LangSmith

LangSmith is a full-lifecycle DevOps service from LangChain that provides monitoring and observability. To integrate with Langflow, just add your LangChain API key as a Langflow environment variable and you are good to go!

Step-by-step Configuration

1. Obtain your LangChain API key from https://smith.langchain.com
2. Add the following keys to Langflow .env file:

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LANGCHAIN_API_KEY="your-api-key"

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LANGCHAIN_PROJECT="your-project-name"

or export the environment variables in your terminal:

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export LANGCHAIN_API_KEY="your-api-key"

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export LANGCHAIN_PROJECT="your-project-name"

3. Restart Langflow using langflow run --env-file .env
4. Run any project and check the LangSmith dashboard for monitoring and observability.