The ALT eSIM MCP server,
connected in one click.
Search & buy travel data eSIMs for 70+ destinations — pay by Stripe link, get the eSIM QR. USD. Connect the official ALT eSIM MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add ALT eSIM to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http alt-esim https://altesim.com/api/mcpRun in your terminal, then restart Claude Code.
ALT eSIM · https://altesim.com/api/mcp
What your AI can do with ALT eSIM
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “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.”
“Use “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_pl.”
“Use “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.”
“Use “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.”
How secure is the ALT eSIM MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how ALT eSIM holds up.
Official endpoint
Operated by ALT eSIM (altesim.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If ALT eSIM adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick ALT eSIM
Choose ALT eSIM in the gate directory. No sign-in needed.
Use it anywhere
ALT eSIM's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools ALT eSIM exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
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
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_pl
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.
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
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 `stat
Who runs the ALT eSIM MCP server?
The ALT eSIM MCP server at a glance
https://altesim.com/api/mcpQuestions, answered
Is there an official ALT eSIM MCP server?
Yes — ALT eSIM operates its own remote MCP server at altesim.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect ALT eSIM to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick ALT eSIM in the directory. No account or sign-in is needed. From then on, ALT eSIM's tools are available in every client you've connected to gate.
Do I need to host anything?
No. ALT eSIM runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the ALT eSIM MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect ALT eSIM in minutes. No credit card required.
Connect more than just ALT eSIM
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up ALT eSIM in: Claude · Claude Code · ChatGPT · Cursor · VS Code