The decentralized solution for online identity verification.

Ontology's Trust Anchor Gateway (TAG) is a verifiable credential service based on decentralized identities, helping applications access users’ verifiable credentials and allowing users to authorize information independently whilst protecting their privacy.
KYC Verification

Access global authentication service providers.

Social Authentication

Provide social media account authentication services (inc. Twitter, Facebook).

Low Cost

Reduced costs with reusable authentication results


Allow users to authorize personal information as needed, avoiding user privacy issues

Easy Integration

Easily integrated into traditional Internet applications or dApps