PaperAgent — Send Physical Mail for LangChain
dev.paperagent/letters
Mail one-off USPS letters from ChatGPT or Claude after you approve the preview and price. US only.
client:LangChain
transport:streamable-http
tools:8
Install PaperAgent — Send Physical Mail in LangChain
pip install langchain-mcp-adapters
from langchain_mcp_adapters.client import MultiServerMCPClient
client = MultiServerMCPClient({
"letters": {
"transport": "streamable_http",
"url": "https://paperagent.dev/mcp",
}
})
tools = await client.get_tools()
get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs