The Cypher eSIM MCP server,
connected in one click.
Buy no-KYC travel eSIMs and eSIMs with a real phone number in 180+ countries, paid in crypto. Connect the official Cypher 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 Cypher 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 cypher-esim https://cypheresim.com/mcpRun in your terminal, then restart Claude Code.
Cypher eSIM · https://cypheresim.com/mcp
What your AI can do with Cypher eSIM
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “search_destinations”: Find a country, region or "world" destination by name or ISO code. Returns destination codes for list_plans (country: ISO2 like "JP"; region.”
“Use “list_plans”: List purchasable plans for a destination, cheapest first. type "data" = data-only eSIM: validity starts on first connection at the destinati.”
“Use “get_plan”: Full details of one plan: all covered countries, data, days, phone number (if any), install rules, when validity starts, and notes. Read the.”
“Use “list_payment_coins”: Coins and networks accepted for payment. Pass coin and network to create_order. Sending on a different network loses the funds.”
How secure is the Cypher 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 Cypher eSIM holds up.
Official endpoint
Operated by Cypher eSIM (cypheresim.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 Cypher 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 Cypher eSIM
Choose Cypher eSIM in the gate directory. No sign-in needed.
Use it anywhere
Cypher 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 Cypher eSIM exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
search_destinations — Find a country, region or "world" destination by name or ISO code. Returns destination codes for list_plans (country: ISO2 like "JP"; region
list_plans — List purchasable plans for a destination, cheapest first. type "data" = data-only eSIM: validity starts on first connection at the destinati
get_plan — Full details of one plan: all covered countries, data, days, phone number (if any), install rules, when validity starts, and notes. Read the
list_payment_coins — Coins and networks accepted for payment. Pass coin and network to create_order. Sending on a different network loses the funds.
create_order — 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 n
get_order — Order status: pending (waiting for payment), paid (issuing), delivered, expired, failed. When delivered, returns for each eSIM: QR code (als
cancel_order — Cancel an unpaid order the person decided not to pay. Do not cancel after the payment was sent.
list_topups — Check whether an installed Cypher eSIM can be topped up and list the plans that can be added to it.
+ 1 more tools once connected
Who runs the Cypher eSIM MCP server?
The Cypher eSIM MCP server at a glance
https://cypheresim.com/mcpQuestions, answered
Is there an official Cypher eSIM MCP server?
Yes — Cypher eSIM operates its own remote MCP server at cypheresim.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 Cypher eSIM to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Cypher eSIM in the directory. No account or sign-in is needed. From then on, Cypher eSIM's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Cypher eSIM runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Cypher 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 Cypher eSIM in minutes. No credit card required.
Connect more than just Cypher eSIM
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Cypher eSIM in: Claude · Claude Code · ChatGPT · Cursor · VS Code