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LangChain

B20 Check for LangChain

com.b20check/b20check

Verify B20 tokens on Base: issuer powers, imposter detection, signed EIP-712 verdicts.

client:LangChain transport:streamable-http runtime:npm tools:2

Install B20 Check in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "b20check": {
            "transport": "streamable_http",
            "url": "https://b20check.com/mcp",
        }
})

tools = await client.get_tools()

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

What LangChain can do once it is connected

B20 Check in other clients