UAI Systems has built and operates a live x402-paid API catalog on Cloudflare Workers. AI agents and developers can call security, email intelligence, and commerce-readiness endpoints on Base mainnet, paying per request in USDC through the HTTP 402 payment flow — no account signup and no API key required.
How x402 works
x402 revives HTTP 402 Payment Required for machine clients. An unpaid
request returns payment requirements; the client retries with an X-PAYMENT
(or v2 payment signature) header after signing a micropayment. A facilitator verifies
and settles on-chain; the Worker returns the API response. This repo uses the
Coinbase CDP facilitator and publishes discovery metadata for agent marketplaces.
Capabilities
- Hono API on Cloudflare Workers with x402 middleware and CDP Bazaar extensions
- Machine-readable catalog at
GET /api/v1/catalogandGET /.well-known/x402-catalog - Paid POST endpoints synced from the live UAI x402 API catalog
- Indexed in CDP Bazaar merchant discovery and listed on Agentic Market (service may lag per-endpoint)
- Network: Base mainnet
eip155:8453
Live endpoints & pricing
Loading catalog…
| Product | Description | Tags | Price | Endpoint |
|---|---|---|---|---|
| Loading catalog… | ||||
Catalog data is sourced from the live UAI x402 API catalog.
Worker base URL: x402-hono-api.inraby.workers.dev
Use cases
- Agent-ready monetization — expose existing APIs to autonomous buyers without building billing portals first
- Low-friction trials — per-call USDC pricing maps cleanly to utility for security scans and audits
- Edge-native — payment verification runs where your API already lives (Workers + facilitator)
- Discoverability — catalog and Bazaar metadata help agents find and price tools programmatically