# Bittensor Top of Order Book

> Bittensor Top of Order Book is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).

Returns the top-of-book bid and ask data for Bittensor (TAO-USD) from Coinbase Exchange public market data.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/pulse-market-bittensor-orderbook-top?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/bittensor-top-of-order-book-df5f3b1b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IPnHdUeUFthPZGzroitHk

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 bittensor-top-of-order-book-df5f3b1b -d '<json body>'
```

Example prompt: What's the current top of the order book for Bittensor — give me the best bid and ask prices for TAO-USD right now.

## When to prefer this

Use this endpoint when you need a lightweight, real-time snapshot of just the top-of-book (best bid/ask) for Bittensor TAO-USD without needing full order book depth. Ideal for quick pre-trade price checks, spread monitoring, or arbitrage comparisons. It accepts an overrideable product ID, making it reusable for other Coinbase USD pairs.

## Known failure modes

- Invalid product ID returns an error or empty response
- Coinbase Exchange API unavailability causes failure
- Rate limiting or payment failure (x402) blocks the request
- Network timeout if Coinbase upstream is slow

## How this service works

Bittensor Top of order book: Top of order book for Bittensor (TAO-USD) from Coinbase Exchange public USD market data. The product ID can be overridden; data only, not investment advice.

## Output

Returns the top-of-book order book snapshot for TAO-USD (or overridden product), including the best bid price, best bid size, best ask price, and best ask size from Coinbase Exchange public market data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "product": {
   "type": "string",
   "default": "TAO-USD",
   "description": "Coinbase USD product ID; defaults to ADA-USD."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/bittensor-top-of-order-book-df5f3b1b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)