Ticker Stream

Streams 24h stats and funding info for futures symbols.

Subject (all markets)	v1.f.ex1.public.futures.ticker.>
Subject (one market)	v1.f.ex1.public.futures.ticker.BTC/USDT
Auth	Public — no signature.

Subscribe

Python

import asyncio
import nats

async def main():
    nc = await nats.connect("wss://pc-nats-prod.coinswitch.co")
    sub = await nc.subscribe("v1.f.ex1.public.futures.ticker.>")
    async for msg in sub.messages:
        print(msg.data.decode())

asyncio.run(main())

Java

// implementation 'io.nats:jnats:2.17.4' on Maven Central.
import io.nats.client.*;

Connection nc = Nats.connect("wss://pc-nats-prod.coinswitch.co");
Dispatcher d = nc.createDispatcher(msg -> {
    System.out.println(new String(msg.getData()));
});
d.subscribe("v1.f.ex1.public.futures.ticker.>");
Thread.currentThread().join(); // block forever

Go

import (
    "log"
    "github.com/nats-io/nats.go"
)

nc, err := nats.Connect("wss://pc-nats-prod.coinswitch.co")
if err != nil { log.Fatal(err) }
defer nc.Drain()

_, err = nc.Subscribe("v1.f.ex1.public.futures.ticker.>", func(m *nats.Msg) {
    log.Println(string(m.Data))
})
if err != nil { log.Fatal(err) }

select {}

Node.js

// npm install nats
const { connect, StringCodec } = require('nats');

const nc = await connect({ servers: 'wss://pc-nats-prod.coinswitch.co' });
const sc = StringCodec();

const sub = nc.subscribe('v1.f.ex1.public.futures.ticker.>');
for await (const m of sub) {
  console.log(sc.decode(m.data));
}

Update payload

{
  "t": 0,
  "e": "COINSWITCHX",
  "Epoch": 1756476914647,
  "ticker_data": [
    {
      "t": 1756476541682,
      "m": "BTC/USDT",
      "o": "112762.00",
      "h": "113276.40",
      "l": "108480.00",
      "c": "108719.70",
      "e": "COINSWITCHX",
      "E": 1756476914647,
      "bv": "83749.1230",
      "qv": "9294150459.9087",
      "P": "-3.584800",
      "b": "108719.60",
      "a": "108719.70",
      "T": 1756483200000,
      "p": 108719,
      "i": 108754.05,
      "s": 0,
      "r": 1.773e-05,
      "oi": "67075.848",
      "oiv": "7292419118.71",
      "bs": "5.474",
      "as": "2.557"
    }
  ]
}

The wildcard subject delivers an array of these envelopes. The single-market subject delivers a single envelope.

Envelope fields

Field	Type	Description
Epoch	integer	Snapshot timestamp (Unix ms).
e	string	Exchange identifier.
ticker_data	array	Per-market entries.

ticker_data[] fields

Field	Type	Description
m	string	Market — BASE/QUOTE.
t	integer	Server timestamp (Unix ms).
E	integer	Exchange-side timestamp (Unix ms).
o / h / l / c	string	24h open / high / low / last (close).
bv	string	24h base-asset volume.
qv	string	24h quote-asset (USDT) volume.
P	string	24h percentage change.
b / a	string	Best bid / ask price.
bs / as	string	Best bid / ask size.
p	number	Mark price.
i	number	Index price.
s	number	Settle price.
r	number	Funding rate.
T	integer	Next funding timestamp (Unix ms).
oi	string	Open interest in base asset.
oiv	string	Open interest in USDT.