# Nova Crypto Prices

> Nova Crypto Prices is a paid API for AI agents from nova-crypto-prices.nova-data.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Returns real-time prices for BTC, ETH, and SOL sourced from CoinGecko, gated by x402 micropayment on Base Mainnet.

## Facts

- Endpoint: GET https://nova-crypto-prices.nova-data.workers.dev/prices?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nova-crypto-prices-9830d44e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_arOSSjWzogdpBTP7xFLZx

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 nova-crypto-prices-9830d44e
```

Example prompt: What are the current prices of Bitcoin, Ethereum, and Solana in JSON format?

## When to prefer this

Choose this endpoint when you need real-time spot prices for the three major cryptocurrencies (BTC, ETH, SOL) specifically, and you are operating in an x402-enabled micropayment context on Base Mainnet. It is ideal for agents that need lightweight, low-cost price lookups without requiring a full exchange or trading API integration. Best suited for portfolio valuation, alerting, or dashboard data feeds where only these three assets are needed.

## Known failure modes

- Payment not provided or invalid x402 payment header — returns 402 Payment Required
- Invalid format parameter — only 'json' is supported
- CoinGecko upstream unavailable — may return 503 or stale/empty data
- Rate limiting or quota exceeded on underlying CoinGecko API

## How this service works

Real-time crypto prices (BTC/ETH/SOL) via CoinGecko. x402-gated API on Base Mainnet.

## Output

A JSON object containing real-time price data for Bitcoin (BTC), Ethereum (ETH), and Solana (SOL), sourced from CoinGecko. Prices are returned in a structured JSON format suitable for downstream calculations or display.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "format": {
   "enum": [
    "json"
   ],
   "type": "string",
   "description": "Response format (only 'json' supported)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nova-crypto-prices-9830d44e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nova-crypto-prices.nova-data.workers.dev](https://www.zero.xyz/host/nova-crypto-prices.nova-data.workers.dev/llms.txt)