Build apps. Connect families.

FamilySearch offers developers a way to integrate web, desktop, and mobile apps with its collaborative Family Tree. Learn more.

Getting Started includes developer sign-up, community forum (GetHelp), getting started instructions, app key registration and tracking.

Change Log provides changes to documentation for API, Certification, Guides,and Tools. Review the recent changes often.

Email Support at devsupport@familysearch.org with questions or comments about this site.

Showcase

Check out the latest creations of fellow developers using the FamilySearch API.

6 finalists, 5 renowned judges, and 1 large audience. $100K in prizes! The annual RootsTech Innovator Showdown is a great opportunity to get rewarded for the projects you are creating. [Enter the Showdown]

Sample App

The Sample App demonstrates common API uses cases such as searching for a person and creating people and relationships.