Nookal MCP server

Read Nookal locations, practitioners, availability, appointments, clients, cases and invoices. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.

Connect Nookal50 free tool calls a month

What can I ask?

Turn on the Nookal connector, then ask in plain words. The AI picks the tools.

How many appointments do we have booked tomorrow, and with which practitioners?
What free appointment slots are left next week?
Find the client record for Jane Smith and show her contact details.
Which invoices were issued this month and what payments came in?

What you can do with Nookal in Claude and ChatGPT

For clinic managers and front-desk staff at allied-health clinics who use Nookal.

List our clinic locations and practitioners

Lists the clinic's locations with address and time zone, and staff and practitioners with title, speciality, locations and whether they can be booked online.

Find open appointment slots

Gets the open appointment slots per date for up to 60 days, for chosen locations, practitioners and a service, with start time and practitioner.

Review our services and class types with price and duration

Lists the appointment types and class types the clinic offers, with category, duration in minutes, price, location and online-booking settings.

How do I connect Nookal?

Before you connect

Patient data: Do not use this server with protected health information (PHI). We do not sign HIPAA Business Associate Agreements (BAAs). See Terms, Health data.

The login page asks for your API v3.0 Basic Key and Nookal region.

In Nookal go to Setup → Connections → API v3.0 (GraphQL) → Create New Client, select the locations, enable the queries you want (Locations, Staff, Services, Classes, Appointments, Availabilities, Clients, Cases, Invoices, Payments; no mutations needed), set it Active and copy the Basic Key (shown only once). No API v3.0 menu? Ask Nookal support to enable it. Your key is used only to call the Nookal API on your behalf and to derive a private account id; it is never shown to anyone.

Claude claude.ai · Desktop

Open Customize → Connectors, then click + Add → Add custom connector.
Enter the name Nookal and this URL, then click Add:
https://nookal.usefulapi.io/mcp
Claude opens the login page: enter your API v3.0 Basic Key and Nookal region.
In a chat, click + → Connectors and turn on Nookal.

Team and Enterprise: an Owner adds the connector for the organization first.

ChatGPT chatgpt.com

Open Plugins, click +, then Add custom MCP server.
Enter the name Nookal and this URL, choose OAuth as the authentication, confirm the warning and create it:
https://nookal.usefulapi.io/mcp
ChatGPT opens the login page: enter your API v3.0 Basic Key and Nookal region.
In Plugins, install Nookal, then choose it in a chat.

No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.

Claude Code

Run this command, then run /mcp in Claude Code to log in:

claude mcp add --transport http nookal https://nookal.usefulapi.io/mcp

Cursor

Add to Cursor or add this to ~/.cursor/mcp.json:

{
  "mcpServers": {
    "nookal": {
      "url": "https://nookal.usefulapi.io/mcp"
    }
  }
}

VS Code

Add to VS Code or add this to .vscode/mcp.json:

{
  "servers": {
    "nookal": {
      "type": "http",
      "url": "https://nookal.usefulapi.io/mcp"
    }
  }
}

Codex

Run these commands. The second one opens the login page:

codex mcp add nookal --url https://nookal.usefulapi.io/mcp

codex mcp login nookal

Other clients

Windsurf, Cline, Zed and other MCP clients: add this URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser.

https://nookal.usefulapi.io/mcp

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 API v3.0 Basic Key and Nookal region. 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.

Pricing

Plan	Price	Limit
Free	$0	50 tool calls / month
Proper user	$9/mo · $90/yr	10,000 tool calls / month
Pro+per user	$39/mo · $390/yr	100,000 tool calls / month

Each paid plan covers this Nookal server only. Ask your AI to run nookal_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with nookal_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with nookal_upgrade before then undoes the cancel. Or write to support@usefulapi.io.

Tools 15

Show all 15 tools (the AI picks them for you)

