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Install Extension

Documentation

Attest Knowledge Base

Everything you need to understand, install, and use the Attest human verification protocol.

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The easiest way to check if a human or AI sent the email — proving a real human sent every message, without ever reading your emails.

🚫 Zero email content stored🔐 No Gmail ID collected✅ GDPR & CCPA compliant🌍 Legal in all countries

Verification

WebAuthn / FIDO2 Frictionless Verification Gmail Send Hook Audit Engine Verify a Hash

Resources

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Compliance

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Status: OperationalVersion 2.1.0