# Clerk cost tracking

Sumloop pulls Clerk usage on a schedule and puts it in the same ledger
as every other vendor a team pays.

| | |
| --- | --- |
| What Sumloop reads | registered users |
| Measured in | registered users |
| Credential | Secret key |
| Access | Read-only. Sumloop cannot change a resource or spend money. |
| Annual commitments | Spread by Sumloop |

## How to connect Clerk

1. In the Clerk dashboard, open Configure > API keys and copy the secret key for the production instance.
2. Paste the key below.
3. Clerk bills monthly active users and the API only reports total registered users — set the rate under Rates against that, knowing it runs high.

## Other auth, search & flags Sumloop tracks

- [Algolia](https://sumloop.app/integrations/algolia.md)
- [Auth0](https://sumloop.app/integrations/auth0.md)
- [LaunchDarkly](https://sumloop.app/integrations/launchdarkly.md)

## Links

- Clerk → API keys: https://dashboard.clerk.com/last-active?path=api-keys
- Clerk API reference: https://clerk.com/docs/reference/backend-api
- This page: https://sumloop.app/integrations/clerk
- Every integration: https://sumloop.app/integrations.md