# Aave Top of Order Book

> Aave 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 2026-10-02).

Returns the best bid and ask prices from the Coinbase Exchange public order book for the AAVE-USD trading pair

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/demand-market-aave-orderbook-top?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/aave-top-of-order-book-ba0cdc89
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_W53zfpjxyaQn808Vmd9Nh

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 aave-top-of-order-book-ba0cdc89 -d '<json body>'
```

Example prompt: What's the current best bid and ask for AAVE-USD on Coinbase? I want to see the top of the order book right now.

## When to prefer this

Choose this endpoint when you need a fast, low-cost real-time snapshot of the best bid and ask for AAVE-USD specifically, without needing the full order book depth. Ideal for pre-trade price checks, spread monitoring, and lightweight market data integrations that don't require Level 2 depth data.

## Known failure modes

- Invalid product ID returns an error or empty result
- Network timeout if Coinbase Exchange data feed is unavailable
- Stale data if the endpoint is not refreshed in real time
- Payment failure if $0.01 USDC is not available via x402 protocol

## How this service works

Aave Top of order book: Return the best bid and ask levels from the public order book. Coinbase Exchange public USD market data; not investment advice.

## Output

Returns the best (top) bid price and best (top) ask price from the Coinbase Exchange public order book for the specified product (default AAVE-USD), giving a real-time snapshot of the tightest available buy and sell prices and the implied spread.

## Request schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/aave-top-of-order-book-ba0cdc89/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)