# FamilySearch Family Tree download + WebHints

**Canonical:** https://apis.io/providers/familysearch/  
**Website:** https://familysearch.org/  
**APIs profiled:** 1

FamilySearch provides a free, nonprofit genealogy platform that allows users to build, share, and explore family trees. It offers access to billions of historical records and a suite of tools for family history research. The service includes APIs that enable developers to integrate FamilySearch data and functionality into applications, supporting tasks such as searching records, retrieving person information, and managing family tree data.

## Kin Score — 10.6 / 100 (minimal)

Scored 2026-10-31 under rubric 0.25.0.

| Facet | Score |
|---|---|
| Discoverability | 53.6 |
| Contract Quality | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 16.7 |
| Access Clarity | 13.2 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 5.9 (matched via fallback).

## Agent readiness — 6.0 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | yes |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | na |
| Operation Distinctiveness | na |

## APIs (1)

- **FamilySearch API** — The FamilySearch API provides programmatic access to genealogical data, records search, and family tree management as documented on the developer portal.

## Security (1)

- **Familysearch Domain Security** — TLSv1.2 · DMARC

## Tags

Genealogy, Family History, Nonprofit, API, Data

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/familysearch/). Scores are computed from the provider's own public artifacts under a published rubric.