Koskamo

GLOBALCELL eSIM MCP

An official Model Context Protocol server by GLOBALCELL that enables AI assistants to search eSIM destinations, compare data plans, check device compatibility, create orders, and manage eSIM installations and diagnostics for travelers and partners.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

GLOBALCELL eSIM MCP logo, by GLOBALCELL EU EOODVendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-07Operated by GLOBALCELL EU EOOD
You need:Get a sandbox key
MCP endpoint (Streamable HTTP)
https://mcp.globalcell.dev
Vendor documentation

What its tools do

12 tools, grouped by the hints the server advertises. Hints are self-declared, not verified behavior.

Can change data (1)

12 of 12 have a description · 12 of 12 declare behavior hints · 4 of 12 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Passed Official MCP Registry namespace is tied to globalcell.dev ·
  • Passed Endpoint is on the registry namespace domain ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Search destinations and compare eSIM plans for travel
  • Check device compatibility for eSIM support
  • Create and manage eSIM orders via AI assistant
  • Diagnose eSIM connectivity issues and installation help

Source and maintenance

Vendor evidenceRegistry 2.1.0

Protocol and capabilities

Server
globalcell 2.1.0
MCP protocol negotiated in check
2025-11-25
Tools
12 advertised
Resources
4 advertised
Resource templates
0 advertised
Prompts
3 advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  },
  "prompts": {
    "listChanged": false
  },
  "resources": {
    "subscribe": false,
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

GLOBALCELL sells travel eSIMs and data packages for 180+ countries and 6 regions. Typical flow: recommend_plans (countries + days) or list_plans -> compare_plans / get_plan if useful -> check_device if the user is unsure their phone supports eSIM -> create_order without confirm (a preview with the price) -> once the user agrees, create_order again with confirm: true -> give the user checkoutUrl to pay (nothing is charged until they pay there; never pay for them) -> check_order with orderId and orderToken until status is "fulfilled" -> give the user orderPageUrl, where they install the eSIM with one tap or a QR code -> install_help or diagnose_esim for any trouble, check_usage to see data left. Prices are in minor units (cents) of EUR or USDT; never call them USD. A "package" order adds data to an eSIM the user already has (needs its ICCID); a "new_esim" order is a new eSIM with its first package. Activation: "now" (default) starts immediately; "on_arrival" starts on first use in a covered country (may cost extra); "scheduled" starts at a chosen date. Keep orderToken private: it is the only key to the order. Always confirm plan, activation and total before ordering. Partners who sign in (OAuth at /partner, or an API key) also get partner_* tools for their own catalog, prepaid balance, orders and eSIMs. Every partner tool that changes something returns a preview first; act only with confirm: true.

Tools

12 advertised

search_destinations — Search destinations
Advertised by the server during the last successful anonymous check.
Advertised read-only

Countries and regions with eSIM plans, with the lowest price per currency. Leave query empty to list all.

search_destinations input schema
{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "maxLength": 60,
      "description": "Part of a country or region name, or an ISO code"
    }
  },
  "additionalProperties": false
}
search_destinations annotations
{
  "title": "Search destinations",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
list_plans — List plans
Advertised by the server during the last successful anonymous check.
Advertised read-only

Plans that work in a country or region, cheapest first, with optional filters for data, days and price.

list_plans input schema
{
  "type": "object",
  "properties": {
    "limit": {
      "type": "integer",
      "maximum": 100,
      "minimum": 1,
      "description": "Default 30"
    },
    "region": {
      "type": "string",
      "maxLength": 60,
      "description": "Region name from search_destinations, e.g. \"Europe+\""
    },
    "country": {
      "type": "string",
      "maxLength": 60,
      "minLength": 2,
      "description": "ISO code like \"SK\" or a country name like \"Slovakia\""
    },
    "minDays": {
      "type": "integer",
      "maximum": 365,
      "minimum": 1
    },
    "purpose": {
      "enum": [
        "new_esim",
        "package"
      ],
      "type": "string",
      "description": "new_esim: a new eSIM. package: add data to an existing eSIM"
    },
    "currency": {
      "enum": [
        "EUR",
        "USDT"
      ],
      "type": "string",
      "description": "Show and sort prices in this currency (EUR or USDT)"
    },
    "minDataGB": {
      "type": "number",
      "maximum": 1000,
      "minimum": 0
    },
    "maxPriceMinor": {
      "type": "integer",
      "maximum": 9007199254740991,
      "description": "Upper price limit in minor units (cents) of the chosen currency",
      "exclusiveMinimum": 0
    }
  },
  "additionalProperties": false
}
list_plans annotations
{
  "title": "List plans",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
get_plan — Get plan
Advertised by the server during the last successful anonymous check.
Advertised read-only

