# Carbon Cashmere Binance L2 Orderbook Microstructure

> Carbon Cashmere Binance L2 Orderbook Microstructure is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-16).

Returns real-time Binance L2 orderbook microstructure metrics (bid/ask imbalance, spread in bps, bid wall ratio, ask wall ratio) for a specified crypto asset.

## Facts

- Endpoint: GET https://api.carbon-cashmere.de/v1/orderbook/:var1
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-carbon-cashmere-de-a5b28610
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jjKz4Ywmr-8m4a6adX_L1

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 api-carbon-cashmere-de-a5b28610
```

Example prompt: Pull the Binance orderbook microstructure for BTC right now — I need the bid/ask volume imbalance, spread in basis points, and both bid and ask wall ratios so I can assess liquidity before entering a position.

## When to prefer this

Use this endpoint when you need real-time, institutional-grade orderbook microstructure signals for one of the 15 supported Binance-listed crypto assets — particularly for market making, order flow analysis, or liquidity assessment use cases where spread in basis points and wall ratios are required. Prefer over generic price endpoints when depth and imbalance data matters.

## Known failure modes

- Unsupported asset symbol returns 404 or error — only 15 supported assets (BTC, ETH, SOL, and 12 others)
- Binance API connectivity issues may cause stale or missing data
- Invalid or missing var1 path parameter returns error
- Rate limiting or payment failure (x402) if USDC not provided
- Temporary Binance exchange downtime causes endpoint failure

## How this service works

Get Binance L2 orderbook microstructure for 15 crypto assets — bid/ask volume imbalance, spread in basis points, bid wall ratio, ask wall ratio. Institutional-grade depth analysis for BTC, ETH, SOL, and 12 more. AI agent API for order flow analysis, market making signals, and liquidity assessment.

## Output

Returns orderbook microstructure data for the requested asset including: bid/ask volume imbalance (ratio of bid vs ask depth), spread expressed in basis points, bid wall ratio (concentration of large bid orders), and ask wall ratio (concentration of large ask orders) — institutional-grade depth metrics derived from Binance L2 order data.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "coin"
 ],
 "properties": {
  "coin": {
   "type": "string",
   "title": "Coin"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-carbon-cashmere-de-a5b28610/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.carbon-cashmere.de](https://www.zero.xyz/host/api.carbon-cashmere.de/llms.txt)