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ADH Countries Master — ISO Country Reference Data
x402
ADH Countries Master — ISO Country Reference Data is a paid API for AI agents from agentdatum.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).
Returns a master list of all ~250 countries with ISO codes, currencies, borders, geography, languages, and UN membership status
Price / call$0.01
Success—
StatusUnknown
How this service works
ADH 金融情报层：把 239 个原始数据源洗成带实体解析、时间同步、溯源与派生结论的情报（宏观regime / 加密尽调 / 事件窗口），免费注入你的 AI 上下文。Agent 走 x402 结算，人类订阅（PayPal）即将上线。
Output
A JSON object containing an array of ~250 country records, each with fields: tld, cca2, cca3, name, official_name, latlng, region, subregion, borders (array of neighboring country codes), capital, area_km2, unMember (boolean), languages (array), currencies (array), landlocked (boolean). Also includes a top-level count field and source/collection metadata. Sourced from mledoze/countries and positioned as a drop-in replacement for the deprecated restcountries v3.1 API.
Example use cases
Populating a country selector dropdown
“Fetch all countries with their ISO codes, official names, and TLDs so I can build a country picker for our signup form.”
Currency-to-country mapping for fintech app
“Get the master country list so I can map every ISO alpha-3 country code to its currency or currencies for our payment routing logic.”
Validating geopolitical border data
“Pull the complete countries dataset including border arrays and region/subregion fields — I want to cross-check which countries share borders with each other for a geopolitical analysis.”
Technical details
Endpoint
GEThttps://agentdatum.com/api/v1/d/countries-master?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, all-in-one country reference dataset with ISO codes, currencies, borders, languages, and geo-coordinates in a single call. It is a direct replacement for the deprecated restcountries v3.1 API and suits agents that pay per-call via x402 USDC micropayments rather than maintaining an API subscription. Prefer it over building your own scraper or maintaining a static CSV when freshness and entity resolution matter.
Side effects
- Payment failure (402): x402 micropayment not settled — agent must complete USDC payment flow before data is returned
- Rate limiting or quota exceeded if called in rapid succession
- Stale data: collected_at timestamp may lag real-world geopolitical changes (e.g. newly recognized states)
- Empty or partial response if upstream dataset source is unavailable
Output
Schema · Response
{
"type": "json",
"example": {
"raw": {
"data": [
{
"tld": ".aw",
"cca2": "AW",
"cca3": "ABW",
"name": "Aruba",
"latlng": [
12.5,
12.5
],
"region": "Americas",
"borders": [],
"capital": "Oranjestad",
"area_km2": 180,
"unMember": false,
"languages": [
"Dutch",
"Dutch"
],
"subregion": "Caribbean",
"currencies": [
"AWG"
],
"landlocked": false,
"official_name": "Aruba"
},
{
"tld": ".aw",
"cca2": "AW",
"cca3": "ABW",
"name": "Aruba",
"latlng": [
12.5,
12.5
],
"region": "Americas",
"borders": [],
"capital": "Oranjestad",
"area_km2": 180,
"unMember": false,
"languages": [
"Dutch",
"Dutch"
],
"subregion": "Caribbean",
"currencies": [
"AWG"
],
"landlocked": false,
"official_name": "Aruba"
}
],
"countries": 250
},
"note": "Replaces the deprecated restcountries v3.1 API; ISO codes, currencies, borders, geo.",
"source": "mledoze/countries",
"data_type": "地理",
"collected_at": "2026-08-09T18:40:48Z"
}
}Tags
x402
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