Blackwood State for LangChain
io.github.blackwood-state/blackwood-state
Blackwood State: pay-per-call tools for agents (web, SEC, PDF, domain), USDC over x402
client:LangChain
transport:streamable-http
tools:16
Install Blackwood State in LangChain
pip install langchain-mcp-adapters
from langchain_mcp_adapters.client import MultiServerMCPClient
client = MultiServerMCPClient({
"blackwood-state": {
"transport": "streamable_http",
"url": "https://x402-gateway.blackwoodstate8.workers.dev/mcp",
}
})
tools = await client.get_tools()
get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs