HALOWERK marktwerk Order Book

x402

HALOWERK marktwerk Order Book is a paid API for AI agents from markt.halowerk.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-12).

Returns the live order book (bids and asks) for a BASE/QUOTE trading pair from Binance, Coinbase, Kraken, OKX, or Bybit, with depth statistics and optional price-band grouping

Price / call$0.002

Seller volume →—

Success—

StatusUnknown

How this service works

Returns the visible order book of Binance, Coinbase, Kraken, OKX or Bybit for one BASE/QUOTE pair. Levels come as [price, size] with bids descending and asks ascending. depth[] states how much turnover sits within 0.5, 1 and 2 percent of the mid per side, in the quote currency, and additionally as depth_usd where the quote is a US dollar unit. group_bps folds levels into price bands whose price is the size weighted average of the band, for agents that do not want a thousand rows. The exchange up

Output

Returns a structured order book with bid levels (descending) and ask levels (ascending) as [price, size] arrays, depth statistics showing quote-currency and USD turnover within 0.5%, 1%, and 2% of mid price per side, the venue's actual level cap used, and optionally grouped price bands using size-weighted average prices when group_bps is specified.

Example use cases

Liquidity check before large trade

“Before I place a $500k buy order for BTC/USDT on Binance, can you check the order book and tell me how much sell-side depth is available within 0.5%, 1%, and 2% of the current mid price?”

Cross-exchange spread comparison

“I want to compare the best bid and ask for SOL/USDC on Coinbase versus Kraken right now — can you pull the order books from both and show me the top 10 levels on each side?”

Grouped book for algorithmic strategy

“Get me the ETH/USDT order book on OKX grouped into 20 basis point bands so I can see the big price clusters without scrolling through thousands of rows — top 200 levels per side before grouping.”

Technical details

Endpoint

POSThttps://markt.halowerk.com/orderbook?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need live, per-exchange order book data for a specific crypto pair — especially when you want structured depth statistics (liquidity within X% of mid) or want to fold a raw book into price bands for easier consumption. Prefer it over a generic ticker when you need more than just best bid/ask, and over a consolidated quote endpoint when you want exchange-specific microstructure. It is ideal for pre-trade liquidity analysis, algorithmic strategy inputs, and market-making research.

Side effects

Invalid or unsupported trading pair symbol returns an error — the symbol must match BASE/QUOTE format and be listed on the chosen venue
Exchange API outage or rate limit causes upstream failure and may return a 5xx or timeout
group_bps value out of range (below 0.1 or above 500) is rejected
levels value outside 10–1000 range is rejected
Unsupported venue name returns a validation error
Some pairs may not be available on all venues, returning a not-found or empty book error

Input

Schema · Request body

Field	Type	Description
venue	string	Exchange to read the book from.
levels	integer	Number of levels per side. Exchanges cap this differently; venue_max_levels names the cap actually used.
symbol	string	Trading pair as BASE/QUOTE, for example ETH/USDC.
group_bps	number	Optional band width in basis points. Without it the book is returned ungrouped.

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