MCP server

Cypher eSIM Official

com.cypheresim/esim

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

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

Website

At a glance

Type

MCP server

Publisher

cypheresim.com (verified by the MCP Registry)

Status

Working at last check

Tools

9

Token cost

About 1,898 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http esim https://cypheresim.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.esim]
url = "https://cypheresim.com/mcp"

Gemini CLI

{"mcpServers":{"esim":{"httpUrl":"https://cypheresim.com/mcp"}}}

Cursor

{"mcpServers":{"esim":{"url":"https://cypheresim.com/mcp"}}}

VS Code

{"servers":{"esim":{"type":"http","url":"https://cypheresim.com/mcp"}}}

Antigravity

agy mcp add esim https://cypheresim.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"esim","server_url":"https://cypheresim.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"esim","server_url":"https://cypheresim.com/mcp"}

Tools

• cancel_order ~151 tokens
  Cancel an unpaid order the person decided not to pay. Do not cancel after the payment was sent.
• create_order Moves money · ~424 tokens
  Create a crypto invoice for one new eSIM. Before calling, confirm the plan with the person and tell them when validity starts and the plan notes (number plans: validity starts at installation; Europe number is French +33; UK number plan: install only after arrival). Returns order_id, order_token, th
• create_topup ~274 tokens
  Create a crypto invoice that adds a data plan to an existing eSIM (no new QR, nothing to install). plan_id must come from list_topups for this ICCID. Payment and polling work exactly like create_order.
• get_order ~196 tokens
  Order status: pending (waiting for payment), paid (issuing), delivered, expired, failed. When delivered, returns for each eSIM: QR code (also as an image), LPA activation code, ICCID, and one-tap iOS/Android install links. Call at most once every 5 seconds.
• get_plan ~134 tokens
  Full details of one plan: all covered countries, data, days, phone number (if any), install rules, when validity starts, and notes. Read the notes to the person before create_order.
• list_payment_coins ~79 tokens
  Coins and networks accepted for payment. Pass coin and network to create_order. Sending on a different network loses the funds.
• list_plans ~318 tokens
  List purchasable plans for a destination, cheapest first. type "data" = data-only eSIM: validity starts on first connection at the destination. type "number" = eSIM with a phone number, calls and SMS: validity starts at installation, so install it just before use; Europe plans give a French +33 numb
• list_topups ~124 tokens
  Check whether an installed Cypher eSIM can be topped up and list the plans that can be added to it.
• search_destinations ~198 tokens
  Find a country, region or "world" destination by name or ISO code. Returns destination codes for list_plans (country: ISO2 like "JP"; region: like "R-EUROPE"; world: "WORLD"), starting prices in USD, and how many data and phone-number plans exist. An empty query lists all destinations.

Browse

• SMS and text messages
• Payments
• Invoicing and accounting
• Mobile apps

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