Inbox eSIM
com.inboxesim/esiminboxesim.comstreamable-httpv1.0.0Scanned
Travel eSIMs for 200+ countries: find plans with USD prices and buy one, paid by MPP (Stripe).
2 tools: 1 change things and 1 only read.
- Reads private data · 1
- Reads text others write · 2
- Can send data out · 0
- No findings
Anlyon alternative
1 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 →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.
2 tools
Changes things 1Claude Code: ask
buy_esimStarts the purchase of one eSIM plan for the customer and returns a payment link.Reads text others writeNo findings
Why it is in this group
- The description's first verb is "start": a word for a change.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it Starts the purchase of one eSIM plan for the customer and returns a payment link. Pay it with the Machine Payments Protocol (HTTP 402, Stripe shared payment token) to complete the order. Before calling, confirm the plan, the price and the email with the customer, and get their agreement to the terms: By buying, the customer asks for the eSIM to be sent at once and accepts the terms (https://inboxesim.com/terms): the 14-day right to withdraw ends once the eSIM is installed. An eSIM that was never installed or used can be refunded within 30 days from its order page, less the payment fee (in full within 14 days in the EU and UK).
Annotations the server declares
- readOnlyHint: false
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
Only reads 1Show 1 read-only tool
find_esim_plansLists Inbox eSIM data plans for a destination (country, city, region such as Europe, or 'global'), cheapest first, with plan_id, data in GB, validity in days and price in USD.Reads private dataReads text others writeNo findings
Why it is in this group
- The name "find_esim_plans" says "find": a word for reading.
What it can reach
- private-dataThe description's first sentence says "list" and "inbox": it reads mail.
- untrusted-inputThe description's first sentence says "list" and "inbox": it reads inbound email, which other people can write.
Description, as the server wrote it Lists Inbox eSIM data plans for a destination (country, city, region such as Europe, or 'global'), cheapest first, with plan_id, data in GB, validity in days and price in USD. Data only, no phone number; works on unlocked eSIM phones.
Annotations the server declares
- readOnlyHint: 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.
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 outbound.
- Reads private data1
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write2
- 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.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
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.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http esim https://inboxesim.com/mcpclaude mcp add --transport http esim https://inboxesim.com/mcpRun 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.
{
"permissions": {
"allow": [
"mcp__esim__find_esim_plans"
],
"ask": [
"mcp__esim__buy_esim"
],
"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.
Capability tags behind 2 rules
- mcp__esim__find_esim_plans private-data, untrusted-input
- mcp__esim__buy_esim untrusted-input
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/com.inboxesim/esim/verify?hash=1a9bd3c069a89abbb036a87d19fd6645b184282694a90cd2ed01f90367127738" | jq -e '.changed == false'Pinned hash 1a9bd3c069a8, from Oct 28, 2026, 04:17 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/com.inboxesim/esim/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/com.inboxesim/esim)Source: MCP Registry. Synced Oct 28, 2026, 04:17 UTC.