Country info

Country facts by name or ISO code: official name, capital, region, currencies, languages, timezones, dialing code, TLD, and more. Committed open dataset (world-countries, ODbL, plus the IANA timezone country map) — offline and deterministic. ?name=Japan or ?code=JP

Input

Field	Type	Description
name	string	country name (common or official), e.g. Japan
code	string	alternative: ISO 3166-1 alpha-2 or alpha-3 code, e.g. JP or JPN

Example output

{
  "query": "Japan",
  "found": true,
  "matches": 1,
  "country": {
    "name": "Japan",
    "officialName": "Japan",
    "code2": "JP",
    "code3": "JPN",
    "capital": "Tokyo",
    "region": "Asia",
    "subregion": "Eastern Asia",
    "currencies": [
      {
        "code": "JPY",
        "name": "Japanese yen",
        "symbol": "¥"
      }
    ],
    "languages": [
      "Japanese"
    ],
    "timezones": [
      "Asia/Tokyo"
    ],
    "callingCode": "+81",
    "tld": ".jp",
    "demonym": "Japanese",
    "flag": "🇯🇵",
    "latlng": [
      36,
      138
    ],
    "area": 377930,
    "landlocked": false,
    "borders": [],
    "unMember": true
  }
}

Try it — see the 402 challenge (free)

curl -i "https://agent402.tools/api/country-info?name=Japan"

The response is HTTP 402 Payment Required with exact payment requirements. Any x402 v2 client pays automatically and retries:

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/country-info?name=Japan");

No wallet? Pay with compute

This is a pure-CPU tool, so an agent without a wallet can pay with proof-of-work instead of USDC: fetch a challenge, solve the sha256 puzzle (16 leading zero bits — a fraction of a second of CPU, no money, no AI tokens), and resend with the X-Pow-Solution header.

import { createHash } from "node:crypto";
const lz = (b) => { let t = 0; for (const x of b) { if (!x) { t += 8; continue; } t += Math.clz32(x) - 24; break; } return t; };
const c = await (await fetch("https://agent402.tools/api/pow/challenge?slug=country-info")).json();
let n = 0;
while (lz(createHash("sha256").update(c.challenge + ":" + n).digest()) < c.difficulty) n++;
await fetch("https://agent402.tools/api/country-info", { method: "GET", headers: { "X-Pow-Solution": c.token + ":" + n } });

Part of these workflows

This tool is one step in a curated multi-tool workflow — agents can fetch the whole sequence as an MCP prompt or call https://agent402.tools/api/skill-packs/{slug}/prompt.

• Locale brief — "Can I reach this counterparty this week?" — country facts, this year's public holidays, working days remaining this week, and what time it is there right now, in one call.

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