LangWatch

LLM monitoring and optimization platform

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About LangWatch

LangWatch provides a monitoring and optimization platform for LLM applications with tracing, evaluations and guardrails. Day to day, it supports automated quality checks on live traffic and optimization loops that improve prompts from real failures. It is aimed at builders who need agents that stay observable, controllable and useful once real users and real data are involved every day.

LangWatch key facts

Category: AI Agents
Pricing: Freemium — a free tier lets you start, and paid plans are available if you need more.
Focus areas: monitoring, evals, guardrails
Official site: langwatch.ai

About the AI Agents category

Autonomous AI agents that plan and execute tasks for you — general agents, AI browsers, AI employees, app builders, and coding agents. The AI Agents category on Tools Hub currently lists 156 tools. Alongside LangWatch, it includes Arize Phoenix, Promptfoo, Vellum, Agenta.

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More in AI Agents

Comparing tools in the AI Agents category? These related listings are worth a look: Arize Phoenix — Open-source AI observability for tracing and evals; Promptfoo — CLI for testing and red-teaming LLM applications; Vellum — Platform for building and evaluating AI workflows.