Back to all Observability AI agents

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 logo

Maxim AI

Evaluate and improve AI Agents, faster

FreemiumClosed SourceTechnology
Confident AI logo

Confident AI

The DeepEval LLM Evaluation Platform

FreemiumOpen SourceTechnology
NOFireAI logo

NOFireAI

The Incidents Resolution AI for SREs and on-call Engineers battling constant firefighting

FreemiumClosed SourceTechnology
Helicone AI logo

Helicone AI

The all-in-one platform to monitor, debug and improve production-ready LLM applications.

FreemiumOpen SourceTechnology
Langfuse logo

Langfuse

LLM engineering platform for observability and metrics

FreemiumOpen SourceTechnology
Coval (YC S24) logo

Coval (YC S24)

A simulation and evaluation platform for AI agents

FreemiumClosed SourceTechnology
Future AGI logo

Future AGI

Most accurate evaluation agents that work across all modalities

FreemiumAPIHorizontal
Fiddler AI logo

Fiddler AI

Fiddler is the all-in-one AI Observability and Security platform for responsible AI.

FreemiumClosed SourceHorizontal
LangSmith logo

LangSmith

Unified platform for debugging, testing, and monitoring LLM applications

FreemiumClosed SourceTechnology
KeywordsAI logo

KeywordsAI

A unified developer platform for LLM applications

FreemiumClosed SourceHorizontal
Temperstack logo

Temperstack

Temperstack is a reliability automation product .

FreemiumAPITechnology
AgentOps logo

AgentOps

Leading AI Agent Observability Company

FreemiumOpen SourceHorizontal
Weave logo

Weave

Lightweight toolkit for tracking and evaluating LLM applications

FreemiumOpen SourceTechnology
llm scout logo

llm scout

LLM Scout tracks your brand across ChatGPT, Claude, Perplexity and Google AI Overviews

FreemiumOpen SourceHorizontal
Quotient AI logo

Quotient AI

Catch AI failures before your users do | Real-time AI monitoring for Search, RAG, and AI Agents

FreemiumAPIHorizontal

Newsletter

Stay Ahead of the Curve

Get curated AI agent updates delivered to your inbox

No spam. Unsubscribe anytime.

Tell me the task — I'll narrow the agent shortlist.