Starwell
give AI agents real statistics instead of made-up numbers
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What is Starwell?
Starwell is a verified data API that integrates official statistics from 29+ government and international agencies (World Bank, Eurostat, Statistics Canada, FRED, etc.) into a single REST API and MCP server. It enables AI agents and developers to query verified, cited data with natural language, preventing hallucinations by anchoring responses to official sources with full provenance.
Starwell pricing
Pricing model: Freemium
Free tier available (no card required); additional pricing tiers not displayed
Starwell pros
- Aggregates 29+ official statistical sources (96,590+ datasets, 55+ billion data points) with guaranteed provenance and citations
- Natural language query interface via REST API and MCP server—compare inflation across economies in a single request
- Every response includes full source attribution, license info, and verification status to prevent data misuse
- Free tier available with no credit card required
Starwell cons
- Limited to government and international statistical data—not a general-purpose knowledge base
- Requires familiarity with data terminology and available datasets for optimal queries
- Only 29 official sources currently indexed (though expanding weekly)
Frequently asked questions about Starwell
How does Starwell prevent AI hallucinations?
By returning only verified data from official sources with full provenance—every value cites its official table, license, and retrieval timestamp.
Can I query data from multiple countries at once?
Yes. You can join agencies in one question, e.g., compare inflation across the U.S., Canada, the Eurozone, and the UK in a single API call.
What data sources are included?
29 official sources including World Bank Open Data, Eurostat, Statistics Canada, U.S. FRED, Australian Bureau of Statistics, and others—96,590 datasets total.
What formats does Starwell support?
REST API (POST /v1/answer) and MCP server, both returning standardized JSON responses with metadata, citations, and verification status.