Home / Market & alternative data
treasury-fiscaldata
Typed access to US Treasury debt, rates, and FX
What it is
A zero-dependency TypeScript client for the US Treasury FiscalData service, covering the debt to the penny, average interest rates on Treasury securities, official exchange rates, and the other endpoints on that API. Queries are typed, pages can be walked one row at a time, and a helper converts the text fields into numbers. Fixed-income developers and researchers who want keyless access to those accounting series are the audience. Every value arrives as text, a missing field is the literal null string, and some endpoints hold millions of rows, so a caller has to filter and convert before trusting a figure.
At a glance
Research onlyOur rating, based on popularity, maintenance and how ready it is for real use.
| Best for | Developers |
|---|---|
| Used for | Data source, Data analysis |
| Markets | Other markets |
| Stack | TypeScript |
| Learning curve | Easy to start |
| Practical value | Low practical value |
| Cost | Free and open source |
| Hardware | No GPU needed |
| Maintenance | Last commit 17 days ago |
GitHub stars, last 30 days
Daily snapshots since 2026-09-28 (up to 30 days): 0 over the period, now 2. Gaps mean no snapshot was taken that day.
Typed client for the US Treasury FiscalData API (debt, average interest rates, exchange rates) with pagination and filtering; no API key required.
Similar tools
Posted buy and sell rates at Uruguayan exchange houses
Typed client for US Treasury auctions and debt
Keyless client for SOFR and other reference rates
Python client for Brazilian Central Bank open-data APIs
Settled Korean closes and DART filings as daily files
Daily Korean foreign-flow ranks and sector indices