Developer API

Let AI build your family tree.
Keep it somewhere beautiful.

The genealogy world is about to be transformed by AI agents that can read archives, parse records and reason across centuries. Dynasty House gives them a simple, open REST API to write what they find straight into your tree — where it lives privately, looks like an heirloom, and is shared with your whole family from a single link.

Included with any paid plan · Your data exports to GEDCOM in one click, always.

Everyone is about to have a tireless genealogist in their pocket. The hard part won't be finding ancestors — it will be having somewhere worthy to keep them: a single, canonical family record that's permanent, private by default, and beautiful enough to pass down. That's us. You bring the research; we are the home and the gallery.

How it works

  1. Mint a key. In Settings → Developer API, generate a personal API key (paid plans). We store only a hash of it.
  2. Point your agent at us. Give Claude, a script, or your own app the key and the base URL. It can read your whole tree in one call and write people and relationships back.
  3. Watch it appear. Everything an agent adds shows up instantly in your tree — pan-and-zoom views, fan charts, life stories, a published family page. Living relatives stay hidden automatically.

One call to read the whole family

# An agent finds a great-grandfather in a 1910 census
# and writes him straight into your tree:
curl -X POST https://dynasty.house/api/v1/trees/$TREE/people \
  -H "Authorization: Bearer $DYNASTY_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "given": "Wilhelm", "surname": "Lopin", "sex": "M",
    "birth_date": "1888", "birth_place": "Vienna, Austria",
    "notes": "Source: 1910 parish register, p.42.",
    "link": { "type": "parent", "personId": "YOU" }
  }'

Relationships are first-class: link a new person as a parent, child or spouse and we handle the union plumbing. Read the entire graph — people, partnerships and child links — with a single GET /trees/:id.

Built for the agentic era

Who it's for

Tinkerers automating their own research. Developers building genealogy tools who'd rather not reinvent a presentation layer. And anyone who wants their AI assistant to do the digging and hand the results to a home that will outlast any single app — or company, including ours.

Give your research a home worth keeping.

Free to start. The API unlocks on any paid plan, a flat $4/month.