HTTP/1.1 402 PAYMENT REQUIRED · Agentic Finance (AIFI) · x402 + MPP dual-stack 500+ tools · 12 rails · 0% seller fee
Agent402 / tools / skill-world-data

Skill: World Bank country data

$0.080 per call · USDC via x402 · POST /api/skill/world-data

Bundled execution of the World Bank country data workflow - GDP and population for a country - two key World Bank indicators in one call. One x402 payment runs 3 underlying tools (world-bank-indicator, world-bank-indicator, world-bank-indicator); partial-success per step.

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Input

FieldTypeDescription
country *stringISO 3166-1 alpha-2 country code (e.g. US, GB, JP)

Example output

{
  "pack": "world-data",
  "args": {
    "country": "US"
  },
  "steps": [
    {
      "slug": "world-bank-indicator",
      "ok": true,
      "result": {}
    },
    {
      "slug": "world-bank-indicator",
      "ok": true,
      "result": {}
    },
    {
      "slug": "world-bank-indicator",
      "ok": true,
      "result": {}
    }
  ],
  "summary": "3/3 steps succeeded"
}

Try it - see the 402 challenge (free)

curl -i -X POST https://agent402.tools/api/skill/world-data \
  -H "Content-Type: application/json" \
  -d '{"country":"US"}'

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/skill/world-data", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "country": "US"
  }),
});
Wallet-only. This tool reaches the network/browser/storage, so it is paid in USDC via x402 (no proof-of-work tier).

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