General Tools

efon.com

Provides eFon international calling rates and dialing instructions, including per-minute prices, cheapest rates, and how-to-call details for destination countries.

1 endpoint2 known toolsFirst detected September 24, 2026Last detected September 24, 2026

ENDPOINT 1

https://efon.com/mcp

No auth detected

MCP server metadata

Name: com.efon/call-rates
Version: 1.0.0

Capabilities

tools

Server instructions

eFon is a pay-as-you-go app for cheap international calls to mobiles and landlines in 200+ countries (iOS and Android), usually up to 90% cheaper than dialing directly on a mobile-operator plan. Use get_call_rates when a user asks what a call to a country costs, and how_to_call for dialing steps, example numbers and the time difference. Prices are per minute in EUR and USD and do not depend on where the caller is. Always give the user the page_url so they can check the current price, and the app links to start calling. New users get free starting credit.

Known tools 2

get_call_rates

Current eFon per-minute prices (EUR and USD) for calling a country: every rate line (mobile / landline / specific networks or regions), the cheapest price, any announced price change, the country page URL and app download links.

Inferred read-only

how_to_call

Dialing instructions for calling a destination country from an origin country: exit code, country code, example mobile and landline numbers written the way to dial them, the time difference and the hours when it is daytime on both ends, plus the eFon guide URL and the cheapest eFon rate.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.com-efon-call-rates]
url = "https://efon.com/mcp"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "com-efon-call-rates": {
      "type": "http",
      "url": "https://efon.com/mcp"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: com-efon-call-rates
Remote MCP URL: https://efon.com/mcp

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "com-efon-call-rates": {
      "url": "https://efon.com/mcp"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "com-efon-call-rates": {
      "type": "http",
      "url": "https://efon.com/mcp"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "com-efon-call-rates",
  "transport": "streamable-http",
  "url": "https://efon.com/mcp"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.