Code · Vendor site 2026-10-04
LangWatch is a platform for testing, evaluating, and observing LLM agents in production. It covers simulations, evals, tracing, prompt management, AI gateway routing, voice agent testing, and red-teaming with cloud or self-hosted deployment options.
Understand the total cost
Free
Free
Developer tier is free forever with 50k events per month, 14-day data access, two users, and community support; paid Growth seats are quoted in euros.
No retained pricing changes yet. A current price alone does not establish a historical trend.
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Yes. LangWatch has an ongoing free plan. Developer tier is free forever with 50k events per month, 14-day data access, two users, and community support; paid Growth seats are quoted in euros.
LangWatch is listed as free. No paid plan with a published price was found.
API or developer access is mentioned. Platform modules include an AI Gateway endpoint and observability APIs for tracing agent runs and costs.