Guesty website screenshot

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 publishes 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 Rentals.

Guesty’s developer surface includes authentication, developer portal, signup flow, support, engineering blog, API reference, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
35.8/100 thin ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0
AccessFreemiumSelf serve⚡ Free to try
5 APIs
BookingHospitalityProperty ManagementReservationsShort-Term RentalsVacation Rentals

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Composite quality — 35.8/100 · thin
Contract Quality 11.5 / 23
Developer Ergonomics 6.6 / 18
Access Clarity 5.2 / 18
Operational Transparency 2.2 / 12
Contract Governance 0.0 / 11
Discoverability 7.3 / 9
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 20/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 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
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.
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 →

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

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

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 1

Status, limits, changes, and where to get help

Support
Support

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap
CapabilityMap

Source (apis.yml)

apis.yml Raw ↑ 
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
tags:
- 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:
  - 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: 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

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