One plan with prices and every country and mobile network it covers.

get_plan input schema
{
  "type": "object",
  "required": [
    "sku"
  ],
  "properties": {
    "sku": {
      "type": "string",
      "maxLength": 64
    }
  },
  "additionalProperties": false
}
get_plan annotations
{
  "title": "Get plan",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
recommend_plans — Recommend plans for a trip
Advertised by the server during the last successful anonymous check.
Advertised read-only

Plans for a trip to one or more countries: estimates the data needed from the days and how the user uses their phone, then suggests the best-value plans that cover every country for the whole trip.

recommend_plans input schema
{
  "type": "object",
  "required": [
    "countries",
    "days"
  ],
  "properties": {
    "days": {
      "type": "integer",
      "maximum": 365,
      "minimum": 1,
      "description": "Length of the trip in days"
    },
    "usage": {
      "enum": [
        "light",
        "normal",
        "heavy"
      ],
      "type": "string",
      "description": "light: maps, messaging, email, a little browsing; normal: plus social media, photos and some music; heavy: plus video, video calls or sharing data with a laptop. Default normal"
    },
    "dataGB": {
      "type": "number",
      "maximum": 1000,
      "minimum": 0.1,
      "description": "Data the user wants, if they know it; overrides usage"
    },
    "newEsim": {
      "type": "boolean",
      "description": "Default true. false: the user already has a GLOBALCELL eSIM"
    },
    "currency": {
      "enum": [
        "EUR",
        "USDT"
      ],
      "type": "string",
      "description": "Show and sort prices in this currency (EUR or USDT)"
    },
    "countries": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 60,
        "minLength": 2,
        "description": "ISO code like \"SK\" or a country name like \"Slovakia\""
      },
      "maxItems": 15,
      "minItems": 1,
      "description": "Every country the user will visit"
    }
  },
  "additionalProperties": false
}
recommend_plans annotations
{
  "title": "Recommend plans for a trip",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
compare_plans — Compare plans
Advertised by the server during the last successful anonymous check.
Advertised read-only

Side-by-side comparison of 2 to 5 plans: data, days, price per GB and per day, countries and hotspot.

compare_plans input schema
{
  "type": "object",
  "required": [
    "skus",
    "currency"
  ],
  "properties": {
    "skus": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 64
      },
      "maxItems": 5,
      "minItems": 2
    },
    "currency": {
      "enum": [
        "EUR",
        "USDT"
      ],
      "type": "string"
    }
  },
  "additionalProperties": false
}
compare_plans annotations
{
  "title": "Compare plans",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
country_networks — Networks in a country
Advertised by the server during the last successful anonymous check.
Advertised read-only

The mobile networks GLOBALCELL eSIMs use in a country, how many plans work there and the lowest price.

country_networks input schema
{
  "type": "object",
  "required": [
    "country"
  ],
  "properties": {
    "country": {
      "type": "string",
      "maxLength": 60,
      "minLength": 2,
      "description": "ISO code like \"SK\" or a country name like \"Slovakia\""
    }
  },
  "additionalProperties": false
}
country_networks annotations
{
  "title": "Networks in a country",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
check_device — Check a phone for eSIM
Advertised by the server during the last successful anonymous check.
Advertised read-only

Whether a phone, tablet or watch model supports eSIM, from a list of known models, with how to check on the device itself.

