Agent payment infrastructure built on HTTP 402 and x402. AI agents pay per call in USDC — no accounts, no API keys, no checkout flow. You set the price; the chain settles it.
Instead of a key check, your endpoint answers 402 Payment Required with the price, your wallet, and the chain.
The agent signs an EIP-3009 authorization. Signing is free; the agent needs no ETH, ever. This is the property the whole design rests on.
The facilitator verifies the signature and submits the transfer on-chain. Your API serves the response. Fractions of a cent in overhead.
| Endpoint | Cost |
|---|---|
GET /health | free |
POST /mcp — ping, list_topics | free |
POST /mcp — 5 paid tools | $0.005 / call |
Unpaid calls return the x402 payment challenge — pay $0.005 USDC to 0x3a97d5F616D26876020568bD631492F59cFB428C on Base. Real mainnet settlement, verifiable by anyone: view on Basescan.
One endpoint behind 402. Wallet setup, verified settlement on Base. Live in under a week.
Up to 5 endpoints, MCP wrapper, registry listings. The full agent-native surface.
Monitoring, facilitator updates, settlement reconciliation. Ongoing.