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LangChain

Barcode Tools (decode, render, GTIN validate) for LangChain

io.github.appvantagelabs2-a11y/barcode

Decode, render, validate barcodes: QR, DataMatrix, EAN, UPC, PDF417. All tools free, no auth.

client:LangChain transport:streamable-http tools:4

Install Barcode Tools (decode, render, GTIN validate) in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "barcode": {
            "transport": "streamable_http",
            "url": "https://mcp.casuyi.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

Barcode Tools (decode, render, GTIN validate) in other clients