# USD to KRW Currency Converter (api.x402node.dev)

> USD to KRW Currency Converter (api.x402node.dev) is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).

Converts a specified USD amount to Korean Won using the live exchange rate, returning the converted value and rate metadata.

## Facts

- Endpoint: GET https://api.x402node.dev/forex/convert/usd/krw/usd-krw
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/usd-to-krw-currency-converter-api-x402node-dev-d491125b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cY9F3sUOdYq7Q3q6lpjbw

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability usd-to-krw-currency-converter-api-x402node-dev-d491125b
```

Example prompt: How much is 350 US dollars in Korean Won right now? Give me the live converted amount.

## When to prefer this

Use this endpoint when you need to convert a specific USD dollar amount to Korean Won using the live forex rate, and you want both the rate and the computed result in one call. Prefer this over a rate-only endpoint when you need the actual converted value, not just the rate.

## Known failure modes

- Missing or invalid ?amount parameter may return an error or default to a base amount
- Rate data may be stale if the underlying forex source is delayed
- Non-numeric amount values will likely produce a 400 or parsing error
- Service unavailability or payment failure (x402 protocol) returns no data

## How this service works

Convert USD to KRW at live rate. Pass ?amount=100 for value in Korean Won. 美元兑换韩元换算。米ドルをウォンに換算。Convertir dólar a won. 달러를 원로 환전. usd to krw convert. Accepts payment on Base or Solana — either network works.

## Output

Returns a JSON object with: 'from' (USD), 'to' (KRW), 'rate' (current USD/KRW exchange rate as a number), 'amount' (the input USD value), 'result' (the converted KRW value), 'as_of' (timestamp of rate), and 'source' (data provider name).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "amount"
     ],
     "properties": {
      "amount": {
       "type": "string",
       "description": "要换算的金额，如 ?amount=100"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/usd-to-krw-currency-converter-api-x402node-dev-d491125b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402node.dev](https://www.zero.xyz/host/api.x402node.dev/llms.txt)