Bloomy eSIM

by bloomyesim.com · remote · no sign-in to list tools · v1.2.0 · published by com.bloomyesim

Recommend the right travel eSIM for any trip (200+ countries) and hand the traveler a checkout link.

Changes · 3

Compare Registry entry

7 tools: 3 change things and 4 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things3Claude Code: ask: see these tools
Only reads4Claude Code: allow: see these tools

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 https://bloomyesim.com/wp-json/bloomy/v1/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warnget_purchase_link
The server marks "get_purchase_link" 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 "get_purchase_link" says "get": a word for reading.
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.

7 tools

Changes things 3Creates or changes something that can be changed back.Claude Code: ask

estimate_dataSame formula as bloomyesim.com/data-calculator: daily MB per activity x days x Wi-Fi factor x 1.15 safety buffer, rounded up.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
Same formula as bloomyesim.com/data-calculator: daily MB per activity x days x Wi-Fi factor x 1.15 safety buffer, rounded up.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- destructiveHint: false
- openWorldHint: false
- title: Estimate data needed
get_purchase_linkLink straight to the final confirmation screen for this plan.1 finding
Why it is in this group
- The name "get_purchase_link" says "get": a word for reading.
- The description's first verb is "link": 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 "get_purchase_link" 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 "get_purchase_link" says "get": a word for reading.
  What this check looks for
Description, as the server wrote it
Link straight to the final confirmation screen for this plan. The traveler pays there themselves; this tool never takes payment. The QR code is emailed and shown in My Page right after payment.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- destructiveHint: false
- openWorldHint: false
- title: Get checkout link
recommend_planTakes the destination (or all destinations of a multi-country trip) and trip length, plus how the traveler uses data if known.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
Takes the destination (or all destinations of a multi-country trip) and trip length, plus how the traveler uses data if known. Returns up to 3 options with a reason each: best_fit (cheapest that covers the estimated need), budget (cheaper, below the estimate) and roomier (next size up), each with a link straight to checkout confirmation. Accepts every country of a multi-country trip in destinations, with the total days.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- destructiveHint: false
- openWorldHint: false
- title: Recommend a plan

Only reads 4Looks things up and changes nothing.Claude Code: allow

get_planDetails of one plan: data, validity, network, 5G, top-up, carriers, price and checkout link.No findings
Why it is in this group
- The name "get_plan" says "get": a word for reading.
Description, as the server wrote it
Details of one plan: data, validity, network, 5G, top-up, carriers, price and checkout link.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- destructiveHint: false
- openWorldHint: false
- title: Get plan details
get_setup_guideShort, accurate setup steps (iPhone or Android), what to check before buying, and links to the full guide, the device checker and troubleshooting.No findings
Why it is in this group
- The name "get_setup_guide" says "get": a word for reading.
Description, as the server wrote it
Short, accurate setup steps (iPhone or Android), what to check before buying, and links to the full guide, the device checker and troubleshooting.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- destructiveHint: false
- openWorldHint: false
- title: Get setup guide
list_destinationsCountries with a dedicated plan, with ISO code, localized name, number of plans and the lowest price.No findings
Why it is in this group
- The name "list_destinations" says "list": a word for reading.
Description, as the server wrote it
Countries with a dedicated plan, with ISO code, localized name, number of plans and the lowest price. Filterable with query.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- destructiveHint: false
- openWorldHint: false
- title: List destinations
search_plansList plans for a destination, cheapest first, single-country plans before multi-country ones.No findings
Why it is in this group
- The name "search_plans" says "search": a word for reading.
Description, as the server wrote it
List plans for a destination, cheapest first, single-country plans before multi-country ones. Filter by trip length, minimum GB, and plan type.
Annotations the server declares
- readOnlyHint: true
- idempotentHint: true
- destructiveHint: false
- openWorldHint: false
- title: Search plans

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.

Looked at Oct 22, 2026, 14:28 UTC, unchanged since Oct 22, 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: 3
Protocol version: 2025-06-18
WWW-Authenticate on 401: not observed
resource_metadata in WWW-Authenticate: none
RFC 9728 protected resource metadata: none
Authorization servers: none
Legacy HTTP+SSE transport: no
Dynamic client registration: not observed
Client ID metadata documents: not observed

WarnThe whole server
The endpoint served tools/list without credentials, and the list has 3 tools that change things (3 write). Whether a call also works without credentials was not tested: tools are never called.
Matched text
https://bloomyesim.com/wp-json/bloomy/v1/mcp: tools/list returned 7 tools to an anonymous client, including recommend_plan (write), estimate_data (write), get_purchase_link (write)
What this check looks for

Install

Pinned to version 1.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http esim https://bloomyesim.com/wp-json/bloomy/v1/mcp

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__esim__search_plans",
      "mcp__esim__list_destinations",
      "mcp__esim__get_plan",
      "mcp__esim__get_setup_guide"
    ],
    "ask": [
      "mcp__esim__recommend_plan",
      "mcp__esim__estimate_data",
      "mcp__esim__get_purchase_link"
    ],
    "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 esim. Review it before you use it.

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.bloomyesim/esim/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Anlyon alternative

3 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.

Import an OpenAPI spec →

Compare with other servers for the same product.

Source: MCP Registry. Synced Oct 21, 2026, 17:52 UTC.

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