Introduction

Real-time WebSocket feed for crypto exchange listing announcements. Please contact @cryptolistingws on Telegram for websocket pricing information.

You can also subscribe to our Telegram Feed Channel @cryptolistingwebsocket to get constant relevant information.

Checkout our website for FAQ : cryptolisting.ws.

What is this?

This service delivers instant notifications when a cryptocurrency exchange publishes an announcement -- listings and other exchange announcements. You connect via WebSocket and receive structured JSON messages in real time.

Currently supported exchanges:

Exchange	Status
Binance	Live
Bithumb	Live
Upbit	Live
More coming soon	--

Supported announcement types:

Type	Description
spot_listing	New spot market listing
futures_listing	New futures/perpetual listing
spot_delisting	Spot market delisting (coming soon)
futures_delisting	Futures/perpetual delisting (coming soon)
not_listing	Other exchange announcement (maintenance, airdrop, token swap, etc.)

How it works

Exchange publishes announcement
        |
        v
   Detection engine
        |
        v
   Dispatch server (< 1ms)
        |
        v
   Your WebSocket client

1. Our detection engine monitors exchange announcement pages continuously.

2. When a new listing is detected, it is parsed, classified, and forwarded to the dispatch server.

3. The dispatch server broadcasts the announcement to all connected WebSocket subscribers simultaneously.

4. You receive a JSON message with the ticker, exchange, listing type, and precise timestamps.

Key features

• Ultra-low latency -- sub-millisecond dispatch from detection to your connection.

• Precise timestamps -- microsecond-resolution timestamps at every stage (publish, detect, dispatch) so you can measure your exact latency.

• Exchange filtering -- subscribe only to the exchanges you care about.

• Always-on heartbeat -- know immediately if your connection drops.

• Zero-copy broadcast -- announcements are serialized once and shared across all subscribers for maximum throughput.

Quick links

Topic	Description
Quick Start	Connect in under 5 minutes
Authentication	API key format and usage
WebSocket API	Connection details and parameters
Message Reference	Full JSON schema for all messages
Exchange Filtering	Subscribe to specific exchanges
Rate Limits & Security	Limits, TLS, and security details
Error Handling & Reconnection	Close codes and retry strategy
Code Examples	Python, Node.js, Go examples