Wikidata

Wikidata is a free, collaborative, multilingual knowledge graph hosted by the Wikimedia Foundation. It provides structured linked data for Wikipedia and other Wikimedia projects, as well as a public platform for anyone to read and edit. Wikidata exposes several APIs including a Wikibase REST API for entity read/write operations, the MediaWiki Action API for batch entity retrieval and editing, a SPARQL endpoint for complex graph queries, Linked Data URIs for individual entity access in multiple RDF formats, a real-time Server-Sent Events stream for change monitoring, and full database dumps for bulk data processing.

Wikidata publishes 5 APIs on the APIs.io network, including Descriptions API, Items API, Labels API, and 2 more. Tagged areas include Knowledge Graph, Linked Data, Open Data, Semantic Web, and SPARQL.

The Wikidata catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Wikidata’s developer surface includes authentication, developer portal, documentation, support, engineering blog, and 16 more developer resources.

🌐 Visit website 📡 Source on GitHub

56.0/100 strong ▬ flat Agent 35/100 agent ready Full breakdown ↓
scored 2026-08-21 · rubric v0.12.0

AccessFreemiumSelf serve⚡ Free to try

9 APIs 8 Features 7 Use Cases

Knowledge Graph Linked Data Open Data Semantic Web SPARQL Wikipedia

Kin Score

Kin Score How this is scored →
scored 2026-08-21 · rubric v0.12.0

Composite quality — 56.0/100 · strong

Contract Quality 15.4 / 21

Developer Ergonomics 7.3 / 17

Access Clarity 5.8 / 17

Operational Transparency 2.9 / 11

Contract Governance 2.9 / 10

Discoverability 6.3 / 9

Regulatory Posture 11.4 / 15

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/wikidata: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 9

Individual APIs this provider publishes, each with its own machine-readable definition.

MediaWiki Action API

The MediaWiki Action API provides batch entity retrieval, editing, and search for Wikidata via wbgetentities, wbsearchentities, wbeditentity, and other actions. Supports up to 5...

SPARQL Query Service

The Wikidata Query Service provides a SPARQL 1.1 endpoint at query.wikidata.org for running complex graph queries over the full Wikidata knowledge base. Supports federated queri...

Linked Data Interface

The Wikidata Linked Data Interface provides individual entity data via content negotiation at http://www.wikidata.org/entity/{QID}. Supports JSON, JSON-LD, RDF/XML, Turtle, and ...

Recent Changes Event Stream

The Wikimedia Event Stream provides real-time Server-Sent Events (SSE) for Wikidata changes, revision creations, and page events. Available at stream.wikimedia.org. Ideal for mo...

Wikidata Descriptions API

Description management

Wikidata Items API

Wikidata item (Q-entity) operations

Wikidata Labels API

Label management

Wikidata Properties API

Wikidata property (P-entity) operations

Wikidata Statements API

Scroll for all 7

Pricing Plans 1

Published pricing tiers and plan structures.

Wikidata Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Wikidata Rate Limits

4 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Wikidata Finops

FINOPS

Features 8

Notable capabilities this provider offers.

Multilingual Support

All entities support labels, descriptions, and aliases in hundreds of languages via BCP 47 language codes.

Structured Statements

Every claim is modeled as a statement with property, value, rank, qualifiers, and references for full provenance.

Open License

All Wikidata content is released under CC0 1.0 Universal (Public Domain) — no attribution required.

SPARQL Graph Queries

Complex multi-hop queries over 100M+ entities via SPARQL 1.1 at query.wikidata.org with GeoSPARQL and time extensions.

Real-Time Event Streaming

Server-Sent Events at stream.wikimedia.org deliver real-time change notifications for Wikidata edits.

Multiple Serialization Formats

Entities available as JSON, JSON-LD, RDF/XML, Turtle, and N-Triples via content negotiation on Linked Data URIs.

Wikibase Federation

Wikidata is an instance of Wikibase; federated SPARQL queries can cross Wikibase instances including Wikimedia Commons.