check_device input schema
{
  "type": "object",
  "required": [
    "model"
  ],
  "properties": {
    "model": {
      "type": "string",
      "maxLength": 80,
      "minLength": 2,
      "description": "e.g. \"iPhone 13\", \"Galaxy S23\", \"Pixel 8\""
    }
  },
  "additionalProperties": false
}
check_device annotations
{
  "title": "Check a phone for eSIM",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
create_order — Create order
Advertised by the server during the last successful anonymous check.
Advertised destructive

Creates an order and returns checkoutUrl, the page where the user pays; nothing is charged by this call. Without confirm: true it only returns a preview with the price and creates nothing. Returns orderId and orderToken for check_order.

create_order input schema
{
  "type": "object",
  "required": [
    "type",
    "sku",
    "currency"
  ],
  "properties": {
    "sku": {
      "type": "string",
      "maxLength": 64
    },
    "type": {
      "enum": [
        "new_esim",
        "package"
      ],
      "type": "string"
    },
    "iccid": {
      "type": "string",
      "pattern": "^[0-9]{18,22}$",
      "description": "Required for type \"package\": the ICCID of the eSIM to add data to"
    },
    "confirm": {
      "type": "boolean",
      "description": "Leave out first to get a preview; call again with true once the user agreed"
    },
    "currency": {
      "enum": [
        "EUR",
        "USDT"
      ],
      "type": "string",
      "description": "EUR or USDT"
    },
    "activation": {
      "oneOf": [
        {
          "type": "object",
          "required": [
            "mode"
          ],
          "properties": {
            "mode": {
              "type": "string",
              "const": "now"
            }
          },
          "additionalProperties": false
        },
        {
          "type": "object",
          "required": [
            "mode"
          ],
          "properties": {
            "mode": {
              "type": "string",
              "const": "on_arrival"
            }
          },
          "additionalProperties": false
        },
        {
          "type": "object",
          "required": [
            "mode",
            "startAt"
          ],
          "properties": {
            "mode": {
              "type": "string",
              "const": "scheduled"
            },
            "endAt": {
              "type": "string",
              "format": "date-time",
              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$"
            },
            "startAt": {
              "type": "string",
              "format": "date-time",
              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$"
            }
          },
          "additionalProperties": false
        }
      ],
      "description": "Default { \"mode\": \"now\" }"
    },
    "customerEmail": {
      "type": "string",
      "format": "email",
      "pattern": "^(?:[A-Za-z0-9_'+\\-]+\\.)*[A-Za-z0-9_'+\\-]*[A-Za-z0-9_+-]@(?:[A-Za-z0-9][A-Za-z0-9\\-]*\\.)+[A-Za-z]{2,}$",
      "maxLength": 254,
      "description": "Optional; for the receipt"
    }
  },
  "additionalProperties": false
}
create_order annotations
{
  "title": "Create order",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": false,
  "destructiveHint": true
}
check_order — Check order
Advertised by the server during the last successful anonymous check.
Advertised read-only

Order status. Once "fulfilled", a new eSIM includes its install links, QR code link and manual codes.

check_order input schema
{
  "type": "object",
  "required": [
    "orderId",
    "orderToken"
  ],
  "properties": {
    "orderId": {
      "type": "string",
      "maxLength": 64
    },
    "orderToken": {
      "type": "string",
      "maxLength": 64
    }
  },
  "additionalProperties": false
}
check_order annotations
{
  "title": "Check order",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
check_usage — Check data left
Advertised by the server during the last successful anonymous check.
Advertised read-only

Data used and left on the eSIM of a fulfilled order, per package, with start and expiry dates.

check_usage input schema
{
  "type": "object",
  "required": [
    "orderId",
    "orderToken"
  ],
  "properties": {
    "orderId": {
      "type": "string",
      "maxLength": 64
    },
    "orderToken": {
      "type": "string",
      "maxLength": 64
    }
  },
  "additionalProperties": false
}
check_usage annotations
{
  "title": "Check data left",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
diagnose_esim — Diagnose an eSIM
Advertised by the server during the last successful anonymous check.
Advertised read-only

Why an eSIM may not work: line state, every package (started, data left, expired) and the last mobile network the phone registered on, with the likely cause and the fix. For the eSIM of a fulfilled order.

