93 listed
Observability & evals
Tracing, evals, guardrails and red-teaming tools for agents in production. Each page links to the vendor's own docs and pricing; compliance claims are what the vendor states, with the page it came from.
Showing 1–24 of 33
- 0.875score
Langfuse
Langfuse (ClickHouse)
Open-source platform for tracing, evaluating and improving AI agents
Observability toolAFreshness: A★ 36.4Ktracing - 0.868score
MLflow Tracing
MLflow (Linux Foundation)
Open-source platform for tracing, evaluating and managing prompts for agents, LLMs and ML models
Observability toolAFreshness: A★ 28.5Ktracing - 0.859score
Opik
Comet
Open-source LLM observability and evaluation platform with agent tracing and test suites
Observability toolAFreshness: A★ 22.9Ktracing - 0.822score
Arize Phoenix
Arize AI
Open-source tool to trace, evaluate and improve AI agents, run locally or self-hosted
Observability toolAFreshness: A★ 12Ktracing - 0.814score
OpenLLMetry
Traceloop (ServiceNow)
Open-source observability for LLM applications, built on OpenTelemetry
Observability toolAFreshness: A★ 7.5Ktracing - 0.806score
Helicone
Helicone
AI gateway and LLM observability platform for logging, debugging and routing LLM requests
Observability toolAFreshness: A★ 6.2Ktracing - 0.785score
Latitude
Latitude
Open-source, MIT-licensed platform for observing production AI agents and turning failures into tracked signals
Observability toolAFreshness: A★ 4.7Ktracing - 0.778score
Pydantic Logfire
Pydantic
Observability platform for AI apps covering model calls, agent steps, API requests and database queries in one trace
Observability toolAFreshness: A★ 4.5Ktracing - 0.771score
Judgment Labs
Judgment Labs
Continuous-improvement stack for agents: monitor behavior, detect failures and validate fixes
Observability toolAFreshness: A★ 1.1K↓ 77.7K/wktracing - 0.758score
Laminar
Laminar
Open-source observability platform for AI agents that detects failures and supports evals
Observability toolAFreshness: A★ 3.4Ktracing - 0.745score
OpenLIT
OpenLIT
Open-source agent harness engineering platform with OpenTelemetry tracing, evals and guardrails
Observability toolAFreshness: A★ 2.9Ktracing - 0.716score
W&B Weave
Weights & Biases (CoreWeave)
Toolkit for tracing and evaluating AI agents and LLM apps, built by Weights & Biases
Observability toolAFreshness: A★ 1.1Ktracing - 0.697score
AgentOps
AgentOps
Observability and dev-tool platform for building, evaluating and monitoring AI agents
Observability toolCFreshness: C★ 5.9Ktracing - 0.687score
Future AGI
Future AGI
Open-source observability for AI apps: traces LLM calls, prompts, retrieval and agent steps via OpenTelemetry
Observability toolAFreshness: A★ 249tracing - 0.596score
Lunary
Lunary
Platform for developers of AI chatbots and LLM apps, covering monitoring, prompts and analytics
Observability toolAFreshness: Atracing - 0.595score
Fiddler AI
Fiddler AI
Control plane for enterprise AI agents covering monitoring, evals, enforcement and governance
Observability toolAFreshness: Atracing - 0.595score
Raindrop
Raindrop
Monitoring platform for AI agents that discovers silent agent failures in production
Observability toolAFreshness: Atracing - 0.594score
Arize AX
Arize AI
AI engineering platform for observing, evaluating and improving AI agents
Observability toolAFreshness: Atracing - 0.594score
HoneyHive
HoneyHive
Agent observability platform for tracing, evaluating, monitoring and improving AI agents
Observability toolAFreshness: Atracing - 0.594score
PromptLayer
PromptLayer
Collaboration layer for AI engineering teams: prompt management, agent observability and evals
Observability toolAFreshness: Atracing - 0.592score
Honeycomb LLM Observability
Honeycomb
Connects prompts, model calls, tool use, cost and failures to help debug LLM apps and agents in production
Observability toolAFreshness: Atracing - 0.589score
Coralogix AI Observability
Coralogix
AI observability with real-time evaluators, dashboards, session tracing and cost tracking for AI agents
Observability toolAFreshness: Atracing - 0.587score
Elastic LLM Observability
Elastic
Monitor the performance, usage, cost and guardrails of LLM and agentic AI apps in Elastic Observability
Observability toolAFreshness: Atracing - 0.587score
New Relic AI Monitoring
New Relic
APM-based AI monitoring for end-to-end visibility into the performance, cost and quality of LLM apps
Observability toolAFreshness: Atracing