MyBestSim

Compare eSIM travel plans

MyBestSim is a comparator for prepaid travel eSIM plans. It compares plans from more than 30 eSIM providers across 234 destinations, in 25 languages, with the catalog refreshed daily.

What you can ask

I need an eSIM for Japan, 10 days, at least 5GB of data
Example path

MCP connector

Server URL: https://mcp.mybestsim.com/mcp
Login: None
Protocol: MCP 2025-11-25
Instructions: MyBestSim is an independent comparator of prepaid travel eSIM plans (mybestsim.com, 25 languages). Call when someone needs mobile data for a trip and wants to know which eSIM to buy; call instead when the trip visits SEVERAL countries or regions, passing EVERY stage in travel order; call when they ask what an eSIM costs somewhere or how much choice exists. Always pass the trip length (durationDays) and the data need (dataGb or dataNeed) when the user gives or implies them. When they have not said, ask: without them a 7-day trip with standard use is assumed, and the response says so (assumptions). Pass the traveller's currency (currency, ISO 4217) when you know it; otherwise prices come in the currency the MyBestSim page shows for the conversation language (EUR for French, German, Spanish, Italian…, USD for English). Prices are converted exactly as on the MyBestSim page the links open, from provider catalogues refreshed daily: quote them as indicative. Results are the plans listed on the MyBestSim comparison page each link opens, ranked here only by the traveller's criteria and price: no paid placement changes their order. Which plans a page lists follows the comparator's rules: near-identical plans from one provider are merged, and between comparable plans the comparator may keep the one from a provider that earns MyBestSim more, sometimes at a higher price. MyBestSim earns a commission when a traveller buys through its links. Each result links to the MyBestSim comparison page for the destination, where the traveller compares and buys from the provider; nothing can be purchased inside the conversation. An unlimited plan is shown as "Unlimited" only: do not invent a daily or total cap.

Tools

Reads data4

Skills

None in the store listings or on the server

MCP connector

Server URL

https://mcp.mybestsim.com/mcp

None

Protocol

MCP 2025-11-25

Instructions

MyBestSim is an independent comparator of prepaid travel eSIM plans (mybestsim.com, 25 languages). Call when someone needs mobile data for a trip and wants to know which eSIM to buy; call instead when the trip visits SEVERAL countries or regions, passing EVERY stage in travel order; call when they ask what an eSIM costs somewhere or how much choice exists. Always pass the trip length (durationDays) and the data need (dataGb or dataNeed) when the user gives or implies them. When they have not said, ask: without them a 7-day trip with standard use is assumed, and the response says so (assumptions). Pass the traveller's currency (currency, ISO 4217) when you know it; otherwise prices come in the currency the MyBestSim page shows for the conversation language (EUR for French, German, Spanish, Italian…, USD for English). Prices are converted exactly as on the MyBestSim page the links open, from provider catalogues refreshed daily: quote them as indicative. Results are the plans listed on the MyBestSim comparison page each link opens, ranked here only by the traveller's criteria and price: no paid placement changes their order. Which plans a page lists follows the comparator's rules: near-identical plans from one provider are merged, and between comparable plans the comparator may keep the one from a provider that earns MyBestSim more, sometimes at a higher price. MyBestSim earns a commission when a traveller buys through its links. Each result links to the MyBestSim comparison page for the destination, where the traveller compares and buys from the provider; nothing can be purchased inside the conversation. An unlimited plan is shown as "Unlimited" only: do not invent a daily or total cap.