Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Every country in Arabic and English: names, nationalities, dial codes, phone validation.
These three are never merged into one score: opinions, measurements and popularity are different things.
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
Pick the AI app you use, then copy the settings.
You need
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Pick your app above. We remember it, so next time the button says “Install in …”.
Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json
{
"mcpServers": {
"worldref": {
"command": "npx",
"args": [
"-y",
"worldref",
"mcp"
]
}
}
}Run this in your terminal
claude mcp add worldref -- npx -y worldref mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"worldref": {
"command": "npx",
"args": [
"-y",
"worldref",
"mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Paste into .vscode/mcp.json in your project
{
"servers": {
"worldref": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"worldref",
"mcp"
]
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.
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These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
Runs on your computer; the tool list appears in your AI app after you install it.
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026
The registry name was verified with the GitHub account arj-89, which owns the repo
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
This one runs on your computer; there is no internet endpoint
Runs on your computer and uses local settings instead
Runs on your computer; we can only read tool lists from internet endpoints
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
The registry does not list a required key, though some servers ask you to sign in on first use.
It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).
The GitHub repo last changed –, and the latest version (1.1.2) reached the registry 2 days ago.
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.
In the same category: Spec Driven Development, Remote Desktop Commander, Python MCP
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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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Every country in Arabic, English, or both: names, nationalities, capitals, currencies, languages, time zones, dial codes, phone validation, address formats and subdivisions. One dataset, ready for JSON, CSV, SQL, TypeScript, Python, Swift, Kotlin, Dart, PHP, Go and C#, and for AI agents (MCP).
العربية · Website and search demo · Best practices · Field reference · Data sources
import { countries, search, parsePhone, byIso2 } from "worldref";
byIso2("SA").name_ar; // "السعودية" byIso2("SA").nationality.nationality_ar_f; // "سعودية" search(countries, "الامارات", "ar")[0].iso2; // "AE" (ignores «ال», hamza and tashkeel) parsePhone("٠٥٠١٢٣٤٥٦٧", byIso2("SA")); // { e164: "+966501234567", valid: true, mobile: true, ... }
name_ar, name_en), Arabic-only (name) and English-only (name).data/sources.json. A missing value is null, never a guess or a machine translation.Published on npm, PyPI, pub.dev, Packagist, NuGet and the MCP Registry. Swift, Kotlin and Go install straight from this repository.
| Stack | Install |
|---|---|
| JavaScript, TypeScript (web, Node 20.10+, React Native, Bun, Deno) | npm i worldref |
| CDN (no build step) | https://cdn.jsdelivr.net/npm/worldref@1.1.2/data/worldref.json |
| Swift (iOS, macOS) | Swift Package Manager: https://github.com/arj-89/worldref, from 1.1.2, product WorldRef |
| Kotlin, Android | JitPack: maven("https://jitpack.io"), then implementation("com.github.arj-89:worldref:v1.1.2") |
| Python | pip install worldref |
| Dart, Flutter | dart pub add worldref (Flutter: flutter pub add worldref) |
| PHP, Laravel | composer require arj-89/worldref |
| Go | go get github.com/arj-89/worldref/go@v1.1.2 |
| C#, .NET | dotnet add package WorldRef |
| Any language | JSON, CSV and SQL (Postgres, MySQL, SQLite) in data/ and on the releases page |
| AI agents | MCP server: npx -y worldref mcp (listed in the MCP Registry as io.github.arj-89/worldref) |
| No install | One country: https://arj-89.github.io/worldref/api/v1/sa.json |
Each language folder has its own README with a usage example: python, Swift, kotlin, dart, php, go, csharp.
iso2: core, nationality, phone, currency, geo, locale, address, travel, sports, plus subdivisions. Find them in data/modules/..json (Arabic and English), .ar.json (Arabic only), .en.json (English only). import phone from "worldref/data/modules/phone.json" with { type: "json" };
import { parsePhone } from "worldref/helpers";
- **Other languages:** load only the module files you need. [`data/worldref.json`](data/worldref.json) has everything.
