Paste a Bitcoin or Ethereum address. The audit classifies script type, checks UTXO + transaction history via public block explorers, and computes quantum exposure (at-rest vs on-spend) per the Google Quantum AI cryptocurrency whitepaper. Pairs with the PQC Analyzer for the web-stack side, the PQC Migration Plan Generator for phased planning, and the PQC blog "Blockchain quantum risk" section for the technical background.
Bitcoin lookups via blockstream.info (no API key, public infra). Ethereum lookups via cloudflare-eth.com JSON-RPC (no API key, public node). The audit does not transmit or store the address — calls happen browser-side.