Read only · 11

List locationsnookal_list_locations
List the clinic's locations (id, name, address, time zone, active). Location ids are needed by most other tools. Only the locations your API client was granted are returned. Nookal GraphQL: locations.
List practitioners and staffnookal_list_staff
List staff members and practitioners (id, name, title, speciality, email, location ids, whether they are a provider / bookable online / active). Use the staff ids as provider_ids in list_appointments and staff_ids in get_availability. Nookal GraphQL: staff.
List services (appointment types)nookal_list_services
List the appointment types / services offered (id, name, category, duration in minutes, price, location, online-booking settings). Use a service id in get_availability. Nookal GraphQL: services.
List class typesnookal_list_classes
List the class types offered (id, name, category, duration, price, location, online-booking settings) — the class definitions, not individual sessions. Nookal GraphQL: classes.
Get appointment availabilitynookal_get_availability
Get the free appointment slots per date between two dates (max 60 days, Nookal's limit), optionally for given locations, practitioners and a service. Each slot has its date, start time (24h, clinic local time), provider id and location id. Read-only: it does not book anything. Nookal GraphQL: availabilities.
List appointmentsnookal_list_appointments
List appointments (date, start/end time, status, type, client, practitioner, case, location, arrived / did-not-arrive flags, notes), filtered by date range, location, client, practitioner, type and status. Dates are clinic local. Nookal GraphQL: appointments.
Search clients (patients)nookal_search_clients
Find clients (patients) by name, date of birth, mobile, email or id. Returns id, name, date of birth, location, active/deceased flags and contact details. With partial_match, names match on their first letters (e.g. 'Sm' finds Smith). Nookal GraphQL: clients.
Get a client (patient)nookal_get_client
Get one client (patient) by id: name, date of birth, contact details, addresses, alerts, allergies, notes, occupation, referring doctor and their treatment cases; optionally a summary of their invoices (totals and balances). Health-fund, pension and online-booking codes are not returned. Nookal GraphQL: clients.
List treatment casesnookal_list_cases
List treatment cases (id, client, title, start and referral dates, referrer, primary practitioner, notes), filtered by client, case or practitioner. Nookal GraphQL: cases.
List invoicesnookal_list_invoices
List invoices with their line items and payments (number, client, case, location, practitioner, date, subtotal, tax, total, paid, balance), filtered by location, invoice id or creation date. For one client's invoices use get_client with include_invoices. Nookal GraphQL: invoices.
List invoice paymentsnookal_list_payments
List payments received against invoices (method, amount, date, reference, invoice, client, location), filtered by invoice or payment date. Nookal GraphQL: payments.

Your usefulapi plan · 4

Usage status (free-tier meter)nookal_usage_status
Report the caller's current usage: the plan, calls used this month, the limit of the plan (the free monthly cap or the Pro fair use limit), remaining, and whether the limit is reached. Read-only; does not count against the meter.
Request a missing featurenookal_request_feature
Tell usefulapi that the user needs something the Nookal 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.
Upgrade to Pro or Pro+nookal_upgrade
Get a paid plan for Nookal (the free tier caps monthly usage). Pro: 10,000 tool calls a month, for normal use — plan "monthly" ($9/month) or "yearly" ($90/year, 2 months free). Pro+: 100,000 tool calls a month, for automations and heavy use — plan "plus" ($39/month) or "plus_yearly" ($390/year). Without a plan it returns both Pro and Pro+, each with a payment link, for the user to choose; with a plan, one link. An existing Pro subscription changes to Pro+ in place: call without confirm first, as the reply states the exact charge for this account (the price difference for the rest of the period, or in a free Pro trial the full Pro+ price, as the trial ends); then call with confirm: true. Cancel any time: the plan then runs to the end of the paid period, so it also suits a one-time job. A link opens Stripe Checkout in the browser; after payment the account upgrades automatically. Does not count against the meter.
Cancel the Pro subscriptionnookal_cancel_subscription
Cancel the caller's Nookal Pro subscription at the end of the paid period (no refund for the current period; Pro continues until then, then the free tier applies). Requires confirm: true. Run nookal_upgrade later to undo the cancel before the period ends. Does not count against the meter.

FAQ

What can I do with Nookal in Claude or ChatGPT?

List our clinic locations and practitioners. Find open appointment slots. Review our services and class types with price and duration. See what you can do for the details.

Is this an official Nookal product?

No. usefulapi is an independent service. It is not affiliated with or endorsed by Nookal. The server calls the Nookal API with your own Nookal access, so it sees only the data that your account can see.

Can I use this server with patient data (PHI)?

No. Do not use this server with protected health information (PHI). We do not sign HIPAA Business Associate Agreements (BAAs). See Terms, Health data.

Can I connect Nookal to Claude or ChatGPT?

Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.

What do I need to connect?

The login page asks for your API v3.0 Basic Key and Nookal region. See Before you connect for where to find them.

Do I put my Nookal key or an Authorization header in the client config?

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 API v3.0 Basic Key and Nookal region. 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.

How do you keep my Nookal credentials?

The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Nookal 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 Nookal.

Can the AI change my Nookal data?

All 11 Nookal tools are marked read-only.

What does it cost?

The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with 10,000 tool calls / month. Pro+ costs $39/mo or $390/yr, with 100,000 tool calls / month. Each subscription covers this Nookal server only. Cancel any time: your paid plan then runs to the end of the paid period. Run nookal_usage_status to see how many calls you used.

How do I subscribe or cancel?

Ask the AI to run nookal_upgrade and choose Pro or Pro+, billed monthly or yearly: it returns a Stripe Checkout link. If you already have Pro, ask to change it to Pro+. After you confirm, your existing subscription changes in place, keeps its billing interval and charges the price difference for the rest of the period immediately. To cancel, run nookal_cancel_subscription. Your paid plan continues to the end of the paid period.

What if a Nookal tool that I need is missing?

Tell the AI what you wanted to do. It can send the request with nookal_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.

Which AI clients can I use?

Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, 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.

Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.

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