langtrace
VerifiedOpenTelemetry-based observability for LLM applications in Python and TypeScript.
What is langtrace?
Langtrace is an open-source observability solution built on OpenTelemetry for monitoring LLM applications from start to finish.
It supplies real-time tracing together with evaluations and metrics that cover popular LLMs, frameworks, and vector databases.
Developers working in Python or TypeScript can add it to gain visibility into their LLM stacks.
What you can build with langtrace
LLM tracing
Capture detailed traces of calls made to large language models during runtime.
Performance evaluation
Run evaluations on LLM outputs to measure quality and consistency.
Vector database metrics
Collect metrics from vector databases used alongside LLM frameworks.
Install langtrace
# For TypeScript/JavaScript
npm i @langtrase/typescript-sdk
# For Python
pip install langtrace-python-sdk- 1Install the package for your language via pip or npm.
- 2Import the Langtrace client in your Python or TypeScript code.
- 3Initialize the client with your project credentials.
- 4Wrap your LLM calls to begin automatic tracing.
- 5View traces, evaluations, and metrics in the dashboard.
langtrace: pros & cons
Pros
- +Fully open-source with no vendor lock-in
- +Built on the OpenTelemetry standard for broad compatibility
- +Covers tracing, evaluations, and metrics in one tool
- +Supports both Python and TypeScript integrations
Cons
- –Requires manual integration into existing codebases
- –Limited to languages explicitly listed (Python and TypeScript)
- –No built-in support mentioned for other programming languages
Frequently asked questions
An open-source, OpenTelemetry-based tool that provides end-to-end observability for LLM applications.
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