Database Dumps

Full JSON and RDF/TTL database dumps refreshed weekly at dumps.wikimedia.org for local bulk processing.

Scroll for all 8

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Wikidata Context

10 classes · 27 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Wikidata API Rules

5 rules · 4 warnings 1 info

SPECTRAL

Wikidata API Rules

37 rules · 12 errors 20 warnings 5 info

SPECTRAL

JSON Schema 9

Standalone JSON Schema definitions for this provider's data models.

DataValue

6 properties

JSON STRUCTURE

Scroll for all 9

6 fields

EXAMPLE

Wikidata Statement Example

6 fields

EXAMPLE

Scroll for all 9

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Wikidata Authentication

apiKey/oauth2 · 2 schemes

SECURITY

Wikidata Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Wikidata Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Wikidata Scopes

2 scopes · authorizationCode

2 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Wikidata Agentic Access

11 operations · 5 acting

AGENTIC

Use Cases 7

What developers build with this provider.

Knowledge Graph Augmentation

Enrich private datasets with structured Wikidata facts — entities, dates, relationships — via item and SPARQL queries.

Fact-Checking and Verification

Retrieve canonical statements with references to verify biographical, geographic, or scientific claims in text.

Wikipedia Infobox Data

Power Wikipedia infoboxes and sister-project templates with live Wikidata entity data via the MediaWiki Action API.

NLP Entity Linking

Resolve named entities from natural language to Wikidata Q-IDs using wbsearchentities and SPARQL label lookups.

Semantic Search

Build ontology-aware search systems using Wikidata's P31 (instance of) and P279 (subclass of) property hierarchies.

Change Monitoring

Track real-time edits to Wikidata entities relevant to a domain using the SSE event stream.

Linked Open Data Publishing

Publish organizational data as Linked Open Data by aligning custom schemas to Wikidata properties and Q-IDs.

Scroll for all 7

Integrations 7

Pre-built integrations with other platforms and tools.

Wikipedia

Wikidata powers structured data for all Wikipedia language editions via Lua modules and infobox templates.

Wikimedia Commons

Media files on Wikimedia Commons are described using Wikidata items via structured data on Commons.

OpenStreetMap

OSM features are linked to Wikidata via the wikidata=* tag, enabling geographic entity cross-referencing.

Scholia

Scholia is a Wikidata-based scholarly profile service that visualizes publications, authors, and institutions.

Reasonator

Reasonator renders human-readable pages for Wikidata items, integrating maps, timelines, and media.

Mix'n'match

Mix'n'match links Wikidata items to external databases (VIAF, ORCID, GND, etc.) for authority control.

OpenRefine

OpenRefine has a Wikidata reconciliation service and can batch-upload tabular data as Wikidata statements.

