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 9 API contracts indexed on the APIs.io network, including Descriptions API, Items API, Labels API, and 6 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 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

52.0/100 developing ▬ flat Agent 31/100 agent ready Front door AI 1/6 silent saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 8 Features 7 Use Cases

Knowledge Graph Linked Data Open Data Semantic Web SPARQL Wikipedia

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 52.0/100 · developing

Contract Quality 12.1 / 19

Developer Ergonomics 9.5 / 15

Access Clarity 3.9 / 15

Operational Transparency 3.6 / 10

Contract Governance 2.5 / 9

Discoverability 5.0 / 8

Regulatory Posture 6.0 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 31/100 · 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

Delegated User Identity 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/wikidata/"><img src="https://apis.io/badge/wikidata/card.svg" alt="Wikidata on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 26.3 — up to +14.7 composite points
Contract Quality scores 64.4 — up to +8.9 composite points
Contract Governance scores 27.3 — up to +8.7 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/wikidata/apis.yml: open an issue on github.com/api-evangelist/wikidata to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Obsidian Community Plugins (third-party APIs the Obsidian plugin ecosystem integrates)	unknown	2.5 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

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

Plan	Price
Public Free Access freemium	Free
Wikimedia Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

SPARQL Query Execution Timeout: 60 seconds per query
SPARQL Concurrent Queries: 5 concurrent queries
MediaWiki Action API maxlag Courtesy Throttle: 5 replication lag seconds

Compiled by API Evangelist, not yet checked against Wikidata's documentation. All 4 limits →

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

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Wikidata

SLA

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 — jsonschema 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 4

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

CodeOfConduct

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

Access & Security 6

Authentication, authorization, and security posture

SecurityPolicy

SecurityPolicy

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

OAuthScopes

Authentication

Operate 4

Status, limits, changes, and where to get help

IssueTracker

Support

StatusPage

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Plans

FinOps

TermsOfService

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
deliveryModel:
  model: saas
  license_evidence:
    not_product:
    - wikimedia/mediawiki
  open_source: unknown
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: low
  source:
  - openapi
  - pricing
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
position: Consuming
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: Plans
  url: plans/wikidata-plans-pricing.yml
- type: FinOps
  url: finops/wikidata-finops.yml
- type: IssueTracker
  url: https://github.com/wikimedia/mediawiki/issues
- type: SecurityPolicy
  url: https://github.com/wikimedia/mediawiki/blob/master/SECURITY
- type: CodeOfConduct
  url: https://github.com/wikimedia/mediawiki/blob/master/CODE_OF_CONDUCT.md
- 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

Wikidata API — frequently asked questions

Does Wikidata have an API?

Yes. APIs.io lists 9 APIs from Wikidata, including MediaWiki Action API, SPARQL Query Service and Linked Data Interface, and 6 more.

Is there an OpenAPI specification for the Wikidata API?

Yes. APIs.io indexes 5 OpenAPI specifications for Wikidata, each linked for download from this page.

How do I authenticate with the Wikidata API?

Wikidata documents its authentication (apiKey/oauth2 · 2 schemes). The details are profiled on APIs.io as Wikidata Authentication.

How much does the Wikidata API cost?

APIs.io lists 2 pricing plans for Wikidata, with each plan's price, limits and inclusions under Pricing on this page.

Is the Wikidata API ready for AI agents?

Wikidata has a Kin Score of 52.0 out of 100 (developing) and an Agent Readiness score of 31.3 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

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

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
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 provider

curl "https://apis.io/api/v1/providers/wikidata"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/wikidata/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/wikidata/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.