Kernel

Kernel is browser infrastructure for AI agents and automations. It runs sandboxed cloud Chromium browsers that spin up in under 30ms, with Playwright execution, computer-use controls, managed authentication into third-party sites, reusable browser profiles, proxies, pre-warmed browser pools, session replays, live telemetry, and a serverless App platform for deploying and invoking agent actions. Kernel exposes a REST API (OpenAPI 3.1, 135 operations across 22 tags), first-party TypeScript, Python and Go SDKs, a CLI, and a centrally hosted MCP server so agents can drive real browsers. Backed by General Catalyst.

Kernel publishes 1 API on the APIs.io network. Tagged areas include Company, Browser Automation, Web Agents, Browser Infrastructure, and AI Agents.

Kernel’s developer surface includes authentication, CLI, changelog, documentation, API reference, getting-started guide, support, and 25 more developer resources.

🌐 Visit website 📡 Source on GitHub
47.0/100 developing Agent 69/100 agent native Full breakdown ↓
scored 2026-07-20 · rubric v0.4
1 APIs 1 MCP Servers 0 Features
CompanyBrowser AutomationWeb AgentsBrowser InfrastructureAI AgentsPlaywrightCloud BrowsersComputer UseMCPManaged Auth

API Rating

API Evangelist API Evangelist Rating How this is scored →
scored 2026-07-20 · rubric v0.4
Composite quality — 47.0/100 · developing
Contract Quality 8.0 / 25
Developer Ergonomics 16.1 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 5.8 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 69/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/kernel: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs

Kernel API

Developer tools and cloud infrastructure for AI agents to use web browsers - create and control cloud Chromium sessions, run Playwright, manage profiles, proxies, pools, managed...

MCP Servers

kernel-mcp.yml

MCP SERVER

Arazzo Workflows

_Index

ARAZZO

Kernel - create a browser, run Playwright, screenshot, tear down

End-to-end cloud browser automation on Kernel.

ARAZZO

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 MCPServer
MCPServer
 WellKnown
WellKnown
 LLMsTxt
LLMsTxt
 AgentSkill
AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Conformance
Conformance
 ErrorCatalog
ErrorCatalog
 Lifecycle
Lifecycle
 DataModel
DataModel
 Arazzo
Arazzo

Build 4

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs
 CLI
CLI
 GitHubOrganization
GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 OAuthScopes
OAuthScopes
 TrustCenter
TrustCenter
 Compliance
Compliance

Operate 4

Status, limits, changes, and where to get help

Deprecation
Deprecation
 ChangeLog
ChangeLog
 Support
Support
 StatusPage
StatusPage

Commercial 1

Pricing, plans, and the legal terms of use

Pricing
Pricing

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: kernel
name: Kernel
description: Kernel is browser infrastructure for AI agents and automations. It runs sandboxed cloud Chromium browsers that
  spin up in under 30ms, with Playwright execution, computer-use controls, managed authentication into third-party sites,
  reusable browser profiles, proxies, pre-warmed browser pools, session replays, live telemetry, and a serverless App platform
  for deploying and invoking agent actions. Kernel exposes a REST API (OpenAPI 3.1, 135 operations across 22 tags), first-party
  TypeScript, Python and Go SDKs, a CLI, and a centrally hosted MCP server so agents can drive real browsers. Backed by General
  Catalyst.
image: https://www.kernel.sh/favicon.ico
url: https://raw.githubusercontent.com/api-evangelist/kernel/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- general-catalyst
x-tier: enriched
x-tier-reason: portfolio-lead-enriched
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Browser Automation
- Web Agents
- Browser Infrastructure
- AI Agents
- Playwright
- Cloud Browsers
- Computer Use
- MCP
- Managed Auth
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: Kernel API
  description: Developer tools and cloud infrastructure for AI agents to use web browsers - create and control cloud Chromium
    sessions, run Playwright, manage profiles, proxies, pools, managed auth, extensions, and deploy/invoke apps.
  humanURL: https://kernel.sh/docs/api-reference/
  baseURL: https://api.onkernel.com
  properties:
  - type: OpenAPI
    url: openapi/kernel-openapi-original.yml
  - type: Overlay
    url: overlays/kernel-openapi-overlay.yaml
common:
- type: AgenticAccess
  url: agentic-access/kernel-agentic-access.yml
- type: DomainSecurity
  url: security/kernel-domain-security.yml
- type: Authentication
  url: authentication/kernel-authentication.yml
- type: Packages
  url: packages/kernel-packages.yml
- type: SDKs
  url: packages/kernel-packages.yml
- type: CLI
  url: cli/kernel-cli.yml
- type: MCPServer
  url: mcp/kernel-mcp.yml
- type: WellKnown
  url: well-known/kernel-well-known.yml
- type: OAuthScopes
  url: scopes/kernel-scopes.yml
- type: Conventions
  url: conventions/kernel-conventions.yml
- type: Conformance
  url: conformance/kernel-conformance.yml
- type: ErrorCatalog
  url: errors/kernel-problem-types.yml
- type: Lifecycle
  url: lifecycle/kernel-lifecycle.yml
- type: Deprecation
  url: lifecycle/kernel-lifecycle.yml
- type: DataModel
  url: data-model/kernel-data-model.yml
- type: ChangeLog
  url: changelog/kernel-changelog.yml
- type: LLMsTxt
  url: llms/kernel-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: Arazzo
  name: Create a browser, run Playwright, screenshot, tear down
  url: arazzo/kernel-browser-automate.yml
- type: TrustCenter
  url: https://trust.kernel.sh
- type: Compliance
  url: https://www.kernel.sh/security
- type: Website
  url: https://www.kernel.sh
- type: DeveloperPortal
  url: https://kernel.sh/docs/
- type: Documentation
  url: https://kernel.sh/docs/
- type: APIReference
  url: https://kernel.sh/docs/api-reference/
- type: GettingStarted
  url: https://kernel.sh/docs/introduction/
- type: Support
  url: https://kernel.sh/docs/info/support
- type: Blog
  url: https://www.kernel.sh/blog
- type: GitHubOrganization
  url: https://github.com/kernel
- type: Pricing
  url: https://www.kernel.sh/pricing
- type: SignUp
  url: https://dashboard.onkernel.com
- type: StatusPage
  url: https://status.kernel.sh
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence