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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

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

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

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

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "call-rates": {
      "type": "remote",
      "url": "https://efon.com/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "call-rates": {
      "type": "http",
      "url": "https://efon.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=call-rates&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vZWZvbi5jb20vbWNwIn0%3D"
}

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

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

extensions:
  "call-rates":
    enabled: true
    name: "call-rates"
    type: streamable_http
    uri: "https://efon.com/mcp"
    timeout: 300

Quality 91 / 100strong

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene100 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations4 of 4 tools declare readOnlyHint or destructiveHint
pass
tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
pass
tools.token_costabout 973 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changes1 tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

4 tools, about 973 tokens to load them all · tool set 3f4a0f9b6c66 · tools last changed 2026-10-13 · checked 2026-10-20 14:54 UTC

Tool changes

2026-10-13lookup_calling_codeadded
Reverse lookup of an international dialing code: 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 from an unknown foreign number. Includes the cheapest eFon per-minute rate for calling back and a scam warning for one-ring calls; for the full rate list use get_call_rates.

Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 83 / 100

no-repository

provenance55

liveness100

freshness100

hygiene80

+dns-namespace +website +reachable +uptime-100% +updated-7d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://efon.com/mcp` streamable-http	none	yes	100%	491 ms	2025-11-25	2026-10-20

Tools (4)

`compare_call_rates`read-only	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?").
`get_call_rates`read-only	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".
`how_to_call`read-only	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.
`lookup_calling_code`read-only	Reverse lookup of an international dialing code: 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 from an unknown foreign number. Includes the cheapest eFon per-minute rate for calling back and a scam warning for one-ring calls; for the full rate list use get_call_rates.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.efon/call-rates",
  "title": "eFon international call rates & VoIP",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://efon.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.2.0",
  "websiteUrl": "https://efon.com",
  "description": "International call & VoIP rates: per-minute prices to call 200+ countries, comparison, dialing help."
}