Agent setup guide
Use eSIM Grab in ChatGPT
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.
Connect eSIM Grab
Use eSIM Grab in ChatGPT- Open eSIM Grab in the ChatGPT Plugins Directory on web or desktop and install it.
- Start a new chat, select @eSIM Grab, and try the live search below.
Use it on your phone
After installing, use eSIM Grab in Chat or Work on the mobile app with the same account and workspace, where available.
Manual MCP setup
MCP server URL: https://esimgrab.com/mcp
- Open ChatGPT Plugins on the web and choose + → Add custom MCP server.
- Name it eSIM Grab. Enter the server URL above and choose No authentication.
- Review the warning and discovered tools, create the plugin, and install it in your account.
- Start a new Work chat, select eSIM Grab with @, and 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.
codex mcp add esim-grab --url https://esimgrab.com/mcp