# FHFA House Price Index (HPI) API

**Canonical:** https://apis.io/apis/fhfa/fhfa-house-price-index-api/  
**Provider:** Federal Housing Finance Agency (FHFA) — https://apis.io/providers/fhfa/  
**Documentation:** https://www.fhfa.gov/data/hpi

FHFA House Price Index (HPI) API is one of 5 APIs that [Federal Housing Finance Agency (FHFA)](https://apis.io/providers/fhfa/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include House Price Index, Housing, CSV, JSON, and XML. The published artifact set on APIs.io includes API documentation.

The FHFA House Price Index (HPI) is a comprehensive, publicly available dataset measuring changes in single-family home values across all 50 states and over 400 American cities, with data extending back to the mid-1970s. The HPI uses a weighted repeat-sales methodology based on tens of millions of home sales and is available in CSV, JSON, and XML formats at monthly and quarterly intervals. Datasets include purchase-only indexes, all-transaction indexes incorporating appraisal data, expanded-data indexes adding FHA and county recorder data, and volatility parameters. Data is free and publicly accessible with attribution required under FHFA API Terms of Service.

## Machine-readable artifacts (8)

- **Documentation** — https://www.fhfa.gov/data/hpi
- **Datasets** — https://www.fhfa.gov/data/hpi/datasets
- **DataDownloadCSV** — https://www.fhfa.gov/hpi/download/monthly/hpi_master.csv
- **DataDownloadXML** — https://www.fhfa.gov/hpi/download/monthly/hpi_master.xml
- **DataDictionary** — https://www.fhfa.gov/sites/default/files/2023-09/HPI_dictionary.xls
- **SummaryTables** — https://www.fhfa.gov/data/hpi/summary-tables
- **Calculator** — https://www.fhfa.gov/hpi-calculator
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/fhfa/refs/heads/main/apis.yml

## Other Federal Housing Finance Agency (FHFA) APIs (4)

- [FHFA National Mortgage Database (NMDB) API](https://apis.io/apis/fhfa/fhfa-national-mortgage-database-api/)
- [FHFA Enterprise Public Use Database (PUDB) API](https://apis.io/apis/fhfa/fhfa-public-use-database-api/)
- [FHFA Conforming Loan Limits API](https://apis.io/apis/fhfa/fhfa-conforming-loan-limits-api/)
- [FHFA Uniform Appraisal Dataset (UAD) Aggregate Statistics API](https://apis.io/apis/fhfa/fhfa-uad-aggregate-statistics-api/)

## Tags

House Price Index, Housing, CSV, JSON, XML

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/fhfa/fhfa-house-price-index-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/fhfa/.