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Head to head · Browser automation · October 2026 research run

Anchor Browser vs Puppeteer

Puppeteer scores 70.6 (BB) on agent readiness against Anchor Browser's 67.3 (B), and leads in 3 of 7 scored categories. Anchor Browser leads on agent ergonomics. Both do browser automation.

Best browser automation tools for AI agents · All 120 browser comparisons

Anchor BrowserAnchor Forge Inc. · HTTP API B67.3/100#269 of 1076 PuppeteerGoogle · SDK + MCP BB70.6/100#154 of 1076

Which one, for what

Anchor Browser B

Best 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.

Ahead on

  • Agent ergonomics, 73 against 67

Also in its favour

  • A hosted endpoint, with nothing to install
  • Free to start without a card

Watch for

No service agreement or API terms found. anchorbrowser.io/terms is a website terms of use dated 16 March 2025

Puppeteer BB

Best for Agents that write and run Node.js scripts against Chrome or Firefox.

Ahead on

  • Maintenance & community, 89 against 57
  • Transparency & trust, 70 against 51

Also in its favour

  • Agent-ready, a grade of BB or better
  • No key needed to call it
  • Open source

Watch for

No MCP server, CLI or llms.txt of its own. The docs point agents to the separate chrome-devtools-mcp project

Score by category

CategoryWeight this runAnchor BrowserPuppeteerEdge
Reliability16%208080even
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28081Puppeteer +1
Agent ergonomics13%16.27367Anchor Browser +6
Security & auth14%17.55452Anchor Browser +2
Payments & pricing10%12.56060even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.85789Puppeteer +32
Transparency & trust7%8.85170Puppeteer +19
Negative events≤1500
TotalB 67.3/100BB 70.6/100

Facts side by side

FactAnchor BrowserPuppeteer
KindHTTP APISDK + MCP
VendorAnchor Forge Inc.Google
Hosted endpointhttps://api.anchorbrowser.iono (local only)
TransportsHTTP
AuthOAuth or keyNone
PricingFreemiumFree
x402nono
LicenceProprietary cloud service. No service agreement was found, only a website terms of use. The TypeScript and Python SDKs and the self-hosted MCP server are Apache-2.0Apache-2.0
Read-only variant documentednono
llms.txtyesno
Last release2026-07-282026-10-08
Terms last updatedno document linkedno document linked
Privacy policy last updated2026-02-24no document linked
Customer content may train models
Terms restrict automated access
Terms restrict benchmarking
Terms or service can change without notice
Arbitration or class-action waiver
Popularity43k npm/wk, 10k PyPI/wk96k stars, 11.5M npm/wk

Verdicts

Anchor Browser

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.

Puppeteer

Puppeteer is a stable, Apache-2.0 library on 25.13.0, with ten releases since 27 July 2026, typed APIs, locators that wait and retry, and accessibility snapshots an agent can read. It has no MCP server or llms.txt of its own, and 10 of the 20 most recent CI runs on main failed between 7 and 13 October 2026.

Before you call either

Anchor Browser

  1. Send the key in the anchor-api-key header. For CDP, build wss://connect.anchorbrowser.io?apiKey=<key>&sessionId=<id> and keep that URL out of logs
  2. Set session.timeout.idle_timeout and max_duration and end sessions with DELETE. The default maximum is 180 minutes, and browser time bills by the minute
  3. Session creation is capped at 5 a minute on Free, 25 on Starter and 100 on Growth. On 429, wait for the Retry-After seconds
  4. Connect the Anchor MCP server or Anchor (all), not both, because the docs say the pair duplicates tool names
  5. Authenticated browsers, CAPTCHA solving and proxies by country need the Starter plan or higher. The Free plan and Agent Access keys run plain sessions and web tasks

Puppeteer

  1. Install with npm i puppeteer, which downloads a matching Chrome for Testing. Use puppeteer-core to bring your own browser
  2. Prefer page.locator() over page.$(). Locators wait for the element to be visible and stable before acting
  3. Read pages with page.accessibility.snapshot({interestingOnly: true}) rather than full HTML to keep output short
  4. Catch TimeoutError separately from TargetCloseError. The first can be retried, the second needs a new page or browser
  5. Packages are ESM only since 25.0.0. Use import puppeteer from 'puppeteer' rather than require

Questions

Which is better for AI agents, Anchor Browser or Puppeteer?

Puppeteer scores 70.6 (BB) on agent readiness against Anchor Browser's 67.3 (B), and leads in 3 of 7 scored categories. Anchor Browser leads on agent ergonomics.

Can an agent call Anchor Browser and Puppeteer without installing anything?

Anchor Browser has a hosted endpoint at https://api.anchorbrowser.io. No hosted endpoint is listed for Puppeteer.

Are Anchor Browser and Puppeteer open source?

No open-source release is listed for Anchor Browser. Puppeteer is open source (Apache-2.0).

Other comparisons with Anchor Browser or Puppeteer

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