Best of · Developer & infrastructure
Best browser automation tools for AI agents
The 10 highest-scoring of 14 browser automation tools on the Anchor benchmark, with a pick for each need and where each one falls short. Scores come from public evidence, re-checked as vendors change.
- 14 ranked
- 5 agent-ready
- 4 accept x402
- 10 hosted endpoints
- Updated 8 October 2026
Top three
Picks by need
Worked out from the scores, prices and facts, so they change when the research does.
Highest score overall
Browser Use BB
BB, 77.9/100 on the benchmark.
Also Chrome DevTools MCP, BB, 77/100.
Schema & documentation
Browserless BB
89/100 on schema & documentation, against 85 for the overall leader.
Maintenance & community
93/100 on maintenance & community, against 77 for the overall leader.
Transparency & trust
81/100 on transparency & trust, against 65 for the overall leader.
Lowest paid price per browser hour
Browser Use BB
$0.02 per browser hour, the lowest of the 7 listings here with a paid price in this unit (free allowances aside).
Also Anchor Browser, $0.05 per browser hour.
Self-hosting under an open licence
Browserless BB
self-hosted, SSPL 1 licence.
Also Steel, self-hosted, Proprietary cloud service under Steel's terms licence.
The shortlist
| # | Tool | Grade | Best for | Price | Where |
|---|---|---|---|---|---|
| 1 | Browser Use Browser Use |
BB 77.9 | An agent that wants to hand a whole browser task to a hosted agent and get a result back, or that needs a low-cost cloud browser over CDP, and for unattended agents that can pay by x402. | $0.02 / browser-hr | hosted and local |
| 2 | Chrome DevTools MCP Google (Chrome DevTools team) |
BB 77 | Coding agents debugging or profiling a web app they're building. | Free · OSS | local |
| 3 | Browserbase Browserbase |
BB 76.2 | Agents that need a real JavaScript-capable browser in the cloud, especially unattended ones that can pay by x402. | $0.12 / browser-hr | hosted |
| 4 | Browserless browserless.io, Inc. |
BB 70.4 | Agents that need a real browser in the cloud with stealth, proxies and CAPTCHA solving, and teams that want the option of running the same server themselves. | $0.002 / credit | hosted and local |
| 5 | Steel Nen Labs, Inc. |
BB 70.4 | Agents that need a real cloud browser with persistent profiles, stored logins, CAPTCHA solving and a human takeover path, and teams that want an open-source runtime they can also self-host. | $0.01 / call | hosted and local |
| 6 | TinyFish Tiny Fish, Inc. |
B 67.7 | Agents that want one account for a goal-driven web agent, a raw CDP browser, and free search and fetch. | $0.016 / call | hosted |
| 7 | Playwright MCP Microsoft |
B 67.6 | The default choice for an agent that drives web pages by structure rather than pixels. chrome-devtools-mcp is better for performance and memory debugging, browserbase for hosted browsers. | Free · OSS | local |
| 8 | Anchor Browser Anchor Forge Inc. |
B 67.3 | Agents that must work inside signed-in accounts, with managed identities, MFA handling and a human sign-in link, and agents that need to start with no human signup. | $0.01 / call | hosted |
| 9 | Hyperbrowser S2 Labs Inc. |
B 66.9 | Agents that need a cloud browser by the minute plus cheap fetch and search, especially wallet-holding agents with no account. | $0.001 / call | hosted and local |
| 10 | agent-browser Vercel Labs |
B 66.6 | Coding agents with a shell that want short commands and compact snapshots. | Free · OSS | local |
4 more are ranked in the full table.
How to choose
- Browser lifetime and session reuseCheck how long a browser session lives and whether it can be resumed, because an agent that loses its page state mid-task must restart the whole flow.
- Credentials for signed-in sitesCheck where site logins are stored and who can read them, since an agent acting in a signed-in browser can reach anything that session can.
- Accessibility tree and page readsCheck whether the tool returns an accessibility tree or only raw HTML and screenshots, since a structured tree lets the agent find and fill fields without parsing markup.
- Traces and screenshots on failureCheck whether traces and screenshots are saved for failed runs and how long they are kept, since an agent that cannot see why a step failed will retry blindly.
Each one in detail
Browser Use
BB 77.9/100Browser Use runs AI agents that operate a web browser. It has an MIT Python library and CLI, and a hosted cloud with an agent API, managed browsers over CDP and an MCP server.
Verdict The hosted cloud accepts x402 top-ups in USDC on Base with no account or API key, and publishes prices, rate limits and three OpenAPI documents. The privacy policy says inputs are used to train Browser Use's models, API keys have no documented scopes, and no prompt-injection guidance was found in the docs.
