Browser Automation · Reviewed 20 Oct 2026

Steel

Open-source browser API for AI agents to control cloud browsers.

from $250 · free tier · steel.dev ↗

Paid against free › Browser Automation › Steel

Overview

01

Summary

The useful answer before the supporting detail.

Steel is an open-source browser API that lets AI agents control fleets of real browsers in the cloud S1. It is used by developers building AI agents for tasks like web scraping, shopping assistance, and customer service automation S1. Steel provides fast session startup, observability, and human-in-the-loop support, enabling agents to browse like humans S1.

02

Product identity and positioning

Name, category, positioning, audience, and first-party claims.

  • Identity: Steel is an open-source browser API for AI agents S1.
  • Core purpose: It solves the problem of giving AI agents a real browser to navigate and interact with the web S1.
  • Intended users: Developers building AI agents for automation, scraping, and research S1.
  • Product scope: It is a cloud browser infrastructure service, not an agent itself S1 S79.
  • Positioning: Steel positions itself as infrastructure that handles browser lifecycle, stealth, and proxies, so agents can focus on their tasks S79.
  • Claimed distinction: It claims to start browsers in under a second with no cold-start penalty S1.
03

Use cases and audiences

Who the product serves and the jobs it is designed to handle.

AudiencePractical use case
AI agentsGive agents a real browser to navigate, click, and type through the web, then hand back what they found S1.
Foundational model trainingGather fresh, clean web data at scale to train and evaluate models S1.
AI shopping assistantsSearch stores, compare prices, and fill a cart on a shopper's behalf S1.
Web scrapingPull structured data from any site, logins and JavaScript included, without running a fleet of your own S1.
RPA softwareAutomate the clicks and forms people repeat every day in web apps with no API S1.
Customer service agentsResolve tickets end to end: look up orders, update accounts, and follow up in the tools support already uses S1.

Features

07

Features and capabilities

Core functions and evidence-backed product capabilities.

CapabilityWhat it does
Session managementStart, stop, and control browser sessions via API, with sessions starting in under a second S1.
Stealth and anti-botDetects and solves CAPTCHAs, including Cloudflare Turnpike and image CAPTCHAs, and uses stealth to avoid detection S1.
Human-in-the-loopAllows stepping in for 2FA, payments, or uncertain steps during agent runs S1.
ObservabilityProvides session viewer, action traces, and playback to monitor agent activity S1 S111.
Self-hostingCan be run in your own cloud or on-premises, keeping data within your network S1.
Mobile modeRun sessions with mobile user-agent and viewport for simpler DOMs and mobile-only auth paths S111.
Files APIUpload, use, and download files within automation workflows S72.
08

Integrations and ecosystem

Connected products, exports, APIs, and workflow compatibility.

Integration or interfaceTypeWhat it enables
Python SDKSDKUse Steel's Python SDK to control browser sessions programmatically S1.
Node.js SDKSDKUse Steel's Node.js SDK to control browser sessions programmatically S1.
REST APIAPIControl and start sessions with a single API call S1.
browser renderingIntegrationConnect browser rendering directly to Steel, no agent needed S1.
PuppeteerIntegrationConnect Puppeteer directly to Steel, no agent needed S1.
SeleniumIntegrationConnect Selenium directly to Steel, no agent needed S1.
CDP WebSocketAPIConnect any CDP-compatible tool over a standard WebSocket URL S1.
Hermes AgentIntegrationSteel ships as a browser plugin for Hermes Agent S1.

Pricing

09

Pricing and plans

Published plans, free access, trials, credits, and pricing limitations.

