Rate Limits

Rate limits are applied to all API requests to ensure stability and fair usage. If you exceed the rate limit, the API will return a 429 Too Many Requests error. To increase your rate limit, please contact your account manager.

General Limits

• Standard Requests: Defaults to 600 req/min, or varies based on your specific access tier.

• Advanced (Light API): Capped at 50 calls per day, with no access to bulk endpoints. See Light API for the full limits.

• Metadata Endpoints: Separately limited to 1200 req/min. This bucket is fully isolated and does not impact your standard request quota.

• Studio: Requests made via Glassnode Studio from the same account do consume your API rate limit as well. Studio may request multiple metrics (e.g. on a dashboard) as well as call metadata endpoints.

---

Response Headers

Every API response includes headers to help you track your usage:

Header	Description
x-rate-limit-limit	The total request limit per minute (e.g., 600).
x-rate-limit-remaining	The number of requests left in the current window (e.g., 599).
x-rate-limit-reset	Time in seconds until the limit resets (e.g., 60).

Best Practices & Common Pitfalls

1. High Cardinality Requests (Assets/Exchanges) Running into limits when requesting many parameter combinations (e.g., iterating through a list of assets) is a common issue.

• Solution: Use Bulk Endpoints. These allow you to fetch data for multiple parameters (like "all assets" or "all exchanges") in a single request.

2. Looping Through Metrics Scripts that loop through numerous metrics often trigger rate limits.

• Solution: Pass the x-rate-limit headers to your HTTP client library. Many modern libraries can read these headers to automatically pace requests and respect the reset window. Otherwise, you can implement a delay that adheres to the rate limit.