GenealogyAI
GenealogyAI autonomously traces French family trees by navigating historical civil registry archives, given a name, a town, and a birth year.
Core trick
Agent navigates archive search forms, OCRs handwritten civil-registry scans with Gemini, and recurses on extracted parent names.
Description
GenealogyAI autonomously traces French family trees by navigating historical civil registry archives, given a name, a town, and a birth year.
The problem it solves: tracing French ancestry today requires hours of manual work, and it requires searching fragmented departmental archive websites one by one, identifying the right register, opening scanned images, and reading 19th-century handwriting. No existing tool (MyHeritage, FamilySearch, Geneanet) does the full loop: autonomous navigation of raw archive systems + OCR on unindexed manuscript images + recursive extraction. Our tool does all three in a single query.
README excerpt
# Lignée — Hackathon Gemini Paris 2026 **Autonomous genealogy agent for French archives.** Enter an ancestor's name → the agent navigates departmental archives (Arkotheque), reads handwritten 19th-century records with Gemini 2.5 Pro, extracts parents, and climbs the family tree generation by generation. No tool does this today: navigate → OCR raw scans → extract → recurse. --- ## Requirements - Python 3.11+, `uv` - Node 18+ - `GEMINI_API_KEY` in `backend/.env` --- ## Run ```bash # Backend cd backend uv sync cp .env.example .env # add GEMINI_API_KEY uv run uvicorn main:app --reload # Frontend cd app npm install npm run dev # → http://localhost:5173 ``` --- ## Demo 1. Enter **Prudence Aimée Pinçon · Neuilly-en-Sancerre · 1843 · 2 generations** 2. Watch agents navigate archives and OCR manuscripts live 3. The family tree builds in real time — click any node to see the original document 4. If an ancestor was born after 1900 (restricted records), the app generates the mairie request letter automatically **POC validated:** birth record of Prudence Aimée Pinçon found at archives18.fr, father Jean Pinçon extracted, recursive agent tested on 2 generations. --- ## Stack | Layer | Tech | |-------|------| | Agent / OCR | Gemini 2.5 Pro (1M token context) | | Embeddings | gemini-embedding-2-preview (multimodal) | | Archives | Arkotheque HTTP API (~80 French departments) | | Backend | FastAPI + SSE | | Frontend | React + Vite + react-d3-tree | | Vector DB | Chr