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nikicat/mcp-wallet-signer

by Various

MCP server that routes blockchain transactions to browser wallets for signing

N

MCP

nikicat/mcp-wallet-signer

Added 1 June 2026

#ai-agent #blockchain #eip-6963 #ethereum #mcp #metamask #model-context-protocol #non-custodial

Overview

An MCP server that routes blockchain transactions to browser wallets for signing. It enables AI agents or tools to propose transactions that users approve directly in extensions like MetaMask. Written in TypeScript, it acts as a bridge between MCP-based systems and web3 wallets.

Best for

Best for
Developers building AI agents that need user-approved blockchain transactions

Use cases

  • Integrate blockchain transaction signing into AI agent workflows
  • Allow AI to propose transactions that users approve in their browser wallet
  • Bridge MCP-based tools with web3 wallets for secure signing

Notes

An MCP server that routes blockchain transactions to browser wallets for signing. It enables AI agents or tools to propose transactions that users approve directly in extensions like MetaMask. Written in TypeScript, it acts as a bridge between MCP-based systems and web3 wallets.

1 stars on GitHub. Last updated 2026-05-20. Licensed MIT.

Use cases

  • Integrate blockchain transaction signing into AI agent workflows
  • Allow AI to propose transactions that users approve in their browser wallet
  • Bridge MCP-based tools with web3 wallets for secure signing

Pros

  • Keeps private keys secure by using browser wallet signing
  • Enables AI agents to initiate transactions with user approval
  • Open source and written in TypeScript

Cons

  • Very early stage with only 1 star and minimal community adoption
  • Requires a browser wallet extension installed and connected
  • Limited documentation and proven reliability

Indexed from awesome-mcp-servers-punkpeye and enriched against its public facts.

Pros

  • Keeps private keys secure by using browser wallet signing
  • Enables AI agents to initiate transactions with user approval
  • Open source and written in TypeScript

Cons

  • Very early stage with only 1 star and minimal community adoption
  • Requires a browser wallet extension installed and connected
  • Limited documentation and proven reliability