Plan or offerVerified price and billingIncludedLimits
Launch$0 per month + usage S61$30 one-time credits S6110 concurrent sessions; 15-minute sessions; 3 seats S61
Scale$250 per month + usage S61$100 credits per month S61100 concurrent sessions; 1-hour sessions; no stealth browser S61
EnterpriseCustom per month + usage S61Custom credits S611,000+ concurrent sessions; stealth browser; 24-hour sessions S61
Browser hours (Launch)$0.10 per hour S61Not establishedNot established
Proxy bandwidth (Launch)$10 per GB S61Not establishedNot established
CAPTCHA solves (Launch)$3 per 1k S61Not establishedNot established
Browser tools /scrape (Launch)$5 per 1k S61Not establishedNot established

Competition

10

Competitive landscape

Domains competing for the same organic search demand.

Sampled competitors

CompetitorFirst-page appearancesSampled queriesAverage positionQueries observed
reddit.com424.8steel browser, steel agent
github.com213.5steel browser
facebook.com217steel agent
fly.io111steel browser
youtube.com111steel agent
pt.wikipedia.org112steel agent
linkedin.com113steel browser
last.fm114steel agent
humanbrowser.cloud116steel browser
equipboard.com117steel agent

Website intelligence — Collected evidence

Customers, testimonials, and first-party review claims

No supporting public-page evidence was collected for this category.

Independent review sources discovered

No links to supported independent review platforms were discovered on the collected pages.

11

AI visibility

Measured ChatGPT and Google AI mentions with cited sources.

AI-assistant referral traffic

  • Estimated current generative-AI referral share: —

Scout traffic model did not return a separate AI-referral trend series for this domain.

Website intelligence — Collected evidence

Site-stated AI capabilities

Page typeEvidenceSource
technicalGive your AI agentshttps://steel.dev/
technicalSearch the web for this week's biggest AI agent launches and summarize each one.https://steel.dev/
technicalmy-agent ▸Search the web for this week's biggest AI agent launches and summarize each one.https://steel.dev/
technicalAI AgentsFoundational Model TrainingAI Shopping AssistantsWeb ScrapingRPA SoftwareSales AutomationQA SoftwareCustomer Service AgentsDeep ResearchPrice MonitoringForm FillingTravel Bookinghttps://steel.dev/
integrationsSteel runs browser infrastructure for AI agents. Every session assembles parts from at least two companies: our browsers and network on one side; the customer’s harness, credentials, and sometimes proxies on the other. When the assembled system fails, the error appears on our screen regardless of whose part broke.https://steel.dev/blog/developer-tools-come-with-an-assembly-required-sticker

These are first-party product claims, not independent measurements of AI-search visibility.

12

Marketing opportunities

Actions calculated directly from the collected evidence.

OpportunityRecommended actionEvidence
Striking-distance keywordVolume 140 · https://steel.dev/
Important pagehttps://leaderboard.steel.dev/leaderboards/osworld/ · 1 sampled keywords · best position 4
Competitor gap4 first-page appearances across steel browser, steel agent

Website intelligence — Collected evidence

Website evidence gaps

  • features: no usable public page was collected; verify whether the site publishes this evidence.
  • customers: no usable public page was collected; verify whether the site publishes this evidence.
  • reviews: no usable public page was collected; verify whether the site publishes this evidence.
  • identity: no usable public page was collected; verify whether the site publishes this evidence.

Trust and proof

13

Customers, proof, and reviews

Published proof, customer signals, and review evidence.

Independent reviews

PlatformPageHow it was foundNote
RightAIChoiceSteel Browser Pricing & Features (2026) / RightAIChoiceGrounded web searchWe ran a structured research pass across product reviews, community discussions, and post-purchase forum threads to surface the patterns vendors won't publish themselves. Below: the recurring strengths, the hidden costs people mention most, and the cohort that consistently regrets adopting this tool. ... 17 mentions across 4 sources (Hacker News, YouTube, GitHub, Lemmy) · researched Sep 23, 2026. ... 46% positive 54% critical ... - + Open-source model with 7,684 GitHub stars gives control Browse
DataResearchToolsSteel.dev Review 2026: Open-Source Browserbase Alternative Tested - DataResearchToolsGrounded web search, no CAPTCHA solving, no proxy pool — are real, but all of them are solvable at the infrastructure layer. dataresearchtools.com will continue tracking Steel’s roadmap as the managed tier matures through
data4ai.comSteel.dev Review: Scalable API Browser AutomationGrounded web search.dev is an open-source browser API for controlling fleets of cloud browsers, purpose-built for AI ... free to start. Best for developers building agentic workflows that require reliable, programmatic browser control without managing browser infrastructure

Customer proof

No named customers, testimonials, or customer case studies were found.

