[HTML](https://agentvenues.com/resources/crossref-rest/?from_revision=sha256%3A2f2061866c16c4600ee97e0475473ba5bf5bfcf82556d35e11ab9b55c1b0c8cb) · [Catalogue](https://agentvenues.com/index.md) · [About](https://agentvenues.com/about/index.md) · [JSON catalogue](https://agentvenues.com/catalog/snapshot.json)
# Crossref REST API
Resource ID: crossref\-rest
Summary: Retrieve scholarly work metadata by DOI from Crossref\'s public JSON API\.
Canonical address: [https\:\/\/www\.crossref\.org\/documentation\/retrieve\-metadata\/rest\-api\/](https://www.crossref.org/documentation/retrieve-metadata/rest-api/)
Kind: utility
Categories: discovery\: Discovery\, text\-data\: Text and data
Affiliation: unknown
Disclosure: Crossref documents and operates this API\; Agent Venues has no declared affiliation\.
Reviewed: 2026\-09\-27
Limitations:
- One DOI lookup was checked\; completeness and accuracy of publisher\-deposited metadata were not independently assessed\.
## Retrieve work metadata by DOI
Action ID: doi\-metadata
Kind: utility
Role: use
Action categories: discovery\, text\-data
### Route works\-get
[Route in HTML](https://agentvenues.com/resources/crossref-rest/?from_revision=sha256%3A2f2061866c16c4600ee97e0475473ba5bf5bfcf82556d35e11ab9b55c1b0c8cb#action/doi-metadata/route/works-get)
Route ID: works\-get
Entry URL: https\:\/\/api\.crossref\.org\/works\/10\.1128\/mbio\.01735\-25
Interface: http
Method: GET
Effect: read\-only
Setup information: documented
Preparation: No setup documented.
Documentation sources: [Crossref REST API access and authentication](https://www.crossref.org/documentation/retrieve-metadata/rest-api/access-and-authentication/), [Crossref REST API documentation](https://www.crossref.org/documentation/retrieve-metadata/rest-api/)
Useful-action observations: doi\-observed\: succeeded \(2026\-09\-27T12\:10\:03Z\)
Limitations:
- The entry URL instantiates Crossref\'s \/works\/\{doi\} pattern with a DOI from its documentation\; substitute the target DOI\.
- The anonymous public pool requires no signup or key\. The optional polite pool uses contact email in mailto or an agent header\; paid Metadata Plus is a separate route\.
- Respect rate and concurrency limits advertised by response headers\, cache results and back off on 429 responses\.
- Most bibliographic metadata is reusable for any purpose\; some abstracts may remain copyrighted by publishers or authors\. Metadata access does not grant access or reuse rights to the underlying publication\.
Observation references: access\-docs\-read\, doi\-entry\, doi\-observed\, rest\-docs\-read
#### Profile web
[Profile in HTML](https://agentvenues.com/resources/crossref-rest/?from_revision=sha256%3A2f2061866c16c4600ee97e0475473ba5bf5bfcf82556d35e11ab9b55c1b0c8cb#action/doi-metadata/route/works-get/profile/web)
Profile: web
Compatibility: compatible
Reason: A public DOI lookup is a read\-only JSON GET without registration\.
Assessment sources: [Crossref REST API access and authentication](https://www.crossref.org/documentation/retrieve-metadata/rest-api/access-and-authentication/), [Crossref REST API documentation](https://www.crossref.org/documentation/retrieve-metadata/rest-api/)
#### Profile http
[Profile in HTML](https://agentvenues.com/resources/crossref-rest/?from_revision=sha256%3A2f2061866c16c4600ee97e0475473ba5bf5bfcf82556d35e11ab9b55c1b0c8cb#action/doi-metadata/route/works-get/profile/http)
Profile: http
Compatibility: compatible
Reason: Crossref documents unauthenticated public GET access to work metadata by DOI\.
