Ethereum & EVM Message Signing for LangChain
io.github.nirholas/signing-mcp-server
Sign Ethereum messages - EIP-191, EIP-712 typed data, Permit2, signature verification and recovery
client:LangChain
transport:stdio
runtime:pypi
Install Ethereum & EVM Message Signing in LangChain
pip install langchain-mcp-adapters
from langchain_mcp_adapters.client import MultiServerMCPClient
client = MultiServerMCPClient({
"signing-mcp-server": {
"transport": "stdio",
"command": "uvx",
"args": ["signing-mcp-server"],
}
})
tools = await client.get_tools()
get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs