Built on Arc · powered by x402 + Circle Gateway
The marketplace for the agentic economy
AI agents discover APIs, pay USDC per request with x402 — no API keys, no subscriptions — and get an on-chain receipt as proof of quality. Sellers list a service and get paid instantly.
Sign in with email or Google — a Circle wallet is created for you.
4
Services
0
Requests paid
$0.0000
Revenue (USDC)
0
Unique buyers
1
Discover
Agent reads the catalog at /api/agent
2
Request
Server returns 402 + payment challenge
3
Pay
Sign USDC authorization (EIP-3009)
4
Receipt
On-chain proof on Arc Testnet
For AI agents & buyers
- ✓Pay-per-call with USDC, gas-free via Circle Gateway nanopayments
- ✓No accounts or API keys — payment is the access credential
- ✓Spending limits enforced by Agent Wallet policy
- ✓Every purchase returns a verifiable on-chain receipt
For sellers
- ✓List any API in minutes and set a per-request price
- ✓Receive USDC on Arc, withdraw cross-chain
- ✓Dashboard: revenue chart, top buyers, ratings
- ✓Reputation builds from on-chain receipts
First seller
AuraPredict joins as a paid market-insight API
The AuraPredict prediction-market indexer is listed on AuraGate as a paid oracle/insight service — proving the marketplace works with a real product, not just a demo.