Country Calling Codes MCP server

• analyze_phone_numberFree

  Analyze a number using versioned numbering metadata. National numbers need numberCountryCode; exit prefixes need originCountryCode. Reports uncertainty and rule evidence, never live subscriber status.

• compare_phone_numbersFree

  Compare two numbers after analysis. Missing context produces indeterminate. Extensions must match unless extensionPolicy is explicitly ignore; equality does not establish ownership.

• diagnose_dialing_problemFree

  Explain formatting issues and propose reviewed prefix repairs for confirmation. Uses the same analyzer. Cannot determine why a network rejected a call.

• find_calling_windowsFree

  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.

• format_international_phone_numberFree

  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.

• get_dialing_instructionsFree

  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.

• get_phone_capabilitiesFree

  Discover supported countries, per-operation review coverage, evidence, dataset versions and request limits before choosing a phone workflow.

• get_phone_input_rulesFree

  Get reviewed display placeholders and trunk-prefix guidance. Examples are not validation masks. English fallback and unsupported editorial coverage are explicit.

• lookup_country_calling_codeFree

  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.

• normalize_phone_numbersFree

  Normalize up to 100 records with unique IDs. Invalid records produce individual errors. Optionally identify canonical duplicate candidates; no contacts are changed or stored.

• resolve_phone_regionFree

  Resolve a phone number to metadata-backed country candidates or non-geographic numbering. Results are numbering assignments, not current location or carrier.

• –Code scanremote-only server, no package to scann/a
• Live reliabilityremote reachable in 1327ms20/20
• Tool poisoning11 tool descriptions checked15/15
• Auth qualityopen endpoint, read-only tools10/15
• Maintenancerepository not readable: repo not found3/15
• Maintainer identityno repository or website to verify2/10

Country Calling Codes: common questions

Is Country Calling Codes MCP server safe?

With care: it is graded C, so read the findings first (67/100). Read the Country Calling Codes safety report

How do I install Country Calling Codes?

It runs remotely at www.countrycalling.codes. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.

Does Country Calling Codes need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is Country Calling Codes maintained?

The latest release is v1.4.0.

Is Country Calling Codes up?

100% of our last 6 checks got an answer. We check remote servers about four times a day.