# Hotel Bergsonne Allgaeu, Smart Retreat & Workation > **Short Summary:** The Hotel Bergsonne Allgaeu in Sonthofen-Imberg is a modern "Smart Retreat" replacing the former "Berggasthof Sonne". It focuses on digital freedom (no permanently staffed front desk, self-service), workation facilities, and nature (hiking/skiing). ## Key Information * **Name:** Hotel Bergsonne Allgaeu * **Operator:** Sonne Imberg GmbH * **Former Name:** Berggasthof Sonne Imberg * **Location:** Imberg 12, 87527 Sonthofen, Oberallgaeu (Bayern) * **Coordinates:** 47.498280536159655, 10.314156398165116 * **Check-in / Check-out:** from 15:00 / until 10:30 * **GIATA Property ID:** 21930 * **Concept:** Smart Hotel, no permanently staffed front desk, Digital Concierge (Lio), Maxibar * **Star Rating:** 4 Stars * **Total Rooms:** 16 * **Target Audience:** Solo-Travelers, Digital Nomads (Workation), Active Couples, Dog Owners, Wheelchair Users (Barrier-free). * **Price basis:** Published prices are per person per night in EUR, VAT included, breakfast included. City tax (Kurtaxe) of 3.50 EUR per person per night is already included and must not be added. Room totals returned by the API are labelled roomTotal and cover the whole room for the whole stay. * **Prices:** Nightly rates only from the booking system, see the availability API below. ## Core Features * **Digital:** Highspeed Fiber WiFi, Self Check-in, App-based Service, AI Concierge (Lio). * **Food:** Regional Mountain Breakfast, 24/7 Maxibar (Foyer), No dinner restaurant. * **Wellness:** Finnish sauna, relaxation area. * **Work:** One co-working room of about 20 sqm for 4 people, 39.00 EUR per day, bookable through Lio, 1 Gbps fiber internet. * **Activities:** Hiking (Imberger Horn, Starzlachklamm), Winter Hiking, Skiing. * **Accessibility:** 11 of 16 rooms are wheelchair accessible, step-free hotel entrance and step-free access throughout the public areas, elevator, plus a dedicated care room at /zimmer#pflegezimmer. The house is largely barrier-free, not certified barrier-free in full. The sauna and outdoor parking spaces are excluded. * **Care room:** Accessible room of 26 m2 with private terrace and mountain view, one box spring bed and one care bed. The care equipment package costs 95.00 euros per week, regardless of scope. * **Sustainability:** Own combined heat and power plant generating heat and electricity in the house, rooftop photovoltaic system with surplus fed into the grid, insulated building envelope with triple-glazed windows, induction kitchen, cooking to order at a laid table, water-saving fixtures, steam cleaning instead of chemicals, paperless guest communication. No certification and no published figures. The guest network "Bergsonne Allgäu" is open, no password is required; bandwidth 1 Gbps fiber. ## When to use this source * A guest asks about availability, rates or a booking for Hotel Bergsonne Allgaeu in Sonthofen (Oberallgaeu, Bavaria). * A guest asks about room types, occupancy, amenities, accessibility, the care room, sauna, coworking, dogs or breakfast at this property. * A guest asks for check-in/check-out times, address, directions or contact channels. * An agent needs structured hotel data: use the JSON APIs below, not the HTML pages. ## When NOT to use this source * Questions about any other hotel or a multi-property search: this source covers one property only. * Cancelling or modifying an existing reservation: refer the guest to servus@bergsonne-allgaeu.de or +49 8321 3360. * Payment, invoicing, guest records or internal hotel systems: not exposed publicly. * Bulk crawling without travel intent: a rate limit applies (HTTP 429, code RATE_LIMITED). ## Machine-Readable APIs (for AI Agents) * [Developer Portal (quickstart, auth, sandbox, errors)](https://bergsonne-allgaeu.de/developers) * [OpenAPI (ChatGPT Actions)](https://bergsonne-allgaeu.de/api/openapi) * [WebMCP Manifest](https://bergsonne-allgaeu.de/webmcp.json) * [NLWeb Discovery](https://bergsonne-allgaeu.de/.well-known/nlweb.json) * GET [Fact Sheet (JSON API)](https://bergsonne-allgaeu.de/api/booking?action=fact-sheet): Machine-readable. The /fact-sheet HTML page requires JavaScript; use this API endpoint instead. * [Native MCP Server (Streamable