x402 sms for LangChain
io.github.ultrastarz/x402-sms
Pay-per-call MCP server. $0.03 USDC sends one transactional SMS to a US phone number via x402.
client:LangChain
transport:stdio
runtime:npm
Install x402 sms in LangChain
pip install langchain-mcp-adapters
from langchain_mcp_adapters.client import MultiServerMCPClient
client = MultiServerMCPClient({
"x402-sms": {
"transport": "stdio",
"command": "npx",
"args": ["-y", "x402-sms-mcp"],
}
})
tools = await client.get_tools()
get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs