specification: API Commons Plans
specificationVersion: '0.1'
schema: https://raw.githubusercontent.com/api-evangelist/interface-research/main/schema/api-commons.yml#/$defs/Plans
provider: U.S. Treasury Fiscal Data
providerId: fiscaldata
created: '2026-07-11'
modified: '2026-07-11'
reconciled: false
tags:
- Government Data
- Treasury
- Open Data
- Public Domain
- Free
- Plans
description: >-
  The U.S. Treasury Fiscal Data API is completely free and public. There is no
  registration, no API key, no authentication, and no paid tier. All datasets -
  the national debt, average interest rates, daily and monthly Treasury
  statements, exchange rates, and securities auctions - are served at no cost.
  The underlying data is a U.S. Government work in the public domain and may be
  used, reproduced, and redistributed freely. There is a single access model:
  open and free for everyone.
notes: >-
  As a federal government API there is no billing, no account, and no commercial
  plan structure. The one caveat is that data availability is subject to federal
  government operations (for example, a government shutdown or scheduled
  maintenance can delay report updates). No SLA is offered.
sources:
- https://fiscaldata.treasury.gov/api-documentation/
- https://fiscaldata.treasury.gov/
- https://fiscaldata.treasury.gov/about-us/
plans:
- id: fiscaldata-open-free
  name: Open Public Access
  type: free
  description: >-
    Free, unauthenticated, public access to every Fiscal Data dataset endpoint.
    No API key or registration is required. Responses are available as JSON,
    CSV, or XML with full field selection, filtering, sorting, and pagination.
    Data is in the public domain.
  entries:
  - label: API Requests
    name: api_requests
    type: usage
    metric: requests
    limit: -1
    timeFrame: month
    geo: global
    unit: 1
    price: free (public domain government data; no API key)
    userMultiplied: false
  elements:
  - name: All Datasets
  - name: JSON, CSV, and XML Formats
  - name: Field Selection, Filter, Sort, Pagination
  - name: No Authentication Required
  - name: Public Domain Data Reuse
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com