WebSocket performance
New Listings Feed delivers exchange announcements through a low-latency WebSocket API. Review our event data, parsing updates and public track record, then compare recorded processing and delivery times or measure delivery from your own server.
Original notices and event data
Listing alerts include the source notice URL alongside the exchange, event type and assets, with the original announcement title when available. You can read the source announcement and use the structured fields in your own system.
From announcement to usable event
The v2 feed lets you choose the data your system needs. /v2/fast carries the raw announcement before parsing; /v2/full carries the classified event with its exchange, event type and assets.
Coverage includes spot and perps listings and delistings, Alpha additions and removals, launch programs and additional exchange announcements. The available event types vary by exchange.
Paid keys also include onchain data when available: token contracts, project matches and market metrics. Confirmed addresses and inferred matches are separately labeled so your system can tell them apart.
Parsing updates and issue review
Exchanges change announcement formats and introduce new trading products. We update event handling and parsing as those changes happen, and monitor feed performance as coverage and announcement activity change.
We investigate reported issues against the original notice and use the findings to correct the data and improve parsing.
Public track record
New Listings Feed has been built in the open for over two years. Thousands of traders read our public feeds day to day. The main Telegram channel has 50k+ subscribers, and our Telegram and X channels publish from the same streams available through the WebSocket API.
A track record of fast detection
Our historical records show detection usually within 1–20ms of original announcement publication for many exchanges. Explore recent detection timestamps and measure delivery from your own server.
New Listings Feed is the fastest listing WebSocket for trading bots and listing snipers. Put that claim to the test where your bot runs. Detection and client delivery are separate intervals; your location, connection and client workload affect arrival time. Use recorded results to evaluate the feed instead of relying on marketing copy.
Get a free key to inspect events and measure delivery after event publication with a 3-second configured delay. Comparing PRO speed needs a PRO capture with zero configured delay.
Measured WebSocket performance
Average timings recorded in Tokyo, with the WebSocket endpoint and receiving client in the same AWS availability zone, ap-northeast-1a.
Processing measures detection to the server’s output timestamp. Receive lag measures that timestamp to client receipt. Your location and connection affect delivery time.
Scroll horizontally to compare all columns.
| Stream | Average processing | Average receive lag |
|---|---|---|
/v2/fast | 0.179ms | 0.407ms |
/v2/full | 1.178ms | 0.349ms |
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