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x402.shizu.me Order Book
x402
x402.shizu.me Order Book is a paid API for AI agents from x402.shizu.me, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).
Returns real-time Coinbase order book data for a crypto pair, including best bid/ask, mid price, spread, and optional depth levels
Price / call$0.004
Success—
StatusUnknown
How this service works
Live order book for a crypto pair (e.g. BTC-USD). Default level=1: best bid/ask with sizes, mid price, spread, and spread_bps. level=2 adds top-of-book depth (depth param, 1-50 price levels per side, default 20). Real-time from Coinbase. Use for trading signals, spread monitoring, liquidity checks, and execution decisions.
Output
Returns the current order book for the requested crypto pair. At level 1: best bid price and size, best ask price and size, mid price, spread, and spread in basis points. At level 2: all of the above plus up to 50 price levels per side (bid and ask), showing price and size at each level. Data is sourced in real-time from Coinbase.
Example use cases
Monitor spread for algorithmic trading
“Check the current bid-ask spread for ETH-USD right now and let me know if it's tight enough to execute my arbitrage algorithm — I need the spread in basis points.”
Assess liquidity before large order
“Get the level 2 order book for SOL-USD and show me the top 15 price levels on each side — I'm planning a substantial trade and need to understand the liquidity depth.”
Track real-time market depth changes
“Pull the order book for BTC-USD every few seconds and alert me if the mid price moves significantly or if the best bid-ask sizes drop below a certain threshold — I'm monitoring market conditions closely.”
Technical details
Endpoint
GEThttps://x402.shizu.me/orderbookWhen to prefer
Use this endpoint when you need real-time order book data for crypto trading decisions, spread monitoring, or liquidity analysis sourced directly from Coinbase. Prefer this over spot price endpoints when you need depth of market, bid/ask spread, or execution quality signals. Choose level=2 when you need to assess market depth beyond the best bid/ask.
Side effects
- Invalid or unsupported trading pair returns an error (e.g. unsupported pair code)
- depth parameter out of range (must be 1-50) returns a validation error
- level parameter must be 1 or 2; other values return an error
- Coinbase connectivity issues may cause temporary data unavailability
- Payment failure (insufficient USDC balance) blocks the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ask": [
62541.8,
0.3
],
"bid": [
62540.2,
0.5
],
"mid": 62541,
"pair": "BTC-USD",
"level": 1,
"spread": 1.6,
"spread_bps": 0.256
}
}Tags
x402
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