Mcp Wallet Signer

Name: Mcp Wallet Signer
Author: nikicat

by nikicatcommunityv0.1.3

MCP Wallet Signer allows users to interact with blockchain transactions through their browser wallet, ensuring private keys never leave the browser and requiring user approval for each transaction.

From the registry: Route EVM transactions to browser wallets (MetaMask, etc.) for signing via EIP-6963

GitHub Repository Website

Install & configure

Prerequisites

required
Browser wallet
Requires an EIP-6963 compatible browser wallet (MetaMask, Rabby, etc.) open in a browser

Install in your client

Paste into the AI you're chatting with — it will figure out the rest

Please install the `mcp-wallet-signer` MCP server into my current AI client (that's you).

Required prerequisites (do these first if not already done):
- **Browser wallet** — Requires an EIP-6963 compatible browser wallet (MetaMask, Rabby, etc.) open in a browser

Canonical MCP server config (stdio transport):
- command: `npx`
- args: ["-y","mcp-wallet-signer"]

Note: Routes every tx to the user's browser wallet via EIP-6963. No private key in config.

Add this MCP server to my current client's config in the correct format for you. If you need secrets or credentials I haven't provided, ASK me — do not invent values or leave raw placeholders. After adding it, tell me how to verify the server is connected.

Note: Routes every tx to the user's browser wallet via EIP-6963. No private key in config.

Tools (5)

connect_wallet

Connect wallet, return address

send_transaction

Send ETH/tokens, call contracts

sign_message

Sign arbitrary message (personal_sign)

sign_typed_data

Sign EIP-712 typed data

get_balance

Read ETH balance (via RPC)

Environment variables

EVM_MCP_PORTHTTP server port

EVM_MCP_DEFAULT_CHAINDefault chain ID

Packages

mcp-wallet-signer

npmv0.1.3transport: stdio

Details

Language: TypeScript
License: MIT
Released: Feb 11, 2026
Last commit: May 20, 2026
Registry name: io.github.nikicat/mcp-wallet-signer

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