Freemium Observability AI Agents (2026)
These 15+ freemium observability AI agents let you start with a free tier and upgrade when usage or team needs grow. Compare the top listings by category fit, pricing model, access, popularity signals, and detailed product pages.
15 listings found
Maxim AI
Evaluate and improve AI Agents, faster
Confident AI
The DeepEval LLM Evaluation Platform
NOFireAI
The Incidents Resolution AI for SREs and on-call Engineers battling constant firefighting
Helicone AI
The all-in-one platform to monitor, debug and improve production-ready LLM applications.
Langfuse
LLM engineering platform for observability and metrics
Coval (YC S24)
A simulation and evaluation platform for AI agents
Future AGI
Most accurate evaluation agents that work across all modalities
Fiddler AI
Fiddler is the all-in-one AI Observability and Security platform for responsible AI.
LangSmith
Unified platform for debugging, testing, and monitoring LLM applications
KeywordsAI
A unified developer platform for LLM applications
Temperstack
Temperstack is a reliability automation product .
AgentOps
Leading AI Agent Observability Company
Weave
Lightweight toolkit for tracking and evaluating LLM applications
llm scout
LLM Scout tracks your brand across ChatGPT, Claude, Perplexity and Google AI Overviews
Quotient AI
Catch AI failures before your users do | Real-time AI monitoring for Search, RAG, and AI Agents
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