# FIADB-API (EVALIDator)

**Canonical:** https://apis.io/apis/forest-service/fiadb-api/  
**Provider:** Forest Service — https://apis.io/providers/forest-service/  
**Base URL:** https://apps.fs.usda.gov/fiadb-api  
**Documentation:** https://apps.fs.usda.gov/fiadb-api/

FIADB-API (EVALIDator) is one of 5 APIs that [Forest Service](https://apis.io/providers/forest-service/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Forest-Inventory, Research Data, and Statistics. The published artifact set on APIs.io includes API documentation, an API reference, and a support channel.

The Forest Inventory and Analysis Database API, the machine surface behind the EVALIDator web application. A single GET or POST to /fullreport returns population estimates with standard errors, variances and plot counts, grouped by row, column and optional page attributes, for one or more state/year evaluations. Every classed parameter has a live value dictionary at /fullreport/parameters/<name>. Free, anonymous, CORS-open, and documented with worked Python and R examples.

## Machine-readable artifacts (6)

- **Documentation** — https://apps.fs.usda.gov/fiadb-api/
- **APIReference** — https://apps.fs.usda.gov/fiadb-api/
- **Console** — https://apps.fs.usda.gov/fiadb-api/evalidator?newForm=True
- **Support** — mailto:SM.FS.FIA.Digital@usda.gov
- **AgentSkill** — https://raw.githubusercontent.com/api-evangelist/forest-service/refs/heads/main/skills/forest-service-forest-inventory-estimate.md
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/forest-service/refs/heads/main/apis.yml

## Other Forest Service APIs (4)

- [Forest Service Research Data Archive Web Service](https://apis.io/apis/forest-service/research-data-archive/)
- [FSGeodata Enterprise Data Warehouse Map Services](https://apis.io/apis/forest-service/fsgeodata-edw-map-services/)
- [FSGeodata Research Data Warehouse Map Services](https://apis.io/apis/forest-service/fsgeodata-rdw-map-services/)
- [U.S. Forest Service Geospatial Data Discovery (DCAT-US catalog)](https://apis.io/apis/forest-service/geospatial-data-discovery/)

## Tags

Forest-Inventory, Research Data, Statistics

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