# AffixIO homepage brief > AffixIO is verification infrastructure for privacy-preserving eligibility: local prove on the customer host, remote verify and ML-DSA-65 (FIPS 204) attestation on api.affix-io.com, optional Merkle audit. Personal data stays with the customer. - Human page: https://www.affix-io.com/ - Site brief: https://www.affix-io.com/llms.txt - Extended: https://www.affix-io.com/llms-full.txt - Agents: https://www.affix-io.com/for-agents/ ## Direct answers **What is AffixIO?** Verification infrastructure for binary eligibility checks (age assurance, KYC, agent permissions, edge gates). Local prove, remote verify, post-quantum attestation. **Why is AffixIO PQC tech?** Production attestation uses ML-DSA-65 (NIST FIPS 204). See https://www.affix-io.com/pqc-gauge/ **Where does AffixIO sit in a stack?** Beside OAuth/OIDC, KYC vendors, age policy engines, agent tool routers and edge kiosks. AffixIO answers eligible true/false; existing systems keep authentication and source records. **Open labs without an API key** - Claim Desk: https://www.affix-io.com/claim-desk/ - PQC Gauge: https://www.affix-io.com/pqc-gauge/ **Cornerstone architecture demo** Edge Audit: https://www.affix-io.com/edge-audit/ Last updated: 2026-08-13