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FinancialMCP serverFirst audited Nov 13, 2026

Cypher eSIM

Buy no-KYC travel eSIMs and eSIMs with a real phone number in 180+ countries, paid in crypto.The vendor's description, from its MCP Registry listing.

Passed public checksAudited Nov 13, 2026

Every public check ran and passed. Public audit: we connect as an AI client would, list the tools and check what they say. We do not run them. How we audit

Does it work?
YesConnected in 412 ms.
Sign-up?
None neededIt answered without any account or key.
Can it change things?
YesSome tools say they can change things. Your AI client should ask you first.
Endpointhttps://cypheresim.com/mcp

Website Streamable HTTP · protocol 2025-11-25 · server version 1.0.0

What we checked, the evidence, and the tools it offers.

What we checked

Security

  • Passed: Connections are encrypted (HTTPS).

  • Passed: No hidden instructions found in tool text.

Safety labels

  • Note: 3 tools are labelled as able to change things.

    Expected for tools that send, write or buy. Your AI client should ask before calling them.

    • create_order
    • cancel_order
    • create_topup
  • Passed: Every tool says whether it only reads or can change things.

Tools

  • Passed: 9 tools listed.

  • Passed: Every tool describes its inputs with a valid schema.

Protocol

  • Passed: The MCP handshake works (Streamable HTTP).

  • Passed: Protocol version 2025-11-25 (latest).

  • Passed: Unknown requests are refused.

Connection

  • Passed: The server responds.

Tools (9)

As the server describes them. The labels are the server's own: it says whether each tool only reads or can change things.

  • search_destinationsFind 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,…Read-only
  • list_plansList 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…Read-only
  • get_planFull 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.Read-only
  • list_payment_coinsCoins and networks accepted for payment. Pass coin and network to create_order. Sending on a different network loses the funds.Read-only
  • create_orderCreate 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…Can change things
  • get_orderOrder 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…Read-only
  • cancel_orderCancel an unpaid order the person decided not to pay. Do not cancel after the payment was sent.Can change things
  • list_topupsCheck whether an installed Cypher eSIM can be topped up and list the plans that can be added to it.Read-only
  • create_topupCreate 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_orde…Can change things

Audit history

  1. Nov 13Passed

What we sent

Every request in this audit, with the answer and how long it took. We never send credentials and never call a tool.

RequestAnswerTime
initializeHTTP 200412 ms
initializedHTTP 202317 ms
tools/listHTTP 200114 ms
unknown-methodHTTP 200110 ms

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