​
Solana RPC endpoints

Standard, high-performance RPC endpoints providing full Solana API compatibility with enhanced reliability and throughput. These endpoints support all Solana JSON-RPC methods and are suitable for most applications:

  • Mainnet: https://mainnet.helius-rpc.com/?api-key=YOUR_API_KEY
  • Devnet: https://devnet.helius-rpc.com/?api-key=YOUR_API_KEY

​
Secure RPC endpoints

These URLs are specifically masked and IP rate-limited at 5 TPS, making them safe to use directly from frontend applications without exposing your API credits:

  • Mainnet: https://YOUR_-fast-mainnet.helius-rpc.com
  • Devnet: https://YOUR-PROJECT-NAME-fast-devnet.helius-rpc.com

​
Staked Connection endpoints

Staked Connections help land transactions faster with increased delivery rates. Available with any standard paid plan (not available on Dedicated Nodes):

  • Mainnet: https://staked.helius-rpc.com?api-key=YOUR_API_KEY
    • Cost: 50 credits per request
    • Recommended for top traders or teams who need guaranteed access to staked connections during market congestion
    • Transactions sent over optimized network (Asia, Europe, and North America)
  • Devnet: Only available for mainnet

​
Solana Websocket Endpoints

Standard WebSocket endpoints that provide real-time data streaming according to the Solana WebSocket protocol. These endpoints support all standard Solana WebSocket subscription methods including account, program, signature, slot, and log subscriptions:

  • Mainnet: wss://mainnet.helius-rpc.com/?api-key=YOUR_API_KEY
  • Devnet: wss://devnet.helius-rpc.com/?api-key=YOUR_API_KEY

​
Key Features

  • Supported subscriptions: accountSubscribe, programSubscribe, signatureSubscribe, slotSubscribe, logsSubscribe, and more
  • Protocol compatibility: Fully compatible with Solana’s standard WebSocket API
  • Best for: Applications that need to monitor account changes, track transaction confirmations, or receive real-time updates on blockchain activity
  • Connection management: Implement periodic pings every 30-60 seconds to maintain active connections

​
Geyser Enhanced Websocket Endpoints

Enhanced WebSockets offer faster response times than traditional RPC WebSockets and provide real-time transaction and account updates directly to your applications:

  • Mainnet: wss://atlas-mainnet.helius-rpc.com/?api-key=YOUR_API_KEY
  • Devnet: wss://atlas-devnet.helius-rpc.com/?api-key=YOUR_API_KEY

​
Key Features

  • Available for: Business and professional plans only (not the same as Yellowstone Geyser, which requires a Dedicated Node)
  • Subscription methods: Supports transactionSubscribe and accountSubscribe
  • Connection management: Websockets have a 10-minute inactivity timer; implement health checks and send pings every minute to keep connections alive
  • Current status: In beta, occasionally may experience delayed data