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Funding

$22M (2025)

Kernel Technologies: Browser Infrastructure for AI Agents

Kernel provides “browsers-as-a-service” for AI agents and web automations, letting developers start headless or headful Chromium in the cloud by API. The platform emphasizes speed, reliability, and anti-bot resilience with persistent sessions, live debugging, and horizontal scale to hundreds or thousands of concurrent browsers.

  • Visit: [Kernel](https://www.onkernel.com) • [Docs & Quickstart](https://www.onkernel.com/docs/quickstart)
  • Why Kernel

  • **Crazy fast spin‑up** and **session persistence** for agent workflows
  • **Autoscaling** to many parallel browsers with **session reuse** across steps
  • **Anti‑bot detection handling** and safe authentication for logged‑in flows
  • **Deep observability**: live view, logs, and **session replays** for debugging and audits
  • **Chromium on unikernels** for improved cold‑start and isolation
  • Learn more: [Session Replays](https://www.onkernel.com/blog/introducing-browser-session-replays) • [Run Multiple Agents](https://www.onkernel.com/blog/run-multiple-browser-agents) • [Unikernels](https://www.onkernel.com/docs/info/unikernels)

    What Kernel Does

  • Launches cloud Chromium (headless/headful) via API or standard browser automation tools
  • Keeps sessions warm so agents can maintain login state and cookies across workflows
  • Scales horizontally with per-session isolation, fast cold starts, and replayable audits
  • Works out‑of‑the‑box with popular frameworks and LLM “Computer Use” patterns
  • Developer start points: [Playwright & Puppeteer Quickstart](https://www.onkernel.com/docs/quickstart)

    Core Features

  • **Fast spin‑up & parallelism**: Boot many browsers concurrently for agents and RPA
  • **Session reuse & persistence**: Carry auth and cookies across multi‑step flows
  • **Observability**: Live view, streaming logs, and **replays** for root-cause analysis
  • **Autoscaling**: Scale from single runs to fleets of agents on demand
  • **Anti‑bot resilience**: Infrastructure tuned for detection handling at scale
  • **Secure downloads**: Agent‑friendly file handling for portal scraping and exports
  • **Unikernel runtime**: Chromium packaged on unikernels for performance and isolation
  • Deep dives: [Session Replays](https://www.onkernel.com/blog/introducing-browser-session-replays) • [Parallel Agents Guide](https://www.onkernel.com/blog/run-multiple-browser-agents) • [Founder note on downloads](https://www.linkedin.com/posts/juecd_at-kernel-were-building-browsers-as-a-service-activity-7369010308708835328-M1A9)

    Integrations & Developer Tooling

  • **Automation frameworks**: [Playwright & Puppeteer](https://www.onkernel.com/docs/quickstart), Selenium examples in the [parallel agents guide](https://www.onkernel.com/blog/run-multiple-browser-agents)
  • **Agent frameworks**: [Stagehand](https://www.onkernel.com/docs/integrations/stagehand), [Notte](https://onkernel.com/docs/integrations/notte)
  • **Ecosystem**: [Val Town integration](https://onkernel.com/blog/introducing-kernel-x-val-town), [MCP server](https://www.onkernel.com/blog/introducing-kernel-mcp-server) for deploying from any MCP client
  • **LLM Computer Use**: Quickstart patterns in the [docs](https://www.onkernel.com/docs/quickstart)
  • Common Use Cases

  • **Lead prospecting and enrichment** with logged‑in browsing at scale: [Prospecting with browser agents](https://www.onkernel.com/blog/browser-agents-for-prospecting)
  • **Logged‑in workflows with MFA**, persistent sessions, and safe credential handling
  • **Price and availability monitoring** with **live view** and replay for audits: [Session Replays](https://www.onkernel.com/blog/introducing-browser-session-replays)
  • **Document downloads and portal scraping** with agent‑friendly downloads: [Founder note](https://www.linkedin.com/posts/juecd_at-kernel-were-building-browsers-as-a-service-activity-7369010308708835328-M1A9)
  • **High‑volume parallel agents** for data collection and form filling: [Run Multiple Agents](https://www.onkernel.com/blog/run-multiple-browser-agents)
  • Pricing & Free Tier

  • **Free developer tier** with monthly credits and limited concurrency
  • **Startup** plan starting at $200/month plus usage
  • **Enterprise** with custom terms; per‑GB‑second pricing is published
  • **SOC 2** is included for paid tiers
  • Details: [Pricing](https://onkernel.com/docs/info/pricing)

