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Acuity Scheduling API and MCP server

Acuity Scheduling keeps its API behind the Premium plan, so Starter and Standard accounts have no key to give an agent. Sign in to Acuity Scheduling once in your own Cloud Browser, and your AI agent does the work there for you. The same tools work over MCP for agents and as a REST API for scripts.

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Not affiliated with Acuity Scheduling.

Acuity Scheduling has no API for this. So we run one for you.

Acuity Scheduling's own API, a GitHub MCP server and Cotlet compared
What you need Acuity Scheduling's APIGitHub MCP serverCotlet
Booking, rescheduling, blocked time No Partly Yes, 10 tools
Acts as you, signed in 24/7 No No Yes, Cloud Browser
Fixed for you when Acuity Scheduling changes N/A No Yes, tested every 6h
Runs with your laptop off N/A No Yes, hosted

Checked Oct 17, 2026. Sources: Acuity developers: Quick Start · Acuity developers: GET /appointments · Acuity Help: Using custom CSS, webhooks, and APIs · Acuity developers: Documentation index for LLMs

Your own Cloud Browser, on 24/7. Sign in once. We keep it connected.

  1. 01Sign in to Acuity Scheduling in your own Cloud Browser

  2. 02Connect it for your agents

  3. 03Cotlet keeps it signed in and working

How do I connect Acuity Scheduling to Claude, ChatGPT or my code?

AI agents connect over MCP, scripts call the REST API. Both reach the same 10 tools with one API key.

For AI agents: MCP

Add Cotlet to your agent once. Acuity Scheduling and every other app you connect show up as its tools.

  • Claude
  • ChatGPT
  • OpenClaw
  • Hermes
  • GrokBot
  • Cursor
  • n8n
  • Any MCP client
  1. 1

    Add Cotlet to your agent

    Claude Code
    claude mcp add --transport http cotlet \
  https://cotlet.dev/mcp/v1 \
  --header "Authorization: Bearer $COTLET_API_KEY"
    Cursor
    {
  "mcpServers": {
    "cotlet": {
      "url": "https://cotlet.dev/mcp/v1",
      "headers": {
        "Authorization": "Bearer ${COTLET_API_KEY}"
      }
    }
  }
}
    Codex
    # ~/.codex/config.toml
[mcp_servers.cotlet]
url = "https://cotlet.dev/mcp/v1"
bearer_token_env_var = "COTLET_API_KEY"

    Paste the snippet for your client. The same server and key serve every app you connect, so you do this once.

For scripts: REST API

Every tool is an endpoint under /api/v1/acuity-scheduling with its own method and path, such as POST /api/v1/acuity-scheduling/appointments/{appointment_id}/reschedule, with the same API key. Our open-source repo has ready scripts to start from.

REST API docs

What can the Acuity Scheduling API and MCP server do?

10 tools on your own Acuity Scheduling account. Agents call them as operations of the MCP tools acuity_scheduling_read and acuity_scheduling_write; scripts call each one at its own REST endpoint, with the same inputs and answers.

API reference
Acuity Scheduling tools in Cotlet's MCP server and REST API
Tool What it does Access
list_appointments Appointments with client, type, calendar, time and payment status, filtered by date, calendar, type or client. read
get_appointment One appointment with its intake form answers, notes, label and payment fields. read
list_appointment_types Your appointment types with duration, price and the calendars that offer each one. read
check_availability_dates Days in one month that have openings for an appointment type. read
check_availability_times Open times on one date for an appointment type. read
book_appointment Book a client into an open time for an appointment type. writeasks first
reschedule_appointment Move an appointment to a new date and time, or to another calendar. writeasks first
cancel_appointment Cancel an appointment, optionally marking a no-show. writeasks first
update_appointment Edit client name, phone, email, notes or label on an appointment. writeasks first
block_off_time Block a time range on a calendar so no new client can book it. writeasks first

Scroll the table for all 10 tools.

Ask in plain words. Your agent does the rest.

All Acuity Scheduling use cases

Is it safe to connect Acuity Scheduling?

You sign in yourself in your own Cloud Browser, we never save your password, and anything that reaches your readers waits for your OK. The browser profile is encrypted in the EU. Independent scanners grade cotlet.dev A+.

Security overview

How much do the Acuity Scheduling API and MCP server cost?

One price for both: a tool call costs the same over MCP or REST. Free 7-day trial with 2,000 credits, no card needed. Then one-time credit packs, no subscription, valid 12 months. Most calls use 25 credits, and your Cloud Browser uses 50 credits a day while Acuity Scheduling is enabled for agents, so 20 calls a day come to 550 credits.

See full pricing
Cotlet credit packs: price, credits and calls at 25 credits each
Credits Price, one time Calls at 25 credits Per 1,000 credits
5,000 $29 200 $5.80
15,000 $79 600 $5.27
32,000 $149 1,280 $4.66
60,000 $249 2,400 $4.15

Only successful calls use credits; failed calls and timeouts cost nothing. At a balance of 0 calls pause, never a surprise charge. Authenticate with the Authorization: Bearer header.

Questions

Does Acuity Scheduling have an API?

Acuity Scheduling has a full REST API but no official MCP server (checked 17 Oct 2026). The API uses HTTP Basic auth with your user ID and API key, and Acuity says API access is available on the Premium plan (formerly Powerhouse), so Starter and Standard accounts have no key to give an agent.

How do I get access?

Sign up free, open Acuity Scheduling under Integrations in the console and press Request access. Your free trial starts with your account, no card needed.

Is the MCP server different from the API?

No, only the way in. Cotlet builds each integration as a REST API and puts an MCP server on top, so both have the same 10 tools, the same inputs and answers, one API key and one price. AI agents such as Claude, ChatGPT or Cursor use MCP; scripts, cron jobs and HTTP steps in n8n, Make or Zapier use the REST API.

What is the Cloud Browser?

Your own Chrome that Cotlet runs for you in the EU, around the clock. You open it from the console, sign in to Acuity Scheduling yourself and press Enable for agents. Your agent's calls go through it, from its IP with its cookies, so Acuity Scheduling sees the browser you signed in with. Password saving is off and the profile is stored encrypted with AES-256-GCM.

Can my agent act without asking me?

Not on anything that reaches other people: book_appointment, reschedule_appointment, cancel_appointment, update_appointment, block_off_time wait for your OK by default. You can switch that off per tool for scheduled runs.

Which Acuity plan do I need?

Acuity says API access and CSS customization are on the Premium plan (formerly Powerhouse), and webhooks are on any plan (checked 17 Oct 2026). Cotlet works through the Acuity web app you sign in to, not through the API key, so there is no key to find or store. Features your plan does not include stay unavailable to your agent too.

Should I use a Acuity Scheduling MCP server from GitHub instead?

Pick one if you want the code on your own computer and do not mind the upkeep: you install it, sign it in and fix it when Acuity Scheduling changes. Pick Cotlet if you want it hosted and kept working for you.

Can I use it in n8n, Make or Zapier?

Yes. Add https://cotlet.dev/mcp/v1 in n8n's MCP Client node, or call the REST endpoints from an HTTP step in Make or Zapier.

Who runs Cotlet?

Cotlet is run by Take Group, a Polish software company working since 2019. Take Group runs about 3,200 websites on its own systems and has its own DevOps team for infrastructure security. We built and used integrations like this inside the company for years before opening them as Cotlet.

Is Cotlet affiliated with Acuity Scheduling?

No. Cotlet is independent and not affiliated with Acuity Scheduling.

Give your agent access to Acuity Scheduling.

Free 7-day trial with 2,000 credits, no card needed.

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