AlterAuth vs Clerk

See how their public offers line up before you choose your own position. Prices stay in the currency, billing schedule, and charged unit each vendor publishes.

AlterAuth

See full pricing history

USD · US · source: www.alterauth.rest

Plan	Pricing	Charged by	Offer type
Hobby	Free $0 for up to 1K MAU	Usage · up to 1,000 MAU	Standalone · Free
Startup Highlighted	USD 49 monthly $49/month for 25K MAU	Usage · per month with 25,000 MAU	Standalone · Fixed
Scale	USD 199 monthly $199/month for 250K MAU	Usage · per month with 250,000 MAU	Standalone · Fixed
Enterprise	Contact sales Custom volume pricing	Usage · custom volume pricing	Standalone · Contact sales

Clerk

See full pricing history

USD · US · source: clerk.com

Plan	Pricing	Charged by	Offer type
Pro	USD 20 / month with annual commitment ProMonthlyAnnual$20per month, billed annuallyScale with full-featured authentication.Upgrade to Pro plan	Flat · per month, billed annually	Standalone · Fixed
Business	USD 250 / month with annual commitment BusinessMonthlyAnnual$250per month, billed annuallyTackle compliance and growing teams.Upgrade to Business plan	Flat · per month, billed annually	Standalone · Fixed

What each plan includes

Feature names follow each vendor’s own pricing page, so verify the wording before treating them as exact equivalents.

AlterAuth

Hobby

Plan card 1,000 monthly active users: Included
Plan card Behavioral biometrics: Included
Plan card Stateless JWT tokens: Included
Plan card 1 environment: Included

Startup

Plan card 25,000 monthly active users: Included
Plan card Anti-deepfake MFA: Included
Plan card Intent-bound agent tokens: Included
Plan card 30-day audit logs: Included

Scale

Plan card 250,000 monthly active users: Included
Plan card Agent auditing: Included
Plan card One-year audit logs: Included
Plan card Unlimited environments: Included

Enterprise

Plan card SSO and SAML: Included
Plan card SCIM: Included
Plan card SOC 2 support: Included
Plan card Dedicated SLA: Included

Clerk

Pro

Plan card Scale with full-featured authentication.: Included

Business

Plan card Tackle compliance and growing teams.: Included

How their prices changed

Each dated row shows the public prices observed when that vendor’s pricing page changed.

AlterAuth

August 27, 2026 Source
- Hobby: Free
- Startup: USD 49 monthly
- Scale: USD 199 monthly
- Enterprise: Contact sales

Clerk

August 27, 2026 Source
- Pro: USD 20 / month with annual commitment
- Business: USD 250 / month with annual commitment