Open data MCP servers connect your AI to public datasets, government feeds, and civic APIs. Pull statistics, geospatial layers, and reference tables — strong for research, journalism, and apps that need authoritative public facts.
Open data MCP servers wrap APIs that publish non-secret information: census figures, weather archives, transit schedules, and similar sources. Authentication is often minimal, but respect each publisher's attribution requirements.
Many sources are free; some require API keys with usage tiers. Read each provider's terms — throttling and attribution rules still apply even when the underlying data is public.
Open data helps with context, not legal determinations. Verify freshness, jurisdiction, and official sources before basing regulated decisions solely on tool output.