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Base Wallet MCP

Coinbase (Base)

Transport not documented13+ documented tools2

About Base Wallet MCP

Coinbase's hosted Wallet MCP connects compatible AI clients to a Coinbase/Base Account for wallet, portfolio, transaction-history and onchain operations across supported networks.

What you can use it for

  • Inspect the connected wallet and token portfolio
  • Resolve token symbols to contract addresses and decimals
  • Review transaction history
  • Prepare token sends, swaps, signatures, batched contract calls, and x402 payments subject to user approval
Connection and setup
Hosting
remote
Transport
Not documented
Endpoint
https://wallet-mcp.coinbase.com
Authentication
OAuth / Base Account authorization is prompted in the client on first wallet use. Write, swap and signing operations require separate approval through Coinbase Wallet.

Requirements

  • MCP-compatible client supporting remote HTTP MCP and OAuth
  • Coinbase/Base Account for authorization
  • Coinbase Wallet approval for write, swap, and signing actions

Setup steps

  1. Add a remote MCP server named Base MCP at https://wallet-mcp.coinbase.com using the client's remote-server flow.
  2. Complete the Coinbase/Base Account authorization prompt on first use.
  3. Confirm setup with a harmless request to list the user's wallets.
  4. For writes, swaps or signatures, review and approve the action in Coinbase Wallet; do not treat configuration as permission to transact.
Tools 13+

Updated the documented tool sample with currently named wallet capabilities including chain_rpc_request, web_request, initiate_x402_request and complete_x402_request. The first-party guide describes the operations but does not provide one fixed complete tools/list; keep the list partial. Every wallet write/payment requires user approval.

  • get_wallets

    List Coinbase Wallet and agent wallets, authorization state and supported chains.

    01
  • get_portfolio

    Return portfolio value and per-asset breakdown for an authorized wallet.

    02
  • search_tokens

    Resolve a token name or symbol to its contract address and decimals.

    03
  • get_transaction_history

    List authorized wallet transactions in reverse chronological order.

    04
  • send

    Prepare a token transfer for user approval in Coinbase Wallet.

    05
  • swap

    Prepare a token swap for user approval in Coinbase Wallet.

    06
  • sign

    Sign a message after wallet approval.

    07
  • send_calls

    Submit one or more contract calls for user approval and atomic execution.

    08
  • get_request_status

    Check the status of a wallet request after user approval.

    09
  • chain_rpc_request

    Make supported on-chain RPC reads through Wallet MCP.

    10
  • web_request

    Make an HTTP request to an allowlisted host through Wallet MCP.

    11
  • initiate_x402_request

    Prepare an x402 paid HTTPS request subject to a maximum USDC cap.

    12
  • complete_x402_request

    Complete an x402 request after the user approves its payment.

    13

This server’s available tools can vary by account, permissions, or configuration. The list shown is not its full runtime catalog.

Limitations and notes
  • The live MCP tool catalog can change; use server discovery for the current complete list.
  • Transaction writes are consequential and irreversible onchain; user must inspect and approve each request.
  • Swaps are not available on testnets.
  • Some x402 payments require wallet signature approval and are better suited to larger purchases.
  • Old endpoint https://mcp.base.org is retained for existing connections; new setup should use https://wallet-mcp.coinbase.com.
Source discrepancies
  • Discovery queue label ?Base Blockchain? is broad. Research identifies the relevant official Base implementation as Coinbase Base Wallet MCP; tool catalog is explicitly dynamic, so the documented list is partial.
Original sources
  • official tool reference

    Updated the documented tool sample with currently named wallet capabilities including chain_rpc_request, web_request, initiate_x402_request and complete_x402_request. The first-party guide describes the operations but does not provide one fixed complete tools/list; keep the list partial. Every wallet write/payment requires user approval.

  • official documentation or source

    Updated the documented tool sample with currently named wallet capabilities including chain_rpc_request, web_request, initiate_x402_request and complete_x402_request. The first-party guide describes the operations but does not provide one fixed complete tools/list; keep the list partial. Every wallet write/payment requires user approval.

Documentation checked 2026-10-28T14:15:00.000Z. Connection has not been runtime tested.

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