# 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, $0.005/call, status unknown (last checked 2026-10-19).

Returns real-time price data for BTC, ETH, or SOL fetched via CoinGecko, gated by x402 micropayment on Base Mainnet.

## Facts

- Endpoint: POST https://nova-crypto-prices.nova-data.workers.dev/prices/:coin?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nova-crypto-prices-9b4180a6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LvkJoNlMo5uWhExnl6b5G

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-9b4180a6 -d '<json body>'
```

Example prompt: What's the current price of Bitcoin right now? Use the Nova Crypto Prices feed to pull a live quote.

## When to prefer this

Choose this endpoint when you need a quick, low-cost real-time price lookup for BTC, ETH, or SOL and are operating in an x402-enabled micropayment environment on Base Mainnet. Prefer it over full market data APIs when you only need a spot price for one of the three supported coins and want per-call pricing rather than a subscription.

## Known failure modes

- Unsupported coin symbol returns an error (only BTC, ETH, SOL supported)
- Payment failure or invalid x402 payment token causes 402 rejection
- CoinGecko upstream outage may cause stale or missing data
- Rate limiting if micropayment is not properly attached
- Invalid coin path parameter returns 404 or bad request

## How this service works

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

## Output

Returns the current USD price of the requested cryptocurrency (BTC, ETH, or SOL) sourced from CoinGecko, typically including the coin identifier and latest market price.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nova-crypto-prices-9b4180a6/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)