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Mews API

Mews is a cloud-native hospitality operating system that unifies property management, point-of-sale, revenue management, and embedded payments so hotels and accommodation providers can run reservations, the guest journey, operations, and back-office finance from a single platform. This page is an independent design exercise that asks what a well-designed Mews API could look like: the resources it would expose, the authentication it would need, and the workflows it could unlock. Below: a hypothetical endpoint design, the technical requirements a production implementation would face, the use cases programmatic access could serve, and where to start if your team needs this kind of access today.

By Alex KlarfeldJuly 8, 2026
Mews API

This page is an independent analysis by Supergood of what a well-designed Mews API could look like. It draws on publicly available information, vendor materials, and general integration experience in this category. Nothing on this page describes an existing Mews product, and Supergood is not affiliated with or endorsed by the vendor. If the vendor offers an official API, we highly recommend it.

What is Mews?

Mews is a cloud-native hospitality operating system that unifies property management, point-of-sale, revenue management, and embedded payments so hotels and accommodation providers can run reservations, the guest journey, operations, and back-office finance from a single platform. Properties use Mews to manage bookings, check-in and check-out, housekeeping, billing, and reporting, and extend their stack through the Mews Marketplace of 1,000+ hospitality integrations built on the Mews Open API.

Core product areas include:

  • Property Management System (reservations, guest intelligence, housekeeping, groups & events, upsells, accounting & billing, booking engine, guest check-in)
  • Point-of-Sale (ePOS for food & beverage operations with embedded payments)
  • Revenue Management System (dynamic pricing, demand forecasting and controls)
  • Payments (tokenization, automated reconciliation, multicurrency support, payment terminals)
  • Open API, Marketplace, and Data & Reporting

An API for a platform like this would naturally organize around its core data entities:

  • Reservations, Groups, Availability Blocks, Vouchers
  • Customers (guest profiles), Companies, Loyalty memberships
  • Spaces (rooms/resources), Space Categories, Resource Blocks, Housekeeping tasks
  • Rates, Rate Groups, Restrictions, Products, Order Items
  • Bills, Accounting Items, Payments, Outlet Items (POS)

The Mews Integration Challenge

Mews exposes a public Connector API, but turning it into reliable, property-spanning automation still presents real obstacles:

  • Dual-token authentication: every request needs both a ClientToken (your application) and a property-specific AccessToken, so multi-property automation means managing and rotating many credential pairs
  • Partner certification gates: production ClientTokens and the Marketplace require going through Mews partner onboarding and certification before broad API access is granted
  • High-volume polling and timestamps: change-tracking by UTC timestamps across reservations, items, and payments requires careful pagination and cursoring to stay in sync without missing updates
  • Property-specific configuration: rate groups, space categories, products, and tax/accounting setup vary per enterprise and per property, so generic integrations break across tenants
  • Payments and financial precision: charges, refunds, and reconciliation through embedded Mews Payments require idempotency and exact accounting-item handling
  • Coverage gaps: not every Operations workflow is exposed identically, and webhook events versus polling differ by entity and API version

What a Mews API Could Look Like

If Mews exposed a modern, general-purpose API, the integration challenges above suggest what it would need to get right. This is a design sketch, not documentation of anything that exists today:

  • First-class authentication: session handling with support for MFA and enterprise sign-on where the platform uses them
  • Consistent resources: normalized JSON schemas and pagination across the platform's core objects
  • Reliable writes: idempotency keys and validation that mirrors the platform's own workflow rules
  • Entitlement awareness: endpoints scoped to what each customer's licensing actually permits

The endpoint sketches, technical requirements, and use cases below flesh out this hypothetical design.

How AI agents could connect to software like Mews: MCP servers for software without a public API →

Need This Kind of Access Today?

If your team needs this kind of access today, Supergood builds integrations on request, one customer at a time. We act at the direction of our customers, within the access they already hold. Customers bring their own accounts, licenses, and entitlements. If the vendor offers an official API, we highly recommend it.

