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mcp/harbor
LangChain

mcp-v8 for LangChain

io.github.r33drichards/mcp-js

Run JavaScript and TypeScript in sandboxed V8 isolates with policy-controlled host capabilities.

client:LangChain transport:stdio runtime:oci

Install mcp-v8 in LangChain

pip install langchain-mcp-adapters 

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "mcp-js": {
            "transport": "stdio",
            "command": "docker",
            "args": ["run", "-i", "--rm", "docker.io/wholelottahoopla/mcp-js:0.21.0-rc.2"],
        }
})

tools = await client.get_tools()

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

mcp-v8 in other clients

mcp-v8 MCP server