US Treasury

Treasury yields, national debt and exchange rates

US Treasury provides official daily interest rates and national debt figures for requested or latest available dates, plus quarterly reporting exchange rates using the latest preceding quarter when needed.

Get national debt

Get US national debt for a date or the latest published day. Dates without a record use the previous published day; early records may lack the debt breakdown.

Your information

More options

DateOptional

Day to look up in YYYY-MM-DD; leave blank to use the latest published day. Example: 2024-07-04.

1 credit per completed run

The same inputs also work from your code or an AI assistant. See For developers.

Example results

Total public debt outstanding$40.1TPublished Sep 25, 2026

Debt held by the public: $32.4T
Intragovernmental holdings: $7.7T

View Treasury source

About the US Treasury tool

US Treasury returns daily Treasury par yields for a requested date or the latest available date; the date is optional.

Get national debt returns published debt amounts for a requested date or the latest published day; the date is optional.

Get reporting exchange rates returns quarterly rates for a country or currency and date; the country or currency is required.

Built from home.treasury.gov. Last checked Sep 30, 2026.

Actions

Get national debt

1 credit

Get US national debt for a date or the latest published day. Dates without a record use the previous published day; early records may lack the debt breakdown.

What you provide

Field	Type	Required	Description
Date`date`	Date	Optional	Day to look up in YYYY-MM-DD; leave blank to use the latest published day. Example: 2024-07-04.Example: 2024-07-04

What you get

Field	Type	Description
Date`date`	Date	Published date used for this record.Example: 2026-09-25
Currency`currency`	Text	Currency of the debt amounts.Example: USD
Page URL`page_url`	Link	Treasury page for Debt to the Penny.Example: https://fiscaldata.treasury.gov/datasets/debt-to-the-penny/
Debt Held by the Public`debt_held_by_the_public`	Number	Debt held by the public in US dollars, or null if not reported.Example: 32385874118414.11
Intragovernmental Holdings`intragovernmental_holdings`	Number	Intragovernmental holdings in US dollars, or null if not reported.Example: 7711304001336.8
Total Public Debt Outstanding`total_public_debt_outstanding`	Number	Total public debt outstanding in US dollars.Example: 40097178119750.91

Example result

For

JSON

{
  "date": "2026-09-25",
  "currency": "USD",
  "page_url": "https://fiscaldata.treasury.gov/datasets/debt-to-the-penny/",
  "debt_held_by_the_public": 32385874118414.11,
  "intragovernmental_holdings": 7711304001336.8,
  "total_public_debt_outstanding": 40097178119750.91
}

Get reporting exchange rates

1 credit

Get the U.S. Treasury quarterly reporting exchange rate for a country or currency on a given date. If that quarter has no published record, uses the latest preceding quarter. For shared currency names, the Euro is returned for Euro Zone; other shared names use one matching country.

What you provide

Field	Type	Required	Description
Date`date`	Date	Optional	Date in YYYY-MM-DD, for example 2025-03-15; defaults to today.Example: 2025-03-15
Country or Currency`country_or_currency`	Text	Required	Country or currency name, for example Japan, Mexico, or euro.Example: Japan

What you get

Field	Type	Description
Country`country`	Text	Country or currency area listed by Treasury.Example: Japan
Currency`currency`	Text	Currency name listed by Treasury.Example: Yen
Page URL`page_url`	Text	Treasury dataset page.Example: https://fiscaldata.treasury.gov/datasets/treasury-reporting-rates-exchange/
Record Date`record_date`	Date	Quarter-end date of the Treasury record.Example: 2026-06-30
Effective Date`effective_date`	Date	Date the rate became effective.Example: 2026-06-30
Currency Per (USD)`currency_per_usd`	Number	Units of the currency per 1 U.S. dollar.Example: 162.38

Example result

For Country or Currency: Japan

JSON

{
  "country": "Japan",
  "currency": "Yen",
  "page_url": "https://fiscaldata.treasury.gov/datasets/treasury-reporting-rates-exchange/",
  "record_date": "2026-06-30",
  "effective_date": "2026-06-30",
  "currency_per_usd": 162.38
}

Get treasury yields

1 credit

Get official daily Treasury par yield curve rates for a date, or the latest available date. Non-publishing days use the previous published date; maturities not published for a date are null.

