Skip to content

com.stayker/1stay

by stayker.com · remote · no sign-in to list tools · v1.0.0 · published by com.stayker

Hotel booking MCP server. Search, book, and manage reservations across 250K+ properties worldwide.

Deletes · 1Final · 1Changes · 1
CompareRegistry entry

8 tools: 1 can delete or cancel things, 1 do something that can't be undone, 1 change things and 5 only read.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http 1stay https://mcp.stayker.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warncancel_booking

    The server marks "cancel_booking" not destructive (destructiveHint: false), and its own name, description or input give the class "destructive".

    Matched text

    annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "cancel_booking" says "cancel": a word for removing or ending something.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

8 tools

Deletes or cancels 1Claude Code: deny
  • cancel_bookingPrepare a hotel cancellation for completion on a secure 1Stay page.1 finding

    Why it is in this group

    • The name "cancel_booking" says "cancel": a word for removing or ending something.
    • The server marks it not destructive (destructiveHint: false), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "cancel_booking" not destructive (destructiveHint: false), and its own name, description or input give the class "destructive".

      Matched text

      annotations: {"readOnlyHint":false,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "cancel_booking" says "cancel": a word for removing or ending something.

      What this check looks for
    Description, as the server wrote it
    Prepare a hotel cancellation for completion on a secure 1Stay page. Verifies the guest's first name, last name, and hotel confirmation number, then returns the hotel policy classification and any cancellation deadline recorded with the reservation, plus a short-lived cancellation_url. 1Stay does not estimate a refund, credit, penalty, or hotel charge. Calling this tool never cancels the reservation. The guest must review the terms and select Cancel reservation on the secure page. A later verified booking-status lookup reporting status cancelled is the authoritative confirmation that the reservation was cancelled.

    Annotations the server declares

    • title: Cancel Booking
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Can't be undone 1Claude Code: ask
  • resend_confirmationResend a hotel reservation confirmation email.No findings

    Why it is in this group

    • The name "resend_confirmation" says "resend": a word for sending, and what is sent cannot be taken back.
    Description, as the server wrote it
    Resend a hotel reservation confirmation email. Use either the confirmation number from a successful lookup_booking call, or the guest's full name and email address when they do not know their confirmation number, card last four, or check-in date. The email contains the hotel confirmation number the guest can then use with lookup_booking or cancel_booking. Recovery requests never reveal whether a reservation matched. The confirmation is sent only to the email address already on the booking record; there is no recipient override. Email changes are handled at https://stayker.com/service.

    Annotations the server declares

    • title: Resend Confirmation
    • readOnlyHint: false
    • destructiveHint: false
    • openWorldHint: true
Changes things 1Claude Code: ask
  • book_hotelBook exactly one hotel room.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Book exactly one hotel room. The first 1Stay release does not support multi-room searches or reservations. Returns a secure checkout URL. This tool accepts no guest identity or payment fields. Name, email, phone, and payment details are collected on the secure checkout page. Guest pays the hotel directly. Their credit card statement shows the hotel name, not 1Stay. Hotel's own confirmation number. Loyalty points apply automatically. The displayed total includes taxes and any applicable, itemized 1Stay Booking Fee. Requires a rate_code from get_hotel_details, valid approximately 15 minutes. Expired codes are rejected.

    Annotations the server declares

    • title: Book Hotel
    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Only reads 5Claude Code: allow
  • get_bookingLook up a reservation exclusively by the hotel confirmation number shown in the guest's confirmation email.No findings

    Why it is in this group

    • The name "get_booking" says "get": a word for reading.
    Description, as the server wrote it
    Look up a reservation exclusively by the hotel confirmation number shown in the guest's confirmation email. Internal Stayker booking IDs are never accepted or disclosed by MCP. Returns full booking details including hotel, dates, guest info, rate, and status. Anonymous access requires a verification_token issued by lookup_booking and scoped to a single booking. Without a valid token, no booking data is returned. Developers authenticated with their own API key do not need a token; their access is scoped to their own bookings.

    Annotations the server declares

    • title: View Booking Details
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • get_hotel_detailsGet rates and room details for exactly one room at a specific hotel.No findings

    Why it is in this group

    • The name "get_hotel_details" says "get": a word for reading.
    Description, as the server wrote it
    Get rates and room details for exactly one room at a specific hotel. Returns room types, live rates, amenities, cancellation policies, and rate_codes required by book_hotel. Guest pays the hotel directly. Displayed totals include taxes and any applicable, itemized 1Stay Booking Fee. Loyalty points eligible. Room type notes: "Run of house" means the hotel assigns the room at check-in. "Suite" at select-service brands usually means a larger room with a sofa, not a separate bedroom.

    Annotations the server declares

    • title: Hotel Details
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • lookup_bookingLook up a reservation by verifying the guest's identity.No findings

    Why it is in this group

    • The name "lookup_booking" says "lookup": a word for reading.
    Description, as the server wrote it
    Look up a reservation by verifying the guest's identity. Returns the confirmation number and booking summary in conversation. Requires the guest's full name plus either the hotel confirmation number, or the booking email together with the last 4 digits of the card used to book. An email address alone is not enough. An optional check-in date can narrow repeat stays.

    Annotations the server declares

    • title: Find Reservation
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • search_hotelsSearch hotels by location and dates for exactly one room.No findings

    Why it is in this group

    • The name "search_hotels" says "search": a word for reading.
    Description, as the server wrote it
    Search hotels by location and dates for exactly one room. Returns available properties with nightly rates across major brands, boutique, and independent hotels. The first 1Stay release supports one room per search and reservation. Guest pays the hotel directly. Hotel's own confirmation number. Loyalty points apply.

    Annotations the server declares

    • title: Search Hotels
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: true
  • search_toolsList available 1Stay hotel booking tools.No findings

    Why it is in this group

    • The name "search_tools" says "search": a word for reading.
    Description, as the server wrote it
    List available 1Stay hotel booking tools. An optional keyword filters by search, book, cancel, or details; absence of a keyword returns all tools.

    Annotations the server declares

    • title: Search Tools
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http 1stay https://mcp.stayker.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__1stay__search_hotels",
      "mcp__1stay__get_hotel_details",
      "mcp__1stay__lookup_booking",
      "mcp__1stay__get_booking",
      "mcp__1stay__search_tools"
    ],
    "ask": [
      "mcp__1stay__book_hotel",
      "mcp__1stay__resend_confirmation"
    ],
    "deny": [
      "mcp__1stay__cancel_booking"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as 1stay. Review it before you use it.