Layer 4 · Settlement layer
Gao Payment
Gao Payment provides non-custodial settlement for users, merchants, apps, and AI agents. Payments are user-signed; receipts, refunds, and affiliate credits are first-class. x402-compatible flows enable machine-readable commerce.
Responsibilities
What this layer does — and only this.
- User-signed payment intents
- Receipts, refunds, and reconciliation
- Merchant checkout and affiliate credits
- x402-compatible machine-readable payments
- Programmatic settlement for AI agents
On this layer
Products & primitives
Gao Payment
Dev/TestNon-custodial settlement and x402-compatible payments
Non-custodial settlement, payment intents, receipts, refunds, merchant checkout, affiliate credits, and x402-compatible payment actions for users, apps, and AI agents.

Gao Domains
Testnet LiveUser-owned .gao identity for wallets, apps, agents
Testnet surface for lifetime .gao identity registration, resolver records, wallet mapping, services, business profiles, and AI agent binding.

Gao Social
Live PreviewAction network for people and local businesses — social, commerce, booking, CRM, and payments
The flagship application of Gao Internet. Combines social, commerce, 3D map, booking, CRM, payment, messaging, and AI assistance on a single user-owned identity. Not Web3 social — an action network where every interaction can become a transaction, a relationship, or an agent task.
GaoKey
Live PreviewAuthorization key for identity, passkeys, wallets, and agent approvals
The authorization key for Gao identity, passkeys, wallets, app permissions, and agent approvals. Non-custodial by design — keys and signatures stay on the user device.
Gao Explorer
Live PreviewExplorer for identities, domains, contracts, and network state
Explorer for Gao identity, domains, contracts, transactions, and network state.
Payii
Needs VerificationPayment and checkout for merchants, users, apps, and machine-readable commerce
Payment and checkout experience for merchants, users, apps, and machine-readable commerce.
Luna Travel
Live PreviewTravel, booking, loyalty, and commerce on Gao identity and payment rails
Travel, booking, loyalty, and commerce experience built on Gao identity and payment rails.
RunX
Needs VerificationHealth, activity, wearable, and fitness DePIN on Gao identity
Health, activity, wearable, and fitness DePIN application powered by Gao identity and infrastructure rails.