A DeFi data API where AI agents pay per call via HTTP 402 micropayments

Show HN: A DeFi data API where AI agents pay per call via HTTP 402 micropayments

A DeFi data API where AI agents pay per call via HTTP 402 micropayments is a company in show hn launch.

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HTTP 402 Payment Required has been in the spec since 1997, “reserved for future use.” Turns out the future is AI agents that need to pay for API calls without signing up for anything.I built a DeFi/crypto data API that uses the x402 protocol (by Coinbase) to handle payment natively in the HTTP layer. No API keys, no subscriptions, no accounts. An agent sends a request, gets back a 402 with payment details, pays in USDC on Base, and retries — all in one flow.How it works:1. Client calls an endpoint 2. Server returns 402 with payment instructions (x402) 3. Client signs a USDC payment (0.001–0.008 USDC per call) and retries with a payment proof header 4. Server verifies payment and returns the

The company sits in the show hn launch segment, where it competes on its core product or service.

Its current recorded stage is Show HN launch.

Website: x402-api.fly.dev