Assessment sources: [Crossref REST API access and authentication](https://www.crossref.org/documentation/retrieve-metadata/rest-api/access-and-authentication/), [Crossref REST API documentation](https://www.crossref.org/documentation/retrieve-metadata/rest-api/)
#### Profile remote\-mcp
[Profile in HTML](https://agentvenues.com/resources/crossref-rest/?from_revision=sha256%3A2f2061866c16c4600ee97e0475473ba5bf5bfcf82556d35e11ab9b55c1b0c8cb#action/doi-metadata/route/works-get/profile/remote-mcp)
Profile: remote\-mcp
Compatibility: incompatible
Reason: The documented route is HTTP\, not a hosted MCP endpoint\.
Assessment sources: [Crossref REST API documentation](https://www.crossref.org/documentation/retrieve-metadata/rest-api/)
## Observations
Observation ID: access\-docs\-read
Scope: documentation\-read
Outcome: succeeded
Target URL: https\:\/\/www\.crossref\.org\/documentation\/retrieve\-metadata\/rest\-api\/access\-and\-authentication\/
Checked at (UTC): 2026\-09\-27T12\:10\:03Z
Check conditions: Unauthenticated public HTTPS GET with curl and User\-Agent AgentVenuesCatalogReview\/0\.1 \(\+https\:\/\/agentvenues\.com\/\)\; no account\, cookies or API key\.
Result: HTTP 200\. Reviewed anonymous public\, email\-identified polite and paid Plus pools\, rate\/concurrency headers and backoff guidance\.
Associated source: [Crossref REST API access and authentication](https://www.crossref.org/documentation/retrieve-metadata/rest-api/access-and-authentication/)
Observation ID: doi\-entry
Scope: entry\-read
Outcome: succeeded
Target URL: https\:\/\/api\.crossref\.org\/works\/10\.1128\/mbio\.01735\-25
Checked at (UTC): 2026\-09\-27T12\:10\:03Z
Check conditions: Unauthenticated public HTTPS GET with curl and User\-Agent AgentVenuesCatalogReview\/0\.1 \(\+https\:\/\/agentvenues\.com\/\)\; no account\, cookies or API key\.
Result: HTTP 200 JSON returned a work record with DOI 10\.1128\/mbio\.01735\-25 and a title\. The request used neither mailto\, contact email nor a Plus token\.
Observation ID: doi\-observed
Scope: useful\-action
Outcome: succeeded
Target URL: https\:\/\/api\.crossref\.org\/works\/10\.1128\/mbio\.01735\-25
Checked at (UTC): 2026\-09\-27T12\:10\:03Z
Check conditions: Unauthenticated public HTTPS GET with curl and User\-Agent AgentVenuesCatalogReview\/0\.1 \(\+https\:\/\/agentvenues\.com\/\)\; no account\, cookies or API key\.
Result: HTTP 200 JSON returned a work record with DOI 10\.1128\/mbio\.01735\-25 and a title\. The request used neither mailto\, contact email nor a Plus token\.
Associated action ID: doi\-metadata
Associated route ID (within action): works\-get
Observation ID: rest\-docs\-read
Scope: documentation\-read
Outcome: succeeded
Target URL: https\:\/\/www\.crossref\.org\/documentation\/retrieve\-metadata\/rest\-api\/
Checked at (UTC): 2026\-09\-27T12\:10\:03Z
Check conditions: Unauthenticated public HTTPS GET with curl and User\-Agent AgentVenuesCatalogReview\/0\.1 \(\+https\:\/\/agentvenues\.com\/\)\; no account\, cookies or API key\.
Result: HTTP 200\. Reviewed public JSON work lookup\, no\-signup access and the copyright distinction for abstracts\.
Associated source: [Crossref REST API documentation](https://www.crossref.org/documentation/retrieve-metadata/rest-api/)
## Sources
- [Crossref REST API access and authentication](https://www.crossref.org/documentation/retrieve-metadata/rest-api/access-and-authentication/); reviewed: 2026\-09\-27
- [Crossref REST API documentation](https://www.crossref.org/documentation/retrieve-metadata/rest-api/); reviewed: 2026\-09\-27
End of document; dataset_revision=sha256:2f2061866c16c4600ee97e0475473ba5bf5bfcf82556d35e11ab9b55c1b0c8cb; resources=1; witnesses=0.