# FamilySearch

> Family trees for Worldwide. Access: Your own OAuth sign in, key needed. Terms checked November 1, 2026.

- Slug: familysearch
- Page: https://api.lineage.rexstjohn.com/sources/familysearch
- JSON: https://api.lineage.rexstjohn.com/v1/sources/familysearch
- Records: Family trees
- Places: Worldwide
- Years: Not stated by the source
- Access method: user_oauth
- Key required: yes
- Rate limit: none stated by the source
- Status: live
- Review: verified, checked by hand on 2026-11-01
- Homepage: https://www.familysearch.org/
- API docs: https://developers.familysearch.org/main/docs/getting-started
- Terms: https://developers.familysearch.org/main/docs/compatibility-review-process

## Notes

Reached only through the user's own FamilySearch sign in, over OAuth, with an app key the user registers. Lineage never holds FamilySearch passwords and never uses its own FamilySearch credentials. Every request needs an access token. Production keys need acceptance into the Compatible Solution Program and signed agreements, and only a registered business or non-profit is eligible. The health probe reads the developer docs.

## Evidence

- https://developers.familysearch.org/main/docs/getting-started
- https://developers.familysearch.org/main/docs/compatibility-review-process

## Status

Live at the last check, 2026-11-01 22:02 UTC. HTTP 200 in 50 ms. One check a day.

The Lineage research API is not live. This file describes a catalog entry only.