Phantom Connect — Cursor & Claude Code Plugin

Give your agent a wallet. Swap, sign, and manage addresses across Phantom's supported chains — and tap into Phantom's docs for context. This plugin also includes skills, rules, and agents to help scaffold wallet-connected apps with the Phantom Connect SDK across React, React Native, and vanilla JS/TS.

Works with both Cursor and Claude Code.

Installation

Cursor

Clone or copy this plugin into your Cursor plugins directory, or open the folder in Cursor.
Cursor will automatically detect the .cursor-plugin/plugin.json manifest.
The MCP servers (phantom-connect-sdk and phantom-mcp) will appear in your MCP settings.

Claude Code

Install the plugin from a marketplace, or load it locally for development:

# From a marketplace (if available)
claude plugin install phantom-connect@marketplace-name

# From a local directory
claude --plugin-dir /path/to/phantom-connect-plugin/

Claude Code will detect the .claude-plugin/plugin.json manifest and load all skills, agents, and MCP servers.

Use the /phantom-connect:phantom-connect skill to get full SDK assistance:

/phantom-connect:phantom-connect react        # React SDK help
/phantom-connect:phantom-connect browser      # Browser SDK help
/phantom-connect:phantom-connect react-native # React Native SDK help

What's Included

Skills

All 8 skills are shared between Cursor and Claude Code, auto-discovered from skills/.

Skill	Description
phantom-connect	Comprehensive skill covering all three SDKs, transactions, payments, token-gating, and NFT minting
setup-react-app	Scaffold a React app with `@phantom/react-sdk`, PhantomProvider, ConnectButton, and hooks
setup-browser-app	Scaffold a vanilla JS/TS app with `@phantom/browser-sdk` singleton pattern
setup-react-native-app	Scaffold a React Native (Expo) app with `@phantom/react-native-sdk` and required polyfills
send-sol-transaction	Build and send SOL transfers with proper signing and verification
sign-message	Implement message signing for Solana and EVM, including SIWS authentication
add-social-login	Configure Google/Apple social login with embedded wallet support
phantom-wallet-mcp	Execute wallet operations via the Phantom MCP — addresses, transfers, signing, swaps

Rules (Cursor only)

Rule	What It Enforces
phantom-sdk-best-practices	Use `signAndSendTransaction`, proper provider setup, error handling, connection checks
solana-transaction-safety	Use `LAMPORTS_PER_SOL`, verify transactions, correct network selection, no key exposure
embedded-wallet-constraints	No `signTransaction`, spending limits, session duration, polyfill requirements

Claude Code's plugin system does not support always-on rules. These rules are embedded in the phantom-connect skill and applied when the skill is invoked.

Agents

Agent	Purpose
Phantom Integration Specialist	SDK integration — scaffolds projects, writes correct code, validates against constraints, and looks up Phantom docs in real-time
Phantom Wallet Agent	Wallet operations — get addresses, transfer tokens, sign transactions, execute swaps, and sign messages via the `phantom-mcp` server

MCP Servers

Server	Transport	Description
phantom-connect-sdk	SSE	Phantom Connect SDK documentation at `https://docs.phantom.com/mcp` for real-time API reference
phantom-mcp	stdio	Wallet operations via `@phantom/mcp-server` — sign transactions, transfer tokens, buy tokens, sign messages

The phantom-mcp server requires a PHANTOM_APP_ID environment variable from Phantom Portal. Set it in your environment or MCP settings.

Usage

Once installed, ask the agent to:

"Set up a React app with Phantom Connect"
"Add social login with Google and Apple"
"Send 0.1 SOL to an address"
"Implement Sign-in with Solana"
"Set up a React Native app with Phantom wallet"
"Get my wallet addresses"
"Transfer 0.5 SOL to [address]"
"Sign this message with my wallet"

The agent will follow the plugin's skills and rules to generate correct, safe integration code.

Requirements

Cursor editor or Claude Code CLI
A Phantom Portal account for appId registration: phantom.com/portal

License

MIT

phantom-mcp-server