The open-source guest identity graph for hospitality.
Guest data lives scattered across the PMS, POS, booking engine, loyalty program, wifi portal, and review platforms — each with its own keys and its own version of the truth. GuestGraph resolves those scattered records into one unified, explainable golden profile per guest: the guest graph.
| Repository | What it is |
|---|---|
| guestgraph | The core: identity resolution engine, guest graph, REST API |
- Source records are immutable — the golden profile is derived; original data is sacred
- Every merge is explainable and reversible — identity resolution you can audit and trust
- Tenant-scoped from day one — one instance serves many brands, properties, or customers
- API-first — everything the engine can do is reachable over the REST API
- Apache 2.0 — the core is and will remain open source
- 🚧 Core — deterministic, probabilistic-ready identity resolution (in development)
- Probabilistic matching — fuzzy/ML resolution with human review queue
- Timeline — the unified guest journey across all touchpoints
- Connectors — PMS, POS, and booking system integrations
Managed hosting, API, and MCP services are planned at guestgraph.io.
Built spec-first in the open. Early days — star the core repo to follow along.