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MCP Server

eFon international call rates & VoIP

com.efon/call-rates
Communication Public & reachable MCP 2026-07-28

What this MCP does

Provides international eFon calling rates, country comparisons, and dialing instructions.

Capabilities

Tools

3 tools
compare_call_rates
Compare eFon call rates across countries
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 Idempotent
Input schema 
{'type': 'object', 'required': ['countries'], 'properties': {'language': {'enum': ['en', 'de', 'fr', 'nl', 'da', 'sv', 'nb', 'es', 'pt', 'it', 'ar', 'ti', 'ru'], 'type': 'string', 'default': 'en', 'description': 'Language for country names and the returned page links.'}, 'countries': {'type': 'array', 'items': {'type': 'string', 'description': "Country name in any language, ISO 3166-1 alpha-2 code or dialing code — e.g. 'Eritrea', 'ER', 'Эритрея', '+291'."}, 'maxItems': 20, 'minItems': 1, 'description': 'Up to 20 countries, each in any of the formats above.'}}}
get_call_rates
eFon call rates to a country
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 Idempotent
Input schema 
{'type': 'object', 'required': ['country'], 'properties': {'country': {'type': 'string', 'description': "Country name in any language, ISO 3166-1 alpha-2 code or dialing code — e.g. 'Eritrea', 'ER', 'Эритрея', '+291'."}, 'language': {'enum': ['en', 'de', 'fr', 'nl', 'da', 'sv', 'nb', 'es', 'pt', 'it', 'ar', 'ti', 'ru'], 'type': 'string', 'default': 'en', 'description': 'Language for country names and the returned page links.'}}}
how_to_call
How to dial a country from another
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 Idempotent
Input schema 
{'type': 'object', 'required': ['destination'], 'properties': {'origin': {'type': 'string', 'description': "Country the caller is in (optional). Country name in any language, ISO 3166-1 alpha-2 code or dialing code — e.g. 'Eritrea', 'ER', 'Эритрея', '+291'."}, 'language': {'enum': ['en', 'de', 'fr', 'nl', 'da', 'sv', 'nb', 'es', 'pt', 'it', 'ar', 'ti', 'ru'], 'type': 'string', 'default': 'en', 'description': 'Language for country names and the returned page links.'}, 'destination': {'type': 'string', 'description': "Country name in any language, ISO 3166-1 alpha-2 code or dialing code — e.g. 'Eritrea', 'ER', 'Эритрея', '+291'."}}}
History

Recent tool changes

Added
how_to_call
Sept. 25, 2026, 2:40 a.m.
Added
compare_call_rates
Sept. 25, 2026, 2:40 a.m.
Added
get_call_rates
Sept. 25, 2026, 2:40 a.m.
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