Rate Limits

1 request per second (RPS) for free users and 10 RPS for pro users.

Langbase API sets limits on how often users or organizations can request the API within a specific time period.

Free Tiers

The rate limit for free tier users is as follows:

Limit: 1 request per second

Pro Tiers

The rate limit for pro and enterprise tier users is as follows:

Limit: 10 requests per second

Custom enterprise packages can go upto 1K requests per second. Contact us for higher limits.

Unauthenticated Requests

If your request does not have a valid API key, it is considered an unauthenticated request. Limits for them are:

Limit: 60 requests per minute
Reset Interval: 60 seconds

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.

Rate Limit Headers

When you make a request to the Langbase API, it returns the following response headers. These headers convey you the rate limit status.

Header	Description
`lb-ratelimit-limit`	The rate limit applicable to your request.
`lb-ratelimit-remaining`	The number of requests remaining in the current rate limit window.
`lb-ratelimit-reset`	The time at which the current rate limit window resets.

About Rate Limits

If you exceed the rate limit, you will receive an HTTP status code 429 Too Many Requests error.
Rate 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.
These limits are subject to adjustment and may differ depending on your subscription plan.
If you need higher rate limits, please contact us.