Pricing
Per call. No account. No API key.
$0.10 a call for the verdict oracles; less for the breadth feeds. One x402 payment in USDC on Base mainnet — no account, no API key, no subscription. These are the live prices, straight from the catalog your agent hits.
Start free
Seeing the 402 challenge costs nothing and needs no account — just curl -i x402.payperbyte.io/feeds/weather. You only pay when you replay the request with payment, and your first real call can be as little as $0.003.
Optional starter kit
The assembled afternoon: give an agent a wallet, bounded — plus a free 30-min readiness call. The npm packages themselves stay free, MIT.
How it bills
USDC settles over x402 on Base mainnet (eip155:8453), from the agent’s wallet to the BYTEDev Safe. No API keys, no invoices. Every feed quotes a fixed per-call price in its 402 challenge — the price shown above. The verdict oracles are flat; the reference and breadth feeds are priced per feed, set roughly by payload size (~$0.005/KB, $0.001 floor).
Questions on the verdict feeds?
Fifteen minutes with the founder — a real $0.10 402 call, receipt verified in front of you.
Book 15 minutes →or book directly on Cal.com ↗Prefer to verify the numbers yourself? Open metrics links every figure to its source.