Choose it for An agent that wants to hand a whole browser task to a hosted agent and get a result back, or that needs a low-cost cloud browser over CDP, and for unattended agents that can pay by x402.
Strengths
- x402 host at x402.api.browser-use.com takes USDC on Base with no account or API key, and wallet top-ups start at $0.01
- Public prices without login, $0.02 a browser-hour, proxy traffic $5 a GB, model tokens plus a 20 per cent fee
- OpenAPI 3.1.0 documents for API v2, v3 and v4, llms.txt and Markdown copies of every docs page
Weaknesses
- The privacy policy says inputs are used to train Browser Use's AI models, with no opt-out described outside Enterprise zero data retention
- No scopes or permissions documented for API keys, and the per-key monthly spending cap is a soft limit
- No prompt-injection guidance found in the cloud docs, though agents read untrusted pages
Price $0.02 / browser-hrAuth API keyx402 yeshosted and local
Chrome DevTools MCP
BB 77/100Lets coding agents control and inspect a live Chrome instance.
Verdict Performance traces, network inspection, heap snapshots and Lighthouse audits in one server. Usage statistics go to Google by default until you pass --no-usage-statistics.
Choose it for Coding agents debugging or profiling a web app they're building.
Strengths
- Performance traces, network inspection, heap snapshots and Lighthouse audits in one server
- Every tool carries
readOnlyHint, and category flags and--slimcut the tool list from about 30 to three --javascript-evaluation false, URL allow and block patterns and MCP roots for least privilege
Weaknesses
- Usage statistics go to Google by default until you pass
--no-usage-statistics --isolatedand network header redaction are off by default, so the agent sees a persistent profile and raw headers- 1.8.0 made
pageIdrequired on page tools in a minor release, filed underFeatures
Price Free · OSSAuth Nonex402 nolocal
Browserbase
BB 76.2/100Hosted headless browsers for agents over CDP, plus Fetch and Search APIs and the Stagehand framework.
Verdict x402 sessions at x402.browserbase.com with no account, $0.12 an hour, unused minutes refunded. The hosted MCP setup page passes the API key as ?browserbaseApiKey= in the URL.
Choose it for Agents that need a real JavaScript-capable browser in the cloud, especially unattended ones that can pay by x402.
Strengths
- x402 sessions at x402.browserbase.com with no account, $0.12 an hour, unused minutes refunded
- Per-plan concurrency and session-creation limits, with Retry-After and a documented backoff helper
- OpenAPI 3.0.0, llms.txt and a dated changelog with 12 entries since 13 July 2026
Weaknesses
- The hosted MCP setup page passes the API key as
?browserbaseApiKey=in the URL - No scopes or rotation guide for API keys, and no SLA published
- Hosted MCP tools have one-line descriptions and no annotations
Price $0.12 / browser-hrAuth API keyx402 yeshosted
Browserless
BB 70.4/100Browserless runs hosted headless browsers that agents drive over CDP, Playwright, REST endpoints, BrowserQL or its official MCP server. The same software can be self-hosted from a Docker image.
Verdict An OpenAPI document, llms.txt and a 14-tool MCP server with annotations on every tool make the service easy for an agent to read, and the free plan needs no card. The API token travels in the URL query string by default, cloud tokens carry no scopes, and no machine payment route exists.
Choose it for Agents that need a real browser in the cloud with stealth, proxies and CAPTCHA solving, and teams that want the option of running the same server themselves.
Strengths
- OpenAPI 3.0.0 document with 87 paths, llms.txt, llms-full.txt and Markdown twins of the docs
- Hosted MCP server at mcp.browserless.io with 14 documented tools, each carrying read-only and destructive annotations
- Free plan with 1,000 units a month and no card, with per-unit overage prices published for paid plans
Weaknesses
- REST and WebSocket routes take the API token as
?token=in the URL, which the docs give as the standard method - Cloud tokens have no scopes or roles. Token roles exist only on self-hosted Enterprise containers
- No x402, MPP or L402, and an account needs a person to sign up in a browser
Price $0.002 / creditAuth OAuth or keyx402 nohosted and local
Steel
BB 70.4/100Steel runs cloud browser sessions for AI agents, controlled through a REST API, a CDP WebSocket, SDKs, a CLI and an official MCP server. Its browser runtime, steel-browser, is open source and can be self-hosted.
Verdict The hosted API has a public OpenAPI document, per-unit prices, $30 of starting credit and x402 payment for scrape, screenshot and PDF calls. The status page records three API or session-creation incidents of more than an hour in 90 days, and the documented CDP connection puts the API key in the URL.
Choose it for Agents that need a real cloud browser with persistent profiles, stored logins, CAPTCHA solving and a human takeover path, and teams that want an open-source runtime they can also self-host.
