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OpenCitations

OpenCitations Citations API

Operations for retrieving citation metadata and counts

Documentation Provider Profile APIs.io OpenAPI GitHub

OpenCitations Citations API is one of 6 APIs that OpenCitations publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Citations. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and rate-limit docs.

This API exposes 4 operations across 4 paths, and defines 2 schemas. It is described by OpenAPI 3.0.3, at version 2.2.0.

Requests are made against a single base URL, https://api.opencitations.net/index/v2.

4 operations 4 paths 2 schemas 4 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
2.2.0
Base URL
https://api.opencitations.net/index/v2
Authentication
API Key
Contact
OpenCitations
License
Creative Commons Attribution 4.0 International
Resource Areas
1

Authentication & Security 1

OpenCitations Citations API declares 1 security scheme for authenticating requests. An API key is passed in the header as authorization (accessToken). By default, every request must be authenticated, though some operations may also be called without credentials.

  • accessToken — OpenCitations Access Token obtained from https://opencitations.net/accesstoken. Recommended for application/code usage to ensure stable access.

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 4 GET. Each is listed below with its method, path, parameters, and response codes.

Citations 4

Operations for retrieving citation metadata and counts

GET
/citation/{oci}
Get citation by OCI
getCitationByOCI 2 params → 200404
GET
/citation-count/{id}
Get incoming citation count
getCitationCount 2 params → 200
GET
/venue-citation-count/{id}
Get venue incoming citation count
getVenueCitationCount 2 params → 200
GET
/citations/{id}
Get incoming citations
getCitations 6 params → 200

Schemas 2

The contract defines 2 schemas that model the data the API accepts and returns. The most detailed are Citation (7 properties), Count (1 property). Each schema is shown below with its type and property counts.

Count
object
Citation or reference count result
1 property
Citation
object
Citation metadata record
7 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

opencitations-citations-api-openapi.yml Raw ↑

Other APIs OpenCitations publishes across the network.

OpenCitations SPARQL Endpoint
AE Profile APIs.io
OpenCitations Authors API
AE Profile APIs.io
OpenCitations Editors API
AE Profile APIs.io
OpenCitations Metadata API
AE Profile APIs.io
OpenCitations References API
AE Profile APIs.io
#Citations
← Back to O APIs
API Details
ID
opencitations:opencitations-citations-api
Base URL
https://api.opencitations.net/index/v2
Docs
https://api.opencitations.net/index/v2
Provider
OpenCitations
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