Skills phantom-wallet-mcp

Execute wallet operations through the Phantom MCP server — get addresses, sign transactions, transfer tokens, buy tokens, and sign messages across Solana, Ethereum, Bitcoin, and Sui

install

source · Clone the upstream repo

git clone https://github.com/sendaifun/skills

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/sendaifun/skills "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/phantom-wallet-mcp" ~/.claude/skills/sendaifun-skills-phantom-wallet-mcp && rm -rf "$T"

manifest: skills/phantom-wallet-mcp/SKILL.md

source content

Phantom Wallet MCP

Use the

phantom

MCP server to interact with the user's Phantom wallet directly.

Available Tools

Tool	Description
`get_wallet_addresses`	Get blockchain addresses (Solana, Ethereum, Bitcoin, Sui) for the connected wallet
`sign_transaction`	Sign a transaction (base64url for Solana, RLP hex for Ethereum)
`transfer_tokens`	Transfer SOL or SPL tokens on Solana — builds, signs, and sends the transaction
`buy_token`	Fetch Solana swap quotes from Phantom API; optionally sign and send
`sign_message`	Sign a UTF-8 message with automatic chain-specific routing

Setup

The

phantom

MCP server requires a

PHANTOM_APP_ID

environment variable from Phantom Portal. On first use, it opens a browser for OAuth authentication via Google or Apple login.

Supported Networks

Chain	Networks
Solana	mainnet, devnet, testnet
Ethereum	Mainnet, Sepolia, Polygon, Base, Arbitrum
Bitcoin	Mainnet
Sui	Mainnet, Testnet

Networks use CAIP-2 format (e.g.,

solana:mainnet

eip155:1

Examples

Get wallet addresses

Ask the

phantom

MCP to retrieve the user's wallet addresses, then use them for transactions.

Transfer SOL

Use

transfer_tokens

to send SOL to a recipient address. The MCP handles transaction building, signing, and submission.

Sign a message

Use

sign_message

for wallet verification or authentication flows. The MCP routes to the correct chain based on the network parameter.

Important Notes

Sessions persist locally in
```
~/.phantom-mcp/session.json
```
This is preview software — use a separate wallet with minimal funds for testing
The MCP server runs via stdio transport (launched by
```
npx -y @phantom/mcp-server
```
)