Strengths
- OpenAPI 3.0.3 document with 75 operations, llms.txt and a Markdown twin of every docs page
- x402 at x402.steel.dev for scrape, screenshot and PDF at $0.01 a call in USDC on Base or Solana, with no account
- Per-unit prices published without login, and $30 of one-time credit on the Launch plan
Weaknesses
- Three incidents of more than an hour hit the API or session creation in the 90 days to 8 October 2026, the longest 5 hours 41 minutes
- The documented CDP connection passes the API key as
apiKeyin thewss://connect.steel.devURL - x402 covers the three one-shot endpoints only, so a browser session needs an account and a key
Price $0.01 / callAuth API keyx402 yeshosted and local
TinyFish
B 67.7/100TinyFish is a hosted web agent platform from Tiny Fish, Inc. Agents call it through REST APIs for goal-driven automation, remote browser sessions over CDP, search, fetch and research, or through a remote MCP server with OAuth.
Verdict OpenAPI documents are published for five APIs, errors carry typed codes and request IDs, and Search and Fetch are free within daily allowances. The terms let Tiny Fish train its models on customer data, run creation takes no idempotency keys, and the status page shows an hour or more of downtime on several days for the Browser and Search APIs.
Choose it for Agents that want one account for a goal-driven web agent, a raw CDP browser, and free search and fetch.
Strengths
- OpenAPI 3.0 documents for the Agent, Browser, Fetch, Search and Research APIs, plus
llms.txt,llms-full.txtand a Markdown twin of every docs page - Search and Fetch are free up to 12,000 requests and 1,000 URLs a day, and new accounts start with $8 of wallet funds with no card
- Errors carry a code, a message, optional
detailsand arequest_id. Search and Fetch 429s carryRetry-AfterandX-RateLimit-*headers
Weaknesses
- The terms of 17 August 2026 allow Tiny Fish to train and improve its models on customer data. No opt-out was found in the reviewed pages
- The status page shows downtime of an hour or more on six days for the Browser API and five for the Search API between 11 July and 8 October 2026, with no incident write-ups
- No idempotency keys on run or session creation. The docs say retrying a failed request may create duplicate runs
Price $0.016 / callAuth OAuth or keyx402 nohosted
Playwright MCP
B 67.6/100Browser automation MCP server built on Playwright that drives pages via structured accessibility snapshots rather than screenshots.
Verdict Accessibility snapshots with depth limits and browser_find, so the agent reads less of the page. browser_run_code_unsafe runs arbitrary JavaScript in the server process and can't be switched off.
Choose it for The default choice for an agent that drives web pages by structure rather than pixels. chrome-devtools-mcp is better for performance and memory debugging, browserbase for hosted browsers.
Strengths
- Accessibility snapshots with
depthlimits andbrowser_find, so the agent reads less of the page - 25 tools by default, with network, storage, devtools, vision, PDF and testing behind
--caps readOnlyHint,destructiveHintandopenWorldHinton every tool
Weaknesses
browser_run_code_unsaferuns arbitrary JavaScript in the server process and can't be switched off- No authentication on the HTTP transport, and
--isolatedis off by default - Still 0.0.x after 83 releases, with alpha Playwright builds as dependencies
Price Free · OSSAuth Nonex402 nolocal
Anchor Browser
B 67.3/100Anchor Browser runs cloud browser sessions for AI agents, controlled through a REST API, a CDP WebSocket, TypeScript and Python SDKs and hosted MCP servers. It adds managed logins with MFA, profiles, proxies, CAPTCHA solving and recordings.
Verdict The API has a public OpenAPI 3.1 document, per-unit prices and Agent Access, an unauthenticated flow that issues a trial API key without a dashboard account. No service agreement is published, only a website terms of use, and the documented CDP connection puts the API key in the URL.
Choose it for Agents that must work inside signed-in accounts, with managed identities, MFA handling and a human sign-in link, and agents that need to start with no human signup.
Strengths
- Agent Access issues an API key through two unauthenticated calls and a puzzle, with 1 trial credit, or 5 with a verified-email OIDC token
- OpenAPI 3.1 document with 101 paths and 136 operations, llms.txt, llms-full.txt and a Markdown twin of every docs page
- Per-unit prices published without login, $0.01 a browser, $0.05 a browser-hour and $8 a GB of proxy traffic
Weaknesses
- No service agreement or API terms found. anchorbrowser.io/terms is a website terms of use dated 16 March 2025
- The documented CDP connection passes the API key as
apiKeyin thewss://connect.anchorbrowser.ioURL - No changelog, deprecation policy or published SLA found, and docs.anchorbrowser.io/changelog returns 404
Price $0.01 / callAuth OAuth or keyx402 nohosted
Hyperbrowser
B 66.9/100Hyperbrowser, from S2 Labs Inc., runs hosted Chromium sessions that agents control over CDP, WebDriver or computer actions, with Fetch, Search, Crawl, Extract and cloud sandbox APIs. Access is by API key, SDKs, a stdio MCP server or x402.
