Build Your First Solana App with Helius

Helius gives you REST and JSON-RPC APIs for everything on Solana: token and NFT data, real-time streaming, transaction sending, and wallet monitoring, all behind a single API key. Three steps to your first call and AI-ready setup, then pick something to build.

Get started

Create your free Helius account

Sign up at the Helius Dashboard. The free tier is plenty for prototyping.Agents can sign up programmatically with the Helius CLI and the agent signup instructions.

Make your first API call

Open the Get started tab in your dashboard to copy your endpoint, pick a method, and send your first request in seconds.

Helius dashboard Get started section: copy your endpoint, pick a method, and send your first request

Install the Helius MCP

Connect the Helius MCP server to your AI tool so it can build and debug with live Solana data (balances, asset metadata, parsed transactions, webhooks, and streaming) instead of guessing. Works with Claude Code, Claude Desktop, Cursor, VS Code, Windsurf, Codex, and any MCP-compatible tool.

Run the following command:

claude mcp add helius npx helius-mcp@latest

Or add to your project’s .mcp.json:

{
  "mcpServers": {
    "helius": {
      "command": "npx",
      "args": ["helius-mcp@latest"]
    }
  }
}

Verify with:

claude mcp list

Want skills + MCP in one step? Install the Helius plugin instead:

claude plugin install helius @claude-plugins-official

Open Settings > Developer > Edit Config and add the server:

{
  "mcpServers": {
    "helius": {
      "command": "npx",
      "args": ["helius-mcp@latest"]
    }
  }
}

Restart Claude Desktop to apply.

Open the command palette (Cmd/Ctrl + Shift + P), search for MCP: Add Server, and enter:

Name: helius
Command: npx helius-mcp@latest

Or add to your project’s .cursor/mcp.json:

{
  "mcpServers": {
    "helius": {
      "command": "npx",
      "args": ["helius-mcp@latest"]
    }
  }
}

Create a .vscode/mcp.json file in your project root:

{
  "servers": {
    "helius": {
      "command": "npx",
      "args": ["helius-mcp@latest"]
    }
  }
}

Requires the GitHub Copilot extension with MCP support enabled.

Open the command palette (Cmd/Ctrl + Shift + P), search for Configure MCP Servers, and add:

{
  "mcpServers": {
    "helius": {
      "command": "npx",
      "args": ["helius-mcp@latest"]
    }
  }
}

Run the following command:

codex mcp add helius -- npx helius-mcp@latest

Or add to your ~/.codex/config.toml (or .codex/config.toml for project-scoped):

[mcp_servers.helius]
command = "npx"
args = ["helius-mcp@latest"]

Verify with:

codex mcp list

Build your first app

Each track is self-contained, with copy-pasteable code you can run in minutes.

Build a portfolio tracker

Mainnet. Tokens, NFTs, and SOL via DAS, history, and a live WebSocket feed.

Deploy your own program

Devnet. Deploy a sample program through Helius RPC and invoke it with sendTransaction.

Explore the platform

Build with AI agents

Connect the Helius MCP server and SDKs so your AI assistant builds on Solana with live data.

API Reference

Browse every Helius endpoint: RPC, DAS, enhanced transactions, webhooks, and streaming.

Digital Asset Standard (DAS)

Query tokens, NFTs, and compressed NFTs by owner, collection, or trait.

Real-Time Data Streaming

Stream live blockchain data with sub-second latency over gRPC or enhanced WebSockets.

Portfolio TrackerBuild a Solana portfolio tracker that surfaces any wallet's complete holdings alongside its live and historical on-chain activity.

⌘I

Get Started

Data Streaming & Event Listening

Data APIs & RPCs

Trading

Sending Transactions

Wallet-as-a-Service

Guides

Resources

Build Your First Solana App with Helius

Get started

Create your free Helius account

Make your first API call

Install the Helius MCP

Build your first app

Build a portfolio tracker

Deploy your own program

Explore the platform

Build with AI agents

API Reference

Digital Asset Standard (DAS)

Real-Time Data Streaming

​Get started

Create your free Helius account

Make your first API call

Install the Helius MCP

​Build your first app

Build a portfolio tracker

Deploy your own program

​Explore the platform

Build with AI agents

API Reference

Digital Asset Standard (DAS)

Real-Time Data Streaming

Get started

Build your first app

Explore the platform