name: phantom-wallet-mcp description: 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
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)