    Trust, Security, and Compliance

  • **SOC 2** for paid plans
  • Unikernel‑based isolation to limit blast radius across browser sessions
  • Session replays and logs to support auditability
  • Learn more: [Unikernels](https://www.onkernel.com/docs/info/unikernels) • [Session Replays](https://www.onkernel.com/blog/introducing-browser-session-replays)

    Company, Team, and Funding

  • **Backed by Y Combinator and Accel**; reported **$22M** raise (Oct 2025)
  • YC profile: [Kernel on YC](https://www.ycombinator.com/companies/kernel)
  • Funding coverage: [SiliconANGLE](https://siliconangle.com/2025/10/09/kernel-raises-22m-power-browser-infrastructure-ai-agents/)
  • Investor note: [Accel’s investment thesis](https://www.accel.com/noteworthies/our-investment-in-kernel-the-best-browser-infrastructure-for-agents)
  • **Founders**: Rafael Garcia and Catherine Jue
  • YC founders listing: [YC Company Page](https://www.ycombinator.com/companies/kernel)
  • Founder link: [Catherine Jue](https://www.catherinejue.com/kernel)
  • **Location**: San Francisco, CA (per YC)
  • **Team size**: ~8 employees (per [LinkedIn](https://www.linkedin.com/company/onkernel))
  • Positioning: “The best place in the world to deploy and scale AI web agents.”
  • Who It’s For

  • Teams building AI web agents that need **persistent, scalable cloud browsers**
  • Growth, operations, and RPA teams replacing brittle in‑house Selenium grids
  • Agent framework authors seeking a single API for browsers and session state
  • Getting Started

  • Read the [Quickstart](https://www.onkernel.com/docs/quickstart) for Playwright, Puppeteer, and LLM Computer Use patterns
  • Explore integrations: [Stagehand](https://www.onkernel.com/docs/integrations/stagehand), [Notte](https://onkernel.com/docs/integrations/notte), [Val Town](https://onkernel.com/blog/introducing-kernel-x-val-town), [MCP server](https://www.onkernel.com/blog/introducing-kernel-mcp-server)
  • Review [Pricing](https://onkernel.com/docs/info/pricing) and activate the free developer tier
  • See how to **run many agents in parallel**: [Guide](https://www.onkernel.com/blog/run-multiple-browser-agents)
  • Market Context & Comparables

  • Industry perspective on agent browser infrastructure and peers (e.g., Anchor, Browserbase, Steel, Hyperbrowser): [a16z on “Computer Use” and agentic coworkers](https://a16z.com/the-rise-of-computer-use-and-agentic-coworkers/)
  • Investor framing of Kernel as “the API that lets agents use the internet like people do”: [Accel note](https://www.accel.com/noteworthies/our-investment-in-kernel-the-best-browser-infrastructure-for-agents)
  • Community & Hiring

  • Careers: [Kernel Careers](https://www.onkernel.com/docs/careers/intro)
  • Social & community links available via [LinkedIn](https://www.linkedin.com/company/onkernel)
  • User Sentiment

  • As of now, no third‑party reviews available. See Kernel’s G2 page (0 reviews): [G2 listing](https://www.g2.com/sellers/kernel-ai)
  • Known Gaps to Evaluate

  • No verified public customer list in the provided sources
  • No third‑party reviews yet on Reddit, G2, or Capterra
  • SLA specifics not published in the linked materials
  • Primary Sources

  • Product, docs, pricing, unikernels, and blogs: [Website](https://www.onkernel.com) • [Pricing](https://onkernel.com/docs/info/pricing) • [Quickstart](https://www.onkernel.com/docs/quickstart) • [Unikernels](https://www.onkernel.com/docs/info/unikernels) • [Session Replays](https://www.onkernel.com/blog/introducing-browser-session-replays) • [Parallel Agents](https://www.onkernel.com/blog/run-multiple-browser-agents) • [Val Town](https://onkernel.com/blog/introducing-kernel-x-val-town) • [MCP Server](https://www.onkernel.com/blog/introducing-kernel-mcp-server)
  • Company & funding: [YC](https://www.ycombinator.com/companies/kernel) • [Accel](https://www.accel.com/noteworthies/our-investment-in-kernel-the-best-browser-infrastructure-for-agents) • [SiliconANGLE](https://siliconangle.com/2025/10/09/kernel-raises-22m-power-browser-infrastructure-ai-agents/)
  • Social: [LinkedIn](https://www.linkedin.com/company/onkernel)
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