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When you set up the Phantom MCP server and sign in (even with the same Google or Apple account you use for Phantom), your agent receives a new dedicated wallet, not your existing personal wallet. This is by design.

Why your agent has a different wallet

Agent wallets are isolated from your personal Phantom wallet for security. An AI agent acting on your behalf should only have access to the funds you explicitly send it, not everything in your main wallet. When you authenticate with @phantom/mcp-server, Phantom creates a fresh wallet for that agent. This wallet has its own addresses across Solana, Ethereum, Bitcoin, and Sui.
The agent wallet starts with a zero balance. You must fund it before the agent can transfer tokens, swap, or trade. Use get_wallet_addresses to find the agent’s addresses after setup.

Where are my existing accounts?

Your existing Phantom accounts are still there. They haven’t been deleted or rotated.
  • Personal wallet: Accessible in the Phantom browser extension or mobile app as normal.
  • Embedded wallets (created via Phantom Connect SDK apps): Scoped to the app where they were created. Each app integration maintains its own wallet, separate from your personal wallet and your agent wallet.
Coming soon: Agent wallets will appear directly in the Phantom app, making it easy to view balances and manage funds alongside your other accounts.

How to fund your agent wallet

  1. After setup, ask your agent: “What are my wallet addresses?” or call get_wallet_addresses.
  2. Copy the address for the chain you want to use (e.g. Solana or Ethereum).
  3. Send funds from your personal wallet or an exchange to that address.
The agent can only spend what you send to its wallet.

Summary

AccountWhere to accessShares funds with agent?
Personal walletPhantom extension / mobile appNo
Embedded wallet (app logins)App where it was createdNo
Agent walletMCP server (get_wallet_addresses)No
Each wallet is separate. Signing in with the same email does not give your agent access to your personal wallet or embedded wallets.