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RentalCal

by rentalcal.com · remote · no sign-in to list tools · v1.1.0 · published by com.rentalcal

Find direct-booking vacation rentals, check availability, and get stay quotes.

Final · 1
CompareRegistry entry

4 tools: 1 do something that can't be undone and 3 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 rentalcal https://api.rentalcal.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warncheck_availability

    The server marks "check_availability" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The input addresses people (input.to): what it sends cannot be taken back.

    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.

4 tools

Can't be undone 1Claude Code: ask
  • check_availabilityBooked nights and the open date ranges a stay can actually be booked in, with minimum-stay rules applied.1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "check_availability" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Booked nights and the open date ranges a stay can actually be booked in, with minimum-stay rules applied. bookableUntil is the first night the host's booking window has not opened yet (null for no limit); nights after it are not open rather than taken. Defaults to the next 90 days; at most 365 days per call. Ranges are check-in inclusive, check-out exclusive.

    Annotations the server declares

    • title: Check availability
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
Only reads 3Claude Code: allow
  • find_propertyLook up a vacation rental by its RentalCal booking site, or by the page on the host's own website where their RentalCal booking widget is installed.No findings

    Why it is in this group

    • The name "find_property" says "find": a word for reading.
    Description, as the server wrote it
    Look up a vacation rental by its RentalCal booking site, or by the page on the host's own website where their RentalCal booking widget is installed. Accepts a site address such as beach-house.rentalcal.com, a full URL, the bare site name, or the host's own domain. Returns the listing: description, location, capacity, amenities, house rules, photos, nightly pricing, cancellation policy, payment schedule, damage deposit, the host's FAQ, and the property id. When one website hosts several properties, returns those candidates instead.

    Annotations the server declares

    • title: Find a RentalCal property
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • get_propertyThe full listing for a property id: description, location, check-in and check-out times, capacity, pets, amenities, house rules, photos, nightly pricing and fees, cancellation poli…No findings

    Why it is in this group

    • The name "get_property" says "get": a word for reading.
    Description, as the server wrote it
    The full listing for a property id: description, location, check-in and check-out times, capacity, pets, amenities, house rules, photos, nightly pricing and fees, cancellation policy, payment schedule, damage deposit, and the host's FAQ. Amounts are integer cents in the property's currency.

    Annotations the server declares

    • title: Get property details
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
  • get_quoteThe exact price of a stay: nightly rates, discounts, cleaning and other fees, taxes and total, in integer cents, plus any refundable damage deposit the host requires and whether it…No findings

    Why it is in this group

    • The name "get_quote" says "get": a word for reading.
    Description, as the server wrote it
    The exact price of a stay: nightly rates, discounts, cleaning and other fees, taxes and total, in integer cents, plus any refundable damage deposit the host requires and whether it is held at booking. Returns a bookingUrl that opens the host's booking page with these dates and guests filled in, where the traveller completes the booking. If the stay is not allowed (dates taken, below the minimum stay, too many guests) the reason is returned instead.

    Annotations the server declares

    • title: Price a stay
    • 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 1.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http rentalcal https://api.rentalcal.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__rentalcal__find_property",
      "mcp__rentalcal__get_property",
      "mcp__rentalcal__get_quote"
    ],
    "ask": [
      "mcp__rentalcal__check_availability"
    ],
    "deny": []
  }
}

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 rentalcal. Review it before you use it.