Country Calling Codes
REMOTE · WWW.COUNTRYCALLING.CODES
Calling codes, phone analysis, dialing guidance, batch normalization and calling windows.
Available components
Last scanned (17 hours ago)
Scores higher than 81% of remote servers
Reachable. Last reached 4 Nov 2026.
Category Communication
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. How we score → Why this is hard to score →
Endpoint Security80
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability43
- 0% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Fail
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 829 tokens (~63/item across 13 items; 11 tools + 2 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management97
- Stability observed for 29 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage78
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 22% of tool parameters carry a description.Partial
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 11 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 12 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 0
- Stability: pass → 0.97 functional
- 10 Oct 26 0
- Stability: 0.97 → pass security
- 7 Oct 26 +2
No change was recorded against any check on this day. Stability & Change Management went from 87 to 97. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 28 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 9 Sept 26 0
- Stability: unverified → 0.03 ▲ functional
- 8 Sept 26 0
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 4 Nov 2026 · Probed https://www.countrycalling.codes/api/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=countrycalling.codes | CN=YE2,O=Let's Encrypt,C=US | 19 Sept 2026 | 18 Dec 2026 | ECDSA 256 | ECDSA-SHA384 | 58e432a91cb2387524ad819af1ceb1d7680 |
| SANs: *.countrycalling.codes, countrycalling.codes | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of www.countrycalling.codes. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| codes. | present | 32212 | 8 | Verified |
| countrycalling.codes. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| strict-transport-security | max-age=63072000 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://www.countrycalling.codes/api/mcp | Verified | 200 | |
| http (plaintext) | http://www.countrycalling.codes/api/mcp | HTTPS enforced | 308 | https://www.countrycalling.codes/api/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
analyze_phone_number Analyze phone number ~74
Analyze a number using versioned numbering metadata. National numbers need numberCountryCode; exit prefixes need originCountryCode. Reports uncertainty and rule evidence, never live subscriber status.
| Name | Type | Req | Description |
|---|---|---|---|
| detail | string | – | – |
| numberCountryCode | string | – | – |
| originCountryCode | – | – | – |
| phoneNumber | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| limitations | array | yes | – |
| meta | object | yes | – |
| result | object | yes | – |
No examples provided.
compare_phone_numbers Compare phone numbers ~57
Compare two numbers after analysis. Missing context produces indeterminate. Extensions must match unless extensionPolicy is explicitly ignore; equality does not establish ownership.
| Name | Type | Req | Description |
|---|---|---|---|
| extensionPolicy | string | – | – |
| left | object | yes | – |
| right | – | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| limitations | array | yes | – |
| meta | object | yes | – |
| result | object | yes | – |
No examples provided.
diagnose_dialing_problem Diagnose dialing format ~88
Explain formatting issues and propose reviewed prefix repairs for confirmation. Uses the same analyzer. Cannot determine why a network rejected a call.
| Name | Type | Req | Description |
|---|---|---|---|
| destinationCountryCode | – | – | – |
| detail | string | – | – |
| device | string | – | – |
| numberCountryCode | string | – | – |
| originCountryCode | – | – | – |
| phoneNumber | string | yes | – |
| symptom | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| limitations | array | yes | – |
| meta | object | yes | – |
| result | object | yes | – |
No examples provided.
find_calling_windows Find calling windows ~40
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.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| limitations | array | yes | – |
| meta | object | yes | – |
| result | object | yes | – |
No examples provided.
format_international_phone_number Format International Phone Number ~97
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.
| Name | Type | Req | Description |
|---|---|---|---|
| countryCode | string | – | Optional ISO 3166-1 alpha-2 country context, such as GB. |
| phoneNumber | string | yes | Phone number to format. It is processed ephemerally and is not stored. |
| Name | Type | Req | Description |
|---|---|---|---|
| limitations | array | yes | – |
| meta | object | yes | – |
| result | object | yes | – |
No examples provided.
get_dialing_instructions Dialing instructions ~88
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.
| Name | Type | Req | Description |
|---|---|---|---|
| carrierSelectionCode | string | – | – |
| destinationCountryCode | – | yes | – |
| detail | string | – | – |
| device | string | – | – |
| originCountryCode | string | yes | – |
| phoneNumber | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| limitations | array | yes | – |
| meta | object | yes | – |
| result | object | yes | – |
No examples provided.
get_phone_capabilities Phone capabilities ~47
Discover supported countries, per-operation review coverage, evidence, dataset versions and request limits before choosing a phone workflow.
| Name | Type | Req | Description |
|---|---|---|---|
| countryCode | string | – | – |
| operation | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| limitations | array | yes | – |
| meta | object | yes | – |
| result | object | yes | – |
No examples provided.
get_phone_input_rules Phone input guidance ~49
Get reviewed display placeholders and trunk-prefix guidance. Examples are not validation masks. English fallback and unsupported editorial coverage are explicit.
| Name | Type | Req | Description |
|---|---|---|---|
| countryCode | string | yes | – |
| locale | string | – | – |
| Name | Type | Req | Description |
|---|---|---|---|
| limitations | array | yes | – |
| meta | object | yes | – |
| result | object | yes | – |
No examples provided.
lookup_country_calling_code Lookup Country Calling Code ~176
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.
| Name | Type | Req | Description |
|---|---|---|---|
| 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. |
| Name | Type | Req | Description |
|---|---|---|---|
| countries | array | yes | – |
| meta | object | yes | – |
| query | object | yes | – |
No examples provided.
normalize_phone_numbers Normalize phone batch ~39
Normalize up to 100 records with unique IDs. Invalid records produce individual errors. Optionally identify canonical duplicate candidates; no contacts are changed or stored.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| limitations | array | yes | – |
| meta | object | yes | – |
| result | object | yes | – |
No examples provided.
resolve_phone_region Resolve phone region ~66
Resolve a phone number to metadata-backed country candidates or non-geographic numbering. Results are numbering assignments, not current location or carrier.
| Name | Type | Req | Description |
|---|---|---|---|
| detail | string | – | – |
| numberCountryCode | string | – | – |
| originCountryCode | – | – | – |
| phoneNumber | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| limitations | array | yes | – |
| meta | object | yes | – |
| result | object | yes | – |
No examples provided.
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.
remote · www.countrycalling.codes
claude mcp add --transport http kajdep-countrycallingcodesmcp 'https://www.countrycalling.codes/api/mcp'
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 80 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 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.