Agent setup guide
Use eSIM Grab in Claude
Turn your AI into your personal eSIM search engine. Connect once, then compare current plans for one country or a multi-country trip.
MCP 0.9.1 · beta · Streamable HTTP
Read-only tools. No eSIM Grab account, API key or sign-in required.
MCP server URL: https://esimgrab.com/mcp
Use it on your phone
Add the connector on Claude web or desktop first; mobile installation is still beta. It becomes available in the iOS and Android apps with the same account. Enable it in a normal conversation. Claude Research started on mobile does not use connectors.
Connect eSIM Grab
- On Claude web or desktop, open Customize → Connectors → Add → Custom → Web (some accounts show Add custom connector).
- Name it eSIM Grab, enter the server URL above, choose No sign in and leave request headers empty.
- Review and add the connector. In a new normal conversation, enable eSIM Grab from + → Connectors, then paste the test request below.
Workspace policies may restrict custom connections. Reuse an existing connection when available. A custom connection is separate from a public directory listing.
Verify with a live search
Use eSIM Grab to compare Japan eSIM plans with at least 10 GB and 7 days of validity in USD. Show current prices, restrictions and source links. Tell me which tools you used.
The agent should resolve Japan, search current plans and report the returned result. Only call the connection ready after a real MCP tool call succeeds. A saved URL or web browsing alone does not verify MCP access. Empty results are valid; never invent an offer.
find_destinations → search_esim_plans
{ "search": "Japan" }{ "kind": "country", "slug": "japan", "currency": "USD", "dataMin": 10, "validityMin": 7 }Compare your trip
I will spend 7 days in Japan, then 3 days in South Korea. I need 5 GB in Japan and 2 GB in South Korea. Compare one plan for the whole trip with separate purchases in USD, and explain coverage, validity and data limits.
MCP exposes current catalog offers only. Historical prices remain proprietary. Tools cannot buy or activate an eSIM. eSIM Grab may earn a commission at no extra cost to you.
Detailed MCP documentation (English)Optional setup for a local agent
These commands configure local Codex or Claude Code only. They do not add a connection to your mobile account. Reuse an existing entry, and start a new session if tools do not appear.
claude mcp add --transport http esim-grab --scope user https://esimgrab.com/mcp