NASA CMR · Rate Limits

Nasa Cmr Rate Limits

Rate limiting details for the NASA Common Metadata Repository (CMR) APIs. CMR Search enforces throttling rules per request signature to maintain system availability. Specific numeric thresholds are not published; clients must honor 429 responses with the retry-after header.

Nasa Cmr Rate Limits is the machine-readable rate-limit profile for NASA CMR on the APIs.io network, in the API Commons Rate Limits shape.

It captures 6 rate-limit definitions.

This profile was written by API Evangelist and has not been verified against a page the provider published; treat every limit as unconfirmed until a dated transcription replaces it.

Tagged areas include NASA, Earth Science, Satellite Data, Remote Sensing, and Geospatial.

6 Limits
Method: generated.
Written by API Evangelist and not verified against a page the provider published. Treat every limit as unconfirmed until a dated transcription replaces it.
View Source
NASAEarth ScienceSatellite DataRemote SensingGeospatialOpen DataMetadataCollectionGranules

Limits

request signature / IPPublic Search (Anonymous)
CMR Search deploys rate throttling rules targeting specific request signatures to prevent system degradation. No fixed request-per-second figure is published. 429 errors include a retry-after header; clients must honor this value before retrying.
request signature / tokenAuthenticated Search (EDL Token)
Same throttling framework applies to authenticated requests. EDL tokens do not unlock a separate higher-rate tier for search; authentication primarily controls access to restricted content.
All Plans
Hard request timeout is 180 seconds. An internal query timeout of 170 seconds returns partial results with a warning header rather than an error, allowing clients to page through large result sets.
All Plans
Maximum page size is 2,000 results per request. Default is 10. Deep paging beyond 1 million items is not supported.
All Plans
Stateless deep paging via the CMR-Search-After response header supports up to 1 million items. The deprecated scroll API has been removed.
All Plans
GET requests are limited to 6,000 characters. Browser clients are limited to ~2,000 characters. POST requests should be used for complex queries exceeding these limits.

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Tools for rate limits

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  • find_rate_limitsBrowse and filter every rate limit in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
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This rate limit 
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All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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