Acuity Scheduling

Acuity Scheduling is an online appointment scheduling platform (a Squarespace product) used by service businesses, coaches, and practitioners to manage client bookings, calendars, intake forms, payments, and reminders. The Acuity REST API provides programmatic access to appointments, appointment types, clients, calendars, availability, forms, and webhooks at acuityscheduling.com/api/v1. Authentication uses HTTP Basic Auth (User ID + API Key) for single accounts or OAuth 2.0 for multi-tenant applications.

Acuity Scheduling publishes 5 API contracts indexed on the APIs.io network, including Webhooks, Appointments API, Meta API, and 2 more. Tagged areas include Appointment Scheduling, Booking, Calendar, Scheduling, and Squarespace.

The Acuity Scheduling catalog on APIs.io includes 1 Spectral governance ruleset.

Acuity Scheduling’s developer surface includes authentication, documentation, pricing, signup flow, engineering blog, and 5 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

31.4/100 thin ▬ flat Agent 25/100 agent aware Front door AI 1/6 silent Heartbeat 64/100 slowing saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract

Appointment Scheduling Booking Calendar SchedulingSquarespace

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 31.4/100 · thin

Contract Quality 9.5 / 19

Developer Ergonomics 5.4 / 15

Access Clarity 3.6 / 15

Operational Transparency 0.0 / 10

Contract Governance 1.2 / 9

Discoverability 4.8 / 8

Regulatory Posture 1.8 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 25/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 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 0 / 7

Typed Event Surface 6 / 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

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 23.7 — up to +15.3 composite points
Operational Transparency scores 0.0 — up to +13.0 composite points
Developer Ergonomics scores 35.7 — up to +12.9 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/acuity-scheduling/apis.yml: open an issue on github.com/api-evangelist/acuity-scheduling 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
Zoom App Marketplace and Partner Ecosystem (builders and partners on Zoom)	builds-on	20.3	-	-
Wix App Market (third-party apps for Wix sites)	builds-on	20.3	-	-
IFTTT Services (service publishers)	builds-on	20.3	-	-

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.

OpenAPI

measured — observed by APIs.io (published)

AsyncAPI

measured — observed by APIs.io (published)

APIs 5

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

Acuity Scheduling REST API v1

REST API for managing appointments, appointment types, clients, calendars, availability, intake forms, products, and webhooks in Acuity Scheduling. Supports HTTP Basic Auth (Use...

Acuity Scheduling Webhooks

AsyncAPI 2.6 definition for Acuity Scheduling's outbound webhook surface. Models the documented appointment events (scheduled, rescheduled, canceled, changed) and order events (...

Acuity Scheduling Appointments API

The Appointments API from Acuity Scheduling — 2 operation(s) for appointments.

Acuity Scheduling Meta API

The Meta API from Acuity Scheduling — 1 operation(s) for meta.

Acuity Scheduling Payments API

The Payments API from Acuity Scheduling — 1 operation(s) for payments.

Open Collections 5

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

Acuity Scheduling Appointments API

OPEN COLLECTION

Acuity Scheduling Webhooks

OPEN COLLECTION

Acuity Scheduling Appointments Meta API

OPEN COLLECTION

Acuity Scheduling Appointments Payments API

OPEN COLLECTION

Acuity Scheduling API

OPEN COLLECTION

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Acuity Scheduling API Rules

33 rules · 31 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

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

Acuity Scheduling Authentication

http · 1 scheme

SECURITY

Acuity Scheduling Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Acuity Scheduling Agentic Access

