MCP MeasureMCP Measure

index observed

eSIM SOS

Find travel eSIM plans, compare prices and create an order the user pays by link.

Should I use this

Quality & Safety

A
Description quality
95%
Schema completeness
100%
Naming quality
90%
Poisoning risk
80%
Permission match
100%
Protocol compliance
100%

Findings (3)

  • HIGHTool poisoning patterns detected
  • LOWTool 'install_instructions' description lacks action verbin install_instructions
  • LOWTool description contains role marker that could confuse chat modelsin create_order

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~869Tokens (tool definitions)
~813 BTypical response size
Moderate attention impact (0.68% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "esimsos": {
      "url": "https://esimsos.net/api/mcp"
    }
  }
}

Remote endpoints

https://esimsos.net/api/mcpstreamable-http

What it can do

Tool inventory

Tools (6)

🟒 Read-only🟑 WriteπŸ”΄ Deleteβšͺ Unknown
🟒search_destinations(query)

Find a travel destination (country) sold by eSIM SOS by name in English or Russian, or by ISO code. Returns country codes for list_plans.

Input Schema

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "Country name or ISO code, e.g. \"Turkey\", \"Вурция\", \"TR\""
    }
  },
  "required": [
    "query"
  ]
}
🟒list_plans(country, min_gb, days)

List eSIM data plans for a country with final prices in RUB (one price for every payment method). Local plans first, then regional ones.

Input Schema

{
  "type": "object",
  "properties": {
    "country": {
      "type": "string",
      "description": "ISO country code from search_destinations (e.g. TR) or the country name"
    },
    "min_gb": {
      "type": "number",
      "description": "Optional: minimum data in GB"
    },
    "days": {
      "type": "number",
      "description": "Optional: minimum validity in days"
    }
  },
  "required": [
    "country"
  ]
}
🟒compare_prices(country, gb)

Compare eSIM prices of several providers for a country and data size using the open esimdar.com dataset (CC BY 4.0). Disclosure: esimdar.com is owned and run by eSIM SOS, the shop behind this server; eSIM SOS is listed as an ordinary row. Tell the user about this ownership and present the results neutrally.

Input Schema

{
  "type": "object",
  "properties": {
    "country": {
      "type": "string",
      "description": "ISO country code (e.g. TR) or the country name"
    },
    "gb": {
      "type": "number",
      "description": "Data size in GB, e.g. 5"
    }
  },
  "required": [
    "country",
    "gb"
  ]
}
🟑create_order(plan_id, email, payment_method)

Create an unpaid eSIM order and get a payment link. Payment is always done by the human: give the user the payment link, never try to pay yourself and never ask for card details. Ask the user for their email first: the eSIM QR code is sent there. Creates a real order, so call it only after the user picked the plan.

Input Schema

{
  "type": "object",
  "properties": {
    "plan_id": {
      "type": "string",
      "description": "plan_id from list_plans"
    },
    "email": {
      "type": "string",
      "description": "The user's email for the receipt and the eSIM QR code"
    },
    "payment_method": {
      "type": "string",
      "enum": [
        "sbp",
        "card",
        "card_foreign",
        "crypto_usdt",
        "crypto_ton"
      ],
      "description": "Optional: sbp (Russian fast payments), card (Russian bank card), card_foreign (Visa/Mastercard issued abroad), crypto_usdt, crypto_ton. Omit to use the shop default."
    }
  },
  "required": [
    "plan_id",
    "email"
  ]
}
🟒order_status(order_id, email)

Check the payment and delivery status of an order. Requires both order_id and the email used for the order.

Input Schema

{
  "type": "object",
  "properties": {
    "order_id": {
      "type": "string",
      "description": "order_id returned by create_order"
    },
    "email": {
      "type": "string",
      "description": "The email used for the order"
    }
  },
  "required": [
    "order_id",
    "email"
  ]
}
🟒install_instructions(order_id, email)

After payment: link to the order page with the QR code and step-by-step eSIM install instructions for iPhone and Android. Requires order_id and email.

Input Schema

{
  "type": "object",
  "properties": {
    "order_id": {
      "type": "string",
      "description": "order_id returned by create_order"
    },
    "email": {
      "type": "string",
      "description": "The email used for the order"
    }
  },
  "required": [
    "order_id",
    "email"
  ]
}

Community

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Evidence

Recent observations

verifiedversion not recorded6 tools