Kernel

IDkernel03 / 8api.onkernel.com · 6 of 13

Provider / kernel

Kernel

Every read runs Playwright inside a browser it opens first.

Supports: 6 of 13 operations
Scrape: session
Needs: KERNEL_API_KEY
Endpoint: api.onkernel.com

operations 6 / 13

Operations

scrapesession
screenshotsession
elementno
pdfno
crawlno
linksno
a11y treeno
extractno
searchno
sessionsone call
cdpone call
navigatesession
evaluatesession

Recorded

Came back: raw HTML
Size: 12,363 characters
Time: 2,895 ms

<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><link rel="icon" href="data:,"><meta name="viewport" content="width=device-width,initial-scale=1"><title>Example Domain</title><style>html{color-scheme:light dark;background:light-dark(#eee,#222)}body{font:16px/1.6 system-ui,sans-serif;max-width:30em;min-height:100vh;margin:auto;padding:4.75em 2em 20vh;box-sizing:border-box;display:grid;place-content:center;text-align:center}</style></head><body><style>body{padding:2em 2em 20vh;place-items:center}svg{opacity:.55}p{grid-area:2/1}span{transition:opacity .4s}p+p span{opacity:0}@media(prefers-reduced-motion){*{transition:none}}</style><svg viewBox="0,0,20,20" width="44" height="44" fill="currentColor" aria-hidden="true"><path fill="none" stroke="currentColor" stroke-width="1.3" stroke-linejoin="round" d="M6 4H3v12q4 0 7 1.5-1-3.5-4-4.5V2q3.5 1 4 3v12.5q3-1.5 7-1.5V4q-4.5 0-7 1"></path><g transform="rotate(-6,13.6,8.3)"><path id="q" d="M11.5 6.6h1.8v1.8l-1 1.6-.6-.3.8-1.3h-1z"></path><use href="#q" x="2.4"></use></g></svg>This domain is for use in documentation examples without needing permission. This is not a service, avoid relying on it for testing and monitoring purposes.هذا النطاق مُخصص للاستخدام في أمثلة التوثيق دون الحاجة إلى إذن. هذه ليست خدمة، يُرجى تجنب الاعتماد عليها لأغراض الاختبار والمراقبة.该域名仅用于文档示例，无需获得许可。这并非一项服务，请勿将其用于测试和监控目的。L’usage de ce domaine est réservé à des exemples de documentation, sans autorisation préalable. Il ne s’agit pas d’un service ; son utilisation à des fins de test ou de surveillance est à éviter.Данный домен предназначен для использования в примерах документации без необходимости получения предварительного разрешения. Это не сервис; не рекомендуется его использование для тестирования и мониторинга.Este dominio está destinado al uso en ejemplos de documentación sin necesidad de permiso. Esto no es un servicio, evitar utilizarlo para realizar pruebas o monitoreos.<a href="https://iana.org/help/example-domains">Learn more</a><script src="/s.js"></script>

Access

Createcreate("kernel")

CLIbrowsers scrape https://example.com -p kernel

Toolprovider: "kernel"

Kernel doesn't have a scrape route. It has browsers. So scrape() sends a small Playwright script to /browsers/{id}/playwright/execute, page.goto then page.content(), and that's the scrape. No session, no scrape: it throws until you pass one.

The CLI and the tools handle that. They open a browser, scrape, and release it in finally. In the recording that round trip was the slowest of the lot, which is the price of a real browser per call. Also raw HTML, since that's what page.content() returns.

In exchange you get navigate and evaluate on a live session, and a CDP URL, so Kernel is a good fit when the scrape is only the first step.

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