FRED
FreeLiveLast verified 24 Sept 2026
Hundreds of thousands of US and global economic time series (GDP, rates, employment) from the St. Louis Fed.
Example request
curl -s 'https://api.stlouisfed.org/fred/series/observations?series_id=GNPCA&file_type=json&api_key=$API_KEY'
Free tier, in plain English
Free with a self-registered API key; the docs don't publish a numeric rate limit.
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