Read appointments, types, calendars and availability; create, cancel or reschedule bookings. Hosted by usefulapi — connect from Claude, Cursor, or any MCP client.
Team and Enterprise: an Owner adds the connector for the organization first.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"acuity-scheduling": {
"url": "https://acuity-scheduling.usefulapi.io/mcp"
}
}
}Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"acuity-scheduling": {
"type": "http",
"url": "https://acuity-scheduling.usefulapi.io/mcp"
}
}
}Other MCP clients (Windsurf, Cline, Zed and more): add the URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser. Do not add an Authorization header: see Before you connect.
The login page asks for your Acuity User ID and API Key.
Find both in Acuity → Integrations → API (your User ID and API Key are shown there). Your credentials are used only to call the API on your behalf and to derive a private account id; they are never shown to anyone.
Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Acuity User ID and API Key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
Turn on the Acuity Scheduling connector, then ask in plain words. The AI picks the tools.
| Tool | Type | What it does |
|---|---|---|
acuity_list_appointments | read | List appointments List appointments scheduled on the account, with optional filters. Acuity REST: GET /appointments. |
acuity_get_appointment | read | Get appointment Get a single appointment by its id. Acuity REST: GET /appointments/{id}. |
acuity_list_appointment_types | read | List appointment types List the account's appointment types (services and classes), including price, duration and calendars. Acuity REST: GET /appointment-types. |
acuity_list_calendars | read | List calendars List the account's calendars (staff/resources appointments can be booked on). Acuity REST: GET /calendars. |
acuity_availability_dates | read | Get available dates List dates in a month that have availability for an appointment type. Acuity REST: GET /availability/dates. |
acuity_availability_times | read | Get available times List available time slots on a given date for an appointment type. Acuity REST: GET /availability/times. |
acuity_availability_classes | read | Get available classes List group class time slots (for class-type appointment types) in a month. Acuity REST: GET /availability/classes. |
acuity_list_clients | read | List clients List clients on the account, optionally filtered by a search string (name/email/phone). Acuity REST: GET /clients. |
acuity_list_forms | read | List intake forms List the account's custom intake forms and their fields. Acuity REST: GET /forms. |
acuity_list_products | read | List products List the account's products / packages / gift certificates for sale. Acuity REST: GET /products. |
acuity_list_orders | read | List orders List store orders (product / package / gift-certificate purchases). Acuity REST: GET /orders. |
acuity_list_blocks | read | List blocked-off times List blocked-off (unavailable) time ranges on the account's calendars. Acuity REST: GET /blocks. |
acuity_list_labels | read | List labels List the appointment labels (colored tags) defined on the account. Acuity REST: GET /labels. |
acuity_get_me | read | Get account info Get the authenticated Acuity account's profile (name, email, timezone, plan, currency). Acuity REST: GET /me. |
acuity_create_appointment | write | Create appointment CREATES a new appointment (books a client into a time slot). This MODIFIES the calendar and, unless suppressed, may send confirmation emails. Acuity REST: POST /appointments. |
acuity_cancel_appointment | write | Cancel appointment CANCELS an existing appointment. This MODIFIES the calendar and, unless suppressed, may send cancellation emails. Acuity REST: PUT /appointments/{id}/cancel. |
acuity_reschedule_appointment | write | Reschedule appointment RESCHEDULES an existing appointment to a new time (and optionally a new calendar). This MODIFIES the calendar and, unless suppressed, may send update emails. Acuity REST: PUT /appointments/{id}/reschedule. |
acuity_create_client | write | Create client CREATES a new client record in the account's client list. This ADDS data to the account. Acuity REST: POST /clients. |
acuity_usage_status | Usage status (free-tier meter) Report the caller's current free-tier usage this month: calls used, monthly limit, remaining, and whether the cap is reached. Read-only; does not count against the meter. | |
acuity_request_feature | Request a missing feature Tell usefulapi that the user needs something the Acuity Scheduling tools cannot do yet (a missing tool, field or filter). Call it only when the user asks for something none of the tools can do, and tell the user that you send the request. Do not call it for errors or for normal requests. Do not include personal data, credentials or customer records. Stored with the product name and the client type (for example Claude or Cursor), without the user's account. At most 5 requests per day. Does not count against the meter. | |
acuity_upgrade | Upgrade to Pro (unlimited) Subscribe to the Pro plan for UNLIMITED Acuity Scheduling tool calls (the free tier caps monthly usage). Choose monthly ($9/month) or yearly ($90/year — 2 months free) billing. Returns a Stripe Checkout link to open in your browser; after payment your account upgrades automatically. Does not count against the meter. | |
acuity_cancel_subscription | Cancel the Pro subscription Cancel the caller's Acuity Scheduling Pro subscription at the end of the paid period (no refund for the current period; unlimited calls continue until then, then the free tier applies). Requires confirm: true. Run acuity_upgrade later to undo the cancel before the period ends. Does not count against the meter. |
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 100 tool calls / month |
| Proper user | $9/mo · $90/yr | Unlimited |
Pro covers this Acuity Scheduling server only. Subscribe with acuity_upgrade (it returns a Stripe Checkout link). Cancel any time with acuity_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running acuity_upgrade before then undoes the cancel. Or write to [email protected].
No. usefulapi is an independent service. It is not affiliated with or endorsed by Acuity Scheduling. The server calls the Acuity Scheduling API with your own Acuity Scheduling access, so it sees only the data that your account can see.
The login page asks for your Acuity User ID and API Key. See Before you connect for where to find them.
No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Acuity User ID and API Key. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Acuity Scheduling API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in Acuity Scheduling.
Yes, if you approve it. 4 of the 18 Acuity Scheduling tools can create or change data. The other 14 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.
The Free plan gives 100 tool calls / month. Pro costs $9/mo or $90/yr, with unlimited tool calls, for this Acuity Scheduling server only. Run acuity_usage_status to see how many calls you used.
Ask the AI to run acuity_upgrade: it returns a Stripe Checkout link. To cancel, run acuity_cancel_subscription. Pro continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with acuity_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.
Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, Cursor, VS Code, Windsurf and others.
This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.