GETTING STARTED
Overview
Documentation hub and integration paths
Ax402 is a full-stack x402 platform: facilitator, gateway, dashboard, TypeScript / Go / Python SDKs, CLI, MCP, and React paywall. Payment protocol details live in the x402 foundation . Agents: start with the agent guide or fetch /llms.txt .
Platform
Full stackHow facilitator, gateway, SDKs, and paywall connect.FacilitatorVerify, settle, and supported networks.SandboxTest mode on the Anvil fork — wallet, RPC, SDK, CLI.Control plane APIREST contract, auth, resources.Gateway & dashboardHosted gateway — no upstream code changes.
Paying gateway URLs
Buyer clientsPay gateway URLs from TypeScript, Go, Python, CLI, or MCP.React paywallWallet connect + pay overlay for browser SPAs.
Integration paths
SDKs and tools
SDK overviewTypeScript, Go, Python — control plane + buyer.TypeScript@ax402/sdk + /buyer + /platform.GoControl plane and buyer for CI/CD.PythonSync/async clients, optional buyer extra.API discoveryAgentCash OpenAPI + x402 well-known on gateway hosts.Buyer clientsPay gateway URLs across languages.CLI referenceFull ax402 command list.MCP serverAgent tools for Cursor and Claude.Agent guideBootstrap, recipes, scope presets.
Environment variables
AX402_BASE_URL— control plane URLAX402_API_KEY— scoped key for CLI, MCP, SDK automation (ax402_sandbox_...for Sandbox)AX402_JWT— CLI alternative to API key (required for sandbox-wallet)AX402_ENVIRONMENT/AX402_SANDBOX— Sandbox / Test mode (Sandbox guide)AX402_EVM_PRIVATE_KEY— buyer signing (CLI, MCP, SDK buyer modules)