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ALT eSIM

by altesim.com · remote · no sign-in to list tools · v0.41.2 · published by com.altesim

Search & buy travel data eSIMs for 70+ destinations — pay by Stripe link, get the eSIM QR. USD.

Changes · 1
CompareRegistry entry

5 tools: 1 change things and 4 only read.

Scanned Oct 21, 2026

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

claude mcp add --transport http esim https://altesim.com/api/mcp

Tools

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

5 tools

Changes things 1Claude Code: ask
  • create_checkoutCreate a secure Stripe payment link for an Alt eSIM plan.No findings

    Why it is in this group

    • The name "create_checkout" says "create": a word for a change.
    Description, as the server wrote it
    Create a secure Stripe payment link for an Alt eSIM plan. Returns a payment URL the BUYER opens to pay (the agent never handles card details) AND a checkout_session_id. After the buyer pays, call get_qr_code with that checkout_session_id to fetch the eSIM QR and show it to the buyer. The QR is also emailed. Charged in USD. You MUST collect the buyer's real email.
Only reads 4Claude Code: allow
  • get_esim_planGet one Alt eSIM plan by its sku or id.No findings

    Why it is in this group

    • The name "get_esim_plan" says "get": a word for reading.
    Description, as the server wrote it
    Get one Alt eSIM plan by its sku or id. Returns full details: title, data amount, validity days, USD price, coverage carriers, product URL.
  • get_qr_codeFetch the eSIM QR code(s) for an order, to show the buyer directly.No findings

    Why it is in this group

    • The name "get_qr_code" says "get": a word for reading.
    Description, as the server wrote it
    Fetch the eSIM QR code(s) for an order, to show the buyer directly. Pass the checkout_session_id from create_checkout. Returns a clear `status`: 'awaiting_payment' (buyer has NOT paid — tell them to pay), 'processing' (paid, eSIM still provisioning — retry in ~30s), 'manual_review' (paid, activation paused for security review; ask buyer to contact support@altesim.com with the order reference), 'ready' (returns the QR image(s) + ICCID(s) to display), 'expired', 'refunded', or 'failed'. Use the status to tell the buyer exactly what's happening — never assume payment succeeded.
  • list_destinationsList all Alt eSIM destinations (country/region slugs with English names and region).No findings

    Why it is in this group

    • The name "list_destinations" says "list": a word for reading.
    Description, as the server wrote it
    List all Alt eSIM destinations (country/region slugs with English names and region). Use a slug as the 'country' argument for search_esim_plans.
  • search_esim_plansSearch Alt eSIM travel data plans.No findings

    Why it is in this group

    • The name "search_esim_plans" says "search": a word for reading.
    Description, as the server wrote it
    Search Alt eSIM travel data plans. Filter by destination country slug (e.g. 'japan', 'usa', 'europe'), region, and/or max USD price. Returns plans with sku, data amount, validity days, USD price and coverage carriers. All prices are USD.

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.

Install

Pinned to version 0.41.2. Values in angle brackets are yours to fill in.

claude mcp add --transport http esim https://altesim.com/api/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_esim_plans",
      "mcp__esim__list_destinations",
      "mcp__esim__get_esim_plan",
      "mcp__esim__get_qr_code"
    ],
    "ask": [
      "mcp__esim__create_checkout"
    ],
    "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.