Fed Treasury
FreeLiveLast verified 24 Sept 2026
US Treasury data on federal debt, revenue, spending, interest rates, and savings bonds.
Example request
curl -g 'https://api.fiscaldata.treasury.gov/services/api/fiscal_service/v2/accounting/od/debt_to_penny?page[size]=1'
Free tier, in plain English
Fully open API with no account, key, or documented usage cap.
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