Index onlineMerchant portal
Api Endpoint

Order Book Depth and Slippage

Order book depth of one coin's perpetual on Bybit, Hyperliquid, dYdX, Gate, Kraken, Bitfinex, Deribit and OKX: best bid/ask, spread in bps, market depth in USD within 0.1/0.5/1/2% of mid, bid/ask imbalance, estimated slippage for your order size and the largest resting orders (walls). L2 orderbook liquidity for BTC, ETH, SOL and more. Data only. Bad input is free; under 2 venues not charged.

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Offering

Provider
derivs.duoleads.com
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://derivs.duoleads.com/v1/orderbook
MIME type
application/json
First seen
2026-10-16T01:50:24.663Z
Last seen
Tags
order-book-depth, Orderbook, order-book, slippage, market-depth

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.003 USDC
Atomic price: 3000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "payTo": "0xCD673f7e1daD254347AEab6be0DEFe8b9C6b3A39"
  }
]

Observed health

Status
Healthy
Latest latency
164 ms
Average latency
485 ms
HTTP status
402
Last checked
Reachability
100% over 15 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "coin": {
          "type": "string",
          "minLength": 1,
          "maxLength": 32,
          "pattern": "^[A-Za-z0-9][A-Za-z0-9_/-]*$",
          "description": "Coin symbol: BTC, ETH, SOL, PEPE ... (also BTCUSDT, BTC-PERP, XBT, 1000PEPE, kPEPE)."
        },
        "size_usd": {
          "type": "string",
          "pattern": "^[0-9]{1,13}(\\.[0-9]{1,8})?$",
          "default": "100000",
          "description": "Order size in USD for the slippage estimate, a plain decimal number from 1 to 1000000000. Default 100000."
        },
        "levels": {
          "type": "string",
          "pattern": "^0*([0-9]|1[0-9]|20)$",
          "default": "0",
          "description": "Also return the top N price levels per side (0-20). Default 0."
        }
      },
      "required": [
        "coin"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {
            "coin": {
              "description": "Coin symbol: BTC, ETH, SOL, PEPE ... (also BTCUSDT, BTC-PERP, XBT, 1000PEPE, kPEPE).",
              "maxLength": 32,
              "minLength": 1,
              "type": "string"
            },
            "levels": {
              "default": "0",
              "description": "Also return the top N price levels per side (0-20). Default 0.",
              "pattern": "^[0-9]{1,2}$",
              "type": "string"
            },
            "size_usd": {
              "default": "100000",
              "description": "Order size in USD for the slippage estimate (1-1e9). Default 100000.",
              "type": "string"
            }
          },
          "required": [
            "coin"
          ],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}