# Official sources on Apizie

> Apizie serves data from each publisher's own public API, normalized into `{ project, data, source, timestamp }`. The `source` block (publisher, official URL, retrieval time, licence, attribution) is on every response.

## U.S. Treasury Fiscal Data
- Publisher: U.S. Department of the Treasury
- Covers: Par yield curve, federal debt, auctions, average interest rates and the daily Treasury statement
- Project: `finance:us-treasury` (5 endpoints): https://apizie.tech/sources/us-treasury
- Licence: Public U.S. government information (https://fiscaldata.treasury.gov/about-us/)
- Example: `GET https://apizie.tech/v1/finance:us-treasury/yield-curve?length=5`

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