worldwide eSIM — one eSIM for the whole world for Grok
com.worldwideesim/esim-catalog
One travel eSIM for 98 countries: live quotes by continent and GB, country check and a buy link.
client:Grok
transport:streamable-http
tools:7
Install worldwide eSIM — one eSIM for the whole world in Grok
.mcp.json (in your project root)
{
"mcpServers": {
"esim-catalog": {
"type": "http",
"url": "https://worldwideesim.com/wp-json/worldwideesim/mcp"
}
}
}Grok Build reads Claude Code's .mcp.json and Claude Desktop's config unchanged, so a server you have already set up there needs nothing new. The Grok web app and X integration do not take custom servers. Grok docs