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LangChain

anvil for LangChain

io.usefulapi/anvil

Hosted MCP server for Anvil — fill & generate PDFs and run Etch e-signature packets for AI agents.

client:LangChain transport:streamable-http tools:10

Install anvil in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "anvil": {
            "transport": "streamable_http",
            "url": "https://anvil.usefulapi.io/mcp",
        }
})

tools = await client.get_tools()

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

What LangChain can do once it is connected

anvil in other clients