Usage Limits

1000 requests per month for free users. No limit for pro tiers.

Langbase API sets limits on API usage based on your subscription plan. These limits are subject to change and may vary based on your subscription plan.

Free Users

The usage limit for free tier users is as follows:

Limit: 1000 requests per month.

Pro/Enterprise Users

There are no hard usage limits for Pro or Enterprise tiers. Instead, users in these tiers are billed according to the number of requests made within each billing period. Refer to your pricing and subscription plan for further details.

If you have questions about your usage or need assistance, please don't hesitate to contact us.

Warning

Langbase is in the public beta stage right now. These limits and pricing are subject to change without notice. Please bear with us as we improve and get ready for a stable release and massive scale. Already processing tens of billions of AI tokens every month, you're in good hands. Feedback welcomed.

Usage Limit Headers

Free tier requests to the Langbase API have the following response headers. These headers convey status of the usage limits.

Header	Description
`lb-usagelimit-limit`	The usage limit applicable to your request.
`lb-usagelimit-remaining`	The number of requests remaining in the current usage limit window.
`lb-usagelimit-used`	The number of requests made in the current usage limit window.

About Usage Limits

If a free tier user exceeds the usage limit, an HTTP status code 403 USAGE_EXCEEDED error will be sent.
Usage limits are applied on a per-user or per-organization basis. For organizations, all requests made by the organization are collectively restricted within a single limit window.