ALT eSIM
Search & buy travel data eSIMs for 70+ destinations — pay by Stripe link, get the eSIM QR. USD.
Should I use this
Quality & Safety
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"esim": {
"url": "https://altesim.com/api/mcp"
}
}
}Remote endpoints
https://altesim.com/api/mcpstreamable-httpWhat it can do
Tool inventory
Tools (5)
🟢search_esim_plans(country, region, max_price_usd)
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.
Input Schema
{
"type": "object",
"properties": {
"country": {
"type": "string",
"description": "Destination country/region slug, e.g. 'japan', 'south-korea', 'thailand', 'usa', 'europe'. Omit to list all."
},
"region": {
"type": "string",
"enum": [
"asia",
"europe",
"americas",
"oceania",
"africa",
"middle-east"
],
"description": "Optional region filter."
},
"max_price_usd": {
"type": "number",
"description": "Optional max price in USD."
}
}
}🟢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.
Input Schema
{
"type": "object",
"properties": {}
}🟢get_esim_plan(sku_or_id)
Get one Alt eSIM plan by its sku or id. Returns full details: title, data amount, validity days, USD price, coverage carriers, product URL.
Input Schema
{
"type": "object",
"properties": {
"sku_or_id": {
"type": "string",
"description": "The plan sku (e.g. 'eSIM_Alt_JP_1DG1') or id."
}
},
"required": [
"sku_or_id"
]
}🟡create_checkout(sku_or_id, email, lang, customer_code)
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.
Input Schema
{
"type": "object",
"properties": {
"sku_or_id": {
"type": "string",
"description": "The plan sku or id to buy."
},
"email": {
"type": "string",
"description": "Buyer's email — the eSIM QR code is also sent here."
},
"lang": {
"type": "string",
"enum": [
"en",
"zh-hk",
"zh-tw",
"zh-cn",
"id",
"hi",
"es",
"fr",
"nl",
"ru",
"uk",
"kk",
"uz",
"pl",
"cs",
"hu",
"ro",
"de",
"it",
"pt",
"tr",
"el",
"ar",
"ja",
"ko",
"th",
"vi",
"ms",
"tl",
"bn",
"sv",
"da",
"nb",
"fi",
"bg",
"hr",
"sk",
"sl",
"sr",
"lt",
"lv",
"et"
],
"description": "Delivery email language (default 'en')."
},
"customer_code": {
"type": "string",
"description": "Optional Alt customer code (format Alt-XXXXXXXX, shown on the buyer's altesim.com account page). If provided, the order is linked to that account and appears in its order history regardless of the delivery email used."
}
},
"required": [
"sku_or_id",
"email"
]
}🔴get_qr_code(checkout_session_id)
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.
Input Schema
{
"type": "object",
"properties": {
"checkout_session_id": {
"type": "string",
"description": "The checkout_session_id from create_checkout (Stripe session id)."
}
},
"required": [
"checkout_session_id"
]
}Community
Evidence