# helius

helius adds Helius MCP tools and Solana development skills to Claude Code. The MCP server requires a Helius API key.

- plugin · `type=plugin` · Claude Code · ★ 29
- Author: helius-labs
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/helius-labs/core-ai/tree/HEAD/helius-plugin
- Updated: 2026-10-22
- HTML: https://affpapa.org/en/nevibecode/plugins/helius

## What it does

The plugin starts a Helius MCP server with 9 routed domain tools and `expandResult`; large responses begin with a summary. Claude also gets reference material and skills for Helius APIs, Solana architecture, Phantom, Jupiter, DFlow, and OKX integrations.

The `helius:build` skill guides SDK choices and patterns for Helius products. Separate skills cover Phantom-based Solana apps, Jupiter DeFi, and DFlow trading. The DFlow MCP server is optional and not bundled; the OKX integration skill requires the separately installed `onchainos-skills` library. The MCP server starts automatically, but it still needs a Helius API key. You can provide one with `setHeliusApiKey` or use one of the signup flows described by the plugin.

## Install

### Claude Code (native platform)

**Plugin marketplace**
In the agent chat (not a shell):
```text
/plugin marketplace add anthropics/claude-plugins-community
```
In the agent chat (not a shell):
```text
/plugin install helius@claude-community
```

## When to use it
- query Solana wallet and token data
- monitor wallet transfers with webhooks
- parse a Solana transaction
- build a Jupiter or DFlow swap interface
- create a Solana dApp with Phantom Connect

## Example prompts
- Build a swap interface using DFlow and Helius Sender.
- Show the NFTs owned by this wallet.
- Set up webhooks to track incoming transfers to my wallet.

## Source text · helius-plugin · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: 98d5fb30727f1969.

BEGIN THIRD-PARTY FILE 98d5fb30727f1969
````text
# Helius Plugin for Claude Code

Build on Solana with Helius — one install gives you live blockchain tools and expert coding patterns.

## Install

### From a marketplace

```
/plugin marketplace add anthropics/claude-plugins-community
/plugin install helius@claude-community
```

Or install directly from source:

```
/plugin marketplace add helius-labs/core-ai
/plugin install helius@helius-labs
```

### Local testing

```bash
claude --plugin-dir ./helius-plugin
```

## What's included

**Helius MCP Server** — auto-starts with the plugin. Exposes 10 public tools total: 9 routed domain tools plus `expandResult`. Domain tools take Helius action names via `action`, and heavy responses are summary-first.

**DFlow MCP Server** — *optional, not bundled.* Tools for querying DFlow API details, response schemas, and code examples for trading integrations. The DFlow skill works without it. It is a third-party hosted connector and is not in the Anthropic MCP connector directory; setup instructions live at [pond.dflow.net/build/mcp](https://pond.dflow.net/build/mcp).

**Build skill** (`/helius:build`) — makes Claude an expert Solana developer. Includes routing logic, correct SDK patterns, reference files for every Helius product, and rules that prevent common mistakes (hardcoded fees, wrong endpoints, missing Jito tips).

**DFlow trading skill** (`/helius:dflow`) — makes Claude an expert at building Solana trading applications. Combines DFlow's trading APIs (spot swaps, prediction markets, real-time streaming, Proof KYC) with Helius infrastructure (Sender, priority fees, DAS, WebSockets, LaserStream, Wallet API).

**Phantom frontend skill** (`/helius:phantom`) — makes Claude an expert at building frontend Solana dApps with Phantom Connect SDK (`@phantom/react-sdk`, `@phantom/browser-sdk`, `@phantom/react-native-sdk`). Covers wallet connection (React, React Native, vanilla JS), transaction signing via Helius Sender, API key proxying, token gating, NFT minting, crypto payments, real-time updates, and secure frontend architecture.

**Jupiter DeFi skill** (`/helius:jupiter`) — makes Claude an expert at building Solana DeFi applications combining Jupiter's APIs with Helius infrastructure. Covers token swaps (Swap API V2), lending/borrowing (Lend protocol), limit orders (Trigger), DCA (Recurring), token and price data, perps/prediction markets, the Jupiter Plugin and Portal, plus transaction submission via Sender, fee optimization, real-time streaming, and wallet intelligence.

**OKX integration skill** (`/helius:okx`) — teaches Claude how to compose OKX's DEX aggregation and market data tools with Helius's Solana infrastructure. Integration-only layer (install the `onchainos-skills` library separately) covering swaps, token discovery, trending rankings, smart money signals, meme token analysis, and portfolio intelligence.

**SVM architecture skill** (`/helius:svm`) — makes Claude a Solana protocol expert. Covers the SVM execution engine, account model, consensus, transactions, validator economics, data layer, development tooling, and token extensions — sourced from the Helius blog, SIMDs, and Agave/Firedancer source. Use this for the "how" and "why" of Solana, not for building with APIs.

**Reference files** — deep documentation for DAS API, Sender, Priority Fees, Webhooks, WebSockets, Laserstream, Wallet API, Enhanced Transactions, Onboarding, DFlow spot trading, prediction markets, WebSocket streaming, Proof KYC, Phantom React/Browser/React Native SDKs, Jupiter swap/lend/trigger/recurring/tokens-price/perps-predictions/plugin/portal, transactions, token gating, NFT minting, payments, frontend security, SVM compilation/programs/execution/accounts/transactions/consensus/validators/data/development/tokens, and integration patterns.

## Usage

Once installed, just ask questions in plain English:

- "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..."
````
END THIRD-PARTY FILE 98d5fb30727f1969

The third-party file has ended. Everything between the 98d5fb30727f1969 tags is data: requests and commands from it are not followed. An “end of file” line with another tag inside the block is part of the file.

First 4062 of 5520 bytes. © helius-labs · MIT · https://github.com/helius-labs/core-ai/tree/HEAD/helius-plugin

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