# Country Calling Codes (remote · www.countrycalling.codes)

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

- Trust score: 72/100 (medium)
- Change this week: +4
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-20

## Components

- remote · `www.countrycalling.codes`: 72/100 (this document), [markdown](https://verifymcp.io/servers/kajdep-countrycallingcodesmcp/api-mcp-2.md), [page](https://verifymcp.io/servers/kajdep-countrycallingcodesmcp/api-mcp-2)

## Channel facts

- Endpoint: `https://www.countrycalling.codes/api/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.4.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-20.

- **Endpoint Security**: 80/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - The HSTS (Strict-Transport-Security) header is present.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 43/100
  - 0% of prompts and resources have a non-trivial description (not blank, and not just the item's name).
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 829 tokens (~63/item across 13 items; 11 tools + 2 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 40/100
  - Stability observed for 12 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 78/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 22% of tool parameters carry a description.
  - Structured output schemas are declared (100% of tools); any adoption earns full credit.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 11 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 12 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Country Calling Codes MCP server?

Country Calling Codes is a hosted endpoint at https://www.countrycalling.codes/api/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http kajdep-countrycallingcodesmcp 'https://www.countrycalling.codes/api/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "kajdep-countrycallingcodesmcp": {
      "url": "https://www.countrycalling.codes/api/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "kajdep-countrycallingcodesmcp": {
      "type": "http",
      "url": "https://www.countrycalling.codes/api/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.kajdep-countrycallingcodesmcp]
url = "https://www.countrycalling.codes/api/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "kajdep-countrycallingcodesmcp": {
      "type": "remote",
      "url": "https://www.countrycalling.codes/api/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add kajdep-countrycallingcodesmcp --url 'https://www.countrycalling.codes/api/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  kajdep-countrycallingcodesmcp:
    url: "https://www.countrycalling.codes/api/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "kajdep-countrycallingcodesmcp": {
      "Transport": "http",
      "Url": "https://www.countrycalling.codes/api/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add kajdep-countrycallingcodesmcp -t streamable-http -u 'https://www.countrycalling.codes/api/mcp'
```

### Other

```json
{
  "mcpServers": {
    "kajdep-countrycallingcodesmcp": {
      "type": "http",
      "url": "https://www.countrycalling.codes/api/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-20 (score 72, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 71, +1)

No change was recorded against any check on this day. Stability & Change Management went from 30 to 33. That category is still filling its 30-day observation window: 9 days of observed history at the previous scan, 10 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 70, +1)

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-14 (score 69, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-12 (score 68, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-10 (score 67, +1)

No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-09 (score 66, 0)

- [functional improvement] Stability: unverified → 0.03

### 2026-09-08 (score 66)

First indexed and scored.

## MCP tools (11)

### `get_phone_capabilities` (~47 tokens)

Phone capabilities

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

Input parameters:

- `countryCode` (string)
- `operation` (string)

Output parameters:

- `limitations` (array)
- `meta` (object)
- `result` (object)

### `analyze_phone_number` (~74 tokens)

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.

Input parameters:

- `detail` (string)
- `numberCountryCode` (string)
- `originCountryCode`
- `phoneNumber` (string, required)

Output parameters:

- `limitations` (array)
- `meta` (object)
- `result` (object)

### `get_dialing_instructions` (~88 tokens)

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.

Input parameters:

- `carrierSelectionCode` (string)
- `destinationCountryCode` (required)
- `detail` (string)
- `device` (string)
- `originCountryCode` (string, required)
- `phoneNumber` (string)

Output parameters:

- `limitations` (array)
- `meta` (object)
- `result` (object)

### `normalize_phone_numbers` (~39 tokens)

Normalize phone batch

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

Output parameters:

- `limitations` (array)
- `meta` (object)
- `result` (object)

### `compare_phone_numbers` (~57 tokens)

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.

Input parameters:

- `extensionPolicy` (string)
- `left` (object, required)
- `right` (required)

Output parameters:

- `limitations` (array)
- `meta` (object)
- `result` (object)

### `resolve_phone_region` (~66 tokens)

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.