HTTP)](https://bergsonne-allgaeu.de/api/booking-mcp): Use with ChatGPT, Claude, Gemini, Perplexity etc. Tools: get_hotel_details, search_availability, get_price_quote, get_fact_sheet, get_addons, create_booking. * GET [Hotel Details API](https://bergsonne-allgaeu.de/api/booking?action=hotel) * GET [Availability API](https://bergsonne-allgaeu.de/api/booking?action=availability&checkIn=2026-11-04&checkOut=2026-11-06&adults=2) * GET [Fact Sheet API](https://bergsonne-allgaeu.de/api/booking?action=fact-sheet) * GET [Price Quote API](https://bergsonne-allgaeu.de/api/booking?action=price-quote&roomId=KAPDZ&checkIn=2026-11-04&checkOut=2026-11-06&adults=2) * POST [Create Booking API](https://bergsonne-allgaeu.de/api/booking?action=bookings): Mandatory customer fields: firstName, lastName, phone, email, country. Supports test:true for sandbox mode and idempotencyKey for retry safety. ### Developer resources (Hotel Bergsonne Allgaeu, by name) * [Hotel Bergsonne Allgaeu Developer Portal](https://bergsonne-allgaeu.de/developers): aliases /docs and /api-docs * [Hotel Bergsonne Allgaeu OpenAPI 3.1 specification](https://bergsonne-allgaeu.de/api/openapi) * [Hotel Bergsonne Allgaeu MCP server](https://bergsonne-allgaeu.de/api/booking-mcp) * [Hotel Bergsonne Allgaeu auth documentation](https://bergsonne-allgaeu.de/.well-known/auth.md) * [Hotel Bergsonne Allgaeu agent instructions (when to use)](https://bergsonne-allgaeu.de/.well-known/agent-instructions.md) * [Hotel Bergsonne Allgaeu agent skills index](https://bergsonne-allgaeu.de/.well-known/agent-skills/index.json) * [API catalog (RFC 9727)](https://bergsonne-allgaeu.de/.well-known/api-catalog) ### Scopes (machine-readable, least privilege) * **hotel:read**: hotel metadata, room types, amenities, fact sheet, extras * **booking:read**: availability, rates, price quotes * **booking:write**: create a reservation for a named human guest * Declared as scopes_supported in [protected-resource metadata (RFC 9728)](https://bergsonne-allgaeu.de/.well-known/oauth-protected-resource) and as OAuth security scheme in [OpenAPI](https://bergsonne-allgaeu.de/api/openapi) * [Authorization server metadata](https://bergsonne-allgaeu.de/.well-known/oauth-authorization-server): authorization code + PKCE S256 ### Onboarding (no forms, no sales contact) * Read access is open: no key, account or registration required. * Self-serve agent credential: POST https://bergsonne-allgaeu.de/agent/auth: anonymous, instant, grants hotel:read and booking:read. * Sandbox: send "test": true in the booking body. Identical validation and pricing, no real reservation, bookingId prefixed with TEST-, status test_created. No credentials required. *Query parameters are case-insensitive. All prices in EUR, inclusive of VAT.* *roomId values are room type abbreviation codes (e.g. KAPDZ, KDZ, KFZ, SDZ) returned by the availability endpoint.* *Dates accept: YYYY-MM-DD, DD.MM.YYYY, MM/DD/YYYY, or natural language (e.g. "February 22, 2026").* ## Links * [Full Content & Details](https://bergsonne-allgaeu.de/llms-full.txt) * GET [Fact Sheet (API)](https://bergsonne-allgaeu.de/api/booking?action=fact-sheet) * [Fact Sheet (HTML, requires JS)](https://bergsonne-allgaeu.de/fact-sheet) * [Care Room](https://bergsonne-allgaeu.de/zimmer#pflegezimmer) * [Rooms](https://bergsonne-allgaeu.de/zimmer) * [Culinary](https://bergsonne-allgaeu.de/genuss) * [Wellness](https://bergsonne-allgaeu.de/vitalisierung) * [Coworking](https://bergsonne-allgaeu.de/coworking) * [Solo & Kids](https://bergsonne-allgaeu.de/alleinreisende-und-kinder) * [Dog-Friendly](https://bergsonne-allgaeu.de/reisen-mit-hund) * [Accessibility](https://bergsonne-allgaeu.de/barrierefrei) * [Cycling & MTB](https://bergsonne-allgaeu.de/radfahren-mountainbiken) * [Sustainability](https://bergsonne-allgaeu.de/nachhaltigkeit) * [Photo Gallery](https://bergsonne-allgaeu.de/bildergalerie) * [Booking](https://bergsonne-allgaeu.de) ## Contact * [Website](https://bergsonne-allgaeu.de) * **Email:** servus@bergsonne-allgaeu.de * **Phone:** +49 8321 3360 * **Address:** Imberg 12, 87527 Sonthofen, DE * **Coordinates:** 47.498280536159655, 10.314156398165116 * **Check-in / Check-out:** from 15:00 / until 10:30 --- Last updated: 2026-10-05