Read Halaxy patients, appointments, slots and invoices; create patients, appointments and notes. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the Halaxy connector, then ask in plain words. The AI picks the tools.
For allied health and wellbeing practices that run their clinic in Halaxy and want help with scheduling and fees.
The AI finds appointment times in a date range for a given duration, narrowed to a practitioner or clinic, and respects your online booking preferences.
The AI lists the schedules of your practitioners and their time slots, so you can see which times are open or busy this week.
The AI lists the appointment types and the fees your practice charges for, so you can check the price list in one place.
The AI lists the practitioners, their roles at each clinic location and the practice group, with the ids you need for other tools.
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 Region, Client ID and Client Secret.
Buy the API add-on under Add-ons (only the account owner can), then open Developer in Halaxy, create an API key and copy the Client ID and Client Secret (Halaxy docs). Choose UK and EU if your practice is in the UK or EU, otherwise Australia and rest of world. Your credentials are used only to call the Halaxy API on your behalf; they are never shown to anyone.
Team and Enterprise: an Owner adds the connector for the organization first.
No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"halaxy": {
"url": "https://halaxy.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"halaxy": {
"type": "http",
"url": "https://halaxy.usefulapi.io/mcp"
}
}
} Run these commands. The second one opens the login page:
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.
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 Region, Client ID and Client Secret. 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.
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper account | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+per account | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this Halaxy server only. Ask your AI to run halaxy_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 halaxy_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 halaxy_upgrade before then undoes the cancel. Or write to [email protected].
halaxy_list_patientshalaxy_list_practitionershalaxy_list_practitioner_roleshalaxy_list_organizationshalaxy_list_appointmentshalaxy_list_scheduleshalaxy_list_slotshalaxy_list_healthcare_serviceshalaxy_list_feeshalaxy_list_coveragehalaxy_list_invoiceshalaxy_list_invoice_lineshalaxy_list_payment_transactionshalaxy_list_referralshalaxy_list_referral_definitionshalaxy_get_patienthalaxy_get_practitionerhalaxy_get_practitioner_rolehalaxy_get_organizationhalaxy_get_appointmenthalaxy_get_schedulehalaxy_get_slothalaxy_get_healthcare_servicehalaxy_get_feehalaxy_get_coveragehalaxy_get_invoicehalaxy_get_invoice_linehalaxy_get_payment_transactionhalaxy_get_referralhalaxy_get_referral_definitionhalaxy_find_available_appointmentshalaxy_create_patienthalaxy_create_appointmenthalaxy_update_appointment_statushalaxy_create_clinical_notehalaxy_usage_statushalaxy_request_featurehalaxy_upgradehalaxy_cancel_subscriptionFind open appointment times. Browse schedules and time slots. List your appointment types and fees. See your practitioners and clinics. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Halaxy. The server calls the Halaxy API with your own Halaxy access, so it sees only the data that your account can see.
No. Do not use this server with protected health information (PHI). We do not sign HIPAA Business Associate Agreements (BAAs). See Terms, Health data.
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.
The login page asks for your Region, Client ID and Client Secret. 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 Region, Client ID and Client Secret. 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 Halaxy 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 Halaxy.
Yes, if you approve it. 4 of the 35 Halaxy tools can create or change data. The other 31 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.
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 Halaxy server only. Cancel any time: your paid plan then runs to the end of the paid period. Run halaxy_usage_status to see how many calls you used.
Ask the AI to run halaxy_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 halaxy_cancel_subscription. Your paid plan continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with halaxy_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, 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.