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Is Cypher eSIM reliable?

Being measured Measurement in progress: 2 check(s) so far. A verdict needs at least 3 checks.

Last check: 2026-10-24 01:55 UTC · answered in 8353 ms · remote (no install)

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ALT eSIM Reliable (measured) · 100%
Search & buy travel data eSIMs for 70+ destinations — pay by Stripe link, get the eSIM QR. USD. · https://altesim.com/api/mcp

x402card: Virtual Cards + Freeland eSIM Reliable (measured) · 100%
Issue and top up x402 virtual cards or buy Freeland travel eSIMs with Base USDC. · https://api.x402card.org/mcp

Picked from Faceabot's live measurements. Or let Faceabot choose: GET https://faceabot.com/resolve?need=…

En français : Mesure en cours. Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

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

Source: official MCP registry (registry.modelcontextprotocol.io) · version 1.0.0 · publisher website
Connect your agent
{
  "mcpServers": {
    "esim": {
      "url": "https://cypheresim.com/mcp"
    }
  }
}
Or ask Faceabot first: MCP tool check_reliability {"id":"com.cypheresim/esim"} on https://faceabot.com/api/mcp.
Does it actually do the job?

Real task being tested — Faceabot asked search_destinations to do a small read-only task 2 time(s): 2 returned a real result, the last 2 in a row. Last result: ok in 2947 ms.

Sample input: {}. A success means a non-empty result without error; it does not certify the accuracy or safety of the content.
Faceabot measurements
WhenAnswersReal taskLatency
2026-10-24 01:55 UTC✅ ok✅ done8353 ms
2026-10-23 15:03 UTC✅ ok✅ done11240 ms
Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

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Publisher of Cypher eSIM?

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Data in JSON: /api/catalog?id=com.cypheresim/esim · Stop probes: POST /api/reliability/opt-out

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