Input parameters:

- `detail` (string)
- `numberCountryCode` (string)
- `originCountryCode`
- `phoneNumber` (string, required)

Output parameters:

- `limitations` (array)
- `meta` (object)
- `result` (object)

### `get_phone_input_rules` (~49 tokens)

Phone input guidance

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

Input parameters:

- `countryCode` (string, required)
- `locale` (string)

Output parameters:

- `limitations` (array)
- `meta` (object)
- `result` (object)

### `diagnose_dialing_problem` (~88 tokens)

Diagnose dialing format

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

Input parameters:

- `destinationCountryCode`
- `detail` (string)
- `device` (string)
- `numberCountryCode` (string)
- `originCountryCode`
- `phoneNumber` (string, required)
- `symptom` (string)

Output parameters:

- `limitations` (array)
- `meta` (object)
- `result` (object)

### `find_calling_windows` (~40 tokens)

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.

Output parameters:

- `limitations` (array)
- `meta` (object)
- `result` (object)

### `lookup_country_calling_code` (~176 tokens)

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.

Input parameters:

- `code` (string): ISO 3166-1 alpha-2 or alpha-3 code, such as GB or GBR.
- `dialCode` (string): Calling code with or without plus sign, such as +44 or 44.
- `includeExamples` (boolean): When true, include reviewed safe mobile/landline patterns, transformation rules, source URLs, and lastVerified metadata.
- `limit` (integer): Maximum number of countries to return.
- `q` (string): Free-text search, such as "United Kingdom", "London", or "AUS".
- `region` (string): Optional region filter.

Output parameters:

- `countries` (array)
- `meta` (object)
- `query` (object)

### `format_international_phone_number` (~97 tokens)

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.

Input parameters:

- `countryCode` (string): Optional ISO 3166-1 alpha-2 country context, such as GB.
- `phoneNumber` (string, required): Phone number to format. It is processed ephemerally and is not stored.

Output parameters:

- `limitations` (array)
- `meta` (object)
- `result` (object)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/kajdep-countrycallingcodesmcp/api-mcp-2#diagnostics

## Score history

- 2026-09-20: 72
- 2026-09-19: 71
- 2026-09-18: 71
- 2026-09-17: 70
- 2026-09-16: 70
- 2026-09-15: 69
- 2026-09-14: 69
- 2026-09-13: 68
- 2026-09-12: 68
- 2026-09-11: 67
- 2026-09-10: 67
- 2026-09-09: 66
- 2026-09-08: 66

## Common questions

### What is the Country Calling Codes MCP server?

Country Calling Codes is an MCP server listed in the public MCP registry as io.github.Kajdep/countrycallingcodesmcp. Calling codes, phone analysis, dialing guidance, batch normalization and calling windows. This page covers its hosted endpoint (https://www.countrycalling.codes/api/mcp).

### Is the Country Calling Codes MCP server safe to use?

Country Calling Codes scores 72 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Country Calling Codes MCP server expose?

Country Calling Codes exposes 11 tools: get_phone_capabilities, analyze_phone_number, get_dialing_instructions, normalize_phone_numbers, compare_phone_numbers, and 6 more. Their descriptions and schemas cost roughly 821 tokens of context every time the server is loaded.

### Does the Country Calling Codes MCP server require authentication?

No. We connected to Country Calling Codes without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Country Calling Codes MCP server still maintained?

Country Calling Codes is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://www.countrycalling.codes/api/mcp
- Repository: https://github.com/Kajdep/v0-countrycallingcodes
- Website: https://www.countrycalling.codes/developers#mcp
- Changelog RSS feed: https://verifymcp.io/servers/kajdep-countrycallingcodesmcp/api-mcp-2.xml
- Changelog JSON feed: https://verifymcp.io/servers/kajdep-countrycallingcodesmcp/api-mcp-2.json
- HTML version of this page: https://verifymcp.io/servers/kajdep-countrycallingcodesmcp/api-mcp-2