Helius MCP Server
Auto-starts
helius-mcp — 60+ tools for querying the blockchain, sending transactions, managing webhooks, and moreDFlow MCP Server
Auto-starts the DFlow MCP — tools for trading API details, response schemas, and code examples
Expert Skills
All skills, in one place, making Claude a Solana expert running on Solana’s fastest infrastructure provider
Install
From the Marketplace
Local Testing
What’s Included
MCP Servers
The plugin auto-starts two MCP servers when Claude Code launches:| Server | Transport | What It Provides |
|---|---|---|
Helius (helius-mcp@latest) | stdio | 60+ tools: DAS API, RPC, webhooks, streaming, wallet analysis, onboarding, Solana knowledge, docs |
DFlow (pond.dflow.net/mcp) | HTTP | Trading API details, response schemas, code examples for DFlow integrations |
Skills
| Skill | Invoke | What It Does |
|---|---|---|
| Build | /helius:build | Makes Claude an expert Solana developer. Routes to the right tools and reference files for DAS, Sender, WebSockets, LaserStream, Webhooks, Wallet API, and more. |
| Phantom | /helius:phantom | Makes Claude an expert at building frontend dApps. Covers Phantom Connect SDK (React, React Native, browser), token gating, NFT minting, payments, and secure frontend architecture. |
| DFlow | /helius:dflow | Makes Claude an expert at building trading apps. Combines DFlow APIs (spot swaps, prediction markets, streaming, KYC) with Helius infrastructure. |
| SVM | /helius:svm | Solana protocol expert. Explains architecture, consensus, execution engine, account model, and validator economics using live sources. |
Reference Files
Deep documentation bundled with each skill that Claude reads before writing code — covering DAS API, Sender, Priority Fees, Webhooks, WebSockets, LaserStream, Wallet API, Enhanced Transactions, Onboarding, Phantom Connect SDK (React, React Native, browser), token gating, NFT minting, payments, frontend security, DFlow spot trading, prediction markets, WebSocket streaming, Proof KYC, and integration patterns.API Key Setup
The plugin auto-starts the MCP server, but you still need a Helius API key. On first use, Claude guides you through one of these paths:- Existing Key
- Autonomous Signup
- CLI
If you already have a key from dashboard.helius.dev, use the
setHeliusApiKey MCP tool:Just tell Claude: “Set my Helius API key to YOUR_API_KEY”Usage
Once installed, ask questions in plain English. Claude picks the right tools and reads the right reference files automatically:- “Build a swap interface using DFlow and Helius Sender”
- “What NFTs does this wallet own?”
- “Set up webhooks to monitor my wallet for incoming transfers”
- “Parse this transaction:
5abc...” - “Build a portfolio viewer that shows tokens after connecting Phantom”
- “Send 1 SOL to
Gh9ZwEm...” - “Create a prediction market trading UI”
Plugin Structure
The plugin contains three top-level files and askills/ directory:
| Path | Purpose |
|---|---|
.claude-plugin/plugin.json | Plugin manifest (name: "helius", v1.0.0) |
.mcp.json | Auto-start config for Helius + DFlow MCP servers |
skills/build/ | /helius:build — SKILL.md + 9 Helius product reference files |
skills/phantom/ | /helius:phantom — SKILL.md + 16 reference files (Phantom + Helius) |
skills/dflow/ | /helius:dflow — SKILL.md + 12 reference files (DFlow + Helius) |
skills/svm/ | /helius:svm — SKILL.md + 10 architecture reference files |