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ResNexus API

ResNexus is a hospitality management platform for hotels, B&Bs, campgrounds, vacation rentals, glamping, and pet-boarding properties, combining a property management system, booking engine, channel manager, payments, and websites. Its Availability Exchange API lets approved partners programmatically pull businesses, units, availability, rates, and calendars—and add, modify, or cancel reservations—while certification and per-property authorization gate production access.

By Alex KlarfeldMay 30, 2026
ResNexus API

What is ResNexus?

ResNexus is a hospitality management software provider serving thousands of properties across hotels, bed & breakfasts, campgrounds, vacation rentals, glamping, RV parks, pet boarding, and self-storage. Properties use ResNexus to manage reservations from a central dashboard, take direct bookings through a guest-facing booking engine, distribute availability to OTAs through channel management, process payments, run revenue management, and operate SEO-optimized websites.

Core product areas include:

  • Property Management System (central reservation dashboard, double-booking prevention, automated syncing, filtering)
  • Booking Engine (guest-facing reservation flow with availability, property display, and retail-sidebar upselling)
  • Channel Management (Expedia, Booking.com, Airbnb, Vrbo, TripAdvisor, Google Hotel Ads, Hipcamp, Glamping Hub)
  • Revenue Management (dynamic pricing, yield management, sliding rates; integrations with PriceLabs, RoomPriceGenie, STR)
  • Payment Processing (Authorize.net, PayPal, USAePay; PCI and GDPR compliant)
  • Website Services, text messaging, and access automation (RemoteLock, ASSA ABLOY, Wi-Fi door locks, Inex gate control)

Common data entities:

  • Businesses/Properties, Policies, Booking Links
  • Units, Unit Groups, Inventory
  • Availability, Rates, Lowest Rates, Calendar (ARI)
  • Reservations, Quotes, Reservation Details
  • Guests, Payments, Channel Mappings

The ResNexus Integration Challenge

Properties run their entire front desk on ResNexus daily, but turning its portal- and partner-gated workflows into API-driven automation is non-trivial:

  • Partner certification gate: API access via the Availability Exchange requires requesting access, signing an API agreement, and passing certification (five successful calls per endpoint in sandbox) before production
  • Per-property authorization: Each business must add you as a reservation provider, so coverage is granted property-by-property rather than account-wide
  • Role-scoped endpoints: OTA-exclusive (Add/Modify/Cancel Reservation) and Revenue Manager-exclusive (Get Reservation Details, Set Rates) calls are gated by your partner role
  • ARI synchronization: Availability, rates, and calendar data span units and unit groups that must stay consistent across OTAs to prevent double bookings
  • Property-type variability: Hotels, campgrounds, glamping, and storage configure units, rates, and policies differently, so a single rigid mapping breaks across verticals
  • Key security obligations: API keys may not be shared and the partner is solely responsible for misuse, raising the bar on credential handling and session management

How Supergood Creates ResNexus APIs

Supergood reverse-engineers authenticated ResNexus sessions and the Availability Exchange API surface to deliver a resilient, normalized API layer for your properties—whether you connect as an OTA, a channel manager, or a revenue-management partner.

  • Handles API-key authentication and managed session continuity with secure credential storage
  • Normalizes responses across Businesses, Units, Availability, Rates, and Reservations so you integrate once and rely on consistent objects
  • Aligns with per-property authorization and role-scoped endpoints so each connection respects ResNexus entitlements
  • Adapts across property types—hotels, campgrounds, glamping, and storage—mapping units and rate plans to a unified schema

Use ResNexus with AI agents: ResNexus MCP Server →

Getting Started

  • Schedule Integration Assessment

Book a 30-minute session to confirm your partner role, property coverage, and authentication model.

  • Supergood Generates and Validates Your API

We deliver a production-ready ResNexus adapter tailored to your properties and Availability Exchange entitlements.

  • Deploy with Monitoring

Go live with continuous monitoring and automatic adjustments as ResNexus evolves.

resnexus

API Endpoints

Authentication

POST/authenticate

Authenticate to ResNexus using your Availability Exchange API key and obtain a session for downstream calls.

Properties

GET/businesses

Retrieve connected businesses/properties along with their policies and booking links.

Inventory

GET/units

List units and unit groups that make up a property's bookable inventory.

Availability & Rates

GET/availability

Pull availability, rates, lowest rates, and calendar data (ARI) across units and date ranges.

Reservations

POST/create_reservation

Add a reservation against a quote, including guest, unit, dates, and payment details (OTA-scoped).

Reservations

GET/reservations

Retrieve reservation details, then modify or cancel bookings subject to your partner role and entitlements.

Use Cases

Sync availability, rates, and inventory to OTAs

- Pull unit, unit-group, and availability data across all authorized properties into one feed - Stream rate and lowest-rate updates so OTA listings stay consistent and double bookings are prevented - Reconcile calendar data against channel manager state in near real time

Automate reservation creation and lifecycle

- Get a quote and add reservations programmatically without portal clicks - Modify or cancel bookings as guest itineraries change - Push payment and guest details into ResNexus on booking confirmation

Power revenue management and pricing tools

- Pull reservation details and rate plans for yield and dynamic-pricing engines - Set rates back into ResNexus from PriceLabs- or RoomPriceGenie-style logic - Surface occupancy and pace data to BI and reporting dashboards

Centralize multi-property and multi-vertical data

- Aggregate businesses, policies, and booking links across hotels, campgrounds, glamping, and storage - Normalize units and rate structures that differ by property type into one schema - Feed a unified guest and reservation 360 to CRM and analytics systems

Technical Specifications

Authentication

Availability Exchange API key handled in a managed, secure session

Connectivity

Authenticated ResNexus sessions plus the Availability Exchange API surface where granted per property

Response format

Normalized JSON across Businesses, Units, Availability, Rates, and Reservation objects

Rate limits

Adaptive throttling tuned to ResNexus partner limits to avoid server-side throttling

Session management

Automatic session refresh and secure API-key rotation

Data freshness

Near real-time availability, rate, and reservation pulls with optional scheduled batch syncs

Security

Encrypted credential vault, scoped access, SOC 2-aligned controls, and audit logging; API keys never shared

Webhooks

Event-style callbacks for new, modified, and cancelled reservations and rate changes

Latency

Sub-second reads on cached availability and rates; multi-second writes when posting reservations

Throughput

Horizontally scaled workers sized to multi-property OTA and channel-manager volume

Reliability

Retry, backoff, and idempotency keys for reservation creation, modification, and cancellation

Adaptation

Continuous monitoring of ResNexus and Availability Exchange API changes and per-property configuration drift

Frequently asked questions

Production access to the Availability Exchange API requires requesting access, signing the API agreement, and passing certification (five successful calls per endpoint in sandbox). Supergood works within that framework and tailors the adapter to your approved partner role.

ResNexus authorizes partners per property—each business must add you as a reservation provider. Supergood respects that model and aggregates the properties you are authorized for into a single normalized API.

Yes, subject to your partner role. OTA-scoped partners can get a quote and add, modify, or cancel reservations; Revenue Manager-scoped partners can pull reservation details and set rates. Supergood maps your entitlements to the right endpoints.

ResNexus serves hotels, B&Bs, campgrounds, vacation rentals, glamping, RV parks, pet boarding, and self-storage. Supergood normalizes units, rates, and policies across these verticals into one consistent schema.

The API exposes availability, rates, lowest rates, and calendar (ARI) data at the unit and unit-group level. Supergood pulls these in near real time and can push rate updates back, helping keep OTA listings consistent and preventing double bookings.

Ready to get a real API?