Koskamo

Simsima MCP

Provides a travel eSIM catalog for AI assistants, enabling tools to list destinations, search and recommend data plans, check coverage, and generate checkout links for purchases on simsima.io.

Visit Simsima

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.

Simsima MCP logo, by SimsimaCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-07Published by Simsima
MCP endpoint (Streamable HTTP)
https://mcp.simsima.io/mcp
Vendor documentation

What its tools do

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

Read-only (7)

7 of 7 have a description · 7 of 7 declare behavior hints · 1 of 7 with parameters document them all

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Endpoint answered the live check ·
  • Availability 1 of 1 checks passed in 30 days

What you can do with it

  • Search for eSIM data plans by destination
  • Recommend suitable plans for travelers
  • Check network coverage for specific countries
  • Generate checkout links for eSIM purchases

Source and maintenance

Community listingRegistry 0.1.0
mcp-registry: io.github.Willyfab/simsima-connectivity@0.1.0Source repositoryProject website
Maintenance checked

Protocol and capabilities

Server
simsima-connectivity 0.1.0
MCP protocol negotiated in check
2025-11-25
Tools
7 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": true
  }
}

Tools

7 advertised

list_destinations — List eSIM destinations
Advertised by the server during the last successful anonymous check.
Advertised read-only

List the destinations Simsima covers (countries, regions and global plans), with the entry price and product URL of each.

list_destinations input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "locale": {
      "enum": [
        "en",
        "fr",
        "es",
        "de",
        "pt",
        "it",
        "zh",
        "ja",
        "ko",
        "ar",
        "ru",
        "tr",
        "hi",
        "vi",
        "th",
        "sv",
        "nb",
        "da",
        "fi",
        "nl",
        "pl",
        "cs",
        "zh-TW",
        "id",
        "tl",
        "he"
      ],
      "type": "string",
      "default": "en",
      "description": "Language of the user. Sets the language of product pages and the currency of prices (en: USD, fr: EUR, ja: JPY, etc.)."
    }
  },
  "additionalProperties": false
}
list_destinations annotations
{
  "title": "List eSIM destinations",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
search_plans — Search eSIM plans
Advertised by the server during the last successful anonymous check.
Advertised read-only

Search the eSIM plans of a destination (country, region or global), cheapest first, with optional filters on price, data, validity and unlimited data.

search_plans input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "destination"
  ],
  "properties": {
    "locale": {
      "enum": [
        "en",
        "fr",
        "es",
        "de",
        "pt",
        "it",
        "zh",
        "ja",
        "ko",
        "ar",
        "ru",
        "tr",
        "hi",
        "vi",
        "th",
        "sv",
        "nb",
        "da",
        "fi",
        "nl",
        "pl",
        "cs",
        "zh-TW",
        "id",
        "tl",
        "he"
      ],
      "type": "string",
      "default": "en",
      "description": "Language of the user. Sets the language of product pages and the currency of prices (en: USD, fr: EUR, ja: JPY, etc.)."
    },
    "maxPrice": {
      "type": "number"
    },
    "minDataGB": {
      "type": "number"
    },
    "unlimited": {
      "type": "boolean"
    },
    "destination": {
      "type": "string"
    },
    "maxValidityDays": {
      "type": "number"
    }
  },
  "additionalProperties": false
}
search_plans annotations
{
  "title": "Search eSIM plans",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
get_plan — Get eSIM plan detail
Advertised by the server during the last successful anonymous check.
Advertised read-only

Get one eSIM plan by its sku, as returned by search_plans or recommend_plan.

get_plan input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "sku"
  ],
  "properties": {
    "sku": {
      "type": "string"
    },
    "locale": {
      "enum": [
        "en",
        "fr",
        "es",
        "de",
        "pt",
        "it",
        "zh",
        "ja",
        "ko",
        "ar",
        "ru",
        "tr",
        "hi",
        "vi",
        "th",
        "sv",
        "nb",
        "da",
        "fi",
        "nl",
        "pl",
        "cs",
        "zh-TW",
        "id",
        "tl",
        "he"
      ],
      "type": "string",
      "default": "en",
      "description": "Language of the user. Sets the language of product pages and the currency of prices (en: USD, fr: EUR, ja: JPY, etc.)."
    }
  },
  "additionalProperties": false
}
get_plan annotations
{
  "title": "Get eSIM plan detail",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
recommend_plan — Recommend an eSIM plan
Advertised by the server during the last successful anonymous check.
Advertised read-only

Recommend the best plan(s) for a trip to a destination, given its length in days and expected data usage (light, medium or heavy).

