# J-sey Data API - Token Price

> J-sey Data API - Token Price is a paid API for AI agents from johncross-data-api.johncrossugwuegede.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Returns the current market price of a cryptocurrency token by querying a pay-per-call data API priced in USDC.

## Facts

- Endpoint: GET https://johncross-data-api.johncrossugwuegede.workers.dev/token-price
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/j-sey-data-api-token-price-6540f2f0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IYMmcZZNMVMTiGYgpz4ei

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 j-sey-data-api-token-price-6540f2f0
```

Example prompt: What's the current price of ETH right now? Use the J-sey Data API token-price endpoint to look it up.

## When to prefer this

Use this endpoint when you need a quick, lightweight, pay-per-call token price lookup across EVM-compatible networks, especially when you want to avoid subscription-based pricing and only pay per query in USDC via x402 protocol.

## Known failure modes

- Invalid or unrecognized token symbol returns an error or empty result
- Payment not processed correctly results in 402 response
- Token not supported by the API returns an error
- Network or upstream data source unavailable causes a timeout or 503
- Missing required query parameter causes a 400 bad request

## How this service works

18-endpoint pay-per-call data API. USDC on 10 EVM networks.

## Output

Returns the current market price of the requested token, likely including the token symbol and its price denominated in USD or a reference currency.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "symbol"
   ],
   "properties": {
    "symbol": {
     "type": "string",
     "example": "bitcoin",
     "description": "CoinGecko id"
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "result": {
     "type": "object",
     "description": "Endpoint response payload"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/j-sey-data-api-token-price-6540f2f0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from johncross-data-api.johncrossugwuegede.workers.dev](https://www.zero.xyz/host/johncross-data-api.johncrossugwuegede.workers.dev/llms.txt)