Scroll for all 7

Resources

Get Started 1

Portal, sign-up, and the first successful call

Portal

Portal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

SpectralRules

SpectralRules

Vocabulary

Vocabulary

Build 3

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

Access & Security 5

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

OAuthScopes

Authentication

Operate 3

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: wikidata
name: Wikidata
description: Wikidata is a free, collaborative, multilingual knowledge graph hosted by the Wikimedia Foundation. It provides
  structured linked data for Wikipedia and other Wikimedia projects, as well as a public platform for anyone to read and edit.
  Wikidata exposes several APIs including a Wikibase REST API for entity read/write operations, the MediaWiki Action API for
  batch entity retrieval and editing, a SPARQL endpoint for complex graph queries, Linked Data URIs for individual entity
  access in multiple RDF formats, a real-time Server-Sent Events stream for change monitoring, and full database dumps for
  bulk data processing.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/wikidata.png
tags:
- Knowledge Graph
- Linked Data
- Open Data
- Semantic Web
- SPARQL
- Wikipedia
created: '2025-01-01'
modified: '2026-05-19'
url: https://raw.githubusercontent.com/api-evangelist/wikidata/refs/heads/main/apis.yml
specificationVersion: '0.23'
apis:
- aid: wikidata:mediawiki-action-api
  name: MediaWiki Action API
  description: The MediaWiki Action API provides batch entity retrieval, editing, and search for Wikidata via wbgetentities,
    wbsearchentities, wbeditentity, and other actions. Supports up to 50 entities per request. Accessible at wikidata.org/w/api.php.
  humanURL: https://www.mediawiki.org/wiki/Wikibase/API
  baseURL: https://www.wikidata.org/w/api.php
  tags:
  - MediaWiki
  - Entity Retrieval
  - Search
  tags_raw:
  - MediaWiki
  - Batch Operations
  - Entity Retrieval
  - Search
  properties:
  - type: Documentation
    url: https://www.mediawiki.org/wiki/Wikibase/API
  - type: SDKs
    url: https://pypi.org/project/pywikibot/
    title: Pywikibot (Python)
  - type: SDKs
    url: https://www.npmjs.com/package/wikibase-sdk
    title: wikibase-sdk (JavaScript)
  - type: SDKs
    url: https://www.wikidata.org/wiki/Wikidata:Tools/Wikidata_Toolkit
    title: Wikidata Toolkit (Java)
- aid: wikidata:sparql-query-service
  name: SPARQL Query Service
  description: The Wikidata Query Service provides a SPARQL 1.1 endpoint at query.wikidata.org for running complex graph queries
    over the full Wikidata knowledge base. Supports federated queries, GeoSPARQL, and time-aware queries. Data is CC0 licensed.
  humanURL: https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service
  baseURL: https://query.wikidata.org/sparql
  tags:
  - SPARQL
  - Graph Query
  - Linked Data
  - Open Data
  properties:
  - type: Documentation
    url: https://www.mediawiki.org/wiki/Wikidata_Query_Service/User_Manual
  - type: APIReference
    url: https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/queries/examples
- aid: wikidata:linked-data-interface
  name: Linked Data Interface
  description: The Wikidata Linked Data Interface provides individual entity data via content negotiation at http://www.wikidata.org/entity/{QID}.
    Supports JSON, JSON-LD, RDF/XML, Turtle, and N-Triples output formats. No authentication required.
  humanURL: https://www.wikidata.org/wiki/Wikidata:Data_access#Linked_Data_Interface
  baseURL: https://www.wikidata.org/entity
  tags:
  - Linked Data
  - RDF
  - JSON-LD
  - Content Negotiation
  properties:
  - type: Documentation
    url: https://www.wikidata.org/wiki/Wikidata:Data_access#Linked_Data_Interface
- aid: wikidata:event-stream
  name: Recent Changes Event Stream
  description: The Wikimedia Event Stream provides real-time Server-Sent Events (SSE) for Wikidata changes, revision creations,
    and page events. Available at stream.wikimedia.org. Ideal for monitoring Wikidata edits in near-real-time.
  humanURL: https://wikitech.wikimedia.org/wiki/Event_Platform/EventStreams
  baseURL: https://stream.wikimedia.org/v2/stream
  tags:
  - Event Streaming
  - Real-Time
  - Server-Sent Events
  - Change Detection
  tags_raw:
  - Event Streaming
  - Real-time
  - Server-Sent Events
