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Bloomy eSIM MCP server

Which servers in the official MCP registry are Bloomy eSIM's own, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-19

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Whose server it is
  • Registry namecom.bloomyesim/esimverified in the MCP registry

The registry name sits under bloomyesim.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-19
  • Stateanswerschecked 2026-10-19
  • Tools7
  • Server calls itselfbloomy-esim
  • Server version1.3.0
  • Protocol version2025-06-18

On 2026-10-19 the server answered initialize and tools/list without a sign-in. First answer in 211 ms.

Measured dailydaily checks: 1, the first on 2026-10-19
  • Answeredmeasuring1 of the 7 daily checks it takes to print a share
  • Median first answer406 ms
  • Space in an agent's context≈ 1,620 tokensthe definitions of all its tools (7), which an agent carries on every turn
  • Tool definitionsA · 90 of 100
  • Parameters without a description: in 4 of 7

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The state of vendors' MCP servers: method and numbers →

Tools it offers7 tools · read 2026-10-19
  • recommend_plan

    Takes the destination (or all destinations of a multi-country trip) and trip length, plus how the traveler uses data if known. Returns up to 3 options with a reason each: best_fit (cheapest that covers the estimated need), budget…

  • search_plans

    List plans for a destination, cheapest first, single-country plans before multi-country ones. Filter by trip length, minimum GB, and plan type.

  • estimate_data

    Same formula as bloomyesim.com/data-calculator: daily MB per activity x days x Wi-Fi factor x 1.15 safety buffer, rounded up.

  • list_destinations

    Countries with a dedicated plan, with ISO code, localized name, number of plans and the lowest price. Filterable with query.

  • get_plan

    Details of one plan: data, validity, network, 5G, top-up, carriers, price and checkout link.

  • get_purchase_link

    Link straight to the final confirmation screen for this plan. The traveler pays there themselves; this tool never takes payment. The QR code is emailed and shown in My Page right after payment.

  • get_setup_guide

    Short, accurate setup steps (iPhone or Android), what to check before buying, and links to the full guide, the device checker and troubleshooting.

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "esim": {
      "type": "http",
      "url": "https://bloomyesim.com/wp-json/bloomy/v1/mcp"
    }
  }
}

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.