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.

The Guesty catalog on APIs.io includes 1 Spectral governance ruleset.

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

36.6/100 thin ▬ flat Agent 29/100 agent ready Front door AI 6/6 dominant Heartbeat 72/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

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 2026-11-06 · rubric v0.27.0

Composite quality — 36.6/100 · thin

Contract Quality 8.6 / 19

Developer Ergonomics 6.8 / 15

Access Clarity 3.2 / 15

Operational Transparency 2.6 / 10

Contract Governance 1.2 / 9

Discoverability 6.0 / 8

Regulatory Posture 1.8 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 29/100 · agent ready

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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

8 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 21.1 — up to +15.8 composite points
Contract Quality scores 46.0 — up to +13.5 composite points
Developer Ergonomics scores 45.2 — up to +11.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/guesty/apis.yml: open an issue on github.com/api-evangelist/guesty to ask a question or point us at an artifact you publish. 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	-	1

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.

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OpenAPI

measured — observed by APIs.io (published)

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 6

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

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

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; 138 tools listed.

MCP SERVER

Guesty API pricing

Not yet checked against Guesty's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against Guesty's documentation. All 5 limits →

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

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Guesty

SLA

FinOps 1

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

Guesty Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Guesty API Rules

59 rules · 57 errors 1 warnings 1 info

SPECTRAL

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
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  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

Guesty API — frequently asked questions

Does Guesty have an API?

Yes. APIs.io lists 5 APIs from Guesty, including Guesty Calendars API, Guesty Conversations API and Guesty Guests API, and 2 more.

Is there an OpenAPI specification for the Guesty API?

Yes. APIs.io indexes 5 OpenAPI specifications for Guesty, each linked for download from this page.

How do I authenticate with the Guesty API?

Guesty uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Guesty Authentication.

How much does the Guesty API cost?

APIs.io lists 3 pricing plans for Guesty, with each plan's price, limits and inclusions under Pricing on this page.

Does Guesty have an MCP server?

Yes. APIs.io lists 1 MCP server for Guesty: Remote MCP server at mcp.guesty.com over HTTP; 138 tools listed.

Is the Guesty API ready for AI agents?

Guesty has a Kin Score of 36.6 out of 100 (thin) and an Agent Readiness score of 28.7 (agent-ready), scored by API Evangelist on 2026-11-06.

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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.

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