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What is Kitesurf?

Kitesurf is a cutting-edge browser specifically designed for AI agents, operating solely on Cloudflare Workers instead of relying on Chromium. This innovative browser addresses the fundamental needs of agents by emphasizing structured machine-readable content, efficient scalability, low CPU and memory usage, and secure interactions with potentially untrustworthy web pages, while deliberately omitting superfluous human-oriented features such as tabs, themes, extensions, or ultra-smooth scrolling. By treating each page load as potentially untrustworthy, Kitesurf begins every session in a pristine state, ensuring that components remain isolated and only access the resources essential for their functions. The architecture leverages native Rust compiled to WebAssembly wherever possible, consisting of three primary components: the Engine, PageScript, and PageRenderer. The Engine enables communication through Chrome DevTools Protocol WebSocket and REST APIs, while also managing session states, and PageScript handles the parsing of HTML and CSS, executing JavaScript, and running WebAssembly within isolated Workers. Kitesurf ultimately represents a progressive approach to browser design, fully catering to the distinctive requirements of AI-driven tasks, thus paving the way for enhanced efficiency in automated processes. This groundbreaking browser sets a new standard for how AI agents can safely and effectively interact with the web.

What is Agent Substrate?

Agent Substrate is an open-source runtime that enables the creation and management of isolated, stateful agent and code-execution sandboxes tailored for Kubernetes ecosystems. It efficiently oversees the lifecycle of actors and workers, directing active workloads to a shared pool of resources, and can pause inactive sandboxes while preserving their memory and filesystem states for later utilization. By leveraging gVisor or Cloud Hypervisor microVMs for enhanced isolation, these sandboxes are equipped with distinct identity and networking controls for every actor. This platform is specifically designed for infrastructure and platform teams engaged in developing services for agent hosting, coding environments, and other activities that may involve untrusted or intermittent execution. The core framework is built to be portable across Kubernetes, with Google Cloud offering specialized deployment tools that are fine-tuned for GKE. Furthermore, users have the option to incorporate Filestore agent volumes to ensure that workspaces remain intact and retrievable throughout suspension and resumption cycles, thereby increasing the reliability of the development environment. By enabling such capabilities, Agent Substrate proves to be an indispensable resource for contemporary cloud-native applications, empowering teams to streamline their operations and maximize efficiency in managing complex workloads.

Media

Media

Integrations Supported

CSS
Chrome DevTools
Chromium
Cloudflare
HTML
JavaScript
WebAssembly

Integrations Supported

Google Cloud Filestore
Google Cloud Platform
Model Context Protocol (MCP)

API Availability

Has API

API Availability

Has API

Pricing Information

$20
Free Version

Pricing Information

$0
Agent Substrate on GKE is offered at no extra charge. GKE pricing applies to the resources you create.
Free Version

Supported Platforms

SaaS

Supported Platforms

On-Prem
Linux

Customer Service / Support

Web-Based Support

Customer Service / Support

Not specified

Training Options

Documentation Hub
Webinars

Training Options

Documentation Hub

Company Facts

Organization Name

Cloudflare

Date Founded

2009

Company Location

United States

Company Website

blog.cloudflare.com/kitesurf/

Company Facts

Organization Name

Google

Date Founded

1998

Company Location

United States

Company Website

github.com/agent-substrate/substrate

Categories and Features

AI Browsers

Not specified

Categories and Features

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