Laminar

Laminar is an open-source observability platform designed to help developers debug and evaluate AI agents.

Free + paidWebOpen sourceLLM-based

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Overview

Laminar is an open-source observability platform designed to help developers debug and evaluate AI agents. It provides comprehensive tracing to understand failure points, evaluation frameworks for assessing performance, and signal extraction capabilities to manage data at scale. Targeted at AI engineers and software teams, it integrates easily with existing AI frameworks. Pricing includes a free tier with 1GB data retention, alongside paid plans starting from the Hobby tier at $25/month for extended usage.

Key features

Agent tracing and debugging
Performance evaluations
Signal extraction from traces
SDK integration

Pros & cons

Collected from user feedback found in web search

Pros

Fast, reliable, and constantly improving
Easy to set up and get started, very intuitive
Customer service is responsive and helpful
Integration options work perfectly with different stacks
Fully open-source and easy to self-host
OpenTelemetry-native tracing with 1 line of code

Pricing

Free + paidStarting price: US$30/mo

View pricing page

Verified on: 9/6/2026

Use cases

Debugging agent failures
Evaluating LLM performance
Observing agent workflows

Who it is for

AI developersengineering teams

Integrations

OpenAIAnthropicLangChainLiteLLMPython SDK

How we verified this

Company, pricing, and feature details come from the primary sources below and our latest verification pass. When sources disagree, the official source and the most recent check win.

Last verified 09/06/2026Verified sources: 2