What you provide

Field	Type	Required	Description
Date`date`	Date	Optional	Requested calendar date (YYYY-MM-DD), such as 2024-01-01. Defaults to today and returns the latest published date on or before it.Example: 2026-09-27

What you get

Field	Type	Description
Date`date`	Date	Publication date for these rates.Example: 2026-09-25
Page URL`page_url`	Text	Official Treasury link to this year’s published rates.Example: https://home.treasury.gov/resource-center/data-chart-center/interest-rates/dail…
Yield 1 Year`yield_1_year`	Number	Treasury yield in percent, or null when not published.Example: 4.5
Yield 2 Year`yield_2_year`	Number	Treasury yield in percent, or null when not published.Example: 4.81
Yield 3 Year`yield_3_year`	Number	Treasury yield in percent, or null when not published.Example: 4.94
Yield 5 Year`yield_5_year`	Number	Treasury yield in percent, or null when not published.Example: 4.98
Yield 7 Year`yield_7_year`	Number	Treasury yield in percent, or null when not published.Example: 5.06
Yield 10 Year`yield_10_year`	Number	Treasury yield in percent, or null when not published.Example: 5.17
Yield 1 Month`yield_1_month`	Number	Treasury yield in percent, or null when not published.Example: 4.04
Yield 20 Year`yield_20_year`	Number	Treasury yield in percent, or null when not published.Example: 5.54
Yield 2 Month`yield_2_month`	Number	Treasury yield in percent, or null when not published.Example: 4.2
Yield 30 Year`yield_30_year`	Number	Treasury yield in percent, or null when not published.Example: 5.49
Yield 3 Month`yield_3_month`	Number	Treasury yield in percent, or null when not published.Example: 4.24
Yield 4 Month`yield_4_month`	Number	Treasury yield in percent, or null when not published.Example: 4.32
Yield 6 Month`yield_6_month`	Number	Treasury yield in percent, or null when not published.Example: 4.33
Yield 1 5 Month`yield_1_5_month`	Number	Treasury yield in percent, or null when not published.Example: 4.14

Example result

For Date: 2026-09-27

JSON

{
  "date": "2026-09-25",
  "page_url": "https://home.treasury.gov/resource-center/data-chart-center/interest-rates/daily-treasury-rates.csv/2026/all?type=daily_treasury_yield_curve&page&_format=csv",
  "yield_1_year": 4.5,
  "yield_2_year": 4.81,
  "yield_3_year": 4.94,
  "yield_5_year": 4.98,
  "yield_7_year": 5.06,
  "yield_10_year": 5.17,
  "yield_1_month": 4.04,
  "yield_20_year": 5.54,
  "yield_2_month": 4.2,
  "yield_30_year": 5.49,
  "yield_3_month": 4.24,
  "yield_4_month": 4.32,
  "yield_6_month": 4.33,
  "yield_1_5_month": 4.14
}

For developers

Call it from your code with one request. Change the values in input to run it on new data. To get an API key, open Developers at the bottom of Studio, turn on Developer mode and go to API keys.

cURL

curl 'https://api.fous.com/v1/query' \
  --fail-with-body --silent --show-error --max-time 180 \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H 'Content-Type: application/json' \
  --data-raw '{
  "api": "@us-treasury",
  "visibility": "public",
  "operation": "get_national_debt",
  "version": 1,
  "input": {},
  "response": {
    "format": "json"
  }
}'

What you can do with it

Compare Treasury yields across maturities and dates
Track changes in published national debt
Convert U.S. dollar amounts using Treasury reporting rates
Check the effective date of a currency rate

Questions about US Treasury

Can I run it with my own inputs?

Yes. Change the inputs in Studio and press Run, or send new inputs from your code, or ask a connected AI assistant.

Can I call this US Treasury tool as an API?

Yes. Send a POST request to /v1/query with your Fous API key and the inputs, and get JSON back.

How much does it cost?

Each completed run costs 1 credit. Failed runs without a completed receipt are free; completed work can remain charged if delivery is interrupted. With pay as you go, a credit costs 1¢. Monthly plans cost less per credit.

Do I need a US Treasury account?

No. You only need a Fous account.

How current is the data?

Fous gets the data from home.treasury.gov when you run it. Some results are reused for up to 24 hours, and results that use your account or key are never reused. It was last verified on Sep 30, 2026.