The short answer
A CLERK* AUTH charge is a monthly user authentication and session management subscription from Clerk Dev, Inc. for React and Next.js applications.
Why it shows up like this
CLERK* AUTH on your card or bank statement is a monthly subscription charge from Clerk Dev, Inc., the company behind the Clerk User Authentication Platform. Clerk provides ready-made user authentication components — sign-in forms, OAuth social logins, multi-factor authentication, and session management — that developers drop into React, Next.js, and other JavaScript applications. If your company builds or maintains a web application, someone on the engineering team likely integrated Clerk to handle user accounts.
The Pro plan starts at $25 per month and covers features like custom domain authentication, branded sign-in pages, and expanded monthly active user (MAU) allowances. Charges escalate if your app grows beyond the free tier's 10,000 MAU limit, or if SMS verification add-ons are active. The statement descriptor may appear as CLERK* AUTH, CLERK DEV INC, or CLERK.COM depending on your bank. This is a recurring monthly charge that renews until the plan is downgraded or cancelled.
To find this charge, log in to dashboard.clerk.com and select the relevant application. Go to Settings, then Billing, to see your current plan, active MAU count, and downloadable invoices. To stop future billing, click Manage Plan and downgrade to the Free tier, which supports up to 10,000 MAUs at no cost. If you do not recognize the application or workspace, ask your development or IT team before disputing — this is a common developer tool billed to company cards.
Don’t recognize it? Common scenarios
- A software developer integrated Clerk into a web project on a team credit card.
- An application exceeded the 10,000 MAU free tier allocation.
- SMS phone verification or custom branding add-ons were enabled.
How to locate the invoice and cancel
- Log in to Clerk Dashboard Open dashboard.clerk.com and sign in to your developer account.
- View Application Billing Select your application and go to Settings > Billing to see plan details and invoices.
- Downgrade to Free Click Manage Plan and downgrade your application to the Free tier.
Frequently Asked Questions
What happens if my application exceeds Clerk's Free tier limits?
Applications that exceed 10,000 monthly active users will be prompted to upgrade to the Pro tier to maintain unrestricted access.
Does Clerk charge for SMS one-time passcodes?
Clerk includes a base allocation of SMS verifications on paid plans; additional messages incur carrier passthrough fees.
Independent reference — not affiliated with Clerk Dev, Inc.. Billing names and policies change; verify with the merchant or your bank before acting.
Verified sources
Every claim on this page is checked against official sources — open them to confirm before you call your bank.
- Clerk Account and Billing Documentation https://clerk.com
- CFPB: Disputing Credit Card Charges https://www.consumerfinance.gov
Reviewed Aug 15, 2026 · high · About UnknownCharges