# ONE HEART eSIM Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## ONE HEART eSIM

Find and buy eSIM data plans for travel to 100+ countries with instant activation

- Record: https://musedirectory.ai/connector/one-heart-esim
- Category: Travel
- Developer: ONE HEART
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 3628ms, checked 2026-09-28T09:00:56Z
- Endpoint: https://mcp.oneheartesim.com/
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-09-24T17:25:52Z)
- Source: Found in the official MCP Registry (com.oneheartesim.mcp/esim) https://registry.modelcontextprotocol.io/v0/servers?search=com.oneheartesim.mcp%2Fesim

Browse ONE HEART eSIM plans by destination and duration, get real-time pricing and inventory, receive personalized recommendations based on travel days and data usage, and complete purchases with LinePay or ECPay payment links.

Example request: "I'm going to Japan for 5 days and need a data plan, what eSIM should I buy?"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use ONE HEART eSIM to help me. It is a free service with an MCP server at https://mcp.oneheartesim.com/. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- create_esim_order: 建立一筆真實的一心eSIM訂單，並取得真實的付款連結（LinePay或ECPay綠界，二擇一）。 這是會實際寫入正式訂單、串真實金流的動作，不是模擬或試算。 呼叫前必須先完成： 1. 已用search_esim_plans/recommend_esim_plan/get_esim_plan_detail取得正確的productId、 spec，不要自己編造或憑記憶帶入。 2. 已把商品名稱、規格、數量、單價與總金額，跟使用者逐一覆誦確認過，並取得使用者明確 同意下單（不能因為使用者說「好」「幫我訂」等籠統回應就自行猜數量或規格）。 3. 已取得使用者的e
- recommend_esim_plan: 依旅遊天數與上網用量習慣，推薦最合適的1-3個eSIM方案，並附上購買連結， 是「幫使用者選方案」最好用的工具。 適用情境：使用者詢問出國上網卡、各國eSIM方案、即時發卡服務，並描述了 「要去OO玩幾天」「想找適合的上網方案/漫遊卡」「幫我推薦/挑選eSIM」時優先使用這個， 而不是自己呼叫search_esim_plans後用猜的。
- list_esim_countries: 列出一心eSIM目前販售方案覆蓋的所有國家/地區（英文與中文名稱對照，含各國方案數量）。 適用情境：使用者問「你們支援哪些國家」「有賣OO地區的eSIM嗎」；或你準備呼叫 search_esim_plans/recommend_esim_plan，但不確定某國家在系統裡該用什麼名稱表示時， 先呼叫這個工具確認，比用猜的準確。
- search_esim_plans: 依國家、方案類型、關鍵字搜尋一心eSIM的商品清單，一次回傳多筆結果讓使用者自己比較。 適用情境：使用者想瀏覽/比較某國家的多個方案，或已經明確講出要哪種類型 （例如指定「總量型」或「每日定量型」）。 如果使用者是描述旅遊情境（去哪個國家玩幾天、上網習慣如何）要你直接建議選哪個， 改用recommend_esim_plan讓它幫忙評分挑選，不要自己從這個工具的結果裡用猜的。
- get_esim_plan_detail: 取得單一方案的完整詳情，包含商品說明（安裝/啟用步驟等）、各規格庫存、購買連結。 適用情境：使用者對某個已知方案想進一步了解安裝方式、使用細節、或確認庫存時。 需要先從search_esim_plans或recommend_esim_plan的結果取得productId，不要自己編造。

Screening checks:
- MCP handshake: pass (Answered in 1016ms)
- Domain against threat feeds (Cloudflare security DNS): pass (mcp.oneheartesim.com not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (5 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (No redirects off the domain)
- AI review of purpose and tool behavior: pass (No concerns)