HyperAgent (Hyperbrowser) alternative for natural-language browser automation
Kane CLI is the HyperAgent alternative. No framework to wire up and no model keys, just natural-language flows that drive a real browser, self-heal, verify pass or fail, and export to Playwright. Browser Cloud scales the browsers. Free to install.
or read the documentation
Why teams move from HyperAgent to Kane CLI
HyperAgent is an open-source natural-language agent framework with page.ai, page.perform, page.extract, action caching, and a CLI, and it falls back to plain Playwright and scales to Hyperbrowser. It is a capable framework, but it is a framework you wire into code, with your own model and the verdict left to you.
Kane CLI is a single CLI with a managed model and no keys. A natural-language objective drives a real browser, autoheals, and returns a verified pass or fail with NDJSON and clean CI exit codes, with cached replay so re-runs cost no repeat LLM tokens.
Browser Cloud is the infrastructure answer, the cloud Chrome that scales the runs, the way HyperAgent scales to Hyperbrowser.
Kane CLI vs HyperAgent
Both are natural-language browser automation. Kane CLI is a managed CLI with a verdict, not a framework.
| Capability | Kane CLI + Browser Cloud | HyperAgent |
|---|---|---|
| Multi-step | Natural-language objectives, resilient runs | page.ai multi-step |
| Single action | Action objectives | page.perform single action |
| Extraction | store-as extraction into final_state | page.extract plus schema |
| Action caching | Cached test.md replay | Action caching |
| Model and API keys | Managed model, nothing to configure | Bring your own model |
| Verified pass or fail | Pass or fail, NDJSON, CI codes | |
| Native Playwright export | One command | Falls back to plain Playwright |
What you get with Kane CLI
Everything the framework leaves to your code, handled by one CLI.
No code, no keys
Skip the SDK wiring and the model and API key setup. Install one CLI, describe the journey in natural language, and Kane CLI drives a real browser with a managed model.
Resilient by default
When the frontend changes, Kane CLI adapts on its own, pushing through up to 50 steps until the full journey is verified instead of breaking on a moved element.
Verified pass or fail
Built-in assertions check each step, not just the final screen, and flag the exact point of failure. A real result, not raw agent output to parse.
Replay and caching
Validated flows replay from a cached test.md with no repeat LLM cost, so re-running the suite in CI does not keep burning tokens.
Cross-browser cloud and CI
Scale to cross-browser and cross-OS runs on the TestMu AI grid with one flag, and gate pipelines on clean exit codes from your terminal.
Own the Playwright code
Export any validated flow to native Playwright with one command, then modify and own it. The convenience never locks you in.
Build up confidence locally
Start in your terminal
Validate on the cloud
Release with confidence
Scale on Browser Cloud
Need the browsers too? Browser Cloud is the TestMu AI infrastructure layer: real, full-featured Chrome sessions on demand at scale, with a built-in tunnel to localhost and staging, full session transparency, persistent state, and best-effort stealth.
Install it with npm install @testmuai/browser-cloud. Kane CLI connects to Browser Cloud sessions over --ws-endpoint, so the same natural-language flow runs on real cloud browsers and scales across them.
Browser Cloud is the browsers. Kane CLI is the natural-language verification that runs on them and returns a pass or fail.
From prototype to production, on one engine
Kane CLI and KaneAI share the same automation engine and dashboard.
Prototype to production
Open-source agents and SDKs are great for prototyping. Kane CLI is the production-grade, test-focused path: assertions, caching, evidence, and CI built in.
Built for the agent loop
Generate code, then verify it in a real browser before opening a PR. Kane CLI closes the gap between what an agent writes and what works.
Evidence you can share
Every run produces a persistent video, step trace, and replay link to drop into a PR or bug report, backed by a dashboard your team can browse.
Replace HyperAgent in three steps
Install
Run npm install -g @testmuai/kane-cli, then sign in with your TestMu AI account. No project to scaffold and no API keys to manage.
Describe the flow
Tell Kane CLI what to do in natural language, or point your AI coding agent at the agent guide and let it drive the browser.
Run and verify
Kane CLI drives a real browser, verifies each step, and returns a pass or fail with video proof. Re-runs replay from cache with no repeat LLM cost.
Get Started With Kane CLI
🎉 Launch offer: Bonus credits for the first 3 months on paid plans
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Local test authoring via CLI
Auto-heal & vision
View test cases on UI
Test Manager
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Launch: 4,000 Credits (+100%)
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Pro
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Launch: 15,000 Credits (+50%)
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Choose the right plan for you
Free
$0
/month
200 Credits
Resets in every
30 days
Starter
$19
/month
2000 Credits
Launch: 4,000 Credits (+100%)
Bonus for first 3 months
Pro
$99
/month
10,000 Credits
Launch: 15,000 Credits (+50%)
Bonus for first 3 months
Enterprise
Get access to solutions built on Enterprise-Grade Security, Privacy, and Compliances.
Need more credits?
Got a bigger use case in mind?
Let’s talk
Get the technical rundown
Documentation
Everything you need to install, configure, and run Kane CLI in under 2 minutes.
Frequently asked questions
Kane CLI by TestMu AI is the leading HyperAgent alternative. HyperAgent is a natural-language agent framework you wire into code with your own model. Kane CLI is a single managed CLI: natural-language objectives, a managed model with no keys, autoheal, a verified pass or fail with NDJSON and CI exit codes, and one-command Playwright export, with Browser Cloud to scale the browsers.
HyperAgent is an open-source, MIT-licensed agent framework from Hyperbrowser with page.ai, page.perform, page.extract, and executeTask, plus a CLI, an MCP client, and action caching. It falls back to plain Playwright and scales to the Hyperbrowser cloud.
Kane CLI is a managed CLI rather than a framework: a managed model with no keys, autoheal with confidence-scored matching, a real pass or fail with NDJSON and clean CI exit codes, cached test.md replay, and one-command native Playwright export.
Browser Cloud is the TestMu AI cloud browser infrastructure: real Chrome at scale with a built-in tunnel, full session transparency, and best-effort stealth. Kane CLI runs on Browser Cloud sessions over --ws-endpoint, the way HyperAgent scales to Hyperbrowser.
Teach your agent the right skills
Point your AI coding agent at the Kane CLI guide and it will install, authenticate, and run verified browser flows on its own, no SDK or API keys required.
Point your agent to: testmuai.com/kane-cli/agents.md