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Hronaut Review

Hronaut is a local, visible Multi-Agent Communication Protocol (MCP) execution layer that connects agent frameworks with websites, allowing users to maintain context and control.

shipped Sep 16, 2026agentsfreemium
agentswritingproductivity

Why it matters

1Offers a 10-day free trial with full functionality, no credit card required.
2Subscription pricing is $4 per month or $24 per year per named user, allowing three devices per seat.
3The latest version, v1.13.1, enables users to fork active or archived workspaces.
4Functions as a local Electron/Chromium desktop application with a local Streamable HTTP MCP endpoint.

About Hronaut

Business Model
Subscription SaaS
Platforms
Windows, macOS, Linux
Target Audience
Developers and users of coding agents

Pricing Plans

10-day trial
$0 / 10 days
  • • Full functionality for 10 days
  • • No credit card required
Subscription seat
$24 / annual
  • • Personal and commercial use by one named user
  • • Up to 3 active devices
  • • Updates while the subscription is active
GitHubOpen Source

Specs

GitHub

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Screenshots

overview

What is Hronaut?

Hronaut is an AI tool developed by Hronom that enables coding agents and developers to maintain persistent browser context and control during automated web interactions. It functions as a local, visible Electron/Chromium desktop application with a local Streamable HTTP Multi-Agent Communication Protocol (MCP) endpoint, designed to provide a stable environment for agent workflows.

features

Key Features of Hronaut

Hronaut provides a suite of features designed to enhance the reliability and control of AI agent interactions with web environments. Its core functionality centers on maintaining browser state and offering human oversight.

  • Local, visible MCP execution layer for agent frameworks.
  • Persistent Chromium browser environment for coding agents.
  • Maintenance of workflow context, authenticated sessions, tabs, cookies, and local storage across agent sessions.
  • Isolated workspaces for different tasks, each with independent browser state.
  • Human visibility and control over agent operations, including inspection of console errors, network requests, and screenshots.
  • Ability for human takeover of browser control for manual intervention (e.g., 2FA, CAPTCHAs, sensitive writes).
  • Facilitates agent recovery from authentication expiry or ambiguous write operations.
  • Supports multiple agent frameworks for diverse automation needs.
  • Version v1.13.1 allows forking of active or archived workspaces, copying cookies and local storage.

use cases

Who Should Use Hronaut?

Hronaut is primarily designed for developers and users of AI coding agents who require a stable, persistent, and observable browser environment for their automated tasks. Its capabilities address common challenges in agentic workflows, particularly those involving web applications.

  • Coding Agents: For maintaining tabs, sign-ins, and context across tasks in web-based workflows.
  • Developers: For local QA workflows, debugging agent interactions, and ensuring persistent browser state during development.
  • Personal Users: For automating complex browser-based tasks requiring real browser interaction, such as sign-ups and logins.
  • Educational Users: For demonstrating and controlling agent operations in a visible environment.
  • Businesses and Teams: For enabling human visibility and control over agent operations, especially before consequential write operations or for handling authentication challenges.

how to use

How to Use Hronaut

Hronaut operates as a local desktop application, providing a persistent browser environment that agents can interact with via its local Streamable HTTP MCP endpoint. Users initiate agent tasks within this controlled environment.

  • 1Download and install the Hronaut desktop application (available for Windows, macOS, Linux).
  • 2Launch Hronaut to establish the local persistent Chromium browser environment.
  • 3Configure your AI agent framework to connect to Hronaut's local Streamable HTTP MCP endpoint.
  • 4Create named workspaces within Hronaut to isolate different agent tasks and their browser states.
  • 5Initiate agent operations, observing the agent's actions within the visible Hronaut browser.
  • 6Utilize human takeover functionality for manual intervention when necessary, such as for authentication or complex UI interactions.

pricing

Hronaut Pricing & Plans

Hronaut offers a freemium model, beginning with a trial period followed by a subscription for continued use. Pricing is structured per named user, with an option for an annual discount.

  • 10-day Trial: $0.00 (Full functionality, no credit card required, starts from the first agent tool call).
  • Subscription Seat (Monthly): $4.00 per month per named user (Allows up to three devices per seat).
  • Subscription Seat (Annual): $24.00 per year per named user (Offers a 50% discount compared to the monthly rate, allows up to three devices per seat).
  • Subscriptions are managed through Creem, handling checkout, billing, and licensing.

Pros

  • +Provides persistent browser state (tabs, sign-ins, cookies) for AI agents, eliminating repeated authentication.
  • +Offers isolated, named workspaces to prevent interference between different agent tasks.
  • +Enables human visibility and control over agent operations, including inspection and manual takeover.
  • +Functions as a local desktop application, enhancing data control and privacy.
  • +Facilitates agent recovery from authentication expiry or ambiguous write operations.
  • +Offers a 10-day free trial with full functionality, allowing thorough evaluation.

Cons

  • −Requires a subscription after the 10-day trial for continued use.
  • −API is not available, limiting programmatic integration beyond the MCP endpoint.
  • −As a local application, it requires local resource management and setup.
  • −The human-in-the-loop aspect, while a strength, can introduce manual steps into otherwise automated workflows.

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