Country Calling Codes

codes.countrycalling/countrycallingcodesVersion 1.4.0

Calling codes, phone analysis, dialing guidance, batch normalization and calling windows.

Status

Responds296 msNov 14, 2026, 13:44 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 13:44 UTC
Latency: 296 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: Hosted outside the EU (detected)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://www.countrycalling.codes/api/mcpResponds296 msNov 14, 2026, 13:44 UTC

No sign-in

Claude Code

claude mcp add --transport http countrycallingcodes https://www.countrycalling.codes/api/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: countrycallingcodes
Remote MCP server URL: https://www.countrycalling.codes/api/mcp

Cursor

{
  "mcpServers": {
    "countrycallingcodes": {
      "url": "https://www.countrycalling.codes/api/mcp"
    }
  }
}

VS Code

code --add-mcp '{"name":"countrycallingcodes","type":"http","url":"https://www.countrycalling.codes/api/mcp"}'

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Tools

11 tools

Tools of Country Calling Codes
	Description		Read-only	Idempotent	Open world
`analyze_phone_number`Analyze a number using versioned numbering metadata. National numbers need numberCountryCode; exit prefixes need originCountryCode. Reports uncertainty and rule evidence, never live subscriber status.	Analyze a number using versioned numbering metadata. National numbers need numberCountryCode; exit prefixes need originCountryCode. Reports uncertainty and rule evidence, never live subscriber status.	No	Yes	Yes	No
`compare_phone_numbers`Compare two numbers after analysis. Missing context produces indeterminate. Extensions must match unless extensionPolicy is explicitly ignore; equality does not establish ownership.	Compare two numbers after analysis. Missing context produces indeterminate. Extensions must match unless extensionPolicy is explicitly ignore; equality does not establish ownership.	No	Yes	Yes	No
`diagnose_dialing_problem`Explain formatting issues and propose reviewed prefix repairs for confirmation. Uses the same analyzer. Cannot determine why a network rejected a call.	Explain formatting issues and propose reviewed prefix repairs for confirmation. Uses the same analyzer. Cannot determine why a network rejected a call.	No	Yes	Yes	No
`find_calling_windows`Find overlapping working hours using explicit IANA time zones and dates. Handles overnight shifts and DST; never infers location from phone numbers or contacts participants.	Find overlapping working hours using explicit IANA time zones and dates. Handles overnight shifts and DST; never infers location from phone numbers or contacts participants.	No	Yes	Yes	No
`format_international_phone_number`Normalize a phone number into a plausible international format using reviewed country-specific rules. Processing is ephemeral. This tool does not query carriers, HLR/HSS, MNP databases, or live subscribers.	Normalize a phone number into a plausible international format using reviewed country-specific rules. Processing is ephemeral. This tool does not query carriers, HLR/HSS, MNP databases, or live subscribers.	No	Yes	Yes	No
`get_dialing_instructions`Prepare origin-specific dialing guidance for reviewed countries. Provide origin and destination separately; no phone number returns safe placeholder patterns. Network-dependent results remain conditional.	Prepare origin-specific dialing guidance for reviewed countries. Provide origin and destination separately; no phone number returns safe placeholder patterns. Network-dependent results remain conditional.	No	Yes	Yes	No
`get_phone_capabilities`Discover supported countries, per-operation review coverage, evidence, dataset versions and request limits before choosing a phone workflow.	Discover supported countries, per-operation review coverage, evidence, dataset versions and request limits before choosing a phone workflow.	No	Yes	Yes	No
`get_phone_input_rules`Get reviewed display placeholders and trunk-prefix guidance. Examples are not validation masks. English fallback and unsupported editorial coverage are explicit.	Get reviewed display placeholders and trunk-prefix guidance. Examples are not validation masks. English fallback and unsupported editorial coverage are explicit.	No	Yes	Yes	No
`lookup_country_calling_code`Look up international country calling codes by free text, ISO code, dial code, or region. Optionally return reviewed, source-linked dialing examples. This tool does not verify live subscriber numbers.	Look up international country calling codes by free text, ISO code, dial code, or region. Optionally return reviewed, source-linked dialing examples. This tool does not verify live subscriber numbers.	No	Yes	Yes	No
`normalize_phone_numbers`Normalize up to 100 records with unique IDs. Invalid records produce individual errors. Optionally identify canonical duplicate candidates; no contacts are changed or stored.	Normalize up to 100 records with unique IDs. Invalid records produce individual errors. Optionally identify canonical duplicate candidates; no contacts are changed or stored.	No	Yes	Yes	No
`resolve_phone_region`Resolve a phone number to metadata-backed country candidates or non-geographic numbering. Results are numbering assignments, not current location or carrier.	Resolve a phone number to metadata-backed country candidates or non-geographic numbering. Results are numbering assignments, not current location or carrier.	No	Yes	Yes	No

Details

Registry status: Active
Published: Nov 12, 2026
Updated: Nov 12, 2026
Website: https://www.countrycalling.codes/developers#mcp⁠ (opens in a new tab)
Repository: https://github.com/Kajdep/v0-countrycallingcodes⁠ (opens in a new tab)
Categories (suggested): CommunicationSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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