Architecture & integrations

Warm on the surface. Serious underneath.

Hearth sits between your PMS and your guests: reservations flow in, conversations flow everywhere, and every action writes back to your system of record.

System of record Hearth core Guest surface
PMS connections

Mews-first. Real-time. Two-way.

Our deepest connector is Mews: reservations, guest profiles, room states, and folios stream in continuously, and Hearth's actions — check-ins, upsell charges, profile updates — write back where your team already works.

  • Continuous sync, not nightly batch. A room flipping to "inspected" can fire a door-code message seconds later.
  • Writes are opt-in and gated. Read-only by default; you enable PMS writes per property, per action, when you're ready.
  • One connector framework. Cloudbeds, Opera, StayNTouch, and Apaleo ride the same interface — adding the next PMS is fast.
Mews Cloudbeds Opera StayNTouch Apaleo
Channels

Meet guests wherever their thumbs are.

Every channel lands in the same thread, keeps the same context, and follows the same escalation rules. Guests pick the channel; Hearth keeps the conversation whole.

SMS

The default for US guests — door codes, check-in links, and quick answers on the number they already text.

WhatsApp

The channel international guests expect — rich media, read receipts, and conversations that survive roaming.

Email

Confirmations, folios, and campaigns — branded, deliverable, and threaded into the same guest record.

Webchat & OTA

A widget on your booking site plus OTA messaging — questions answered before they become abandoned carts.

Voice

Your front-desk line, answered naturally around the clock — with real actions and warm transfers to staff.

Powered by Symphia

One thread, always

A guest can start on OTA, continue by SMS, and finish on a call — Hearth keeps it one conversation with one history.

The AI engine

Hearth runs standalone. The AI runs on Symphia.

Everything operational — your PMS connection, journeys, CRM, tasks, marketing, analytics — runs natively in Hearth. For conversational AI, voice and chat are powered by our Symphia engine: the dedicated agentic-AI platform we build alongside Hearth.

Standalone by design

Hearth is self-sufficient. Check-ins, journeys, upsells, and reporting keep working even if the AI layer is unreachable.

Symphia inside

Each property gets a dedicated Symphia tenant — its own knowledge, tools, and voice — purpose-built for agentic conversations.

Graceful fallback

If the engine is down, replies degrade gracefully to templated responses and human routing. Guests never hit a dead end.

One engine, continuously improving: every advance in Symphia's voice and reasoning ships to every Hearth property automatically.

Security & data ownership

Your guests. Your data. Full stop.

Hearth is a steward of your guest relationships, not a landlord. We never sell guest data, never market to your guests for anyone else, and you can export everything, any time.

Encrypted everywhere

TLS in transit, encryption at rest, and tokenized payment capture — card numbers never touch Hearth's servers.

You own the data

Guest profiles, conversations, and consent records are yours — export them in full whenever you like, including if you leave.

Roles & audit trails

Owner and operator roles, per-property access, and a full audit log of who changed what — across staff and AI alike.

Consent, honored

Opt-ins tracked per channel, opt-outs enforced instantly across every send — journeys, campaigns, and AI replies alike.

AI with guardrails

Complaints, billing disputes, and safety issues always route to humans. The AI's confidence gates what it may send alone.

Built for uptime

Independent fallbacks per dependency — if a channel, connector, or the AI engine blips, the rest of Hearth keeps serving guests.

Kick the tires with your own PMS.

Connect a sandbox, watch reservations stream in, and see the first AI reply land — usually inside a week.