https://arj-89.github.io/worldref/api/v1/{iso2}.json.null (or an empty list). Treat it as unknown; never fill it in.Country picker (user's country first, then alphabetical in the UI language):
import { countries, sortCountries, search } from "worldref";
const list = sortCountries(countries, "ar", "SA"); // السعودية first, then Arabic order const hits = search(countries, userQuery, "ar"); // names, aliases, ISO codes, +966 / 00966 / 966
Show: flag, name in the UI language, then the dial code. In Arabic, isolate the dial code left-to-right (`<bdi dir="ltr">+966</bdi>`).
Phone field (store the international form plus the country the user picked):
const p = parsePhone(input, byIso2(pickedIso2), countries);
if (p?.valid && p.mobile) save({ phone: p.e164, phone_country: p.iso2 });
Nationality field (only rows that have one: countries, plus Taiwan, Hong Kong and Macau):
const options = countries.filter((c) => c.nationality.nationality_en);
const label = (c, female) => (female ? c.nationality.nationality_ar_f : c.nationality.nationality_ar_m);
Database seed: run data/sql/postgres.sql (or mysql.sql, sqlite.sql). It creates countries and subdivisions.
Every rule below is built into the helpers of all eight packages and locked by the shared tests in tests/vectors.json. Use the helpers; if you write your own, follow these rules exactly.
Search (normalize(), search())
Sorting (sortCountries())
sort_ar or sort_en with plain string comparison. Do not use locale collation (Intl.Collator("ar"), localizedStandardCompare): neither ignores «ال», so every «ال» name bunches under ا.Display
+966 , or U+2066 ... U+2069). The data never contains bidi marks.flag_svg on the web: Windows does not draw flag emoji.symbol (the Saudi riyal sign is U+20C1) and fall back to symbol_fallback (ر.س) where the font lacks the new sign.Phone fields (parsePhone(), formatNational())
e164) together with the iso2 the user picked. Shared calling codes (+1, +7, +44, +599...) cannot be read back to one country from the number alone.mobile_pattern. Where mobile_distinguishable is false (US, Canada), do not reject a number for not looking like a mobile.formatNational() (5X XXX XXXX style).Nationality fields
nationality.nationality_en is not null (countries, plus Taiwan, Hong Kong and Macau).nationality_ar_m (سعودي) or nationality_ar_f (سعودية).Data
null (or an empty list) means unknown. Show it as unknown; never fill it from elsewhere.iso2.#v1.1.2, @1.1.2) so names and rules do not change under you.Single-language builds drop the _ar / _en suffix (name_ar becomes name in .ar.json).
| Field | Module | Example (SA) | Meaning |
|---|---|---|---|
iso2 | all | SA | ISO 3166-1 alpha-2 code (XK for Kosovo). The key that joins every module. |
iso3 | core | SAU | ISO 3166-1 alpha-3 code (XKK for Kosovo, as in CLDR). |
iso_numeric | core | 682 | ISO 3166-1 numeric code, as text to keep leading zeros. |
kind | core | country | country (sovereign state, including Palestine, Vatican and Kosovo) or territory. |
name_ar | core | السعودية | Short common name in Arabic. |
name_en | core | Saudi Arabia | Short common name in English. |
official_name_ar | core | المملكة العربية السعودية | Official long name in Arabic, when a source states one. |
official_name_en | core | Kingdom of Saudi Arabia | Official long name in English, when a source states one. |
aliases_ar | core | ["المملكة العربية السعودية","المملكة"... | Other Arabic names people search with. For search only, not display. |
aliases_en | core | ["KSA","Kingdom of Saudi Arabia","Sau... | Other English names people search with. For search only, not display. |
flag | core | 🇸🇦 | Flag emoji (regional indicator pair). Windows does not draw these; use flag_svg on the web. |
flag_svg | core | flags/sa.svg | Path of the 4:3 SVG flag in this package. |
| continent | core | asia | africa, americas, asia, europe or o
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