Helius
Developers use Helius webhooks, WebSockets, or LaserStream gRPC to listen for real-time on-chain events (such as token mints, program activity, or swaps).
What is Helius?
Helius brings together high-performance rpc & apis and data streaming & event listening. Standard and enhanced JSON-RPC methods, DAS (Digital Asset Standard) API for tokens/NFTs/compressed NFTs, and REST Wallet APIs. Data Streaming & Event Listening
Its documented workflow includes: Navigate to the Helius Dashboard and create a free or paid tier account. Go to the API Keys section in the dashboard sidebar, create a new key, and copy it. Configure applications to use Helius-specific RPC endpoints (e.g., https://mainnet.helius-rpc.com/?api-key=YOUR_API_KEY) or REST APIs (https://api.helius.xyz).
The platform documentation describes wallet access this way: Helius is an infrastructure and API provider, meaning it does not supply a proprietary consumer custody wallet or a built-in retail trading wallet interface.
Official resources
Supported networks
- Solana
Helius features
High-Performance RPC & APIs
Standard and enhanced JSON-RPC methods, DAS (Digital Asset Standard) API for tokens/NFTs/compressed NFTs, and REST Wallet APIs.
Data Streaming & Event Listening
Data Streaming & Event Listening
*LaserStream gRPC:* High-performance streaming with
*LaserStream gRPC:* High-performance streaming with historical replay.
*LaserStream WebSockets:* Subscriptions for accounts,
*LaserStream WebSockets:* Subscriptions for accounts, transactions, and program activity.
*Webhooks:* Real-time HTTP notifications for
*Webhooks:* Real-time HTTP notifications for specific addresses and events.
How to use Helius
Account Creation
Navigate to the Helius Dashboard and create a free or paid tier account.
API Key Generation
Go to the API Keys section in the dashboard sidebar, create a new key, and copy it.
Endpoint Integration
Configure applications to use Helius-specific RPC endpoints (e.g., https://mainnet.helius-rpc.com/?api-key=YOUR_API_KEY) or REST APIs (https://api.helius.xyz).
Alternative Integration (AI/CLI)
Developers can also hook into Helius via the official Model Context Protocol (MCP) server (npx helius-mcp@latest) or CLI tools for agent-based interactions and workspace integrations.
Data Ingestion & Event Monitoring
Developers use Helius webhooks, WebSockets, or LaserStream gRPC to listen for real-time on-chain events (such as token mints, program activity, or swaps).
Who is Helius for?
Helius is suited to users looking for high-performance rpc & apis and data streaming & event listening on Solana (Mainnet and Devnet). Its documented workflow includes DEX selection or routing and wallet funding and balance management.
Before you use it
- Helius explicitly warns developers never to hardcode API keys directly into scripts or client-side code exposed publicly; keys should be kept secure in environment variables or configuration secrets (e.g., .secrets.toml).
- Usage is subject to tiered rate limits and credit consumption models based on the selected plan (free tier vs.
- Production workflows must explicitly validate network assumptions (Mainnet vs.
