Wikibase Hosting
A production Wikibase for your institution's linked data: fully managed, hosted in the EU, and yours to export at any time.
Our Wikibase clients include
Who it is for
Objects, people, places and works as linked entities, with sources and labels in every language your users need. Kunstmuseum Den Haag runs its collection data on our hosting, query service included.
Model your domain with your own properties, cite every statement, and let your team and the public query the graph with SPARQL. Kunstenpunt's knowledge graph of the Flemish arts runs on our hosting.
Publish reusable open data: an open API, entity data as JSON and RDF, and a query interface anyone can use without an account.
Why Wikibase
Items and properties, with qualifiers and references on every statement.
Labels, descriptions and aliases in any language, for every entity.
A SPARQL endpoint answers questions across your whole data set, from a query UI or from your own applications.
Full version history with per-statement diffs, and accounts, groups, permissions, discussion pages and watchlists for working together.
Every entity can be read and written through the MediaWiki and Wikibase APIs.
The same software and data model as Wikidata, so its documentation, know-how and many of its tools apply to your data.
Still comparing? Read Is Wikibase right for your project?
FAIR and open
Wikibase makes your data FAIR (findable, accessible, interoperable, reusable) through open standards.
Every item and property has a stable ID and URI you can cite and link to.
Every entity is served as JSON and RDF, Wikibase Export writes selected entities to CSV, and full JSON or RDF dumps are available on request.
Query your data and Wikidata together, and link your items to their Wikidata IDs.
The data is yours to take: open formats and a full export whenever you leave.
What you get
Included
Wikibase Repository on MediaWiki, with templates and Lua.
SPARQL endpoint and query UI, updated live from your edits.
EDTF dates, local media, CSV export, automated values, entity schemas.
Elasticsearch-backed search across items, properties and pages.
Configure Wikibase and enable extensions yourself.
Add-ons
Built for production
Single-tenant: nothing is shared with other customers.
Sized for your data set, with the query timeout set for your workload.
MediaWiki, Wikibase and the query service upgraded by us, security updates applied as they are released.
Encrypted offsite backups, 24/7 monitoring and a 99.9% availability commitment.
Data residency in the EU by default, other regions on request, and our DPA.
You administer the wiki and the admin panel. We deploy the extensions and settings you need.
You get everything from our standard MediaWiki hosting, including security and data protection and the service level agreement and data processing agreement.
Why host Wikibase with us
Our team includes original Wikibase developers. Since 2012 we have helped many organisations adopt Wikibase, built key extensions for it, and run Wikibases with over a million pages in production.
We created Wikibase extensions for our clients, many of them popular across the Wikibase ecosystem, including Wikibase EDTF, Wikibase Local Media, Wikibase Export, Wikibase RDF, Wikibase Faceted Search, Automated Values and more.
Data modeling, data import, integrations and custom development and branding, from the same team that runs your wiki.
Customer Testimonials
We host a very large wikibase instance of more than 1.000.000 pages with Professional Wiki. They not only provide reliable hosting and performant query services, but also support us in making the right modeling and technological choices.
Working with Professional Wiki is synonymous with efficient communication, excellent responsiveness, and reliable deliverables. We are 100% satisfied.
We wished to display SPARQL query results in our Wikibase and commissioned Professional Wiki to develop a solution. They created a flexible extension that is just what we needed.
Pricing
From 399 EUR per month
Wikibase hosting, query service included.
Larger data sets need more infrastructure, and add-ons are priced with your quote. Standard hosting terms and the Enterprise option are on the hosting page.
Add-ons
Priced separately, on top of your plan.
Create and edit items in bulk from spreadsheets and CSV files.
Constraint checks on your properties, with the violations exportable for cleanup.
Your users filter items by property values in a search UI you configure.
A reconciliation service that lets OpenRefine match and upload data to your Wikibase, set up on request.
We map your existing data to the Wikibase data model and import it, from spreadsheets to legacy databases.
Your users log in with Microsoft, Google, Okta, or another OpenID Connect identity provider.
A copy of your encrypted backups goes to storage you control.
Extensions, integrations, and features built for your wiki.
AI and integration
Both are add-ons. Nothing AI-related runs on your wiki unless you order it.
Lets AI tools such as Claude and ChatGPT search entities, read an entity, run SPARQL queries, and create or edit items in your Wikibase. We run the server next to your wiki.
Add-onYour users ask questions in plain language and get answers grounded in your wiki, with sources.
Add-onMigrating an existing Wikibase
We move your Wikibase to our hosting with your data, history and user accounts intact. Standard migrations take about three business days.
Moving from Wikibase Cloud
We host Wikibases of any licence or size, and the migration often costs nothing extra. For a quote, send us your wiki's address.
When you are ready to move, ask Wikimedia Deutschland for a full database dump with hashed passwords and email addresses, so your users can log in as before. The dump is a snapshot, so pause editing once you request it. Share it with us and we do the rest.
We serve your wiki on your own domain or on a subdomain such as yourwiki.wikibase.wiki.
Frequently asked questions
Resources
Documentation, community and the software itself.
Extensions for search, validation, media and export.
Query, import and enrich with the MediaWiki MCP Server.
Strengths, limitations and typical use cases.
How the two compare and when to pick which.
Hosting, development and consulting from one team.