Verdict Sessions, Fetch and Search can be bought by x402 at api.hyperbrowser.ai with USDC on Base or Solana and no account, and unit prices are public. The official MCP server was last published in April 2025, no request rate limits or SLA are published, and the privacy notice covers only the website.
Choose it for Agents that need a cloud browser by the minute plus cheap fetch and search, especially wallet-holding agents with no account.
Strengths
- x402 on /x402/session, /x402/web/fetch and /x402/web/search with USDC on Base or Solana and no account, confirmed by a live 402 on 8 October 2026
- Unit prices public in the docs, $0.10 a browser-hour billed per second, $0.001 a Fetch page, $0.005 a Search query
- Free plan with 5,000 credits and no card, per the pricing page
Weaknesses
- The official MCP server's last npm release is 1.0.25 of 13 April 2025, and it isn't in the official MCP registry
- No request rate limits, Retry-After header or SLA found; the pricing page says paid plans have no rate limits
- One
x-api-keyper account with no scopes or rotation guidance found in the reviewed documentation
Price $0.001 / callAuth OAuth or keyx402 yeshosted and local
agent-browser
B 66.6/100agent-browser is an open-source command-line tool from Vercel Labs that lets AI agents drive Chrome through accessibility-tree snapshots and element refs. It runs locally as a Rust binary and includes a stdio MCP server.
Verdict Snapshots with element refs, a 29-tool default MCP profile and opt-in domain allowlists, action policies and content boundary markers suit agent use. The project is at 0.38.2 with no stable release, the ten most recent CI runs on main failed between 1 and 8 October 2026, and every security control is off by default.
Choose it for Coding agents with a shell that want short commands and compact snapshots.
Strengths
- Accessibility-tree snapshots give each element a ref such as
@e2, with-i,-c,-dand--deltato cut the output - The stdio MCP server loads 29 tools by default and 158 with
--tools all, each with a typed schema andreadOnlyHint - Domain allowlist, action policy, action confirmation and content boundary markers are documented with a threat model and known limitations
Weaknesses
- The ten most recent CI runs on main, 1 to 8 October 2026, all concluded in failure. In the newest, Windows Rust tests and native end-to-end tests failed
- Version 0.38.2 with a Vercel Labs badge and no stable release or deprecation policy
- All security controls are opt-in. By default there is no limit on navigation, actions or output
Price Free · OSSAuth Nonex402 nolocal
Head to head
- Browser Use vs Chrome DevTools MCP BB 77.9 vs BB 77
- Browser Use vs Browserbase BB 77.9 vs BB 76.2
- Browser Use vs Browserless BB 77.9 vs BB 70.4
- Browser Use vs Steel BB 77.9 vs BB 70.4
- Browserbase vs Chrome DevTools MCP BB 76.2 vs BB 77
- Browserless vs Chrome DevTools MCP BB 70.4 vs BB 77
- Chrome DevTools MCP vs Steel BB 77 vs BB 70.4
- Browserbase vs Browserless BB 76.2 vs BB 70.4
- Browserbase vs Steel BB 76.2 vs BB 70.4
- Browserless vs Steel BB 70.4 vs BB 70.4
Questions
What are the highest-rated browser automation tools for AI agents?
Browser Use has the highest benchmark score of the 14 ranked browser automation tools, 77.9 (BB). Chrome DevTools MCP is second with 77 (BB).
How many browser automation tools are agent-ready?
5 of the 14 ranked here grade BB or better, the bar for agent-ready on the Anchor benchmark.
Which browser automation tools accept x402 payments?
Browser Use, Browserbase, Steel and Hyperbrowser. An agent can pay these per call in USDC with no account.
Which of these browser automation tools is cheapest?
By published paid prices, Browser Use, at $0.02 per browser hour, the lowest of the 7 listings here with a paid price in this unit (free allowances aside). Plans, volume tiers and free allowances change the sum, so check the listing's price table.
How is this list ranked?
By the Anchor benchmark score out of 100, a weighted mean of the scored categories minus deductions for negative events, from public evidence re-checked as vendors change. Listings cannot pay for a place. The latest assessment behind this page is from 8 October 2026.
How this list is made
The order is the Anchor benchmark score, the same number as on each listing and in the top list. Each listing is graded from public evidence against the benchmark checklist, and the picks above are worked out from those grades, prices and facts. No listing pays for its place, and paid audits or listing help never change a score.
Full ranked table · 91 head-to-head comparisons · Best tools in every category