diagnose_esim input schema
{
  "type": "object",
  "required": [
    "orderId",
    "orderToken"
  ],
  "properties": {
    "orderId": {
      "type": "string",
      "maxLength": 64
    },
    "orderToken": {
      "type": "string",
      "maxLength": 64
    }
  },
  "additionalProperties": false
}
diagnose_esim annotations
{
  "title": "Diagnose an eSIM",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
install_help — Install help
Advertised by the server during the last successful anonymous check.
Advertised read-only

Step-by-step eSIM installation and first-use help for iPhone or Android, and fixes for common problems.

install_help input schema
{
  "type": "object",
  "required": [
    "platform"
  ],
  "properties": {
    "problem": {
      "enum": [
        "install",
        "no_internet",
        "no_signal",
        "qr_wont_scan"
      ],
      "type": "string",
      "description": "Leave empty for the install steps"
    },
    "platform": {
      "enum": [
        "iphone",
        "android"
      ],
      "type": "string"
    }
  },
  "additionalProperties": false
}
install_help annotations
{
  "title": "Install help",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

3 advertised

plan_trip — Plan mobile data for a trip

Advertised by the server during the last successful anonymous check.

Find the right eSIM plan for a trip and help buy it.

destinations
Countries, e.g. "Italy, France" (required)
days
Length of the trip in days (required)
usage
light, normal or heavy
install_esim — Help me install my eSIM

Advertised by the server during the last successful anonymous check.

Walk through installing a GLOBALCELL eSIM on a phone.

phone
e.g. "iPhone 15" or "Galaxy S24" (required)
add_data_package — Add data to my eSIM

Advertised by the server during the last successful anonymous check.

Check the data left and add a package to an existing eSIM.

iccid
The ICCID of the eSIM (on the order page) (required)

Resources

4 advertised

agent-guide — How to help a traveller buy an eSIM

Advertised by the server during the last successful anonymous check.

The selling flow, rules and wording for AI assistants.

agent-guide URI
globalcell://guide/agents

MIME type: text/markdown

install-guide — Installing and using a travel eSIM

Advertised by the server during the last successful anonymous check.

Install steps for iPhone and Android, first use abroad, and common fixes.

install-guide URI
globalcell://guide/install

MIME type: text/markdown

destinations — Destinations and lowest prices

Advertised by the server during the last successful anonymous check.

Every country and region with plans, with networks and the lowest price per currency.

destinations URI
globalcell://catalog/destinations

MIME type: application/json

partner-guide — Connecting as a partner

Advertised by the server during the last successful anonymous check.

For resellers, dealers, shops and developers: keys, sandbox, the REST API and these MCP tools.

partner-guide URI
globalcell://guide/partners

MIME type: text/markdown

90-day uptime

A lightweight connection check about every six hours, sampled on hosts with many listings. It shows the server answered, not that its tools work.

Too few checks for a percentage yet (2 of 2 answered).

  1. 2026-11-07: 1 of 1 checks answered
  2. 2026-11-09: 1 of 1 checks answered

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
1185 ms
95th percentile latency
1185 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 1185 ms · metadata changed · 12 tool(s), 4 resource(s), 0 resource template(s), 3 prompt(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http globalcell-mcp https://mcp.globalcell.dev

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add globalcell-mcp --url https://mcp.globalcell.dev

Cursor

Merge this server into .cursor/mcp.json in your project, then enable globalcell-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "globalcell-mcp": {
      "url": "https://mcp.globalcell.dev"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "globalcell-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.globalcell.dev",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start globalcell-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "globalcell-mcp": {
      "type": "http",
      "url": "https://mcp.globalcell.dev"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http globalcell-mcp https://mcp.globalcell.dev

Claude Desktop

Open Claude Settings > Connectors > Add custom connector, enter this server URL and enable it for the conversation. This is a manual remote-connector handoff, not a desktop JSON configuration.
Claude Desktop configuration
https://mcp.globalcell.dev

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "globalcell-mcp": {
      "serverUrl": "https://mcp.globalcell.dev"
    }
  }
}

Let your agent find its tools

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