First Street API

Comprehensive application programming interfaces for quantifying physical climate risk

Welcome to the First Street API documentation!

This documentation's context is based on First Street's latest global and enterprise offerings.

Documentation for our v2 US Domestic only API still exists if needed.

If you have any questions, please contact [e-mail] or your account executive.

Welcome!

First Street provides three separate APIs for use. The Climate Risk API which provides physical climate risk data to any point on Earth. The Enterprise API which provides an aggregated view of physical climate risk for a given portfolio. And the Raster Map API which provides a visual raster layer of various climate perils.

Access Information

Request for more information on how you can integrate the First Street Global API within your solution.

Vintage Information

The First Street API is currently serving Vintage 4 as the default version since July 1, 2026.