WebSocket

Real-time subscriptions for slots, account changes, and transaction logs.

Endpoint

ws://cute-rabbit.by.supanode.xyz:8900/

Plain WebSocket, no TLS. Access restricted by IP allowlist.

Example

const { Connection } = require('@solana/web3.js');

const connection = new Connection("http://cute-rabbit.by.supanode.xyz:8899/", {
    wsEndpoint: "ws://cute-rabbit.by.supanode.xyz:8900/",
    commitment: 'confirmed'
});

connection.onSlotChange((slotInfo) => {
    console.log("New Slot:", slotInfo.slot);
});

Limits

• Concurrent connections: 10 on shared tiers, custom on dedicated
• Subscriptions per connection: 50
• Message rate: no hard cap, but excessive streaming gets throttled (fair use)

Reconnection

Connections can drop — network blips, allowlist updates, server maintenance. A few things to keep in mind:

• Use exponential backoff for reconnects. Don't hammer the endpoint immediately after a disconnect.
• Re-subscribe after reconnecting. Subscriptions don't survive a connection reset.
• Make sure your client handles WebSocket ping/pong frames to keep the connection alive during idle periods.
• If you're using logsSubscribe or programSubscribe, apply filters (mentions, memcmp) to keep the data volume manageable.