Developer API
Signer Authentication API
Verify signer identity before they can access documents. Support multiple authentication methods programmatically.
Authentication API Features
Identity Verification
Verify signer identity through email, SMS, knowledge-based questions, or ID document verification.
Multiple Methods
Choose from email OTP, SMS codes, access codes, knowledge-based authentication, or ID verification.
Enhanced Security
Add layers of authentication to prevent unauthorized access to sensitive signing documents.
Audit Trail
Every authentication attempt is logged with timestamps, IP addresses, and verification results.
Authentication Methods
Email OTP verification
SMS one-time passwords
Knowledge-based questions
ID document verification
Custom access codes
IP address restrictions
Secure Your Signing Flow
Use the Signer Authentication API to verify identity before document access.
View API Docs