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esimker eSIM store MCP Server

answering

esimker eSIM store is answering right now. Last checked 5 min ago. It exposes 12 tools.

Prepaid travel data eSIMs: checkout links for people, autonomous purchases from a prepaid wallet.

Uptime history 14 days of history · worst day 99%
14 days agonow
100.0%
Uptime 24h
92 of 92 checks
12
Tools
read from the server
273 ms
Response time
average over 24h
open, no key
Access
streamable-http

What changed 1

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 15 September 2026. No other catalogue keeps this.

15 Sep a tool description was rewritten search_destinations

Nothing serious here today

Today is the operative word: we check esimker eSIM store 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 5 min ago.

run in your terminal
claude mcp add esim --transport http https://esimker.com/api/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "esim": {
      "url": "https://esimker.com/api/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.esim]
url = "https://esimker.com/api/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "esim": {
      "url": "https://esimker.com/api/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "esim": {
      "url": "https://esimker.com/api/mcp"
    }
  }
}

Available tools 12

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

deposit
create_deposit
Open a top-up of the wallet and get what is needed to pay it. Floors: $10 for a wallet's first deposit, $1 after that; cap $1000 per deposit. Crypto deposits earn a bonus (+2% from $25, +3% from $50, +5% from $100, capped at $25); every purchase returns 3% cashback. With payment_method "crypto" pass a currency from: BTC, ETH, TRX, USDTTRC, USDTETH, USDTBSC — the answer then carries `pay`: the address, the exact amount in the coin (network fee included) and expires_at (about 15 minutes; after that open a new deposit). Send exactly `pay.amount` to `pay.address` on `pay.network`, then poll get_deposit(token) until status is paid. checkout_url is the hosted pay page for a person; card deposits have only that. Needs the wallet code.
get_deposit
One deposit of the wallet by its token: status pending → paid (credited, bonus included) | underpaid (nothing credited yet, the rest can still arrive) | expired. Poll every ~30 s after sending; crypto needs the network's confirmations. Needs the wallet code.
wallet
create_wallet
Mint a prepaid wallet with no account behind it and get its secret ONCE: `code` (32 hex characters) and the same secret as a 12-word `phrase`. Save the code before doing anything else and send it as `Authorization: Bearer <code>` on every wallet call; there is no recovery and no identity to prove. The balance is spent on eSIMs (retail price, cashback on every purchase) and never paid back out. accept_terms must be true (https://esimker.com/terms). Then create_deposit to fund it. Rate-limited and geo-blocked like checkout.
get_wallet
The wallet behind the code: ref (a public handle for support), balance_usd, cashback_percent, the deposit rules that apply to it now (min_usd, max_usd, first, bonus tiers), the last 50 transactions, orders (with their tokens — the wallet is where a buyer's order links are kept) and deposits. Needs the wallet code.
checkout
create_checkout
Create an order for a person to pay. Returns token, checkout_url (the gateway's page: hand it to the person) and order_url (the order page in `lang`, with the QR code once paid: show it to the buyer only, the token is a secret). Confirm the plan and the price first: every call creates a new unpaid order, so do not retry while a checkout is open. `email` (optional) also gets the eSIM by mail. `period_num` (1–365) only for daily_unlimited plans. `topup_iccid` with a plan_id from list_topups tops up an existing eSIM. A 403 means the caller's jurisdiction is embargoed. To pay from a wallet use purchase_esim.
destinations
search_destinations
Destinations on sale. `query` matches the name in any of 18 languages, the slug or the ISO code; empty lists everything. Each item: dest_code, slug, name, min_retail (USD, the cheapest fixed plan), unlimited_from (USD per day of a Daily Unlimited pass, or null), plan_count. Continue with get_plans(slug).
order
get_order
An order by its token. status goes pending (unpaid) → paid → provisioning → ready; also expired, underpaid, failed_provisioning, gift_waiting. When ready, esim.activation_code is the LPA string (render it as a QR code), with iccid, smdp and matching_id. After payment poll every ~10 s; delivery usually takes under a minute.
payment
get_payment_methods
Checkout methods open right now: "crypto" (a hosted invoice: BTC, ETH, TRX, USDT), "card", and "wallet" (a prepaid balance, see create_wallet). `gateways` names the providers behind each method; a checkout that does not ask for one by name goes to the first, which is what these tools do.
plans
get_plans
The plans of one destination (slug from search_destinations). Each plan: id (the plan_id for an order), name, gb, days, retail (USD; per day when daily_unlimited is true), daily_unlimited, location_codes (the countries it covers), networks, speed, supports_topup. Also the published rating.
purchase
purchase_esim
Charge the wallet and issue an eSIM, no checkout. `client_ref` (1–64 chars) is your own reference for this purchase and makes the call idempotent: a retry with the same value returns the existing order without a second charge, so reuse it after a timeout and never invent a new one for the same purchase. `period_num` (1–365, default 7) only for daily_unlimited plans; the charge is price × days. `topup_iccid` with a plan_id from list_topups tops up an eSIM. Returns the order (status paid) with order_url; poll get_order(token) for ready and the activation code. A 402 is a short balance: create_deposit first. A wallet pays for at most 50 orders in 24 hours (429 beyond that; a retry answered from client_ref does not count). Needs the wallet code.
topups
list_topups
Top-up plans that fit an eSIM we issued: plan_id, name, gb, days, retail. Order one with create_checkout(plan_id, topup_iccid=iccid) or, from a wallet, purchase_esim(plan_id, client_ref, topup_iccid=iccid).
usage
get_usage
Remaining data and status of an eSIM we issued.

Endpoints

URLTransportStateLatencyChecked
https://esimker.com/api/mcp streamable-http answering 281 ms 5 min ago

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esimker eSIM store — questions

Answers built from our own checks of this server.

What can esimker eSIM store do?
It exposes 12 tools, read directly from the server on our last check. Among them: create_checkout, create_deposit, create_wallet, get_deposit, get_order, get_payment_methods and 6 more. 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 →
What is esimker eSIM store mostly used for?
Its tools cluster around deposit and wallet. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is esimker eSIM store working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 273 ms. The bar chart above shows every period we have measured.
How do I connect esimker eSIM store?
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 esimker eSIM store need an API key?
No. esimker eSIM store completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 12 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is esimker eSIM store?
It answers our handshake in 273 ms on average, which is faster than 54% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.