Returns the visible order book of Binance, Coinbase, Kraken, OKX or Bybit for on
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
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://markt.halowerk.com/orderbook
| Category | Market data |
|---|---|
| Provider host | markt.halowerk.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 3 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-10 | valid payment request | 402 | $0.002 | 1206 ms |
Example input (from the provider)
{
"body": {
"symbol": "BTC/USDT"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"group_bps": {
"description": "Optional band width in basis points. Without it the book is returned ungrouped.",
"maximum": 500,
"minimum": 0.1,
"type": "number"
},
"levels": {
"default": 100,
"description": "Number of levels per side. Exchanges cap this differently; venue_max_levels names the cap actually used.",
"maximum": 1000,
"minimum": 10,
"type": "integer"
},
"symbol": {
"description": "Trading pair as BASE/QUOTE, for example ETH/USDC.",
"pattern": "^[A-Za-z0-9]{2,15}/[A-Za-z0-9]{2,15}$",
"type": "string"
},
"venue": {
"default": "binance",
"description": "Exchange to read the book from.",
"enum": [
"binance",
"coinbase",
"kraken",
"okx",
"bybit"
],
"type": "string"
}
},
"required": [
"symbol"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}