Smithsonian Open Access
FreeDegradedNot yet verified
Search and metadata for 11M+ CC0-licensed Smithsonian museum and archive collection records.
Example request
curl -s 'https://api.si.edu/openaccess/api/v1.0/search?q=art&api_key=$API_KEY'
Free tier, in plain English
Free API key via a signup form; the live API enforces a rate limit whose exact window isn't published.
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