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Gx402 is an integration kit that lets games accept and manage x402 payments across engines and platforms (Unity, Unreal, WebGL, Telegram, Farcaster, BaseApp and more). It provides client helpers, starter templates, and a lightweight backend gateway so you can start accepting payments quickly — without wrestling with low-level web3 plumbing. Why Gx402
  • One SDK, All Platforms: Seamlessly integrate across Unity, Unreal, Web, Mobile, and Mini Apps.
  • Built-in x402 Facilitator Infrastructure: Leverage a robust and efficient payment infrastructure.
  • Multi-chain Support: Compatible with both EVM and non-EVM blockchains.
  • Genre-Specific Payment Templates for Gaming: Utilize pre-built templates tailored for various game genres.
  • Zero Blockchain Knowledge Required for Developers: Focus on game development, not blockchain complexities.
Next steps
  • Read the Quick Start to run your first payment.
  • See Platform Guides for engine-specific steps.