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GLOBALCELL eSIM

dev.globalcell/mcpglobalcell.devstreamable-httpv2.1.0Scanned

Travel eSIMs for 130+ countries: plan a trip, compare plans, buy, install and diagnose.

12 tools: 8 change things and 4 only read.

Tools: 0 delete, 0 irreversible, 8 write, 4 read.
  • Reads private data · 0
  • Reads text others write · 0
  • Can send data out · 0
  • 1 finding

Tools listed without sign-in. Remote posture

Anlyon alternative

8 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

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Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

12 tools

Changes things 8Claude Code: ask
  • check_deviceWhether a phone, tablet or watch model supports eSIM, from a list of known models, with how to check on the device itself.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
    Whether a phone, tablet or watch model supports eSIM, from a list of known models, with how to check on the device itself.

    Annotations the server declares

    • title: Check a phone for eSIM
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
  • check_orderOrder status.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
    Order status. Once "fulfilled", a new eSIM includes its install links, QR code link and manual codes.

    Annotations the server declares

    • title: Check order
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
  • check_usageData used and left on the eSIM of a fulfilled order, per package, with start and expiry dates.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
    Data used and left on the eSIM of a fulfilled order, per package, with start and expiry dates.

    Annotations the server declares

    • title: Check data left
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
  • country_networksThe mobile networks GLOBALCELL eSIMs use in a country, how many plans work there and the lowest price.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
    The mobile networks GLOBALCELL eSIMs use in a country, how many plans work there and the lowest price.

    Annotations the server declares

    • title: Networks in a country
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
  • create_orderCreates an order and returns checkoutUrl, the page where the user pays.No findings

    Why it is in this group

    • The name "create_order" says "create": a word for a change.
    Description, as the server wrote it
    Creates an order and returns checkoutUrl, the page where the user pays. Nothing is charged by this call. Confirm the plan, activation and total with the user first. Returns orderId and orderToken for check_order.

    Annotations the server declares

    • title: Create order
    • readOnlyHint: false
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: false
  • diagnose_esimWhy an eSIM may not work: line state, every package (started, data left, expired) and the last mobile network the phone registered on, with the likely cause and the fix.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
    Why an eSIM may not work: line state, every package (started, data left, expired) and the last mobile network the phone registered on, with the likely cause and the fix. For the eSIM of a fulfilled order.

    Annotations the server declares

    • title: Diagnose an eSIM
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
  • install_helpStep-by-step eSIM installation and first-use help for iPhone or Android, and fixes for common problems.1 finding

    Why it is in this group

    • The name "install_help" says "install": 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 "install_help" 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":false}; The name "install_help" says "install": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Step-by-step eSIM installation and first-use help for iPhone or Android, and fixes for common problems.

    Annotations the server declares

    • title: Install help
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
  • recommend_plansPlans for a trip to one or more countries: estimates the data needed from the days and how the user uses their phone, then suggests the best-value plans that cover every country fo…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
    Plans for a trip to one or more countries: estimates the data needed from the days and how the user uses their phone, then suggests the best-value plans that cover every country for the whole trip.

    Annotations the server declares

    • title: Recommend plans for a trip
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
Only reads 4Show 4 read-only tools
  • compare_plansSide-by-side comparison of 2 to 5 plans: data, days, price per GB and per day, countries and hotspot.No findings

    Why it is in this group

    • The name "compare_plans" says "compare": a word for reading.
    Description, as the server wrote it
    Side-by-side comparison of 2 to 5 plans: data, days, price per GB and per day, countries and hotspot.

    Annotations the server declares

    • title: Compare plans
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
  • get_planOne plan with prices and every country and mobile network it covers.No findings

    Why it is in this group

    • The name "get_plan" says "get": a word for reading.
    Description, as the server wrote it
    One plan with prices and every country and mobile network it covers.

    Annotations the server declares

    • title: Get plan
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
  • list_plansPlans that work in a country or region, cheapest first, with optional filters for data, days and price.No findings

    Why it is in this group

    • The name "list_plans" says "list": a word for reading.
    Description, as the server wrote it
    Plans that work in a country or region, cheapest first, with optional filters for data, days and price.

    Annotations the server declares

    • title: List plans
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true
  • search_destinationsCountries and regions with eSIM plans, with the lowest price per currency.No findings

    Why it is in this group

    • The name "search_destinations" says "search": a word for reading.
    Description, as the server wrote it
    Countries and regions with eSIM plans, with the lowest price per currency. Leave query empty to list all.

    Annotations the server declares

    • title: Search destinations
    • readOnlyHint: true
    • destructiveHint: false
    • openWorldHint: false
    • idempotentHint: true

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.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or untrusted-input or outbound.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Tools listed without sign-in

Looked at Nov 4, 2026, 02:19 UTC, unchanged since Nov 4, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable
yes
HTTP status of an anonymous initialize
200
tools/list served without credentials
yes
Tools that change things, listed without credentials
8
Protocol version
2025-06-18
WWW-Authenticate on 401
not observed
resource_metadata in WWW-Authenticate
not observed
RFC 9728 protected resource metadata
https://mcp.globalcell.dev/.well-known/oauth-protected-resource
Authorization servers
https://mcp.globalcell.dev
Legacy HTTP+SSE transport
no
Dynamic client registration
yes
Client ID metadata documents
no
  • WarnThe whole server

    The endpoint served tools/list without credentials, and the list has 8 tools that change things (8 write). Whether a call also works without credentials was not tested: tools are never called.

    Matched text

    https://mcp.globalcell.dev: tools/list returned 12 tools to an anonymous client, including recommend_plans (write), country_networks (write), check_device (write), create_order (write), check_order (write) and 3 more

    What this check looks for

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • Warninstall_help

    The server marks "install_help" 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":false}; The name "install_help" says "install": a word for a change.

    What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 2.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http globalcell https://mcp.globalcell.dev
claude mcp add --transport http globalcell https://mcp.globalcell.dev

Run in a terminal.

Claude Code permissions

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

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__globalcell__search_destinations",
      "mcp__globalcell__list_plans",
      "mcp__globalcell__get_plan",
      "mcp__globalcell__compare_plans"
    ],
    "ask": [
      "mcp__globalcell__recommend_plans",
      "mcp__globalcell__country_networks",
      "mcp__globalcell__check_device",
      "mcp__globalcell__create_order",
      "mcp__globalcell__check_order",
      "mcp__globalcell__check_usage",
      "mcp__globalcell__diagnose_esim",
      "mcp__globalcell__install_help"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as globalcell. Review it before you use it.

Pin

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/dev.globalcell/mcp/verify?hash=c2a8af2be934e3dcaf85335070c85cb7b8f5e5f360cf1ffaaf65dfee68e8ef39" | jq -e '.changed == false'

Pinned hash c2a8af2be934, from Nov 4, 2026, 01:18 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/dev.globalcell/mcp/changes.xml

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Badge

anlyon.dev badge for dev.globalcell/mcp
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Source: MCP Registry. Synced Nov 4, 2026, 01:17 UTC.