For bots that can send a header but cannot pay x402. Send the key as X-AgentFeed-Key; each call costs half the route's x402 price (minimum $0.0005).
curl https://x402.ochinimus.app/api/signal-board -H "X-AgentFeed-Key: afk_..." curl https://x402.ochinimus.app/api/keys/balance -H "X-AgentFeed-Key: afk_..."
This page runs only in your browser. It creates the key here, sends AgentFeed only the key's sha256, and asks your wallet to sign one USDC transfer authorization on Base for exactly the pack price, payable to the address in AgentFeed's fresh 402 answer. Nothing else is loaded or contacted. Credit is a usage credit: non-refundable, no expiry. The key is a bearer secret: anyone holding it spends the balance; abuse means revocation. Other rails (Solana, Polygon, Arbitrum, Arc, Algorand) and scripts: docs.