> ## Documentation Index > Fetch the complete documentation index at: https://docs.d-edge.com/llms.txt > Use this file to discover all available pages before exploring further. > ## Agent Instructions > This site documents the D-EDGE APIs for technology partners (web agencies, OTAs, PMS and RMS vendors, booking and CRM tools). It is written for developers integrating with hotels that use the D-EDGE platform. > Seven APIs, grouped by domain. Connectivity: Channel Manager API (distribute a hotel's inventory to your channel and send bookings back). Pricing & Availability: Best Price API (best offers to highlight), Quotation API (all bookable offers for a stay), Daily Rates API (daily availability between two dates). Booking: Booking Engine API (a hotel's full direct booking funnel), Gift Shop API (gift vouchers from catalogue to payment). Guest Management: CRM API (guest profiles). > Pick the API by the need: to display prices, use the Best Price API or the Daily Rates API; to quote a specific stay, use the Quotation API; to book, use the Booking Engine API; to sell gift vouchers, use the Gift Shop API; to manage guest profiles, use the CRM API; to receive hotel inventory and send bookings back as a distribution channel, use the Channel Manager API. > Base URLs, hotel identifiers, and credentials are delivered by the D-EDGE partnership team during onboarding. Do not invent base URLs, endpoints, parameters, or example credentials that do not appear on these pages. > Authentication differs per API: OAuth 1.0 for Best Price, Quotation, Daily Rates, and Booking Engine; an X-API-KEY header for Gift Shop; OAuth 2.0 client credentials for CRM; partner-defined credentials carried in the XML message for the Channel Manager API. Read each API's Authentication page before writing code. > A mock environment returns realistic but fictitious data without credentials. The Postman and Insomnia collections on the API collections page target it by default. Use it for exploration and tests, never for production traffic. > Use the official names exactly: D-EDGE, D-EDGE platform, Channel Manager API, partnership team. Do not use Back Office or Extranet. > Each API has a Changelog page. Check it for the current behaviour before relying on an older answer. For questions these pages do not answer, direct the reader to the Contact us page. # Use cases > A sample of what you can build with the D-EDGE APIs Below are the patterns partners build most often. Each one comes with response handling, production tips, and a full implementation in six languages: cURL, Node.js, Python, PHP, C#, and Java. Take them as starting points and adapt them to your product: the APIs let you compose plenty more than what we surface here. **Pricing & Availability** > **[Dynamic price calendar](/best-price-api/resources/use-cases/dynamic-price-calendar.md)** > > Best Price API > Show the best rate for each arrival date in a range. > **[Best rate per room type](/best-price-api/resources/use-cases/best-rate-per-room-type.md)** > > Best Price API > Show the cheapest offer for each room on a listing page. > **[Hotels destination explorer](/best-price-api/resources/use-cases/hotels-destination-explorer.md)** > > Best Price API > Show a "from" price for every hotel in a chain or destination. > **[Member rate showcase](/best-price-api/resources/use-cases/member-rate-showcase.md)** > > Best Price API > Show the value of being a loyalty member with a side-by-side rate comparison. > **[Multi-currency price display](/best-price-api/resources/use-cases/multi-currency-price-display.md)** > > Best Price API > Show prices in the guest's currency with display-time conversion. > **[Bookable offers showcase](/quotation-api/resources/use-cases/bookable-offers-showcase.md)** > > Quotation API > Show every available room and rate for a chosen stay. > **[Promo code landing](/quotation-api/resources/use-cases/promo-code-landing.md)** > > Quotation API > Quote the offer behind a promo code on a tailored landing page. > **[Nightly rate refresh](/daily-rates-api/resources/use-cases/nightly-rate-refresh.md)** > > Daily Rates API > Refresh an internal rates database from D-EDGE on a nightly schedule. > **[Revenue manager dashboard](/daily-rates-api/resources/use-cases/revenue-manager-dashboard.md)** > > Daily Rates API > Surface availability, prices, restrictions, and key metrics in one back-office view. **Booking** > **[Conversational booking agent](/booking-engine-api/resources/use-cases/conversational-booking-agent.md)** > > Booking Engine API > Drive the booking funnel from a conversational AI agent. > **[Alternative availability](/booking-engine-api/resources/use-cases/alternative-availability.md)** > > Booking Engine API > Offer an alternative when the requested stay is unavailable. > **[Promotional campaigns](/booking-engine-api/resources/use-cases/promotional-campaigns.md)** > > Booking Engine API > Show a live offer and open landing pages on a promo code. > **[Last-step discount](/booking-engine-api/resources/use-cases/last-step-discount.md)** > > Booking Engine API > Apply an exceptional discount to the basket before payment. > **[Abandoned booking recovery](/booking-engine-api/resources/use-cases/abandoned-booking-recovery.md)** > > Booking Engine API > Bring a guest back to a pre-filled basket after they drop off. > **[Branded confirmation page](/booking-engine-api/resources/use-cases/branded-confirmation-page.md)** > > Booking Engine API > Render the booking confirmation on the hotel's own domain. > **[Branded storefront](/gift-shop-api/resources/use-cases/branded-storefront.md)** > > Gift Shop API > Build the hotel's gift shop into its own website. > **[Occasion landing page](/gift-shop-api/resources/use-cases/occasion-landing-page.md)** > > Gift Shop API > Open a seasonal gifting page on a filtered catalogue. > **[Voucher for a friend](/gift-shop-api/resources/use-cases/voucher-for-a-friend.md)** > > Gift Shop API > Send a personalised voucher to a loved one, price hidden. > **[Gift card to direct booking](/gift-shop-api/resources/use-cases/gift-card-to-direct-booking.md)** > > Gift Shop API > Sell a gift card online and let it pay for a direct booking. **Guest Management** > **[Duplicate profile cleanup](/crm-api/resources/use-cases/duplicate-profile-cleanup.md)** > > CRM API > Score duplicate profiles and merge them without losing an id. > **[Post-stay profile enrichment](/crm-api/resources/use-cases/post-stay-profile-enrichment.md)** > > CRM API > Walk recent stays and write back what you learn. 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