  - Change Detection
  properties:
  - type: Documentation
    url: https://wikitech.wikimedia.org/wiki/Event_Platform/EventStreams
- aid: wikidata:wikidata-descriptions-api
  name: Wikidata Descriptions API
  description: Description management
  humanURL: https://www.wikidata.org/wiki/Wikidata:REST_API
  baseURL: https://www.wikidata.org/w/rest.php/wikibase/v0
  tags:
  - Descriptions
  properties:
  - type: OpenAPI
    url: openapi/wikidata-descriptions-api-openapi.yml
  - type: Documentation
    url: https://www.wikidata.org/wiki/Wikidata:REST_API
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/wikidata/refs/heads/main/json-schema/wikidata-entity-schema.json
  - type: JSONLD
    url: https://raw.githubusercontent.com/api-evangelist/wikidata/refs/heads/main/json-ld/wikidata-context.jsonld
- aid: wikidata:wikidata-items-api
  name: Wikidata Items API
  description: Wikidata item (Q-entity) operations
  humanURL: https://www.wikidata.org/wiki/Wikidata:REST_API
  baseURL: https://www.wikidata.org/w/rest.php/wikibase/v0
  tags:
  - Item
  tags_raw:
  - Items
  properties:
  - type: OpenAPI
    url: openapi/wikidata-items-api-openapi.yml
  - type: Documentation
    url: https://www.wikidata.org/wiki/Wikidata:REST_API
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/wikidata/refs/heads/main/json-schema/wikidata-entity-schema.json
  - type: JSONLD
    url: https://raw.githubusercontent.com/api-evangelist/wikidata/refs/heads/main/json-ld/wikidata-context.jsonld
- aid: wikidata:wikidata-labels-api
  name: Wikidata Labels API
  description: Label management
  humanURL: https://www.wikidata.org/wiki/Wikidata:REST_API
  baseURL: https://www.wikidata.org/w/rest.php/wikibase/v0
  tags:
  - Labels
  properties:
  - type: OpenAPI
    url: openapi/wikidata-labels-api-openapi.yml
  - type: Documentation
    url: https://www.wikidata.org/wiki/Wikidata:REST_API
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/wikidata/refs/heads/main/json-schema/wikidata-entity-schema.json
  - type: JSONLD
    url: https://raw.githubusercontent.com/api-evangelist/wikidata/refs/heads/main/json-ld/wikidata-context.jsonld
- aid: wikidata:wikidata-properties-api
  name: Wikidata Properties API
  description: Wikidata property (P-entity) operations
  humanURL: https://www.wikidata.org/wiki/Wikidata:REST_API
  baseURL: https://www.wikidata.org/w/rest.php/wikibase/v0
  tags:
  - Properties
  properties:
  - type: OpenAPI
    url: openapi/wikidata-properties-api-openapi.yml
  - type: Documentation
    url: https://www.wikidata.org/wiki/Wikidata:REST_API
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/wikidata/refs/heads/main/json-schema/wikidata-entity-schema.json
  - type: JSONLD
    url: https://raw.githubusercontent.com/api-evangelist/wikidata/refs/heads/main/json-ld/wikidata-context.jsonld
- aid: wikidata:wikidata-statements-api
  name: Wikidata Statements API
  description: Statement (claim) operations
  humanURL: https://www.wikidata.org/wiki/Wikidata:REST_API
  baseURL: https://www.wikidata.org/w/rest.php/wikibase/v0
  tags:
  - Statements
  properties:
  - type: OpenAPI
    url: openapi/wikidata-statements-api-openapi.yml
  - type: Documentation
    url: https://www.wikidata.org/wiki/Wikidata:REST_API
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/wikidata/refs/heads/main/json-schema/wikidata-entity-schema.json
  - type: JSONLD
    url: https://raw.githubusercontent.com/api-evangelist/wikidata/refs/heads/main/json-ld/wikidata-context.jsonld
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/wikidata/overview
- type: AgenticAccess
  url: agentic-access/wikidata-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/wikidata-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/wikidata-domain-security.yml
- type: Authentication
  url: authentication/wikidata-authentication.yml
- type: OAuthScopes
  url: scopes/wikidata-scopes.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/wikidata-wf
- type: Website
  url: https://www.wikidata.org/
- type: Portal
  url: https://www.wikidata.org/wiki/Wikidata:Data_access
- type: Documentation
  url: https://www.wikidata.org/wiki/Wikidata:Data_access
- type: GitHubOrganization
  url: https://github.com/wikimedia
- type: GitHubRepository
  url: https://github.com/wikimedia/mediawiki
- type: TermsOfService
  url: https://foundation.wikimedia.org/wiki/Terms_of_Use
