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varioroam eSIM configurator

by varioroam.com · remote · no sign-in to list tools · v1.2.4 · published by com.varioroam

Build-your-own travel eSIM: live quotes by country, GB, days and networks, plus a buy link.

Changes · 5
CompareRegistry entry

8 tools: 5 change things 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 esim-catalog https://varioroam.com/wp-json/varioroam/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warnstart_checkout

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

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "start_checkout" says "start": a word for a change.

    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

Changes things 5Claude Code: ask
  • plan_tripA trip through several countries (max 5): one eSIM per country, each quoted with the same data pool and days unless given per country (gb omitted = sized for normal use from the da…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.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A trip through several countries (max 5): one eSIM per country, each quoted with the same data pool and days unless given per country (gb omitted = sized for normal use from the days). Returns one line per country with price and buy_url, plus the total. Use when the customer names two or more countries and a size (2–5 destinations); for one country call quote_esim; use recommend_config when they describe usage instead.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • price_gridPrices for several GB × days combinations of one country in one call (max 8 × 8), e.g.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.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Prices for several GB × days combinations of one country in one call (max 8 × 8), e.g. to compare with other providers or to find the best fit for a trip. Same server prices as quote_esim.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • quote_esimUse while the customer is still deciding — "how much is …?": the exact price of one eSIM configuration (country, data GB 1–100, days 1–90, networks), the server price the customer …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.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Use while the customer is still deciding — "how much is …?": the exact price of one eSIM configuration (country, data GB 1–100, days 1–90, networks), the server price the customer would pay. Quote it as returned, never compute or scale it yourself. The result carries a buy_url for reference; when the customer says they want to buy, call start_checkout instead.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • recommend_configUse when the customer describes a trip instead of a size: country (or up to 5), days and how they use data (usage light / normal / heavy, or gb_per_day).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.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Use when the customer describes a trip instead of a size: country (or up to 5), days and how they use data (usage light / normal / heavy, or gb_per_day). Sizes the data pool from the data guide and returns three server-quoted configurations per country — exact, comfortable (×1.5) and generous (×2) — each with its price, networks, a one-line reason and its buy_url, plus trip totals and an optional budget check. Prices are the same as quote_esim. Give destination (one country) or destinations (several) — one of the two is required; a call without a country fails with invalid_argument.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • start_checkoutUse only once the customer has decided to buy ("I'll take it", "how do I buy?"): the checkout handoff.1 finding

    Why it is in this group

    • The name "start_checkout" says "start": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

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

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The name "start_checkout" says "start": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Use only once the customer has decided to buy ("I'll take it", "how do I buy?"): the checkout handoff. Returns the buy_url to give the customer, the final price and a ready-to-send checkout block (next_step, payment_methods, delivery) — on the page they press "Get it" and pay securely. No account needed; the eSIM is delivered on screen and by e-mail right after payment. No in-chat order tracking, no discount codes. For prices while the customer is still comparing, use quote_esim.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
Only reads 3Claude Code: allow
  • get_networksThe mobile networks the customer can tick for one country (operator name, 4G/5G) with the price of a reference eSIM on each network alone (1 GB · 7 days), so you can say which netw…No findings

    Why it is in this group

    • The name "get_networks" says "get": a word for reading.
    Description, as the server wrote it
    The mobile networks the customer can tick for one country (operator name, 4G/5G) with the price of a reference eSIM on each network alone (1 GB · 7 days), so you can say which network is the cheapest and what the others add.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • get_shop_factsWhat varioroam is and how it works, in the shop’s own words: the configurable eSIM, ranges, delivery, payment, hotspot, activation, top-ups (add data or days), e-mails, support.No findings

    Why it is in this group

    • The name "get_shop_facts" says "get": a word for reading.
    Description, as the server wrote it
    What varioroam is and how it works, in the shop’s own words: the configurable eSIM, ranges, delivery, payment, hotspot, activation, top-ups (add data or days), e-mails, support. Use for any question that is not a price.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
  • list_destinationsEvery country varioroam can build an eSIM for, with the number of selectable networks and the starting price (1 GB, 1 day, cheapest network).No findings

    Why it is in this group

    • The name "list_destinations" says "list": a word for reading.
    Description, as the server wrote it
    Every country varioroam can build an eSIM for, with the number of selectable networks and the starting price (1 GB, 1 day, cheapest network). Use to check coverage or to compare many countries at once.

    Annotations the server declares

    • readOnlyHint: true
    • destructiveHint: false
    • idempotentHint: true
    • 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 1.2.4. Values in angle brackets are yours to fill in.

claude mcp add --transport http esim-catalog https://varioroam.com/wp-json/varioroam/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__esim-catalog__get_shop_facts",
      "mcp__esim-catalog__list_destinations",
      "mcp__esim-catalog__get_networks"
    ],
    "ask": [
      "mcp__esim-catalog__quote_esim",
      "mcp__esim-catalog__price_grid",
      "mcp__esim-catalog__recommend_config",
      "mcp__esim-catalog__plan_trip",
      "mcp__esim-catalog__start_checkout"
    ],
    "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 esim-catalog. Review it before you use it.