MyBestSim eSIM comparator
Compare prepaid travel eSIM plans by destination, data and trip length for international trips.
Compares prepaid eSIM plans from multiple providers for travel to specific countries or multi-country trips. Shows data allowance, validity, price in USD and EUR, features like 5G and hotspot, promo codes, and links to purchase from providers.
Try asking Muse: "Find the cheapest eSIM with 10 GB for a two-week trip to Japan and South Korea."
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Source: Found in the official MCP Registry (com.mybestsim/esim-comparator) · First listed October 28, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 3 h ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. 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.
https://mcp.mybestsim.com/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Also use it in ChatGPT or Claude
MyBestSim eSIM comparator is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
Add it to ChatGPT
- 1
Open ChatGPT settings
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
- 2
Turn on developer mode
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
- 3
Create the connector
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
- 4
Use it in a chat
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
Add it to Claude
- 1
Open Claude settings
In Claude, open Settings, then Connectors.
- 2
Add a custom connector
Choose Add custom connector, give it a name, and paste the link.
- 3
Connect and use it
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://mcp.mybestsim.com/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 320ms. Worked in 100% of checks over 30 days.
Screening · October 28, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 4
search_esim_plansUse this when someone is choosing a travel eSIM or needs mobile data abroad for a given country or region, e.g. "cheapest eSIM for Japan", "10 GB for two weeks in Europe", "unlimited data in the USA". Returns a shortlist (up to 10, at most 2 per provider) from the MyBestSim compaplan_trip_esimUse this when one trip visits SEVERAL countries or regions, e.g. "Japan then China", "two weeks in France, Italy and Spain", "Thailand, Vietnam and Cambodia in March". Pass EVERY stage in travel order, with the days spent in each when known (or totalDurationDays), and the data neget_destination_overviewUse this when someone asks how much a travel eSIM costs in a country or region, what the average or typical price is, or how much choice there is, before comparing individual plans. Returns the number of plans and providers listed on the MyBestSim comparison page, typical prices get_esim_planUse this when someone wants the detail of one plan returned by search_esim_plans or get_destination_overview: coverage (number of countries, region), features, validity and price. Needs the planId and the destination it was found under.Recent checks
Link
https://mcp.mybestsim.com/mcpQuestions about MyBestSim eSIM comparator in Muse
How do I connect MyBestSim eSIM comparator to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use MyBestSim eSIM comparator to help me. It is a free service with an MCP server at https://mcp.mybestsim.com/mcp. 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.
Is MyBestSim eSIM comparator working right now?
At the last check (October 29, 2026, 09:01 UTC) the endpoint was working, answering in 320ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is MyBestSim eSIM comparator safe to connect to Muse?
It was screened on October 28, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can MyBestSim eSIM comparator do in Muse?
It exposes 4 tools, including search_esim_plans, plan_trip_esim, get_destination_overview, get_esim_plan. For example, you could ask Muse: "Find the cheapest eSIM with 10 GB for a two-week trip to Japan and South Korea."
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This listing was added from public sources (Found in the official MCP Registry (com.mybestsim/esim-comparator)). If you build MyBestSim eSIM comparator, claim it to correct the details and get your badge.
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