{"$schema":"https://wellknown.network/schemas/agent-record-v1.json","schemaVersion":"1","id":"ag_5fgfahe5wzud","handle":"langchain-mcp-client","url":"https://wellknown.network/agents/langchain-mcp-client","links":{"self":"https://wellknown.network/agents/langchain-mcp-client/record.json","html":"https://wellknown.network/agents/langchain-mcp-client","markdown":"https://wellknown.network/agents/langchain-mcp-client/record.md","api":"https://wellknown.network/api/v1/agents/langchain-mcp-client","status":"https://wellknown.network/api/v1/agents/langchain-mcp-client/status","claim":"https://wellknown.network/agents/langchain-mcp-client/claim","claimApi":"https://wellknown.network/api/v1/claims","claimDescriptor":"https://wellknown.network/agents/langchain-mcp-client/claim.json","badge":"https://wellknown.network/agents/langchain-mcp-client/badge.svg","openapi":"https://wellknown.network/openapi.json","history":"https://wellknown.network/api/v1/agents/langchain-mcp-client/history","tools":"https://wellknown.network/api/v1/agents/langchain-mcp-client/tools"},"ard":{"identifier":"urn:air::server:langchain-mcp-client","type":"application/mcp-server-card+json"},"kind":"mcp_server","declared":{"name":"langchain-mcp-client","summary":null,"description":"<!--\n  ~ Copyright (c) 2023-2024 Datalayer, Inc.\n  ~\n  ~ BSD 3-Clause License\n-->\n\n[![Datalayer](https://assets.datalayer.tech/datalayer-25.svg)](https://datalayer.io)\n\n[![Become a Sponsor](https://img.shields.io/static/v1?label=Become%20a%20Sponsor&message=%E2%9D%A4&logo=GitHub&style=flat&color=1ABC9C)](https://github.com/sponsors/datalayer)\n\n# 🦜 🔗 LangChain MCP Client\n\n[![Github Actions Status](https://github.com/datalayer/langchain-mcp-client/workflows/Build/badge.svg)](https://github.com/datalayer/langchain-mcp-client/actions/workflows/build.yml)\n[![PyPI - Version](https://img.shields.io/pypi/v/langchain-mcp-client)](https://pypi.org/project/langchain-mcp-client)\n\nThis simple [Model Context Protocol (MCP)](https://modelcontextprotocol.io) client demonstrates the use of MCP server tools by LangChain ReAct Agent.\n\n- 🌐 Seamlessly connect to any MCP servers.\n- 🤖 Use any LangChain-compatible LLM for flexible model selection.\n- 💬 Interact via CLI, enabling dynamic conversations.\n\n## Conversion to LangChain Tools\n\nIt leverages a utility function `convert_mcp_to_langchain_tools()`. This function handles parallel initialization of specified multiple MCP servers and converts their available tools into a list of LangChain-compatible tools ([List[BaseTool]](https://python.langchain.com/api_reference/core/tools/langchain_core.tools.base.BaseTool.html#langchain_core.tools.base.BaseTool)).\n\n## Installation\n\nThe python version should be 3.11 or higher.\n\n```bash\npip install langchain_mcp_client\n```\n\n## Configuration\n\nCreate a `.env` file containing all the necessary `API_KEYS` to access your LLM.\n\nConfigure the LLM, MCP servers, and prompt example in the `llm_mcp_config.json5` file:\n\n1. **LLM Configuration**: Set up your LLM parameters.\n2. **MCP Servers**: Specify the MCP servers to connect to.\n3. **Example Queries**: Define example queries that invoke MCP server tools. Press Enter to use these example queries when prompted.\n\n## Usage\n\nBelow an example with a [Jupyter MCP …","publisher":null,"homepage":"https://github.com/datalayer/langchain-mcp-client","repository":"https://github.com/datalayer/langchain-mcp-client","version":"0.3.0","license":"BSD 3-Clause License\n        \n        Copyright (c) 2024, Datal…","protocols":["mcp"],"tags":["jupyter","mcp"],"pricing":null,"endpoints":[{"url":"pypi:langchain-mcp-client","type":"package_pypi","auth":null,"probeable":false}],"skills":null,"tools":null,"extra":null,"attribution":{"kind":"pypi","name":"pypi","license":"pypi","repoUrl":"pypi","version":"pypi","description":"pypi","homepageUrl":"pypi"}},"derived":{"capabilities":[{"slug":"code.execution","name":"Code Execution","confidence":1,"provenance":"declared"},{"slug":"documents.conversion","name":"Document Conversion","confidence":0.836,"provenance":"derived"}],"categories":["code","documents"],"language":"en"},"observed":{"status":"unknown","statusReason":"Distributed as a package to run locally; no network endpoint to check.","lastOkAt":null,"lastProbedAt":null,"statusComputedAt":null,"reliability30d":null,"latestObservations":[],"tools":null,"package":{"name":"langchain-mcp-client","registry":"pypi","observedAt":"2026-10-28T08:28:14.249Z","publishedAt":"2025-04-02T14:58:07.698789Z","latestVersion":"0.3.0"},"toolSurface":null,"endpointFacts":[]},"verification":{"claimed":false,"claimedAt":null,"proofs":[]},"provenance":{"sources":[{"source":"pypi","key":"langchain-mcp-client","url":"https://pypi.org/project/langchain-mcp-client/","firstSeenAt":"2026-09-09T23:24:57.028Z","fetchedAt":"2026-10-28T08:27:20.364Z","normalizedAt":"2026-10-28T08:27:20.364Z"}]},"firstSeenAt":"2026-09-09T23:24:57.028Z","updatedAt":"2026-10-28T08:28:14.249Z"}