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Tracked since 2026

The Bottom Line

Price
From $29/mo, billed monthly (free plan available). Compare plans

Key facts

  • Provides comprehensive tracing for LLM agent behavior, capturing every decision and interaction.
  • Offers state-of-the-art evaluation metrics to detect agent uncertainty and score trajectories over long runs.
  • Enables proactive monitoring and regression detection with scheduled eval runs and alerts.

Pros

  • Open-source core allows for self-hosting and full control without limitations.
  • Provides deep visibility into agent behavior with detailed tracing and nested span hierarchies.
  • Advanced evaluation metrics help identify and address agent uncertainty and performance drift.
  • Seamless integration with popular agent frameworks and LLM providers minimizes setup effort.
  • Monitoring features enable proactive detection of regressions before they affect users.

Cons

  • Requires some technical knowledge for setup and instrumentation, especially for custom agents.
  • The full benefits of advanced monitoring and evaluation may require consistent integration into CI/CD pipelines.

What is PandaProbe Cloud?

PandaProbe is an open-source agent engineering platform designed to help developers build, evaluate, and monitor large language model (LLM) agents safely and effectively. It provides comprehensive tracing capabilities to capture every LLM call, tool invocation, and agent decision, offering deep insights into agent behavior. This detailed tracing forms the foundation for its state-of-the-art evaluation metrics, which are purpose-built for long-running agents to detect uncertainty, score trajectories, and pinpoint behavioral drift. The platform is ideal for developers and teams working with LLM agents who need to understand, debug, and improve their agent's performance. It enables users to catch regressions before they impact end-users by scheduling automated evaluation runs against production traffic and setting up alerts for metric regressions. PandaProbe integrates seamlessly with major agent frameworks and leading LLM providers, offering both cloud-hosted and self-hosted deployment options, and even provides a CLI and skill for coding agents to manage its features directly.

Key Features

  • Full agent trajectory tracing (LLM calls, tool invocations, decisions)
  • One-line instrumentation for major agent frameworks
  • Compatibility with various LLM providers
  • Research-grounded evaluation metrics for agent uncertainty
  • LLM-as-judge scoring with structured feedback
  • Evaluation of full agent sessions and lifecycles
  • Scheduled evaluation runs against production traffic
  • Alerts for metric regressions across agent versions

Pricing Plans

Pricing checked Oct 27, 2026. Source: pandaprobe.com/pricing, read Oct 27, 2026

PandaProbe Cloud plans and prices, checked October 2026
Plan Price Details
Hobby

$0 / forever

  • 100 base trace ingestion / mo
  • 100 trace eval runs / mo
  • 10 session eval runs / mo
+3 more
  • Human annotation
  • 1 seat
  • Community support via GitHub
Pro

$29 / month

  • Everything in Hobby +
  • 5k base traces / mo, then pay-as-you-go
  • 5K trace eval runs / mo, then pay-as-you-go
+3 more
  • 100 session eval runs / mo, then pay-as-you-go
  • 2 seats
  • Email support
Startup

$299 / month

  • Everything in Pro +
  • 50k base traces / mo, then pay-as-you-go
  • 50K trace eval runs / mo, then pay-as-you-go
+5 more
  • 1K session eval runs / mo, then pay-as-you-go
  • 10 seats
  • High rate limits
  • Private Slack channel
  • Data retention management
Enterprise

Custom

  • Everything in Startup +
  • Alternative hosting options (hybrid & self-hosted)
  • Custom SSO
+5 more
  • Access to dedicated engineering team
  • Support SLA
  • Team trainings & architectural guidance
  • Unlimited seats
  • Dedicated support
Open Source

Free

  • Apache 2.0 license
  • All core platform features and APIs
  • Scalability of PandaProbe Cloud
+3 more
  • Deployment docs
  • Community support
  • Customization options

Is PandaProbe Cloud worth the price?

Good value

PandaProbe Cloud offers a generous free tier and a well-structured progression for growing teams.

The Pro tier at $29/month provides significant value for individual developers or small teams, while the Startup tier at $299/month scales effectively for larger projects. This pricing seems fair and competitive, especially for teams prioritizing robust LLM agent development and monitoring.