- type: PrivacyPolicy
  url: https://foundation.wikimedia.org/wiki/Privacy_policy
- type: Support
  url: https://www.wikidata.org/wiki/Wikidata:Contact_the_development_team
- type: Blog
  url: https://blog.wikimedia.org/
- type: StatusPage
  url: https://www.wikimediastatus.net/
- type: RateLimits
  url: https://www.mediawiki.org/wiki/API:Etiquette
- type: Authentication
  url: https://www.mediawiki.org/wiki/OAuth/For_Developers
- type: SpectralRules
  url: https://raw.githubusercontent.com/api-evangelist/wikidata/refs/heads/main/rules/wikidata-spectral-rules.yml
- type: Vocabulary
  url: https://raw.githubusercontent.com/api-evangelist/wikidata/refs/heads/main/vocabulary/wikidata-vocabulary.yaml
- type: Features
  data:
  - name: Multilingual Support
    description: All entities support labels, descriptions, and aliases in hundreds of languages via BCP 47 language codes.
  - name: Structured Statements
    description: Every claim is modeled as a statement with property, value, rank, qualifiers, and references for full provenance.
  - name: Open License
    description: All Wikidata content is released under CC0 1.0 Universal (Public Domain) — no attribution required.
  - name: SPARQL Graph Queries
    description: Complex multi-hop queries over 100M+ entities via SPARQL 1.1 at query.wikidata.org with GeoSPARQL and time
      extensions.
  - name: Real-Time Event Streaming
    description: Server-Sent Events at stream.wikimedia.org deliver real-time change notifications for Wikidata edits.
  - name: Multiple Serialization Formats
    description: Entities available as JSON, JSON-LD, RDF/XML, Turtle, and N-Triples via content negotiation on Linked Data
      URIs.
  - name: Wikibase Federation
    description: Wikidata is an instance of Wikibase; federated SPARQL queries can cross Wikibase instances including Wikimedia
      Commons.
  - name: Database Dumps
    description: Full JSON and RDF/TTL database dumps refreshed weekly at dumps.wikimedia.org for local bulk processing.
- type: UseCases
  data:
  - name: Knowledge Graph Augmentation
    description: Enrich private datasets with structured Wikidata facts — entities, dates, relationships — via item and SPARQL
      queries.
  - name: Fact-Checking and Verification
    description: Retrieve canonical statements with references to verify biographical, geographic, or scientific claims in
      text.
  - name: Wikipedia Infobox Data
    description: Power Wikipedia infoboxes and sister-project templates with live Wikidata entity data via the MediaWiki Action
      API.
  - name: NLP Entity Linking
    description: Resolve named entities from natural language to Wikidata Q-IDs using wbsearchentities and SPARQL label lookups.
  - name: Semantic Search
    description: Build ontology-aware search systems using Wikidata's P31 (instance of) and P279 (subclass of) property hierarchies.
  - name: Change Monitoring
    description: Track real-time edits to Wikidata entities relevant to a domain using the SSE event stream.
  - name: Linked Open Data Publishing
    description: Publish organizational data as Linked Open Data by aligning custom schemas to Wikidata properties and Q-IDs.
- type: Integrations
  data:
  - name: Wikipedia
    description: Wikidata powers structured data for all Wikipedia language editions via Lua modules and infobox templates.
  - name: Wikimedia Commons
    description: Media files on Wikimedia Commons are described using Wikidata items via structured data on Commons.
  - name: OpenStreetMap
    description: OSM features are linked to Wikidata via the wikidata=* tag, enabling geographic entity cross-referencing.
  - name: Scholia
    description: Scholia is a Wikidata-based scholarly profile service that visualizes publications, authors, and institutions.
  - name: Reasonator
    description: Reasonator renders human-readable pages for Wikidata items, integrating maps, timelines, and media.
  - name: Mix'n'match
    description: Mix'n'match links Wikidata items to external databases (VIAF, ORCID, GND, etc.) for authority control.
  - name: OpenRefine
    description: OpenRefine has a Wikidata reconciliation service and can batch-upload tabular data as Wikidata statements.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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