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The harder your agents get, the more you need LangWatch.
LangWatch — the measurement layer for AI agents
LangWatch is the open-core platform to test, evaluate, and monitor LLM agents end-to-end. Unlike tools that grade single LLM outputs, LangWatch is built for agent complexity multi-turn, multi-step, multi-agent systems where failure hides in the interactions.
Founder
langwatch
Launch Date
July 17, 2026
Launch Tags
Pricing
Free
LangWatch launched on What Launched Today on July 17, 2026. Ranked #18 of 41 launches on July 17, 2026. Tagged as evaluations. Community upvotes: 1. The harder your agents get, the more you need LangWatch.
54/100
LangWatch: AI Agent Testing, Observing & Evaluation
Product Hunt · March 12, 2024
LangWatch Competitors & Alternatives (2026)
Product Hunt · April 24, 2024
We built an MCP server for LangWatch so Claude can write and push your evals here's what happened when real teams tried it
Reddit · March 10, 2026
Show HN: Langy, an automated AI engineer (we gave it a robot body) [video]
Hacker News · July 22, 2026
Show HN: Evals Skills
Hacker News · March 23, 2026
LangWatch: OpenTelemetry-Native LLM Observability Without the Vendor Lock-In
Hacker News · March 10, 2026
LangWatch: A UI for DSPy
Hacker News · December 19, 2024
LangWatch: A UI for DSPy
Hacker News · December 8, 2024
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