Add to ClaudeFact Lookup retrieves structured, verifiable facts about any person, place, company, or concept from a database of over 100 million entities. Ask about founding dates, population, headquarters, CEOs, coordinates, awards — and get authoritative answers with source references.
It goes beyond simple Q&A. The advanced query skill lets you run structured questions across the knowledge graph: list all Nobel Prize winners from a country, rank cities by population, find all subsidiaries of a company, or compare two entities on any shared property. Every answer traces back to a citable source.
What you can do
- search — find entities by keyword and get their IDs, descriptions, and links
- get_entity — retrieve up to 60 structured facts about any entity by name or ID
- sparql_query — run advanced multi-entity queries for lists, rankings, and comparisons
Who it's for
Researchers, journalists, writers, developers building knowledge-enriched applications, and anyone who needs fast, citable answers to factual questions.
How to use it
- Call search with a keyword to find the right entity and get its ID.
- Call get_entity with the entity name or ID to get the full fact sheet.
- For more complex questions — "list the 10 most populous cities in Germany" — use sparql_query directly.
Getting started
Call get_entity with any well-known name — a city, company, or person — to see what structured data is available. No setup needed.