5 operations · 2 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Signup

Signup

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Commercial 1

Pricing, plans, and the legal terms of use

Pricing

Pricing

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: acuity-scheduling
name: Acuity Scheduling
description: Acuity Scheduling is an online appointment scheduling platform (a Squarespace product) used by service businesses,
  coaches, and practitioners to manage client bookings, calendars, intake forms, payments, and reminders. The Acuity REST
  API provides programmatic access to appointments, appointment types, clients, calendars, availability, forms, and webhooks
  at acuityscheduling.com/api/v1. Authentication uses HTTP Basic Auth (User ID + API Key) for single accounts or OAuth 2.0
  for multi-tenant applications.
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: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/acuity-scheduling.png
x-docs-platform: readme
x-docs-platform-confidence: high
x-docs-platform-checked: 2026-09-17
tags:
- Appointment Scheduling
- Booking
- Calendar
- Scheduling
- Squarespace
url: https://raw.githubusercontent.com/api-evangelist/acuity-scheduling/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-30'
specificationVersion: '0.23'
apis:
- aid: acuity-scheduling:rest-api-v1
  name: Acuity Scheduling REST API v1
  description: REST API for managing appointments, appointment types, clients, calendars, availability, intake forms, products,
    and webhooks in Acuity Scheduling. Supports HTTP Basic Auth (User ID + API Key) for single accounts and OAuth 2.0 for
    multi-user integrations.
  humanURL: https://developers.acuityscheduling.com/reference
  baseURL: https://acuityscheduling.com/api/v1
  tags:
  - Appointment Scheduling
  - Booking
  - Calendar
  - REST API
  properties:
  - type: Documentation
    url: https://developers.acuityscheduling.com/reference
  - type: GettingStarted
    url: https://developers.acuityscheduling.com/reference/quick-start
  - type: OAuth 2.0
    url: https://developers.acuityscheduling.com/docs/oauth2
  - type: GitHub SDK
    url: https://github.com/AcuityScheduling/acuity-js
- aid: acuity-scheduling:webhooks-asyncapi
  name: Acuity Scheduling Webhooks
  description: AsyncAPI 2.6 definition for Acuity Scheduling's outbound webhook surface. Models the documented appointment
    events (scheduled, rescheduled, canceled, changed) and order events (order.completed) delivered as application/x-www-form-urlencoded
    POST requests signed with an x-acuity-signature HMAC-SHA256 header.
  humanURL: https://developers.acuityscheduling.com/reference/webhooks
  tags:
  - Webhook
  - Event
  - AsyncAPI
  - Appointments
  - Order
  tags_raw:
  - Webhooks
  - Events
  - AsyncAPI
  - Appointments
  - Orders
  properties:
  - type: Documentation
    url: https://developers.acuityscheduling.com/reference/webhooks
  - type: Documentation
    url: https://developers.acuityscheduling.com/docs/webhooks.md
  - type: AsyncAPI
    url: https://raw.githubusercontent.com/api-evangelist/acuity-scheduling/refs/heads/main/openapi/acuity-scheduling-asyncapi.yml
- aid: acuity-scheduling:acuity-scheduling-appointments-api
  name: Acuity Scheduling Appointments API
  description: The Appointments API from Acuity Scheduling — 2 operation(s) for appointments.
  humanURL: https://developers.acuityscheduling.com/reference
  baseURL: https://acuityscheduling.com/api/v1
  tags:
  - Appointments
  properties:
  - type: OpenAPI
    url: openapi/acuity-scheduling-appointments-api-openapi.yml
- aid: acuity-scheduling:acuity-scheduling-meta-api
  name: Acuity Scheduling Meta API
  description: The Meta API from Acuity Scheduling — 1 operation(s) for meta.
  humanURL: https://developers.acuityscheduling.com/reference
  baseURL: https://acuityscheduling.com/api/v1
  tags:
  - Meta
  properties:
  - type: OpenAPI
    url: openapi/acuity-scheduling-meta-api-openapi.yml
- aid: acuity-scheduling:acuity-scheduling-payments-api
  name: Acuity Scheduling Payments API
  description: The Payments API from Acuity Scheduling — 1 operation(s) for payments.
  humanURL: https://developers.acuityscheduling.com/reference
  baseURL: https://acuityscheduling.com/api/v1
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/acuity-scheduling-payments-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/acuity-scheduling-agentic-access.yml
- type: DomainSecurity
  url: security/acuity-scheduling-domain-security.yml
- type: Authentication
  url: authentication/acuity-scheduling-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/acuity-scheduling
- type: Website
  url: https://acuityscheduling.com
- type: Documentation
  url: https://developers.acuityscheduling.com
- type: Pricing
  url: https://acuityscheduling.com/signup.php
- type: Signup
  url: https://acuityscheduling.com/signup.php
- type: LlmsText
  url: https://developers.acuityscheduling.com/llms.txt
- type: Blog
  url: https://www.acuityscheduling.com/learn
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Acuity Scheduling API — frequently asked questions

Does Acuity Scheduling have an API?

Yes. APIs.io lists 5 APIs from Acuity Scheduling, including Acuity Scheduling REST API v1, Acuity Scheduling Webhooks and Acuity Scheduling Appointments API, and 2 more.

Is there an OpenAPI specification for the Acuity Scheduling API?

Yes. APIs.io indexes 3 OpenAPI specifications for Acuity Scheduling, each linked for download from this page.

How do I authenticate with the Acuity Scheduling API?

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

Is the Acuity Scheduling API ready for AI agents?

Acuity Scheduling has a Kin Score of 31.4 out of 100 (thin) and an Agent Readiness score of 24.5 (agent-aware), scored by API Evangelist on 2026-11-06.

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