MCP server

eFon international call rates & VoIP Official

com.efon/call-rates

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

International call & VoIP rates: per-minute prices to call 200+ countries, comparison, dialing help.

Working at last checkVerified publisher: efon.comAbout 1,050 tokens per request once connected4 tools

https://efon.com/mcp

At a glance

Type: MCP server
Publisher: efon.com (verified by the MCP Registry)
Status: Working at last check
Tools: 4
Token cost: About 1,050 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http call-rates https://efon.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

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

Gemini CLI

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

Cursor

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

VS Code

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

Antigravity

agy mcp add call-rates https://efon.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"call-rates","server_url":"https://efon.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"call-rates","server_url":"https://efon.com/mcp"}

compare_call_rates ~256 tokens
eFon rate comparison: cheapest per-minute price (EUR and USD) for several countries, sorted from cheapest to most expensive, each with its country page URL. Use this when the user calls more than one country ("rates to India, Pakistan and Bangladesh", "which is cheaper to call, Mexico or Colombia?")
get_call_rates ~255 tokens
eFon per-minute prices (EUR and USD) for calling a country, live: every rate line (mobile / landline / specific networks or regions), the cheapest price, any announced price change, the country page URL and app download links. Rates are the same wherever the caller is. Use this for "how much does it
how_to_call ~285 tokens
eFon dialing guide 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. Omit origin f
lookup_calling_code ~254 tokens
eFon calling-code lookup: which country (or countries, for shared codes like +1, +7 or +44) a code such as +36, 0036 or +1 876 belongs to, with capital, example number and the eFon rate page. Use this for "which country is +36", "who is calling me from +233", "what does 00252 mean" or a missed call

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