Guesty

Guesty is a property management platform for short-term rental businesses. The Guesty Open API provides programmatic access to manage properties, reservations, guests, and operations across multiple listing channels.

Guesty is listed with 5 APIs on the APIs.io network, including Calendars API, Conversations API, Guests API, and 2 more. Tagged areas include Booking, Hospitality, Property Management, Reservations, and Short-Term Rental.

Guesty’s developer surface includes authentication, developer portal, signup flow, support, engineering blog, API reference, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

32.3/100 thin ▬ flat Agent 27/100 agent aware Front door AI 6/6 dominant saas Full breakdown ↓
scored 2026-10-17 · rubric v0.24.0

AccessFreemiumSelf serve⚡ Free to try

5 APIs 1 MCP Servers

Booking Hospitality Property Management Reservations Short-Term Rental Vacation Rentals

What this lets a business do 3

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Travel Product & Inventory Management

BC-4000

CalendarsListings

POST /listings GET /calendars/listings/{listingId}

Reservation & Booking Management

BC-4020

Reservations

POST /reservations

Guest & Traveller Management

BC-4040

Guests

GET /guests

Kin Score

Kin Score How this is scored →
scored 2026-10-17 · rubric v0.24.0

Composite quality — 32.3/100 · thin

Contract Quality 8.6 / 19

Developer Ergonomics 5.5 / 15

Access Clarity 3.2 / 15

Operational Transparency 1.8 / 10

Contract Governance 0.0 / 9

Discoverability 6.0 / 8

Regulatory Posture 1.8 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 27/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/guesty: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Hospitality Technology (hotels, PMS, channel managers)	gravity	51.8	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

APIs 5

Individual APIs this provider publishes, each with its own machine-readable definition.

Guesty Calendars API

Listing availability and pricing

Guesty Conversations API

Guest communication threads

Guesty Guests API

Guest profiles

Guesty Listings API

Property listings

Guesty Reservations API

Bookings and reservations

Open Collections 7

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Guesty Open Calendars API

OPEN COLLECTION

Guesty Open Calendars Conversations API

OPEN COLLECTION

Guesty Open Calendars Guests API

OPEN COLLECTION

Guesty Open Calendars Listings API

OPEN COLLECTION

Guesty Open Calendars Reservations API

OPEN COLLECTION

Guesty Open API

OPEN COLLECTION

Scroll for all 7

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Guesty MCP Server

Remote MCP server at mcp.guesty.com over HTTP.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Guesty Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Guesty Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Guesty Finops

