International call & VoIP rates: per-minute prices to call 200+ countries, comparison, dialing help.
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First seen 2 Oct 2026. One server, whatever directories list it: each directory listing keeps its own page and history.
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Tools
| Tool | Description | Behaviour |
|---|---|---|
| compare_call_rates | Cheapest eFon per-minute price (EUR and USD) for several countries at once, 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?"). | Read-only |
| 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. Rates are the same wherever the caller is. Use this for "how much does it cost to call X", "cheapest way to call X", "international / VoIP call rates to X" or "is calling X from abroad expensive". | 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. Omit origin for the international (+) format only. | Read-only |
| Directory | Listing | Tier | First seen |
|---|---|---|---|
| Official MCP Registry | eFon international call rates & VoIP | - | 2 Oct 2026 |
| Smithery | eFon — International Call Rates & VoIP | - | 2 Oct 2026 |