Zenodo · Rate Limits

Zenodo Rate Limits

Zenodo enforces rate limits on all API endpoints to ensure fair resource distribution. Limits vary by endpoint type and authentication status. Exceeding a limit returns HTTP 429 Too Many Requests. Rate-limit status is exposed via response headers on every API call.

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

It captures 7 rate-limit definitions, measuring requests.

Limit state is signalled in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers.

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 Research, Open Data, Repository, DOI, and Datasets.

7 Limits X-RateLimit-LimitX-RateLimit-RemainingX-RateLimit-Reset
Method: generated, dated 2026-06-12.
Written by API Evangelist on 2026-06-12 and not verified against a page the provider published. Treat every limit as unconfirmed until a dated transcription replaces it.
View Source
ResearchOpen DataRepositoryDOIDatasetsSoftwareCERNOpenAIREInvenioRDMOpen ScienceMetadataHarvestingResearch DataData CatalogOAI-PMHResearch RepositoryOpen Access

Limits

REST API (authenticated)
requests · minute
100
Applies to all REST API endpoints for users with a valid Bearer token
REST API (authenticated)
requests · hour
5000
Hourly ceiling for authenticated REST API users
REST API (guest)
requests · minute
60
Applies to unauthenticated REST API requests
REST API (guest)
requests · hour
2000
Hourly ceiling for unauthenticated REST API users
Search API
requests · minute
30
Applies to the /api/records search endpoint; same limit for authenticated and guest users
OAI-PMH
requests · minute
30
Applies to the OAI-PMH harvesting endpoint at https://zenodo.org/oai2d
Sandbox (guest)
requests · minute
133
Sandbox environment at sandbox.zenodo.org for development and testing

Work with this as data

Every rate limit here is available over the APIs.io API and to AI agents over MCP.

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Tools for rate limits

4 MCP tools reach this
  • 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.
All 92 tools →

Call it yourself

curl for this page
This rate limit 
curl "https://apis.io/api/v1/rate-limits/zenodo-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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