Smily (BookingSync) API

Name: Smily (BookingSync) API API
Brand: Smily (BookingSync) API
Availability: InStock

★ Only Publicly Available OpenAPI DocumentE CommerceOrder Managementoauth210 EndpointsREST

For Agents

Manage vacation rental properties, create and list bookings, and check rates and availability through the Smily (BookingSync) API.

Quickstart

Get started with Smily (BookingSync) API in minutes using your preferred integration method.

# Add to your MCP client config (Claude Desktop, Cursor, Windsurf)
{
  "jentic": {
    "url": "https://api.jentic.com/mcp",
    "auth": "oauth"
  }
}

# Then ask your agent:
"create a Smily booking"

# → Jentic returns the GET /events tool with parameter schema, agent executes.

Capabilities

What an agent can do with Smily (BookingSync) API API.

List and update rental properties managed in Smily

Create a new rental property record with photos, amenities, and pricing

Create a booking against a rental for a specific guest and date range

Retrieve a booking by ID to inspect status, dates, and guest information

GET STARTED

Start building with Smily (BookingSync) API API

Explore with Jentic

View OpenAPI Document

Use for: I need to list all rental properties in my Smily account, Create a booking for a guest at a specific rental, Update the description and amenities for a rental, Check availability for a rental in August 2026

Not supported: Does not handle hotel inventory, payment capture, or guest messaging — use for Smily (BookingSync) vacation rental and booking management only.

Jentic publishes the only available OpenAPI document for Smily (BookingSync) API, keeping it validated and agent-ready.

Jentic publishes the only available OpenAPI specification for Smily (BookingSync) API, keeping it validated and agent-ready. Smily, formerly BookingSync, is a vacation rental property management platform used by short-term rental managers to centralise their inventory, bookings, rates, and channel distribution. The API follows REST principles and uses OAuth 2.0 authentication. Use it to manage rental property records, create and retrieve bookings, list rates, and check availability across a portfolio of properties.

Use Cases

Patterns agents use Smily (BookingSync) API API for, with concrete tasks.

★ Channel-Manager Booking Sync

Push bookings created on a marketplace channel into Smily so the property's calendar stays current and double-bookings are avoided. POST /bookings creates the reservation against the matching rental, and GET /availability confirms the dates were free before insertion. Removes the manual reconciliation work that property managers do across booking sites.

POST /bookings with rental_id 9921, start_date 2026-08-12, end_date 2026-08-19, and guest_name 'Pereira'

Rental Inventory Onboarding

Onboard a new vacation rental into Smily by creating the rental record with location, photos, amenities, and base rate, then updating it as content evolves. POST /rentals creates the listing and PUT /rentals/{id} amends it. Useful for property management companies adding new properties without using the Smily UI.

POST /rentals with name 'Lisbon Beach Studio', bedrooms 1, base_rate 95 EUR per night

Revenue Management Dashboard

Pull rates and bookings into a revenue management dashboard so a property manager can see occupancy and ADR across the portfolio. GET /rates and GET /bookings return the data, and GET /availability confirms which dates remain open. Used by short-term rental operators that want analytics outside the Smily UI.

GET /rates and /bookings for rental_id 9921, then compute the ADR for the next 90 days

AI Agent Property Manager Assistant

An AI agent uses Jentic to discover Smily operations, creates bookings, updates rental content, and pulls availability on behalf of a property manager. The OAuth refresh token lives in the Jentic vault so it never enters the agent's prompt. Replaces a multi-day OAuth integration with a single search-load-execute cycle per action.

Search Jentic for 'create a Smily booking', load the operation, and execute it for the chosen rental and dates

Key Endpoints

10 endpoints — jentic publishes the only available openapi specification for smily (bookingsync) api, keeping it validated and agent-ready.

METHOD

PATH

DESCRIPTION

GET

/rentals

List rental properties

POST

/rentals

Create a rental property

PUT

/rentals/{id}

Update a rental property

POST

/bookings

Create a booking

GET

/bookings

List bookings

GET

/availability

Check availability

GET

/rates

List configured rates

GET

/rentals

List rental properties

POST

/rentals

Create a rental property

PUT

/rentals/{id}

Update a rental property

POST

/bookings

Create a booking

GET

/bookings

List bookings

GET

/availability

Why though Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

Smily OAuth refresh tokens are stored encrypted in the Jentic vault (MAXsystem). Agents receive short-lived scoped bearer tokens — the long-lived refresh token never enters the agent context or logs.

Intent-based discovery

Agents search Jentic with intents like 'create a Smily booking' or 'list Smily rentals' and Jentic returns the matching operation with its input schema, removing the need to read the BookingSync developer docs.

Time to first call

Direct Smily integration: 3-5 days to wire up OAuth, refresh handling, and the rental and booking flows. Through Jentic: under an hour with search, load, and execute.

Related APIs

Alternatives and complements available in the Jentic catalogue.

Alternative

Booking.com API

Booking.com is a hotel marketplace; Smily (BookingSync) manages vacation rental supply.

Choose Booking.com to consume hotel inventory; choose Smily when you operate the rental supply.

Complementary

Boast API

Trigger a Boast testimonial request when a Smily stay completes.

Pair when short-term rental operators want to automate post-stay review collection.

Complementary

Bokio API

Sync Smily booking revenue into Bokio's accounting ledger for Swedish operators.

Use this combination for Swedish rental operators that book revenue in Bokio.

FAQs

Specific to using Smily (BookingSync) API API through Jentic.

Why is there no official OpenAPI spec for Smily (BookingSync) API?

Smily (BookingSync) does not publish an OpenAPI specification — its developer site documents the API as HTML reference. Jentic generates and maintains this spec so AI agents and developers can call Smily (BookingSync) API via structured tooling. It is validated against the live API and kept up to date. Get started at https://app.jentic.com/sign-up.

What authentication does the Smily (BookingSync) API use?

Smily uses OAuth 2.0 authorization code flow at https://www.smily.com/oauth/authorize and /oauth/token. Through Jentic the refresh token is stored encrypted in the vault and the agent only ever sees a scoped, short-lived bearer.

Can I create a booking against a rental with the Smily API?

Yes. POST /bookings with the rental_id, start_date, end_date, and guest details. Call GET /availability beforehand to confirm the dates are free for that rental.

How do I onboard a new rental property through Jentic?

Search Jentic for 'create a Smily rental', load the POST /rentals operation, then execute it with the property name, location, and base rate. Update content later with PUT /rentals/{id}.

What are the rate limits for the Smily (BookingSync) API?

Formal rate limits are not declared in this OpenAPI specification. Smily applies fair-use limits on the OAuth-authenticated endpoints — back off on HTTP 429 responses and avoid tight polling on /availability.

Can I list all bookings for a property over a date range?

Yes. GET /bookings accepts query parameters for the rental and the date range. Combine with GET /rates for revenue analytics across the portfolio.