Independent mentions

  • Show HN: Steel.dev – An open-source browser API for AI agents and apps / Hacker News — ’re Nas and Huss, co-founders of steel.dev ... an open-source browser API for AI agents and apps. We make it easy for AI devs to build browser automation into their products without getting flagged as a bot or worrying about browser infra
  • steel-dev/steel-browser — 🔥 Open Source Browser API for AI Agents & Apps. Steel Browser is a batteries-included browser sandbox that lets you automate the web without worrying about infrastructure. - Stars: 7846 - Forks: 997 - Watchers: 7846 - Open issues: 76 - License: Apache License 2.0 - Homepage: https://steel.dev - Default branch: main - Created: 2024-11-01T18:15:29Z ... Steel.dev is an open-source browser API that makes it easy to build AI apps and agents that interact with the web. Instead of building automation
  • Steel — unsubbed.co — - Code breaks when websites change. There’s no model-layer adaptation — selectors and ... . This isn’t a Steel-specific problem but it’s the primary reason teams upgrade beyond this category entirely 1 . - Self-hosted drops managed features. Running your
  • steel-dev/steel-cookbook — A collection of production-ready examples demonstrating how to build powerful browser automations with Steel. From basic browser rendering scripts to ... examples show you how to leverage Steel's cloud browser infrastructure for reliable, scalable web automation
  • Issues · steel-dev/steel-browser · GitHub — - ### FEATURE Include an init process in the API image for Kubernetes deployments enhancement steel-dev/steel-browser#378 ... - ### BUG Request interception on every page leaves Figma's WebGL prototype viewer black steel-dev

External links were grounded in one live web search. Search snippets are leads, not independently scraped page content; rejected links remain available in Review evidence.

14

Company, security, and trust

Ownership, policies, security signals, and public trust evidence.

SignalFindingSource
Company and ownershipAffiliates. We may share your information with our affiliates, in which case we will require those affiliates to honor this Privacy Notice. Affiliates include our parent company and any subsidiaries, joint venture pasource
Contact and supportQuestions or concerns? Reading this Privacy Notice will help you understand your privacy rights and choices. We are responsible for making decisions about how your personal information is processed. If you do not agrsource
Legal and privacyThe General Data Protection Regulation (GDPR) and UK GDPR require us to explain the valid legal bases we rely on in order to process your personal information. As such, we may rely on the following legal bases to processsource
Security and complianceStep in for 2FA, payments or anything unsure.source
Uptime and status pageSupport and uptime SLAssource
Domain registered2024-07-22—
Domain expires2027-07-22—

Every trust signal above is backed by a collected page or a registration record.

15

Documentation and product updates

Help resources, product guidance, and visible changes over time.

Resource or updateTypeWhat is availableDate or freshness
Steel / ChangelogChangelogWhat is new in Steel: features, SDKs, the CLI and integrations. (source)Not dated
Product FAQFAQAnswers common product, workflow, pricing, privacy, ownership, API, and team questions. (source)Not dated
Steel / Open-source Browser Infrastructure for AI AgentsProduct updateProduct update is publicly available. (source)Not dated

Not found in the collected public sources: public roadmap, status page, separate help center or knowledge base.

Technical

16

Technical and delivery signals

Delivery model, platforms, API, data ownership, reliability claims and release activity.

