# ARB to USD Live Price Converter

> ARB to USD Live Price Converter 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 given amount of Arbitrum (ARB) tokens to US Dollars at the current live market price

## Facts

- Endpoint: GET https://api.x402node.dev/crypto/convert/arb/usd/arb-usd
- 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/arb-to-usd-live-price-converter-662e3f38
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Yj3kLIk65xWe5mxT0jg86

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 arb-to-usd-live-price-converter-662e3f38
```

Example prompt: How much is 10 ARB worth in US dollars right now?

## When to prefer this

Use this endpoint when you need a quick, single-call conversion of ARB (Arbitrum) to USD at live market prices, especially in pay-per-call contexts where you want minimal overhead. Prefer this over generic aggregators when you specifically need ARB/USD and want a structured JSON response with source attribution and timestamp.

## Known failure modes

- Invalid or missing amount parameter may return an error or default to 1
- External price feed unavailable causing stale or failed response
- Network timeout if upstream price source is slow
- Non-numeric amount value causing a 400 or parse error

## How this service works

Convert ARB to USD at live price. Pass ?amount=1 for value in US Dollar. Arbitrum兑换美元换算。アービトラムを米ドルに換算。Convertir Arbitrum a dólar. 아비트럼를 달러로 환전. arb to usd, Arbitrum convert. Accepts payment on Base or Solana — either network works.

## Output

Returns the converted USD result for the given ARB amount, including the exchange rate used (price), the amount input, the calculated result in USD, the timestamp of the quote (as_of), and the data source — all in a single JSON response.

## 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": "要换算的数量，如 ?amount=1"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/arb-to-usd-live-price-converter-662e3f38/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)