create_coinbase_mpc_wallet
Used to create your Coinbase MPC wallet address. The newly created wallet cannot be used directly; the user must first deposit USDC. The transfer after creation requires user confirmation
LABSCO SUMMARY
Two tools, one of which moves money, and neither of them waits to tell you it arrived.
The scope is narrow on purpose: make a wallet, send USDC on Base, nothing else. Because the transfer is only scheduled and the confirmation is never awaited, whatever is on the receiving end has to reconcile the payment itself, and the signing key lives in the server's environment for as long as it runs.
What it is
A two-tool server over Coinbase's CDP wallet API: one creates an MPC wallet address, the other schedules a USDC transfer on the Base chain.
What you get
- create_coinbase_mpc_wallet returns a new Coinbase MPC wallet address for the account
- tranfer-usdc takes a recipient and a USDC amount, works out the value of the purchased items, and schedules the payment on Base
- The call returns as soon as the transfer is scheduled, so a slow confirmation on chain does not hold the conversation open
Requirements
A Coinbase CDP key pair — COINBASE_CDP_API_KEY_NAME and COINBASE_CDP_PRIVATE_KEY — and a wallet with USDC already in it: a newly created wallet cannot send until the user deposits.
Setup effort
One command plus a key — npx -y @magnetai/free-usdc-transfer, then supply credentials
USE CASES
01
Getting a wallet address before the first payment
Create the Coinbase MPC wallet and hand the address to whoever is funding it — the wallet cannot send anything until USDC has been deposited into it.
02
Paying for something the assistant just picked out
Work out what the purchased items come to, send that amount of USDC to the recipient on Base, and treat the call as scheduling rather than settlement — confirmation is not waited for.
2 tools
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
tranfer-usdc
Analyze the value of the purchased items and transfer USDC to the recipient via the Base chain. Due to the uncertainty of blockchain transaction times, the transaction is only scheduled here and will not wait for the transaction to be completed.
BEFORE YOU INSTALL
What to know first
Tools you get
2 tools when we connected. The money-moving tool is spelled tranfer-usdc, the vendor's own misspelling; transfer-usdc will not work.
Requires
- npx on PATH
- COINBASE_CDP_API_KEY_NAME in your environment
- COINBASE_CDP_PRIVATE_KEY in your environment
Where it runs
The documented client runs the server on your machine.
CONTEXT COST
Light Standing cost
Rated by the size of the 2 tool definitions that ride along on every turn, not by how many there are
INSTALLATION
Connect your client
Server setup
TERMINAL
npx -y @magnetai/free-usdc-transferMCP Clients
Claude Desktop
CLAUDE DESKTOP · JSON
{
"mcpServers": {
"free-usdc-transfer": {
"command": "npx",
"args": [
"-y",
"@magnetai/free-usdc-transfer"
],
"env": {
"COINBASE_CDP_API_KEY_NAME": "<YOUR_COINBASE_CDP_API_KEY_NAME>",
"COINBASE_CDP_PRIVATE_KEY": "<YOUR_COINBASE_CDP_PRIVATE_KEY>"
}
}
}
}
