OATH is an organization that provides open authentication standards, including Time-based One-Time Password (TOTP) and HMAC-based One-Time Password (HOTP). These standards are commonly used to generate one-time codes for two-factor authentication.
Canary, Pigeon, and Epoxy all implement HOTP and TOTP.
CanoKey can store up to 100 OATH credentials.
otpauth:// URI format.ckman.