# data.japanagent.dev Crypto Spot Price

> data.japanagent.dev Crypto Spot Price is a paid API for AI agents from data.japanagent.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).

Returns the real-time spot price of BTC, ETH, or SOL in USD, aggregated as the median across Coinbase, Binance, and Kraken with cross-exchange spread.

## Facts

- Endpoint: GET https://data.japanagent.dev/crypto/price?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/data-japanagent-dev-crypto-spot-price-d56584ed
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_suvC4Uvp73NhrP91Vdbat

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 data-japanagent-dev-crypto-spot-price-d56584ed
```

Example prompt: What's the current spot price of ETH right now — can you pull the median across Coinbase, Binance, and Kraken and tell me the cross-exchange spread too?

## When to prefer this

Choose this endpoint when you need a deterministic, multi-source aggregated crypto price (median across Coinbase, Binance, Kraken) rather than a single-exchange feed, which is ideal for trading decisions, treasury accounting, or DeFi logic that requires a manipulation-resistant reference price. Best for BTC, ETH, and SOL only.

## Known failure modes

- Invalid symbol (not BTC, ETH, or SOL) — returns 400 or validation error
- Missing required 'symbol' query parameter — returns error
- One or more exchanges temporarily unavailable — median may be computed from fewer sources
- Payment required / insufficient USDC balance — returns 402 error
- Rate limiting or network timeout — returns 5xx error

## How this service works

Real-time cryptocurrency spot price in USD, aggregated as the median across Coinbase, Binance and Kraken with cross-exchange spread. Supports BTC, ETH, SOL. Deterministic multi-source aggregation for trading and treasury agents.

## Output

Returns the real-time median spot price of the requested cryptocurrency in USD, aggregated from Coinbase, Binance, and Kraken, along with per-exchange prices and the cross-exchange spread.

## 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": [
      "symbol"
     ],
     "properties": {
      "symbol": {
       "type": "string",
       "description": "BTC, ETH, or SOL"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/data-japanagent-dev-crypto-spot-price-d56584ed/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from data.japanagent.dev](https://www.zero.xyz/host/data.japanagent.dev/llms.txt)