Sandbox profile · Hosted platform

Anchor Browser

Answer in brief

Cloud browsers for agents with a dedicated VM per browser, managed authentication identities, persistent volumes and a Web-Bot-Auth-verified Chromium fork. The strongest isolation story in this group, a dedicated VM per browser, paired with managed authentication for enterprise agents.

By the Agent Sandboxes editors · Updated November 9, 2026

Overview

Anchor Browser is a cloud browser platform from Anchor, an Israeli company, aimed at agents that must sign in to real applications. Every browser runs in its own dedicated virtual machine that is never reused between sessions or customers (the hypervisor is not named). You control sessions over CDP with Playwright or Puppeteer, or through the REST API and the anchorbrowser TypeScript and Python SDKs, and an MCP server exists in hosted and open-source forms. Anchor Chromium is a stealth fork, and Cloudflare and 1Password are listed as partners.

The distinctive layer is managed authentication: Identities hold credentials, MFA secrets and the last good browser profile, so a session opens already signed in and re-runs the login flow when it expires; Volumes are persistent folders shared across sessions. Sessions default to a 3-hour cap and a 5-minute idle timeout, both adjustable. Pricing is credit-based with monthly tiers from $50 to $2,000 plus $1 per overage credit. SOC 2 Type II, ISO 27001, HIPAA and GDPR are listed, with EU residency on Growth and bring-your-own-cloud or on-premise on Enterprise.

Notable

$6M seed round from Blumberg Capital and Gradient Ventures, announced on the company blog on 21 October (press coverage dates it to 2025), alongside the b0.dev launch
Hosted in AWS us-east-2 by default with EU residency in eu-central-1 on the Growth plan
Listed on AWS Marketplace; bring-your-own-cloud and on-premise deployment offered on Enterprise

Anchor Browser specifications

Attribute	Details
Isolation	Dedicated, isolated virtual machine for each browser instance; browsers are never reused between sessions or customers; hypervisor not named
Deployment	Hosted platform · BYOC available
Open source	No
SDKs and interfaces	Python, JavaScript/TypeScript, REST API, MCP server
Cold start (vendor claim)	Not documented
Max session length	Default max_duration 180 minutes and idle_timeout 5 minutes, both configurable per session; no documented upper bound on max_duration; idle timeout can be disabled
Persistence	Identities store credentials, MFA methods and the browser profile from the last sign-in so sessions start logged in; Volumes are team-owned folders that outlive sessions for uploads and downloads; profiles via SDK
GPU	No — not offered
Networking	Built-in "Anchor VPN" rather than third-party proxies; custom proxies and geolocation selection on paid plans; automated captcha bypass; Cloudflare-verified browser agents; Web-Bot-Auth
Pricing	Credit plans: Free $0 (5 credits, up to 5 concurrent, up to 500 sessions); Starter $50/month (50 credits, 25 concurrent); Team $500/month (500 credits, 50 concurrent); Growth $2,000/month (2,000 credits, 200 concurrent); Enterprise custom (500+ concurrent). Overage $1.00 per credit; 0.1 credits per completed task. Calculator lists browser duration $0.09/hour, proxy $8/GB, AI steps $0.01
Free tier	Free plan: 5 credits, up to 5 concurrent browsers, up to 500 browser sessions
Compliance	SOC 2 Type II, ISO 27001, HIPAA (BAA) and GDPR listed; Zero Data Retention mode; browser session data not stored by design
Regions	AWS us-east-2 (Ohio) by default; EU residency in AWS eu-central-1 (Frankfurt) on Growth; custom regions on Enterprise

Facts from Anchor Browser’s public documentation, verified November 9, 2026. Performance numbers are vendor claims.

Strengths and trade-offs

Strengths

You need a dedicated VM per browser that is never reused
You want managed logins with MFA handled for you
You need audited compliance (SOC 2 Type II, ISO 27001, HIPAA, GDPR) and EU residency
You want to deploy into your own cloud or on-premise

Trade-offs

Pricing is in credits, so browser-hour cost is harder to compare
Compliance certifications are tied to the $2,000/month Growth tier and above
The platform is closed source with no self-hosting below Enterprise
No documented startup-time figure

Good fit for: Authenticated enterprise workflows that need VM-level isolation per browser and managed logins.

Use cases Anchor Browser fits

Computer use: A dedicated VM per browser with managed logins, SSO and MFA for authenticated enterprise workflows.
Enterprise & BYOC: For browser agents: a dedicated VM per browser with managed logins, SSO and MFA.

How Anchor Browser compares

Sandbox	Isolation	Open source	Self-host / BYOC	Cold start (vendor)	Max session	Snapshots / pause	GPU	SDKs
Anchor Browser	Dedicated VM per browser	No	No / Yes	Not documented	3 h default, configurable	No / No	No	Python, JavaScript/TypeScript, REST API, MCP server
Browserbase	Isolated Chromium session	No	No / No	<2 s (claim)	6 h (15 min Free)	No / No	No	Python, JavaScript/TypeScript, REST API, MCP server
Kernel	Unikernel VM per browser	Yes	Yes / No	~30 ms p50 (claim)	Up to 72 h	Yes / Yes	Yes	JavaScript/TypeScript, Python, Go, CLI, REST API, MCP server
Steel	Isolated Chromium session	Yes	Yes / No	Not documented	15 min / 1 h / 24 h	No / No	No	Python, JavaScript/TypeScript, Go, Rust, CLI, REST API, MCP server
Hyperbrowser	Isolated browser instance	No	No / No	<500 ms (claim)	Up to 12 h	No / No	No	Python, JavaScript/TypeScript, CLI, REST API, MCP server
Browser Use Cloud	Isolated browser per run	No	No / No	Not documented	1 h default, 4 h max	No / No	No	Python, JavaScript/TypeScript, REST API
Notte	Isolated browser instance	Yes	No / No	Not documented	15 min to 5 h by plan	No / No	No	Python, JavaScript/TypeScript, CLI, REST API, MCP server

See all Anchor Browser alternatives →

Frequently asked questions

What is Anchor Browser?

How does Anchor Browser isolate code?

Anchor Browser documents its isolation as: Dedicated, isolated virtual machine for each browser instance; browsers are never reused between sessions or customers; hypervisor not named.

Is Anchor Browser open source?

No, Anchor Browser is not open source. It does offer a bring-your-own-cloud deployment.

How much does Anchor Browser cost?

Credit plans: Free $0 (5 credits, up to 5 concurrent, up to 500 sessions); Starter $50/month (50 credits, 25 concurrent); Team $500/month (500 credits, 50 concurrent); Growth $2,000/month (2,000 credits, 200 concurrent); Enterprise custom (500+ concurrent). Overage $1.00 per credit; 0.1 credits per completed task. Calculator lists browser duration $0.09/hour, proxy $8/GB, AI steps $0.01 Check the official pricing page for current rates.

What are the alternatives to Anchor Browser?

Common alternatives include Browserbase, Kernel, Steel, Hyperbrowser, Browser Use Cloud, Notte. See Anchor Browser alternatives for a full comparison.

Sources

Cite this page

Agent Sandboxes. (2026). Anchor Browser. agentsandboxes.org. Last reviewed November 9, 2026. https://agentsandboxes.org/sandboxes/anchor-browser/

Found an error or a missing sandbox? Submit a correction — every entry links to the sources it relies on.