All systems operational

Crypto listing announcements
before anyone else

Ultra-low latency WebSocket feed for real-time Binance, Upbit & Bithumb new coin listing notices.

Latest Listings and Delistings
CEX Ticker Type Detection Timestamp
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WebSocket Endpoint
wss://cryptolisting.ws
Monitoring live
Binance
Live
Upbit
Live
Bithumb
Live
More soon
Coming soon
At a glance
<1ms
Dispatch latency
3 CEX
Live exchanges
24/7
Monitoring
What you get
Sub-millisecond dispatch
From detection to your connection in under 1ms. Zero-copy broadcast to all subscribers.
Microsecond timestamps
Precise timing at every stage: publish, detect, dispatch. Measure your exact latency.
Exchange filtering
Subscribe to specific exchanges with the ?cex= parameter. Receive only what you need.
Always-on heartbeat
30-second heartbeats with server timestamps. Know immediately if your connection drops.

Never miss a Binance listing alert again

Join our Telegram channel for updates, or contact us directly to get your API key and start trading new listings in real time. See our pricing & tiers to pick the plan that fits you.

Join Telegram Channel
Pick a tier
Free
0 ms
added delay
  • Test for an unlimited period of time
  • 0 ms added delay
  • title & ticker redacted on listings
Get a free key →
Premium
0 ms
added delay
  • Built for the best exec-time
  • 0 ms added delay
  • Full title & ticker — actionable
See pricing →
Basic
+20 ms
added delay
  • Built for speed, but at a lower cost
  • 20 ms added delay
  • Full title & ticker — actionable
See pricing →
Read the Documentation
See it in action
Example message 
{
  "type": "announcement",
  "title": "Binance Will List TOKEN",
  "ticker": "TOKEN",
  "publisher": "binance",
  "listingType": "spot_listing",
  "detectedTimestampUs": 1710345000005000,
  "dispatchTimestampUs": 1710345000006000
}
Quick start — Python 
# pip install websocket-client
import json, websocket

def on_message(ws, msg):
    d = json.loads(msg)
    if d["type"] == "announcement":
        print(f"{d['ticker']} on {d['publisher']}")

websocket.WebSocketApp(
    "wss://cryptolisting.ws",
    header=["X-API-Key: YOUR_KEY"],
    on_message=on_message,
).run_forever()
Frequently asked questions
How fast are the alerts?
Under 1 millisecond from detection to your WebSocket connection. That's faster than Telegram bots, email alerts, and even other WebSocket-based providers. Our purpose-built low-latency stack and co-located infrastructure gives us an edge no other provider can match.
How fast are you compared to competitors?

It depends on the exchange. For CEX with servers in Tokyo (Binance, Bybit, OKX…), our detection-to-dispatch latency is sub-1 millisecond. Our infrastructure sits in the same AWS Tokyo region, so the round-trip is virtually zero.

For Korean exchanges like Bithumb and Upbit, expect around ~20 ms. Their announcement servers are in Seoul, so there's an incompressible Seoul ↔ Tokyo network hop. That said, the major CEX you'd actually buy on (Binance, Bybit) are in Tokyo — so the full pipeline from alert to order execution stays sub-millisecond if your trading bot is co-located with us.

Our purpose-built infrastructure makes us consistently the fastest option available today across all monitored exchanges.

Where are your servers located?

Our entire infrastructure runs on AWS Tokyo (ap-northeast-1). This is where the majority of major CEX (Binance, Bybit, OKX) have their matching engines and announcement servers.

For the absolute best performance, we recommend running your trading bot on a server in AWS Tokyo as well. With both ends in the same datacenter region, you can expect sub-2 ms end-to-end latency between our WebSocket dispatch and your bot receiving the message — leaving you the maximum edge to execute trades before the market moves.

Which exchanges do you monitor?
Binance, Upbit, and Bithumb are live now. More exchanges are being added regularly. You can filter by exchange using the ?cex=binance,upbit query parameter.
What types of announcements are detected?
Spot listings, futures listings, spot & futures delistings, HODLer Airdrops, and other exchange announcements (maintenance, token swaps). Each message includes the announcement type so you can filter programmatically.
How do I connect?
Connect to wss://cryptolisting.ws with your API key in the X-API-Key header. You'll receive structured JSON messages instantly. Works with any WebSocket library in any language.
Can I use this for automated trading?
Yes. The API is designed specifically for trading bots. Every message is structured JSON with consistent field names, microsecond timestamps, and the ticker symbol ready for immediate execution.
How do I measure my latency?
Every announcement includes three timestamps: when the exchange published it, when we detected it, and when we dispatched it. Compare the dispatch timestamp to your receive time to calculate your exact network latency.
What if a listing has multiple tickers?
Some exchanges list multiple tokens in a single announcement. The ticker field will be comma-separated (e.g. ABC,DEF,GHI). Split on comma to get individual symbols.
How do I get an API key?
Contact us on Telegram @cryptolistingwebsocket. We'll set you up in minutes.

Ready to get low-latency WebSocket alerts?

Get your API key in minutes or explore the full documentation.

Contact on Telegram Read the Documentation