on MoonX by MoonPay
Crypto for people who still have email.
k4d is your guide: how MoonPay (MoonX), PayBox, and x402 fit together for humans and agents. Escrow, Paywall, and Sign are live examples of what you can ship.
- AuthEasy BreezyEmail + Passkey
- WalletMoonX by MoonPaySecure, Self-Custodial
- AgentsPayBox MCPClaude, ChatGPT
Want to build with MoonPay for human auth and passkey wallets, PayBox for scoped agent spend, or explore topics on autonomous agentic commerce?
Open the docsFrom the docs
- Connectthree rails. one human gateway. try not to merge them into a single confused blob.
- Recipesif you have an outcome in mind, start here. passkey apps, agent spend, paywalled APIs, tip unlocks.
- Skillsinstallable cursor skills for moonx, paybox, and x402. durable knowledge with audit gates, not last week's vibes.
- x402HTTP asks for money without inventing another login form. facilitators are helpers, not the religion.
Examples
live apps on the stack. try them, then steal the patterns from the docs.