langwatch
LangWatch is an open-source platform designed to help teams build, evaluate, and monitor AI agents with complete visibility and control. It supports collaboration between technical and non-technical users to catch edge cases, reduce rework, and optimize AI quality before production deployment.
langwatch is ai agents software teams evaluate for creative & design. Use this page to review pricing, integration signals, and the best alternatives before you commit.
Used in These Packs
Quick Overview
Best for: Creative & Design
What it does
AI Agents software for decision-makers comparing workflow fit and alternatives.
Best fit
Creative & Design
Pricing snapshot
Free
Next step
Compare langwatch with similar tools before you shortlist it.
Compare this tool before you shortlist it
Review alternatives, pricing posture, and workflow fit side by side.
langwatch
LangWatch is a comprehensive AI agent testing and evaluation platform that enables teams to simulate AI agents, track responses, and catch failures before production. It provides built-in tools for data selection, evaluation, and testing, allowing teams to move quickly while maintaining control over AI quality. The platform supports collaboration across roles including AI engineers, data scientists, product managers, and domain experts, empowering both technical and non-technical users to contribute to AI quality assurance. LangWatch is fully open-source and can be run locally or self-hosted, ensuring no data lock-in and seamless integration with existing AI stacks.
LLM observability and evaluation platform for monitoring, evaluating, and optimizing LLM applications.
Own this listing?
Claim this page to add pricing, features, screenshots, and verified owner details.
Claim this listingKey Features
Agent Simulation
Simulate AI agents to test their behavior and catch edge cases before deployment.
Evaluations and Testing
Built-in tools for running evaluations, managing datasets, and testing AI models.
Collaborative Platform
Enables both technical and non-technical team members to collaborate on experiments, prompt management, and annotation.
OpenTelemetry Integration
Native support for OpenTelemetry to integrate with all LLMs and AI agent frameworks.
Self-Hosted and On-Premise Options
Supports deployment on-premises, in VPCs, air-gapped, or hybrid environments.
Role-Based Access Controls
Enterprise-grade security with role-based access and compliance with GDPR and ISO27001.
Optimization Studio with DSPy
Advanced tools for optimizing AI agents and workflows.
Data Export and Interoperability
No data lock-in with the ability to export data and integrate with other tools.
Pricing
LangWatch offers a fully open-source platform that can be self-hosted, allowing free access to core features without vendor lock-in.
Use Cases
Design Smarter AI Agents
Use simulations and evaluations to design AI agents based on evidence rather than guesswork.
Evaluate Retrieval-Augmented Generation (RAG) Quality
Test and measure the quality of RAG models to ensure accurate and reliable outputs.
Test Multimodal Voice Agents
Simulate and evaluate voice-based AI agents across multiple interaction turns.
Manage AI Quality Control
Reduce rework and manage regressions by continuously monitoring and optimizing AI performance.
Integrations
OpenTelemetry
Enables native integration with all LLMs and AI agent frameworks for telemetry and monitoring.
Python SDK
Allows programmatic access to LangWatch features for AI engineers.
JavaScript/TypeScript SDK
Enables integration with web and agent frameworks using JS/TS.
AI Frameworks
Supports integration with LangChain, LangGraph, Pydantic AI, AWS BedRock, AgnoCrew AI, and others.
Benefits
Limitations
Frequently Asked Questions
How does LangWatch work?
What is LLM observability?
Is LangWatch self-hosted available?
Can I try LangWatch for free?
How does LangWatch handle security and compliance?
Getting Started
- 1 Step 1: Sign up and book a demo or access the platform.
- 2 Step 2: Integrate LangWatch with your AI agents using the Python or TypeScript SDKs.
- 3 Step 3: Start running simulations, evaluations, and monitoring AI agent responses.
- 4 Step 4: Collaborate with your team using the UI to manage prompts, datasets, and annotations.
- 5 Step 5: Optimize AI agents using the built-in Optimization Studio.
Support
Documentation
Comprehensive docs available at https://langwatch.com/docs
Demo Booking
Schedule a demo via the website to get personalized support.
Community & GitHub
Open-source project with community support via GitHub repository.
API
API and SDK documentation available at https://langwatch.com/docs/integrations
Not publicly specified
Compare langwatch with similar tools
See how it stacks up against alternatives
Related Tools
View all 336 →
triorama-ai
Triorama is an AI-driven platform that empowers eCommerce companies with 3D configurators for seamless product personalization, enhancing sales and customer engagement.
textcortex-ai
TextCortex is a secure, enterprise-grade AI knowledge base software that enables organizations to deploy AI agents for automating workflows, managing knowledge, and enhancing content creation with advanced AI models and GDPR-compliant infrastructure.
Verdent Deck
Verdent Deck is a MacOS desktop app that enables developers to run multiple AI agents in parallel with full oversight, managing tasks asynchronously to deliver production-ready code smoothly with clear project overview and progress tracking.
Whatshouldido
What should I do? is an AI-driven service from GAJIX that helps users explore life and career directions through a short questionnaire and personalized suggestions for a one-time fee of $5.
talkforce-ai
TalkForce AI is an AI-powered customer care solution that automates routine inquiries, appointment scheduling, and customer support with intelligent voice agents, providing 24/7 seamless service and enhancing customer satisfaction for businesses across various industries.
Premium Alternatives
Soulmatedrawing
Soulmate Drawing generates a personalized soulmate sketch by combining your birth details, astrological archetypes, and an AI artist to create a hand-drawn style digital portrait for entertainment and self-reflection.
style-ai
Conversion (formerly StyleAI) is an enterprise AI marketing platform designed to automate and optimize SEO, Google Ads, and marketing automation workflows. It empowers businesses with AI-driven tools for backlink building, competitor analysis, review management, and listing management to accelerate organic traffic and improve marketing efficiency.
ai-experts-top
aiexperts.top is a premium domain name currently for sale, offering a simple and secure way to purchase or lease domain names through GoDaddy's platform.