{symbol}: Level 3 Order Book

API: blockchain.com:blockchain.com-api
Endpoint: /l3/{symbol}
Response format: application/json
Auth: unknown
Method: GET
Last Status: 200
Latency: 212ms

Description

Provides non-aggregated order book data showing each individual order with its unique order ID. Use this for detailed market microstructure analysis and order flow tracking. Unlike L2, each order is shown separately even at the same price.

From spec: Returns Level 3 Order Book data with individual orders. Each entry in bids and asks arrays contains order id, price (px), and quantity (qty). Unlike L2, L3 contains all individual orders without aggregation.

Usage Tips

- Symbol format: BASE-QUOTE (e.g., BTC-USD, ETH-USD) - L3 shows individual orders - response is larger than L2 - Each order has a unique ID, price (px), and quantity (qty)

Parameters (1)

symbol (?, path, required)

Trading symbol (e.g., BTC-USD, ETH-USD)

Examples (1)

Get Level 3 order book for BTC-USD doc_extracted

Demonstrates fetching individual order book entries showing each unique order with its ID, price, and quantity.

curl 'https://api.blockchain.com/v3/exchange/l3/BTC-USD'
import requests

resp = requests.get("https://api.blockchain.com/v3/exchange/l3/BTC-USD")
data = resp.json()
import zingu_apis

api = zingu_apis.api("blockchain.com")
result = api.fetch("l3/{symbol}")

for item in result:
    print(item)
const resp = await fetch("https://api.blockchain.com/v3/exchange/l3/BTC-USD");
const data = await resp.json();

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-04-16 01:04:23.486807 200 212ms
2026-04-15 00:06:42.550411 200 201ms
2026-04-14 00:13:25.983057 200 207ms
2026-04-12 16:33:08.462240 200 175ms
2026-04-10 03:19:21.226802 200 146ms
2026-04-09 01:37:05.031654 200 235ms