Solana WebSocket RPC

Stream Solana data in real time over a WebSocket connection instead of polling. Every SwiftNodes plan includes a Solana WebSocket endpoint alongside HTTP, with flat-rate pricing and no KYC.

Endpoint

wss://rpc.swiftnodes.io/ws/solana?key=YOUR_API_KEY

The HTTP endpoint for Solana is https://rpc.swiftnodes.io/rpc/solana?key=YOUR_API_KEY. One API key works for both, and across all 75+ supported chains.

Subscribe to Solana in real time

import { Connection } from "@solana/web3.js";

const conn = new Connection("https://rpc.swiftnodes.io/rpc/solana?key=YOUR_API_KEY", {
  wsEndpoint: "wss://rpc.swiftnodes.io/ws/solana?key=YOUR_API_KEY",
});

// Subscribe to new slots on Solana
const subId = conn.onSlotChange((slot) => console.log("slot", slot.slot));

What you can subscribe to

• Slot and root updates: track chain progress in real time
• Account changes: get notified when an account's data updates
• Program and signature subscriptions for live app state

Free keys get one WebSocket connection with new-block subscriptions only. Every other subscription listed here needs a paid plan, which also raises the connection limit.

Solana is a Layer 1 (Proof-of-History + Tower BFT), with ~~400 milliseconds block times and ~12.8 seconds (32 confirmations for finality) finality. That cadence sets how frequently new-block subscriptions fire.

Frequently asked questions

See the full Solana RPC page for chain details, or the WebSocket docs for the complete method list.