  1. Schedule an Integration Assessment
    A 30-minute session to review your product mix, licensing, and authentication model.
  2. Scope the Integration
    We design the access pattern around your workflows and entitlements.
  3. Deploy with Monitoring
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Mews on the API Report Card

Potential API Endpoints

Authentication

POST/authenticate

Would authenticate to a Mews property using ClientToken and property-specific AccessToken and establish a session for downstream calls.

Reservations

GET/reservations

Would list reservations with filters for property, state, stay dates, and updated-since timestamp for change tracking.

Reservations

POST/create_reservation

Would create a new reservation against a space category and rate plan, including guest, dates, and product selections.

Customers

GET/customers

Would retrieve guest profiles and company records with contact, loyalty, and classification data.

Billing

GET/bills

Would pull bills, accounting items, and order items across reservations and POS outlets for reconciliation.

Payments

POST/create_payment

Would post a charge, refund, or payment against a bill through embedded Mews Payments with idempotency handling.

Use Cases

Sync reservations and guest data into your warehouse

- Pull reservations, groups, and availability blocks with updated-since cursoring into a single warehouse - Reconcile customer and company profiles across properties for a unified guest 360 - Stream reservation state changes to downstream CRM, marketing, and BI tools

Automate the check-in and guest journey

- Create and update reservations, assign spaces, and trigger check-in without portal clicks - Push pre-arrival upsells and product orders back into Mews - Surface housekeeping task status and room readiness to operations dashboards

Reconcile billing and payments

- Sync bills, accounting items, and order items from PMS and POS into general ledger and AR systems - Post charges, refunds, and payments through embedded Mews Payments with idempotency - Match multicurrency settlements and reconciliation reports against finance systems

Drive revenue and rate automation

- Pull rates, rate groups, restrictions, and availability for dynamic pricing tools - Push rate and restriction updates back into Mews from a revenue management engine - Feed occupancy and demand signals to forecasting and channel-management systems

Technical Requirements

Authentication

Would require clientToken plus property-specific AccessToken handled in a managed, rotating session

Connectivity

Would build on mews Connector API plus authenticated Operations flows surfaced through a single normalized layer

Response format

Normalized JSON across reservations, customers, spaces, rates, accounting, and payments objects

Rate limits

Adaptive throttling tuned per property to respect Mews-side request limits and avoid contention

Session management

Would need automatic token management, AccessToken rotation, and credential vaulting per property

Data freshness

Near real-time pulls via updated-since timestamp tracking with optional scheduled batch syncs

Security

Encrypted credential vault, scoped tokens, SOC 2-aligned controls, and audit logging

Webhooks

Event-style callbacks for reservation, item, and payment changes where exposed, with polling fallback

Latency

Design target: sub-second reads on cached entities; multi-second writes when posting reservations, charges, and payments

Throughput

Design target: horizontally scaled workers sized to multi-property reservation and POS volume

Reliability

Retry, backoff, and idempotency keys for reservation, billing, and payment transactions

Versioning

Clear versioning and change management would matter as Mews evolves

Frequently asked questions

Yes. Order items from the ePOS and charges, refunds, and reconciliation through embedded Mews Payments are exposed alongside reservations and accounting items on the same normalized surface.

Availability of official interfaces varies by product, plan, and licensing. Many platforms in this category gate access behind partner programs or paid modules, and there is often no broadly available, self-serve public API. Check the vendor's developer resources for current offerings.

The hard parts would be authentication (MFA, session management, enterprise controls), consistent schemas across the platform's products, and write semantics that reconcile the way the platform's own workflows do.

No. This page is an independent analysis by Supergood and is not affiliated with, sponsored by, or endorsed by the vendor. All product names and trademarks belong to their respective owners and are used for identification only. Nothing here documents an actual Mews product or service.

Supergood acts at the direction of its customers, within the access those customers already have. We respect each customer's agreements with their software vendors, and how those agreements apply to a customer's use is a determination the customer makes. If the vendor offers an official API, we highly recommend it.

Supergood builds managed API access to enterprise software for customers on request, scoped to each customer's own licensing and entitlements. If your team needs programmatic access to a platform like this, schedule an integration assessment to discuss options.

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