> ## Documentation Index
> Fetch the complete documentation index at: https://docs.boundaries.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Boundaries.io API

> Postal, neighborhood, and administrative boundary polygons as GeoJSON.

Boundaries.io returns boundary geometry for the US, Canada, and UK over a single REST call. Pick a region tab above for the full endpoint reference.


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.