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LangChain

VerifyAPI — fact-check with signed receipts for LangChain

io.github.kythekitty/verifyapi

Fact-check any claim with live web sources. Ed25519-signed receipts. Catches hallucinations.

client:LangChain transport:stdio runtime:npm

Install VerifyAPI — fact-check with signed receipts in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "verifyapi": {
            "transport": "stdio",
            "command": "npx",
            "args": ["-y", "@verify-api/mcp"],
        }
})

tools = await client.get_tools()

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

VerifyAPI — fact-check with signed receipts in other clients