mcpbeat

ALT eSIM MCP Server

com.altesim/esim
answering

ALT eSIM is answering right now. Last checked 14 min ago. It exposes 5 tools.

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

Uptime history 41 hours of history
41 hours agonow
100.0%
Uptime 24h
91 of 91 checks
5
Tools
read from the server
729 ms
Response time
average over 24h
open, no key
Access
streamable-http

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 14 min ago.

run in your terminal
claude mcp add esim --transport http https://altesim.com/api/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "esim": {
      "url": "https://altesim.com/api/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.esim]
url = "https://altesim.com/api/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "esim": {
      "url": "https://altesim.com/api/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "esim": {
      "url": "https://altesim.com/api/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
get_esim_plan
Get one ALT eSIM plan by its sku or id. Returns full details: title, data amount, validity days, USD price, coverage carriers, product URL.
search_esim_plans
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.
checkout
create_checkout
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.
code
get_qr_code
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), '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.
destinations
list_destinations
List all ALT eSIM destinations (country/region slugs with English names and region). Use a slug as the 'country' argument for search_esim_plans.

Endpoints

URLTransportStateLatencyChecked
https://altesim.com/api/mcp streamable-http answering 461 ms 14 min ago

ALT eSIM — questions

Answers built from our own checks of this server.

What can ALT eSIM do?
It exposes 5 tools, read directly from the server on our last check. Among them: create_checkout, get_esim_plan, get_qr_code, list_destinations, search_esim_plans. 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 ALT 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 729 ms. The bar chart above shows every period we have measured.
How do I connect ALT eSIM?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does ALT eSIM need an API key?
No. ALT 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 ALT eSIM?
It answers our handshake in 729 ms on average, which is faster than 11% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.