

SDK integration

Automate APIs, endpoints, and stats from TypeScript, Go, or Python; add buyer clients in-process.

SDKs and tools

TypeScript

@axlabs/ax402-sdk — dashboard parity + buyer module.

Control-plane client and buyer helpers for CI/CD.

Python

Pydantic models, sync/async clients, optional buyer extra.

Buyer clients

Pay gateway URLs with x402 signing across languages.

CLI

Shell automation with scoped API keys.

MCP server

Agent tools for Cursor, Claude Desktop, and compatible hosts.

Agent workflows

CLI + MCP recipes, scope presets, and pay_url setup.

Plugins

E-commerce

WordPress, WooCommerce, and Shopify starters that sync routes to the gateway.

Environment variables

AX402_BASE_URL — control plane URL (default http://api.localhost:8090)
AX402_API_KEY — scoped key for CLI, MCP, and automation
AX402_EVM_PRIVATE_KEY — buyer signing (CLI pay, MCP pay_url)