Live Stacks/Bitcoin market intelligence for AI agents: PoX cycle, BTC+Stacks fee tiers, STX/BTC/USD spot, sBTC supply, and npm/PyPI dependency health. Pay per call via x402 - STX on Stacks mainnet or USDC on Base.
Data: x402-list.com (CC BY 4.0) Credit: 402 Index (MIT)
Unclaimed has 1 live API on PayAPI Market with 10 endpoints in total, in Finance: BTC-Intel - Stacks & Bitcoin Market Intelligence.
Are Unclaimed's APIs verified?
Not yet. Unclaimed's listings are live and answer an x402 payment challenge, but PayAPI Market has not paid for a call to them, so none carries a settlement-verified badge.
How do I pay for Unclaimed's APIs?
Per request, in USDC, over the x402 protocol. An agent calls the endpoint, receives HTTP 402 with the price and wallet, pays and retries. There is no API key, account or subscription, and Unclaimed keeps 100% of each payment.