# 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.

## SEC EDGAR
- Publisher: U.S. Securities and Exchange Commission
- Covers: Filings, company profiles and XBRL financial facts for every SEC registrant
- Project: `finance:sec-edgar` (4 endpoints): https://apizie.tech/sources/sec-edgar
- Licence: Public U.S. government information, free to access (https://www.sec.gov/os/accessing-edgar-data)
- Example: `GET https://apizie.tech/v1/finance:sec-edgar/concept?company=AAPL&tag=Revenues`

## FRED
- Publisher: Federal Reserve Bank of St. Louis
- Covers: Economic time series: interest rates, inflation, GDP, employment and more, with vintage history
- Project: `finance:fred` (10 endpoints): https://apizie.tech/sources/fred
- Licence: Free to use under the FRED API Terms of Use; series marked as copyrighted by a third party are excluded (https://fred.stlouisfed.org/docs/api/terms_of_use.html)
- This product uses the FRED® API but is not endorsed or certified by the Federal Reserve Bank of St. Louis.
- Example: `GET https://apizie.tech/v1/finance:fred/series-observations?series=FEDFUNDS&length=12`

## ECB Data Portal
- Publisher: European Central Bank
- Covers: Euro reference exchange rates, policy rates, HICP inflation and any ECB SDMX series
- Project: `finance:ecb` (5 endpoints): https://apizie.tech/sources/ecb
- Licence: Reusable free of charge with the source acknowledged (https://www.ecb.europa.eu/services/disclaimer/html/index.en.html)
- Example: `GET https://apizie.tech/v1/finance:ecb/key-rates`

## 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`

## GLEIF LEI
- Publisher: Global Legal Entity Identifier Foundation
- Covers: Legal Entity Identifiers: legal names, addresses, registration status and parent companies
- Project: `finance:gleif` (1 endpoints): https://apizie.tech/sources/gleif
- Licence: CC0 1.0 (no rights reserved). Apizie is not affiliated with or endorsed by GLEIF (https://www.gleif.org/en/meta/lei-data-terms-of-use)
- Example: `GET https://apizie.tech/v1/finance:gleif/lei?query=Apple%20Inc&length=3`

## World Bank Open Data
- Publisher: The World Bank
- Covers: Development and macro indicators for every country: GDP, inflation, population, debt and more
- Project: `finance:worldbank` (1 endpoints): https://apizie.tech/sources/world-bank
- Licence: Mostly CC BY 4.0, attribution required (check each dataset's licence) (https://datacatalog.worldbank.org/all-licenses)
- Example: `GET https://apizie.tech/v1/finance:worldbank/indicator?country=US&indicator=NY.GDP.MKTP.CD&length=5`

Apizie is independent and not affiliated with or endorsed by the SEC, the Federal Reserve, the ECB, the U.S. Treasury, GLEIF or the World Bank.