# Japanese Crypto Ticker (BTC/ETH/XRP in JPY and USD)

> Japanese Crypto Ticker (BTC/ETH/XRP in JPY and USD) is a paid API for AI agents from x402-ja-api.onrender.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Returns real-time cryptocurrency price data for BTC, ETH, or XRP in both JPY (aggregated across Japanese exchanges) and USD, including FX rate and JPY premium/discount.

## Facts

- Endpoint: GET https://x402-ja-api.onrender.com/v1/jp/crypto/ticker
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/japanese-crypto-ticker-btc-eth-xrp-in-jpy-and-usd-605e2fbb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Q4XhsnntTQUAGRjnx_ynQ

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 japanese-crypto-ticker-btc-eth-xrp-in-jpy-and-usd-605e2fbb
```

Example prompt: What's the current Bitcoin price in Japanese yen right now — pull quotes from Japanese exchanges like Bitflyer and Coincheck and also show me the USD price and FX rate?

## When to prefer this

Choose this endpoint when you need real-time cryptocurrency prices specifically from Japanese exchanges (Bitflyer, Coincheck) in JPY, want to detect JPY premium/discount vs USD, or need combined FX + crypto data in a single call. Prefer over generic crypto APIs when Japan-specific market data, multi-exchange JPY aggregation, or kimchi-premium-style analysis is needed. Pay-per-call via x402 USDC with no API key required makes it suitable for agent workflows.

## Known failure modes

- Unsupported symbol requested (only BTC, ETH, XRP accepted) — returns validation error
- Upstream exchange APIs unavailable — errors array populated, partial data returned
- FX rate source unavailable — usdJpy field missing or stale
- Payment not provided or insufficient — HTTP 402 response requiring x402 USDC payment
- Network timeout to Japanese exchange APIs — delayed or empty quotes array

## How this service works

Calendar and Japan data APIs for AI agents: worldwide holidays and business days (200+ countries), plus Japanese text-to-structure (address, name, bank, company normalization). Pay per call in USDC via x402, no API key.

## Output

Returns a JSON object with: JPY quotes from multiple Japanese exchanges (bid, ask, last, volume24h, timestamp per exchange), aggregate JPY stats (min, max, median, dispersion), USD price from Coinbase, USD/JPY FX rate with source and timestamp, calculated JPY premium/discount vs USD implied rate, and the symbol queried.

## 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",
     "properties": {
      "symbol": {
       "enum": [
        "BTC",
        "ETH",
        "XRP"
       ],
       "type": "string",
       "default": "BTC"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "fx": {
   "asOf": "Sun, 13 Sep 2026 00:02:31 +0000",
   "source": "open.er-api.com",
   "usdJpy": 153.8
  },
  "jpy": {
   "max": 11884688,
   "min": 11873368,
   "median": 11878483,
   "quotes": [
    {
     "ask": 11874000,
     "bid": 11873000,
     "last": 11873368,
     "pair": "BTC_JPY",
     "exchange": "bitflyer",
     "timestamp": "2026-09-13T05:52:14.97",
     "volume24h": 1000
    },
    {
     "ask": 11877000,
     "bid": 11875000,
     "last": 11876006,
     "pair": "btc_jpy",
     "exchange": "coincheck",
     "timestamp": "2026-09-13T05:52:10.000Z",
     "volume24h": 500
    }
   ],
   "dispersion": 0.000953
  },
  "usd": {
   "price": 77280,
   "source": "coinbase"
  },
  "asOf": "2026-09-13T05:52:15.000Z",
  "errors": [],
  "symbol": "BTC",
  "premium": -0.000634,
  "impliedUsdJpy": 153.7
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/japanese-crypto-ticker-btc-eth-xrp-in-jpy-and-usd-605e2fbb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-ja-api.onrender.com](https://www.zero.xyz/host/x402-ja-api.onrender.com/llms.txt)