FINOPS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Guesty Authentication

http · 1 scheme

SECURITY

Guesty Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Guesty Agentic Access

10 operations · 2 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

Signup

Signup

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: guesty
name: Guesty
description: Guesty is a property management platform for short-term rental businesses. The Guesty Open API provides programmatic
  access to manage properties, reservations, guests, and operations across multiple listing channels.
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/guesty.png
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-10-03
tags:
- Booking
- Hospitality
- Property Management
- Reservations
- Short-Term Rental
- Vacation Rentals
tags_raw:
- Booking
- Hospitality
- Property Management
- Reservations
- Short-Term Rentals
- Vacation Rentals
url: https://raw.githubusercontent.com/api-evangelist/guesty/refs/heads/main/apis.yml
created: '2025-02-12'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: guesty:guesty-calendars-api
  name: Guesty Calendars API
  description: Listing availability and pricing
  humanURL: https://open-api-docs.guesty.com/
  baseURL: https://open-api.guesty.com
  tags:
  - Calendar
  tags_raw:
  - Calendars
  properties:
  - type: OpenAPI
    url: openapi/guesty-calendars-api-openapi.yml
  - type: Documentation
    url: https://open-api-docs.guesty.com/
  - type: GettingStarted
    url: https://open-api-docs.guesty.com/docs/getting-started
  - type: Authentication
    url: https://open-api-docs.guesty.com/docs/authentication-and-authorization
  - type: APIReference
    url: https://open-api-docs.guesty.com/reference
  - type: ChangeLog
    url: https://open-api-docs.guesty.com/changelog
- aid: guesty:guesty-conversations-api
  name: Guesty Conversations API
  description: Guest communication threads
  humanURL: https://open-api-docs.guesty.com/
  baseURL: https://open-api.guesty.com
  tags:
  - Conversations
  properties:
  - type: OpenAPI
    url: openapi/guesty-conversations-api-openapi.yml
  - type: Documentation
    url: https://open-api-docs.guesty.com/
  - type: GettingStarted
    url: https://open-api-docs.guesty.com/docs/getting-started
  - type: Authentication
    url: https://open-api-docs.guesty.com/docs/authentication-and-authorization
  - type: APIReference
    url: https://open-api-docs.guesty.com/reference
  - type: ChangeLog
    url: https://open-api-docs.guesty.com/changelog
- aid: guesty:guesty-guests-api
  name: Guesty Guests API
  description: Guest profiles
  humanURL: https://open-api-docs.guesty.com/
  baseURL: https://open-api.guesty.com
  tags:
  - Guests
  properties:
  - type: OpenAPI
    url: openapi/guesty-guests-api-openapi.yml
  - type: Documentation
    url: https://open-api-docs.guesty.com/
  - type: GettingStarted
    url: https://open-api-docs.guesty.com/docs/getting-started
  - type: Authentication
    url: https://open-api-docs.guesty.com/docs/authentication-and-authorization
  - type: APIReference
    url: https://open-api-docs.guesty.com/reference
  - type: ChangeLog
    url: https://open-api-docs.guesty.com/changelog
- aid: guesty:guesty-listings-api
  name: Guesty Listings API
  description: Property listings
  humanURL: https://open-api-docs.guesty.com/
  baseURL: https://open-api.guesty.com
  tags:
  - Listings
  properties:
  - type: OpenAPI
    url: openapi/guesty-listings-api-openapi.yml
  - type: Documentation
    url: https://open-api-docs.guesty.com/
  - type: GettingStarted
    url: https://open-api-docs.guesty.com/docs/getting-started
  - type: Authentication
    url: https://open-api-docs.guesty.com/docs/authentication-and-authorization
  - type: APIReference
    url: https://open-api-docs.guesty.com/reference
  - type: ChangeLog
    url: https://open-api-docs.guesty.com/changelog
- aid: guesty:guesty-reservations-api
  name: Guesty Reservations API
  description: Bookings and reservations
  humanURL: https://open-api-docs.guesty.com/
  baseURL: https://open-api.guesty.com
  tags:
  - Reservations
  properties:
  - type: OpenAPI
    url: openapi/guesty-reservations-api-openapi.yml
  - type: Documentation
    url: https://open-api-docs.guesty.com/
  - type: GettingStarted
    url: https://open-api-docs.guesty.com/docs/getting-started
  - type: Authentication
    url: https://open-api-docs.guesty.com/docs/authentication-and-authorization
  - type: APIReference
    url: https://open-api-docs.guesty.com/reference
  - type: ChangeLog
    url: https://open-api-docs.guesty.com/changelog
common:
- type: Plans
  url: plans/guesty-plans-pricing.yml
- type: RateLimits
  url: rate-limits/guesty-rate-limits.yml
- type: FinOps
  url: finops/guesty-finops.yml
- type: CapabilityMap
  url: capabilities/guesty-capability-edges.yml
  name: Guesty Business Capability Map
- type: AgenticAccess
  url: agentic-access/guesty-agentic-access.yml
- type: DomainSecurity
  url: security/guesty-domain-security.yml
- type: Authentication
  url: authentication/guesty-authentication.yml
- type: GitHubOrganization
  url: https://github.com/guestyorg
- type: LinkedIn
  url: https://www.linkedin.com/company/guesty
- type: Portal
  url: https://open-api-docs.guesty.com/
- type: Website
  url: https://www.guesty.com/
- type: Signup
  url: https://app.guesty.com/register
- type: Support
  url: https://help.guesty.com/
- type: Blog
  url: https://www.guesty.com/blog/
- type: APIReference
  url: https://open-api-docs.guesty.com/reference
- type: LlmsText
  url: https://open-api-docs.guesty.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/guesty"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/guesty/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/guesty/evidence"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.