Best AI Agent Observability Tools in 2026
Updated
32ranked
2free plans on this page
$0.01/molowest paid tier
8 Oct 2026last checked
Input list AI Agent Observability Tools 7 channels on this page · 18 of 56 spec lines stated by the makers
Ch Tool Free planPaid fromTrace retentionSession replayPrompt and tool tracingDeployment optionsAgent framework supportCost tracking Spec sheet Score
26 Hexel Free planYesPaid fromTrace retention30 daysSession replayYesPrompt and tool tracingDeployment optionscloudAgent framework supportsdkCost trackingYes 6/8spec lines stated 6.8
27 HoneyHive Free planYesPaid fromTrace retentionSession replayPrompt and tool tracingDeployment optionsAgent framework supportCost trackingYes 2/8spec lines stated 6.8
28 AgentOps Free planYesPaid from$40/moTrace retentionSession replayPrompt and tool tracingDeployment optionsAgent framework supportCost trackingYes 3/8spec lines stated 6.5
29 Amazon Nova ReelAmazon Web Services Free planPaid fromTrace retentionSession replayPrompt and tool tracingDeployment optionsAgent framework supportCost tracking 0/8spec lines stated 6.4
30 Lunary Free planNoPaid fromTrace retentionSession replayPrompt and tool tracingDeployment optionsAgent framework supportCost trackingYes 2/8spec lines stated 6.3
31 Amazon Bedrock Data AutomationAmazon Web Services Free planPaid fromTrace retentionSession replayPrompt and tool tracingDeployment optionsAgent framework supportCost tracking 0/8spec lines stated 6.2
32 Kosmoy AI Observability Free planNoPaid fromTrace retentionSession replayYesPrompt and tool tracingYesDeployment optionsAgent framework supportsdkCost trackingYes 5/8spec lines stated 6.2
Compare all 7 in a table
| # | Tool | Score | From | Free plan | Paid from | Trace retention | Session replay |
|---|---|---|---|---|---|---|---|
| 26 | Hexel | 6.8 | Free | Yes | 30 days | Yes | |
| 27 | HoneyHive | 6.8 | Free | Yes | |||
| 28 | AgentOps | 6.5 | $40/mo | Yes | 40 /mo | ||
| 29 | Amazon Nova Reel | 6.4 | |||||
| 30 | Lunary | 6.3 | $20/mo | No | |||
| 31 | Amazon Bedrock Data Automation | 6.2 | $0.01/mo | ||||
| 32 | Kosmoy AI Observability | 6.2 | No | Yes |