Browser BoltBYOK preview terms
Browser Bolt is an experimental open-source MCP server. It runs on your computer with a browser-capable host. That host observes pages, authorizes and executes actions, then checks the result. A model response of DONE alone does not prove a task succeeded.
Software license and costs
The downloadable software is under the MIT license. These website terms do not replace or limit that license. Browser Bolt does not charge a software fee for this BYOK preview. You supply provider keys and pay provider charges directly. A request may cost money even if it fails or is cancelled. This preview does not include a managed account, subscription, purchased credits, hosted browser, or uptime promise.
Testing and third-party sites
Start with public, synthetic data. Do not use passwords, authentication codes, confidential records, or health information in evaluation tasks. Browser pages and model output can be wrong or hostile. Check target identity, authorization, and final page state before relying on an action. Do not automatically retry an uncertain browser mutation. Third-party sites and providers have their own rules; Browser Bolt is not affiliated with Google or airlines shown in a demonstration.
Measurements
Speed and cost figures describe the linked synthetic tests, not a performance guarantee. The 9× speed and 35× cheaper comparison uses a historical Jev-through-OpenRouter plus Cerebras Qwen route against Claude Opus 5. “Cheaper” compares API spend only and excludes browser hosting and support. The separate Google Flights inset uses scripted provider decisions and is not part of that timed comparison. See the methods and results.
Support and privacy
Send a synthetic reproduction to rich@valentelabs.ai. Do not include keys or private page content. The privacy notice explains site, email, and provider data flows. Public pages and downloads may change or become unavailable; this does not alter the license of a copy you already received.