list_esim_countries — ONE HEART eSIM MCP Tool Read-only
list_esim_countries
(list esim countries) is one of 5 tools on the
ONE HEART eSIM
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call list_esim_countries from your client
- Claude Code ONE HEART eSIM list_esim_countries run in your project directory
- Claude Desktop ONE HEART eSIM list_esim_countries ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor ONE HEART eSIM list_esim_countries ~/.cursor/mcp.json
- VS Code ONE HEART eSIM list_esim_countries .vscode/mcp.json
- Zed ONE HEART eSIM list_esim_countries ~/.config/zed/settings.json
- Windsurf ONE HEART eSIM list_esim_countries ~/.codeium/windsurf/mcp_config.json
- Cline ONE HEART eSIM list_esim_countries ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI ONE HEART eSIM list_esim_countries ~/.gemini/settings.json
- Grok ONE HEART eSIM list_esim_countries .mcp.json (in your project root)
- ChatGPT ONE HEART eSIM list_esim_countries Settings → Connectors → Advanced → Developer mode
- Claude.ai ONE HEART eSIM list_esim_countries Settings → Connectors → Add custom connector
- LangChain ONE HEART eSIM list_esim_countries pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http esim https://mcp.oneheartesim.com/Other tools on this server
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.