SignalFindingSource
Delivery model (cloud, self-hosted, desktop, browser extension)Steel is cloud browser infrastructure, and can be self-hosted in your own cloud S1.S1
Platforms and appsSteel is a web-based API; no desktop or mobile apps are mentioned S1.S1
API and extensibility (API, SDK, webhooks, MCP, plugins)Provides REST API, Python and Node.js SDKs, and CDP WebSocket support S1.S1
Data ownership and exportSelf-hosting keeps data inside your network S1.S1
Performance and reliability claimsSessions start in under a second on average, with no cold-start penalty S1.S1
Release activityChangelog documents frequent updates, including new SDKs and integrations S72.S72
17

Measured infrastructure

Domain, certificate, and hosting signals, measured directly.

SignalFinding
Domain registered2024-07-22 — Namecheap Inc.
Domain expires2027-07-22
First archived2024-10-08 — web archive
TLS certificateLet's Encrypt, valid, expires 2026-12-07
Security headersHSTS
Headers not servedCSP, X-Content-Type-Options, X-Frame-Options, Referrer-Policy
Server headerVercel
Mail handled bysmtp.google.com
Nameserverspaislee.ns.cloudflare.com, tosana.ns.cloudflare.com
18

Technical site audit

A bounded multi-page crawl with page-level issues and URLs.

Scout — Bounded technical crawl

  • Pages crawled: 15 of 15 maximum
  • Technical health: 99/100
  • Critical issues: 0
  • Warnings: 2
  • Notices: 1

Issues

SeverityIssueValueAffected URL
warningPage should have one primary H10https://steel.dev/enterprise
warningTitle length should be reviewed66https://steel.dev/blog/build-the-agent-not-its-computer
noticeMeta description length should be reviewed40https://steel.dev/terms

Crawled pages

StatusTitleH1sWordsResponseURL
200Steel \Open-source Browser Infrastructure for AI Agents12068388 ms
200Steel \Pricing1514165 ms
200Steel \FAQ163447 ms
200Steel \Blog1546220 ms
200Steel \Changelog11403171 ms
200Steel \Brand assets1240168 ms
200Steel \Enterprise022317 ms
200Steel \AI agent infrastructure: build the agent, not its computer14430243 ms
200Steel \Developer tools come with an assembly required sticker1147622 ms
200Steel \Steel now ships as a browser plugin for Hermes Agent1937187 ms
200Steel \Steel Browser is live in Stripe Projects1957150 ms
200Steel \Launch Week v3: everything we shipped1857152 ms
200Steel \Simpler pricing, built for how agents run193217 ms
200Steel \Terms of Service1702326 ms
200Steel \Privacy Policy1722617 ms

This is a bounded Scout crawl. Core Web Vitals and Lighthouse scores are not claimed unless a dedicated performance audit is connected.

19

Search Console and Analytics

First-party search and behavioral data connection state.

Modeled acquisition channels

Scout traffic model did not return a traffic-source distribution for this domain.

First-party connections

IntegrationStatusData available after connection
Google Search ConsoleNot connectedClicks, impressions, CTR, average position, queries, pages, countries, and devices
Google AnalyticsNot connectedOrganic sessions, engagement, landing pages, conversions, geography, and devices

No first-party Search Console or Analytics numbers are shown until the site owner authorizes the corresponding Google account. Scout traffic model values above are modeled estimates, not private analytics totals.

Limits and method

20

Limitations and open questions

Known constraints and missing evidence from the collected pages.

The collected pages do not mention any competitors by name. Evidence gaps include lack of named customers, independent reviews, and detailed security certifications beyond HIPAA mention. Open questions include actual uptime history and performance under load.

21

Sources, method, and limitations

Evidence inventory, collection method, provider use, and constraints.

This report is based on 15 collected pages from steel.dev, including the homepage, pricing, changelog, FAQ, launch week, enterprise, brand kit, terms, and privacy policy. Evidence was gathered via static and browser rendering rendering; external proof search was enabled but only discovered the GitHub repository. Limitations: no third-party reviews or customer case studies were collected, and pricing details are subject to change.

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