recommend_plan input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "destination",
    "tripDays",
    "usage"
  ],
  "properties": {
    "usage": {
      "enum": [
        "light",
        "medium",
        "heavy"
      ],
      "type": "string"
    },
    "locale": {
      "enum": [
        "en",
        "fr",
        "es",
        "de",
        "pt",
        "it",
        "zh",
        "ja",
        "ko",
        "ar",
        "ru",
        "tr",
        "hi",
        "vi",
        "th",
        "sv",
        "nb",
        "da",
        "fi",
        "nl",
        "pl",
        "cs",
        "zh-TW",
        "id",
        "tl",
        "he"
      ],
      "type": "string",
      "default": "en",
      "description": "Language of the user. Sets the language of product pages and the currency of prices (en: USD, fr: EUR, ja: JPY, etc.)."
    },
    "tripDays": {
      "type": "integer",
      "exclusiveMinimum": 0
    },
    "destination": {
      "type": "string"
    }
  },
  "additionalProperties": false
}
recommend_plan annotations
{
  "title": "Recommend an eSIM plan",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
create_checkout_link — Get a link to buy a plan on simsima.io
Advertised by the server during the last successful anonymous check.
Advertised read-only

Return the URL of a plan's page on simsima.io, with the plan preselected, where the user can review and buy it. No order is placed and no payment is made by this tool. Pass the sku of the chosen plan; with only a destination, the link opens the destination's page without a preselected plan.

create_checkout_link input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "sku": {
      "type": "string"
    },
    "locale": {
      "enum": [
        "en",
        "fr",
        "es",
        "de",
        "pt",
        "it",
        "zh",
        "ja",
        "ko",
        "ar",
        "ru",
        "tr",
        "hi",
        "vi",
        "th",
        "sv",
        "nb",
        "da",
        "fi",
        "nl",
        "pl",
        "cs",
        "zh-TW",
        "id",
        "tl",
        "he"
      ],
      "type": "string",
      "default": "en",
      "description": "Language of the user. Sets the language of product pages and the currency of prices (en: USD, fr: EUR, ja: JPY, etc.)."
    },
    "destination": {
      "type": "string"
    }
  },
  "additionalProperties": false
}
create_checkout_link annotations
{
  "title": "Get a link to buy a plan on simsima.io",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
check_coverage — Check whether a destination covers a country
Advertised by the server during the last successful anonymous check.
Advertised read-only

Answer "does this eSIM work in <country>" for a destination (country, region or global plan). Accepts a country name or ISO code.

check_coverage input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "destination",
    "country"
  ],
  "properties": {
    "locale": {
      "enum": [
        "en",
        "fr",
        "es",
        "de",
        "pt",
        "it",
        "zh",
        "ja",
        "ko",
        "ar",
        "ru",
        "tr",
        "hi",
        "vi",
        "th",
        "sv",
        "nb",
        "da",
        "fi",
        "nl",
        "pl",
        "cs",
        "zh-TW",
        "id",
        "tl",
        "he"
      ],
      "type": "string",
      "default": "en",
      "description": "Language of the user. Sets the language of product pages and the currency of prices (en: USD, fr: EUR, ja: JPY, etc.)."
    },
    "country": {
      "type": "string"
    },
    "destination": {
      "type": "string"
    }
  },
  "additionalProperties": false
}
check_coverage annotations
{
  "title": "Check whether a destination covers a country",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
get_destination_info — Get destination coverage and networks
Advertised by the server during the last successful anonymous check.
Advertised read-only

Coverage (ISO country codes), mobile operators, top-up availability and entry price for a destination.

get_destination_info input schema
{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "destination"
  ],
  "properties": {
    "locale": {
      "enum": [
        "en",
        "fr",
        "es",
        "de",
        "pt",
        "it",
        "zh",
        "ja",
        "ko",
        "ar",
        "ru",
        "tr",
        "hi",
        "vi",
        "th",
        "sv",
        "nb",
        "da",
        "fi",
        "nl",
        "pl",
        "cs",
        "zh-TW",
        "id",
        "tl",
        "he"
      ],
      "type": "string",
      "default": "en",
      "description": "Language of the user. Sets the language of product pages and the currency of prices (en: USD, fr: EUR, ja: JPY, etc.)."
    },
    "destination": {
      "type": "string"
    }
  },
  "additionalProperties": false
}
get_destination_info annotations
{
  "title": "Get destination coverage and networks",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

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 (1 of 1 answered).

  1. 2026-11-07: 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
1326 ms
95th percentile latency
1326 ms

Maintenance history

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

  • · probe · passed · 1326 ms · metadata changed · 7 tool(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 simsima-mcp https://mcp.simsima.io/mcp

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 simsima-mcp --url https://mcp.simsima.io/mcp

Cursor

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

Cline

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

VS Code

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

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 simsima-mcp https://mcp.simsima.io/mcp

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.simsima.io/mcp

Windsurf

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

Let your agent find its tools

Find servers like Simsima MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

Connect Koskamo Explore workflows
See all 1,474