01
Agent developers
Inspect agent behavior on pages.
See where your agent’s web task breaks down
Run the same web task with your own agent versions under comparable conditions. Compare their actions and outcomes in your evaluation system, then inspect completed session records to find the first divergent or failed step.
Agent versions
Controlled tasks
Run evidence
Evidence for agent evaluation
Use the same task and expected result for each version; compare the path as well as the outcome.
01
Define the task
Fix the site, instructions, and expected outcome in your own evaluation workflow.
02
Run each version
Start separate temporary browser sessions and record the supported settings used.
03
Compare paths
Use your own metrics and completed session records to find different actions or results.
04
Inspect the failure
Review page, log, and network details after an API call ends; replay only if recording was enabled before the run.
Two versions, one web task
Two agent versions attempt the same authorized form task. One reaches the confirmation; the other follows a different link.
01
Version A
Reached confirmation page
02
Version B
Navigated to wrong detail page
03
Divergence
First different action at step 03
Browser evidence for your own evaluation system
Nstdata provides the remote browser and supported session controls. Your own code, agent, or tool directs the task.
Bring your own agents
Connect through CDP, API, or MCP while your system defines tasks and scoring.
Control the conditions
Apply supported browser and access settings across versions.
Review completed runs
Use page, log, and network details generated after an API call ends.
Replay selected tasks
Enable recording before a run to replay available content later.
Built for teams working on this task
Connect the browser to the workflow you already use, then keep the result and evidence in your own system.
02
Evaluation engineers
Compare versions with their own metrics.
03
AI platform teams
Provide browser access to internal agents.
04
Developer tooling teams
Investigate agent-browser failures.
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Frequently Asked Questions
Learn how Cloud Browser supports your workflow.
No. Your system defines tasks, metrics, and comparisons. Cloud Browser provides the execution environment and available session evidence.
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