langsmith

Client library to connect to the LangSmith Observability and Evaluation Platform.

v0.3.79 URL: https://unpkg.com/langsmith@0.3.79/dist/index.js

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LLM Tracing Evaluation LangChain

vscode-chat-langchain-bridge

Create VS Code Chat participants (agents) with LangChain/LangGraph: tool-calling and streaming bridge for LanguageModelChat.

v0.2.1 URL: https://unpkg.com/vscode-chat-langchain-bridge@0.2.1/dist/index.cjs

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vscode vs code chat participant chat agent agent LanguageModelChat vscode.lm Copilot LangChain LangGraph tool calling streaming ai extension createChatParticipant registerChatParticipant

@trubrics/trubrics

A Trubrics SDK for JavaScript applications

v0.5.28 URL: https://unpkg.com/@trubrics/trubrics@0.5.28/dist/trubrics.js

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Trubrics analytics Open AI OpenAI Azure OpenAI LangChain LLM

langgraph-cassette

Debug LangGraph/LangChain agents offline with cassette record/replay + token & cost logging.

v1.0.3 URL: https://unpkg.com/langgraph-cassette@1.0.3/src/core/CassetteLLM.js

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LangGraph LangChain LLM record replay mock offline observability CLI

@agentpaid/mcp-use

A utility library for integrating Model Context Protocol (MCP) with LangChain, Zod, and related tools. Provides helpers for schema conversion, event streaming, and SDK usage.

v0.1.9 URL: https://unpkg.com/@agentpaid/mcp-use@0.1.9/dist-cjs/index.js

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MCP Model Context Protocol LangChain Zod schema SDK eventsource AI utility typescript