Spend Brake for LangChain
io.github.kivanow/spend-brake
Capped search, maps and other paid APIs over MCP, with hard dollar limits per key.
client:LangChain
transport:stdio
runtime:npm
Install Spend Brake in LangChain
pip install langchain-mcp-adapters
from langchain_mcp_adapters.client import MultiServerMCPClient
client = MultiServerMCPClient({
"spend-brake": {
"transport": "stdio",
"command": "npx",
"args": ["-y", "@spend-brake/mcp"],
}
})
tools = await client.get_tools()
get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs