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LangChain

FIVE Persona Engine for LangChain

io.github.kiro0x/five-mcp

160K deductive JSON persona constraints. 0 drift breaks in 120 turns. Free API, no key.

client:LangChain transport:stdio runtime:pypi

Install FIVE Persona Engine in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "five-mcp": {
            "transport": "stdio",
            "command": "uvx",
            "args": ["five-mcp"],
        }
})

tools = await client.get_tools()

get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs

FIVE Persona Engine in other clients