Check open slots, list bookings, services and staff, book appointments and group events in Reservio. For businesses that take bookings in Reservio, such as salons, clinics and studios. Hosted by usefulapi — connect from Claude, ChatGPT, 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": {
"reservio": {
"url": "https://reservio.usefulapi.io/mcp"
}
}
}Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"reservio": {
"type": "http",
"url": "https://reservio.usefulapi.io/mcp"
}
}
}No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run these commands. The second one opens the login page:
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.
Pick a service and a date range. See which days have an open slot and the exact start times, for all staff or for one person.
reservio_list_services reservio_get_booking_days reservio_get_booking_slots
List the bookings sorted by creation time, newest first. Read the client name, state and cost of each one to spot new bookings.
reservio_list_bookings reservio_list_events
Read the staff members and their rosters for a date. Compare them with the opening hours of the business.
reservio_list_resources reservio_list_rosters reservio_list_opening_hours
Find an open slot for a service, then create the appointment booking for the client. Reservio may notify the client.
Changes data · reservio_get_booking_slots reservio_create_appointment_booking
Find the days with open group events, pick the event and book the client into it. Reservio may notify the client.
Changes data · reservio_get_event_days reservio_list_events reservio_create_group_booking
The login page asks for your Reservio API access token and Business id.
API access is part of the Reservio Pro plan. Ask Reservio customer care to issue an API access token for your account. They can also tell you the business id. Your token is used only to call the API on your behalf and to derive a private account id; it is 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 Reservio API access token and Business id. 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 Reservio connector, then ask in plain words. The AI picks the tools.
| Tool | Type | What it does |
|---|---|---|
reservio_get_business | read | Get a business Get the business profile: name, address, contact details, time zone. Reservio API: GET /businesses/{businessId}. |
reservio_list_services | read | List services List the services clients can book, with duration, price and capacity. Reservio API: GET /businesses/{businessId}/services. |
reservio_get_service | read | Get a service Get one service by id. Reservio API: GET /businesses/{businessId}/services/{serviceId}. |
reservio_list_resources | read | List resources (staff) List bookable resources, such as staff members or rooms. Reservio API: GET /businesses/{businessId}/resources. |
reservio_get_resource | read | Get a resource Get one resource (staff member or room) by id. Reservio API: GET /businesses/{businessId}/resources/{resourceId}. |
reservio_list_events | read | List events List calendar events (appointments, group events, blocked time) with start, end, type and capacity. Reservio API: GET /businesses/{businessId}/events. |
reservio_list_bookings | read | List bookings List bookings with client name, state, cost and linked event. Sort by -createdAt to see the newest first (Reservio has no webhooks, so polling this is the way to find new bookings). Reservio API: GET /businesses/{businessId}/bookings. |
reservio_list_coupons | read | List coupons List coupons (credit or visit packages). Reservio API: GET /businesses/{businessId}/coupons. |
reservio_get_coupon | read | Get a coupon Get one coupon by id. Reservio API: GET /businesses/{businessId}/coupons/{couponId}. |
reservio_list_opening_hours | read | List opening hours List the opening hours of the business (days and start/end in seconds from midnight). Reservio API: GET /businesses/{businessId}/opening-hours. |
reservio_list_rosters | read | List rosters List staff work schedules (rosters) per resource and date. Reservio API: GET /businesses/{businessId}/rosters. |
reservio_get_booking_slots | read | Get free booking slots List free time slots for a service in a date range, optionally for one resource. Use before creating a booking. Reservio API: GET /businesses/{businessId}/availability/booking-slots. |
reservio_get_booking_days | read | Get bookable days For each day in a range, tell whether any slot is free for a service. Reservio API: GET /businesses/{businessId}/availability/booking-days. |
reservio_get_event_days | read | Get days with open events For each day in a range, tell whether a group event is open for booking. Reservio API: GET /businesses/{businessId}/availability/event-days. |
reservio_create_appointment_booking | write | Create an appointment booking WRITE: create a real appointment booking for a service at a start/end time (use a slot from reservio_get_booking_slots). Reservio may notify the client. Not safe to repeat: a second call books a second appointment. Reservio API: POST /businesses/{businessId}/bookings. |
reservio_create_group_booking | write | Book a group event WRITE: book a client into an existing group event (event id from reservio_list_events). Reservio may notify the client. Not safe to repeat: a second call books a second seat. Reservio API: POST /businesses/{businessId}/bookings. |
reservio_usage_status | Usage status (free-tier meter) 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. | |
reservio_request_feature | Request a missing feature Tell usefulapi that the user needs something the Reservio 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. | |
reservio_upgrade | Upgrade to Pro (unlimited*) Get Pro: unlimited tool calls (fair use limit: 10,000 a month) on Reservio (the free tier caps monthly usage). Plans: "monthly" — $9/month; "yearly" — $90/year (2 months free). Cancel any time: Pro then runs to the end of the paid period, so it also suits a one-time job. *A fair use limit applies. For heavy use (near Pro's limit): "plus" or "plus_yearly" — Pro+, $39/month or $390/year, unlimited tool calls (fair use limit: 100,000 a month); an existing Pro subscription changes to Pro+ in place (needs confirm: true; the price difference for the rest of the period is charged at once). Otherwise returns a short link to open in your browser (it opens Stripe Checkout); after payment the account upgrades automatically. Does not count against the meter. | |
reservio_cancel_subscription | Cancel the Pro subscription Cancel the caller's Reservio 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 reservio_upgrade later to undo the cancel before the period ends. Does not count against the meter. |
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Proper user | $9/mo · $90/yr | Unlimited* |
*Pro fair use limit: 10,000 tool calls a month on this server. For more, write to [email protected].
Pro covers this Reservio server only. Subscribe with reservio_upgrade (it returns a Stripe Checkout link). Cancel any time with reservio_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running reservio_upgrade before then undoes the cancel. Or write to [email protected].
Find open slots for a service next week. Poll for the newest bookings. Check who works on a given day. Book a client into an open appointment slot. Add a client to a group event. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Reservio. The server calls the Reservio API with your own Reservio access, so it sees only the data that your account can see.
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 Reservio API access token and Business id. 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 Reservio API access token and Business id. 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 Reservio 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 Reservio.
Yes, if you approve it. 2 of the 16 Reservio 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 50 tool calls / month. Pro costs $9/mo or $90/yr, with unlimited tool calls (fair use limit: 10,000 tool calls a month), for this Reservio server only. Cancel any time: Pro then runs to the end of the paid period. Run reservio_usage_status to see how many calls you used.
Ask the AI to run reservio_upgrade: it returns a Stripe Checkout link. To cancel, run reservio_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 reservio_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.