Hidden Costs & Gotchas

Pay-as-you-go overage fees for traces/evals on Pro/Startup tiers.

Full PandaProbe Cloud pricing: every plan, hidden costs and alternatives

How PandaProbe Cloud's pricing compares

At $29/mo, billed monthly, PandaProbe Cloud is mid-range of its 3 comparable direct competitors ($19 to $199/mo across the set).

PandaProbe Cloud
$29

Entry paid plan, monthly price, billed monthly. Pricing checked Oct 27, 2026.

Email me when PandaProbe Cloud changes its price

One email per change, found on the vendor's own pricing page. Unsubscribe any time.

PandaProbe Cloud by the numbers

Toolradar data: PandaProbe Cloud's entry paid plan ($29/mo, billed monthly) ranks #1 of 15 for price among the AI Observability tools with a verified entry price and no stated unit, where the median is $60/mo. As of Nov 2026.

PandaProbe Cloud compared with 51 AI Observability tools on Toolradar, as of Nov 2026
Metric PandaProbe Cloud Peer median Position (1 is best)
Entry paid plan $29/mo, billed monthly $60/mo #1 of 15 tools with no stated price unit, verified price
Free plan Yes 61% have one n/a
Listed as an alternative to 1 tool 3 #33 of 51 (joint)

Listed as an alternative to: #27 on 2026-10-16 to #33 on 2026-11-02 (rank among 51 tools, 1 is best).

Each position is counted among the tools that have data for that row, as noted under it. A lower entry price ranks higher; prices are read on vendor pages and compared only with tools priced on the same basis. All AI Observability data · How we compute this. Advertising and placement fees are not inputs to any position.

Cite this: Toolradar, “PandaProbe Cloud by the numbers”, Nov 2026.

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PandaProbe Cloud FAQ

How does PandaProbe Cloud help in testing and quality assurance for AI agents?

PandaProbe Cloud provides advanced evaluation metrics specifically designed for long-running agents, helping to detect uncertainty, score trajectories, and pinpoint behavioral drift. It enables users to schedule automated evaluation runs against production traffic and set up alerts for metric regressions, catching issues before they impact end-users.

What kind of user or team benefits most from PandaProbe Cloud?

PandaProbe Cloud is ideal for developers and teams working with LLM agents who need to understand, debug, and improve their agent's performance. It is particularly useful for those who require deep insights into agent behavior and robust evaluation capabilities.

How does PandaProbe Cloud compare to LangWatch for monitoring LLM agents?

PandaProbe Cloud offers comprehensive tracing capabilities to capture every LLM call, tool invocation, and agent decision, providing deep insights into agent behavior. It also features advanced evaluation metrics purpose-built for long-running agents to detect uncertainty and behavioral drift, alongside seamless integration with major agent frameworks and LLM providers.

What are the main trade-offs when implementing PandaProbe Cloud?

Implementing PandaProbe Cloud requires some technical knowledge for setup and instrumentation, particularly for custom agents. Additionally, realizing the full benefits of its advanced monitoring and evaluation features often necessitates consistent integration into CI/CD pipelines.

Does PandaProbe Cloud include a free tier?

Yes, PandaProbe Cloud is available on a free tier. Paid plans are offered for users requiring more usage and additional features beyond the free offering.

Can PandaProbe Cloud integrate with existing agent frameworks and LLM providers?

Yes, PandaProbe Cloud integrates seamlessly with major agent frameworks and leading LLM providers. This minimizes setup effort and allows for deep visibility into agent behavior with detailed tracing and nested span hierarchies.

How does PandaProbe Cloud provide deep visibility into agent behavior?

PandaProbe Cloud offers comprehensive tracing capabilities that capture every LLM call, tool invocation, and agent decision. This detailed tracing forms the foundation for understanding and debugging agent performance, providing deep insights into how agents operate.

How does PandaProbe Cloud pricing compare with other AI Observability tools?

PandaProbe Cloud's entry paid plan ($29/mo, billed monthly) ranks #1 of 15 for price among the AI Observability tools with a verified entry price and no stated unit, where the median is $60/mo. Prices are read on each vendor's own pricing page and compared only with tools priced on the same basis. Source: Toolradar, Nov 2026.

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