What is the difference between OATH (Open Authentication) vs authentik?

**OATH (Open Authentication)**: Vendor-neutral org publishing open standards for OTP & strong auth. built by OATH (Open Authentication). headquartered in United States. Core capabilities include Open, royalty-free OTP specifications (HOTP, TOTP, OCRA), HOTP (RFC 4226): counter-based HMAC one-time password standard, TOTP (RFC 6238): time-based one-time password standard.. **authentik**: Open-source identity provider with SSO, MFA, and application proxy capabilities. built by authentik. headquartered in United States. Core capabilities include Multi-factor authentication, Single sign-on with OAuth2/OIDC and SAML2 support, Application proxy.. Both serve the Multi-Factor Authentication and Single Sign-On market but differ in approach, feature depth, and target audience.

What features do OATH (Open Authentication) vs authentik offer?

**OATH (Open Authentication)** differentiates with Open, royalty-free OTP specifications (HOTP, TOTP, OCRA), HOTP (RFC 4226): counter-based HMAC one-time password standard, TOTP (RFC 6238): time-based one-time password standard. **authentik** differentiates with Multi-factor authentication, Single sign-on with OAuth2/OIDC and SAML2 support, Application proxy.

Who makes OATH (Open Authentication) vs authentik?

**OATH (Open Authentication)** is developed by OATH (Open Authentication). **authentik** is developed by authentik. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Is OATH (Open Authentication) a good alternative to authentik?

OATH (Open Authentication) and authentik serve similar Multi-Factor Authentication and Single Sign-On use cases: both are Multi-Factor Authentication and Single Sign-On tools, both cover Authentication, MFA, Open Source. Key differences: OATH (Open Authentication) is Free while authentik is Commercial. Review the feature comparison above to determine which fits your requirements.

OATH (Open Authentication) vs authentik (2026) | Compare Multi-Factor Authentication and Single Sign-On Tools

OATH (Open Authentication)

Vendor-neutral org publishing open standards for OTP & strong auth.

Multi-Factor Authentication and Single Sign-On

Free

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authentik

Open-source identity provider with SSO, MFA, and application proxy capabilities

Multi-Factor Authentication and Single Sign-On

Commercial

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Side-by-Side Comparison

Feature

OATH (Open Authentication)

authentik

Pricing Model

Free

Commercial

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Core Features

Open, royalty-free OTP specifications (HOTP, TOTP, OCRA)
HOTP (RFC 4226): counter-based HMAC one-time password standard
TOTP (RFC 6238): time-based one-time password standard
OCRA (RFC 6287): challenge-response authentication and transaction signing standard
Certification profiles for interoperability validation
Reference architecture for authentication implementers
Best-practice guides for enterprise authentication deployments
Technical working groups for community-driven specification development

Multi-factor authentication
Single sign-on with OAuth2/OIDC and SAML2 support
Application proxy
Conditional access controls
WebAuthn and passkey support
GeoIP and impossible travel detection
Remote access for RDP, VNC, and SSH
User enrollment and self-service workflows

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OATH (Open Authentication) vs authentik: 2026 Comparison

OATH (Open Authentication)

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