eFon international call rates & VoIP MCP Server

by efon Your server? Claim it

answering

eFon international call rates & VoIP is answering right now. Last checked 7 min ago. It exposes 3 tools.

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

Uptime history 18 days of history · worst day 99%

18 days agonow

98.9%

Uptime 24h

91 of 92 checks

Tools

read from the server

231 ms

Response time

average over 24h

open, no key

Access

streamable-http

eFon international call rates & VoIP missed 2 checks this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

~/Library/Application Support/Claude/claude_desktop_config.json

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

~/.codex/config.toml

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

.cursor/mcp.json

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

.vscode/mcp.json

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

Available tools 3

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

call

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".

compare

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?").

how

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.

Endpoints

URL	Transport	State	Latency	Checked
https://efon.com/mcp	streamable-http	answering	215 ms	7 min ago

Alternatives to eFon international call rates & VoIP

same job, measured the same way

Suparelay

by suparelay

International calls from your AI agent: price per minute and a Call link to the browser dialer.

2 tools answering

Cannon VoIP AI Assistant

by cannonvoip

Ask about Cannon VoIP pricing, plans, features, international rates, coverage, and FAQs.

1 tools answering

Obolus

by sanzation

Read-only payroll calculations and multi-country tax comparisons for eight countries.

2 tools answering

Un Comtrade MCP Server

by cyanheads

UN Comtrade international trade statistics via MCP. Country/HS lookups, flows, balances, rankings.

251 installs/wk local only

Billy MCP

by thourum

Billy (billy.dk) accounting: invoices, journal entries, trial balance, with write protection.

34 installs/wk local only

Booking.com Hotel Search (Live Prices)

by flightpowers

Live Booking.com hotel prices, plus per-country pricing for rate-parity monitoring.

3 tools answering

esimoa — travel eSIM comparison

by esimoa

Compare travel eSIM plans by country, days and data — live prices and links to buy on esimoa.

6 tools answering

TopAlternativesTo

by natden444

Compare software: verified pricing with its source and date, and ranked alternatives.

3 tools answering

eFon international call rates & VoIP — questions

Answers built from our own checks of this server.

What can eFon international call rates & VoIP do?

It exposes 3 tools, read directly from the server on our last check. Among them: compare_call_rates, get_call_rates, how_to_call. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is eFon international call rates & VoIP working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 92 checks got a reply (98.9%), average response time 231 ms. The bar chart above shows every period we have measured.

How do I connect eFon international call rates & VoIP?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does eFon international call rates & VoIP need an API key?

No. eFon international call rates & VoIP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 3 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is eFon international call rates & VoIP?

It answers our handshake in 231 ms on average, which is faster than 57% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.