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Inbox eSIM MCP Server

by inboxesim Your server? Claim it
answering

Inbox eSIM is answering right now. Last checked 10 min ago. It exposes 5 tools.

Travel eSIMs for 200+ countries: find plans with USD prices and buy one, paid by MPP (Stripe).

Uptime history 5 days of history
5 days agonow
100.0%
Uptime 24h
91 of 91 checks
5
Tools
read from the server
398 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 2

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 30 October 2026. No other catalogue keeps this.

30 Oct 2 tool descriptions were rewritten buy_esim, make_esim_cart

Nothing serious here today

Today is the operative word: we check Inbox eSIM every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 10 min ago.

run in your terminal
claude mcp add esim --transport http https://inboxesim.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://inboxesim.com/mcp
~/.codex/config.toml
[mcp_servers.esim]
url = "https://inboxesim.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "esim": {
      "url": "https://inboxesim.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "esim": {
      "type": "http",
      "url": "https://inboxesim.com/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

esim
check_esim_device
Says whether a phone model is likely to take an eSIM (likely, unlikely or check), from the model name, with how to be sure on the phone itself. Call it before buy_esim when the customer is unsure.
find_esim_plans
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.
buy
buy_esim
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 (no card fee within 14 days in the EU and UK).
make
make_esim_cart
For a trip to several countries (or several phones): turns 2 to 6 plan_ids from find_esim_plans into one cart link. The customer opens it, checks the eSIMs and pays once on Stripe; each eSIM comes in its own QR email and can be refunded on its own if never installed. 3 or more eSIMs in one cart are 5% off. Nothing is bought until the customer pays on the page.
order
get_order_status
Where an Inbox eSIM order is (awaiting_payment, preparing, ready_to_install, installed, in_use, ended, refunded, cancelled, with_support), with data used, the end date and the order page. Needs the order number and the email it was bought with.

Endpoints

URLTransportStateLatencyChecked
https://inboxesim.com/mcp streamable-http answering 354 ms 10 min ago

Alternatives to Inbox eSIM

same job, measured the same way
Siima eSIM
by siima

Search travel eSIM plans for 150+ countries and buy via Stripe link; eSIM QR delivered by email.

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Cypher eSIM
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Buy no-KYC travel eSIMs and eSIMs with a real phone number in 180+ countries, paid in crypto.

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eSIM Tabby
by esimtabby

Buy and manage travel eSIM data plans in the conversation. Pay by card (Stripe) or USDC over x402.

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Worldcitisim eSIM
by worldcitisim

Travel eSIMs for 193 countries. Stripe + Bitcoin checkout. QR by email in 30s. No API key.

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ALT eSIM
by altesim

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

7 tools answering
T
Toolaby
by toolaby

Paid plans, licences, subscriptions and the paywall for Chrome extensions, on your own Stripe.

591 installs/wk local only
iEscrow
by iescrow

Buy products and services with escrow, or trade crypto P2P. Money moves only with human 2FA.

answering
PikaSim
by pikasim

Anonymous eSIMs, phone numbers, and SMS codes in 190+ countries. Crypto-paid; agents self-onboard.

31 tools answering

Inbox eSIM — questions

Answers built from our own checks of this server.

What can Inbox eSIM do?
It exposes 5 tools, read directly from the server on our last check. Among them: buy_esim, check_esim_device, find_esim_plans, get_order_status, make_esim_cart. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Inbox eSIM working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 398 ms. The bar chart above shows every period we have measured.
How do I connect Inbox eSIM?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Inbox eSIM need an API key?
No. Inbox eSIM completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Inbox eSIM?
It answers our handshake in 398 ms on average, which is faster than 33% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.