# Binance Spot Order Book Depth

> Binance Spot Order Book Depth is a paid API for AI agents from api.syraa.fun, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Fetches live Binance spot order book depth data (bids and asks) for a specified trading pair.

## Facts

- Endpoint: GET https://api.syraa.fun/binance/spot/depth
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-syraa-fun-1be65913
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ieFhV4PjyS92bA8ArPr6q

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-syraa-fun-1be65913
```

Example prompt: Pull the live order book depth for BTC/USDT on Binance spot — I want to see the current bids and asks.

## When to prefer this

Use this endpoint when you need a live, real-time snapshot of the Binance spot order book for a specific trading pair — especially for liquidity analysis, slippage estimation, or market-making decisions. Prefer it over ticker endpoints when you need granular bid/ask ladder data rather than just last price or 24h stats.

## Known failure modes

- Invalid or unsupported trading pair symbol returns an error
- Payment not provided or insufficient USDC results in 402 response
- Binance API unavailable or rate-limited causes upstream failure
- Missing required query parameters (e.g. symbol) results in validation error
- Network timeout if Binance data feed is slow

## How this service works

Binance — Spot — Depth. Syra x402 paid API at /binance/spot/depth. Pay via HTTP 402 on Solana, Base, BSC, or Algorand. Docs: https://docs.syraa.fun

## Output

Returns a live snapshot of the Binance spot order book for the requested trading pair, including arrays of bid price/quantity pairs and ask price/quantity pairs at multiple depth levels.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-syraa-fun-1be65913/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.syraa.fun](https://www.zero.xyz/host/api.syraa.fun/llms.txt)