# Anchor Browser vs Puppeteer

> Puppeteer scores 70.6 (BB) to Anchor Browser's 67.3 (B) for browser automation. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/anchor-browser-vs-puppeteer
- Markdown: https://www.anchorterminal.com/compare/anchor-browser-vs-puppeteer.md (~2,600 tokens)
- Slim: https://www.anchorterminal.com/compare/anchor-browser-vs-puppeteer.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/anchor-browser-vs-puppeteer.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-14

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.

- Anchor Browser: grade B, 67.3/100, rank #269 of 1076. Markdown https://www.anchorterminal.com/tools/anchor-browser.md · JSON https://www.anchorterminal.com/api/v1/tools/anchor-browser.json
- Puppeteer: grade BB, 70.6/100, rank #154 of 1076. Markdown https://www.anchorterminal.com/tools/puppeteer.md · JSON https://www.anchorterminal.com/api/v1/tools/puppeteer.json
- Best browser automation tools for AI agents: https://www.anchorterminal.com/best/browser/index.md
- All 120 browser comparisons: https://www.anchorterminal.com/compare/browser/index.md

## Which one, for what

### Anchor Browser (B)

Good 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)

Good 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

| Category | Weight | Anchor Browser | Puppeteer | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 80 | 80 | even |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 80 | 81 | Puppeteer +1 |
| Agent ergonomics | 13% (16.2 this run) | 73 | 67 | Anchor Browser +6 |
| Security & auth | 14% (17.5 this run) | 54 | 52 | Anchor Browser +2 |
| Payments & pricing | 10% (12.5 this run) | 60 | 60 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 57 | 89 | Puppeteer +32 |
| Transparency & trust | 7% (8.8 this run) | 51 | 70 | Puppeteer +19 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **67.3 · B** | **70.6 · BB** | |

## Facts side by side

| Fact | Anchor Browser | Puppeteer |
| --- | --- | --- |
| Kind | HTTP API | SDK + MCP |
| Vendor | Anchor Forge Inc. | Google |
| Hosted endpoint | `https://api.anchorbrowser.io` | no (local only) |
| Transports | HTTP |  |
| Auth | OAuth or key | None |
| Pricing | Freemium | Free |
| x402 | no | no |
| Licence | Proprietary 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-2.0 | Apache-2.0 |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-07-28 | 2026-10-08 |
| Terms last updated | no document linked | no document linked |
| Privacy policy last updated | 2026-02-24 | no 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 |  |  |
| Popularity | 43k npm/wk, 10k PyPI/wk | 96k 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).


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/anchor-browser-vs-puppeteer.json, and with the fewest tokens: https://www.anchorterminal.com/compare/anchor-browser-vs-puppeteer.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "anchor-browser", "b": "puppeteer"}`. From a terminal: `anchor compare anchor-browser puppeteer`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/anchor-browser.json and https://www.anchorterminal.com/api/v1/tools/puppeteer.json

## Other comparisons with Anchor Browser or Puppeteer

- [agent-browser vs Anchor Browser](https://www.anchorterminal.com/compare/agent-browser-vs-anchor-browser.md)
- [agent-browser vs Puppeteer](https://www.anchorterminal.com/compare/agent-browser-vs-puppeteer.md)
- [Airtop vs Anchor Browser](https://www.anchorterminal.com/compare/airtop-vs-anchor-browser.md)
- [Airtop vs Puppeteer](https://www.anchorterminal.com/compare/airtop-vs-puppeteer.md)
- [Anchor Browser vs Browser Use](https://www.anchorterminal.com/compare/anchor-browser-vs-browser-use.md)
- [Anchor Browser vs Browserbase](https://www.anchorterminal.com/compare/anchor-browser-vs-browserbase.md)
- [Anchor Browser vs Browserless](https://www.anchorterminal.com/compare/anchor-browser-vs-browserless.md)
- [Anchor Browser vs Chrome DevTools MCP](https://www.anchorterminal.com/compare/anchor-browser-vs-chrome-devtools-mcp.md)
- [Anchor Browser vs Hyperbrowser](https://www.anchorterminal.com/compare/anchor-browser-vs-hyperbrowser.md)
- [Anchor Browser vs Notte](https://www.anchorterminal.com/compare/anchor-browser-vs-notte.md)
- [Anchor Browser vs Playwright MCP](https://www.anchorterminal.com/compare/anchor-browser-vs-playwright-mcp.md)
- [Anchor Browser vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/anchor-browser-vs-puppeteer-reference-server-archived.md)
- [Anchor Browser vs Selenium](https://www.anchorterminal.com/compare/anchor-browser-vs-selenium.md)
- [Anchor Browser vs Skyvern](https://www.anchorterminal.com/compare/anchor-browser-vs-skyvern.md)
- [Anchor Browser vs Steel](https://www.anchorterminal.com/compare/anchor-browser-vs-steel.md)
- [Anchor Browser vs TinyFish](https://www.anchorterminal.com/compare/anchor-browser-vs-tinyfish.md)
- [Browser Use vs Puppeteer](https://www.anchorterminal.com/compare/browser-use-vs-puppeteer.md)
- [Browserbase vs Puppeteer](https://www.anchorterminal.com/compare/browserbase-vs-puppeteer.md)
- [Browserless vs Puppeteer](https://www.anchorterminal.com/compare/browserless-vs-puppeteer.md)
- [Chrome DevTools MCP vs Puppeteer](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-puppeteer.md)
- [Hyperbrowser vs Puppeteer](https://www.anchorterminal.com/compare/hyperbrowser-vs-puppeteer.md)
- [Notte vs Puppeteer](https://www.anchorterminal.com/compare/notte-vs-puppeteer.md)
- [Playwright MCP vs Puppeteer](https://www.anchorterminal.com/compare/playwright-mcp-vs-puppeteer.md)
- [Puppeteer vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/puppeteer-vs-puppeteer-reference-server-archived.md)
- [Puppeteer vs Selenium](https://www.anchorterminal.com/compare/puppeteer-vs-selenium.md)
- [Puppeteer vs Skyvern](https://www.anchorterminal.com/compare/puppeteer-vs-skyvern.md)
- [Puppeteer vs Steel](https://www.anchorterminal.com/compare/puppeteer-vs-steel.md)
- [Puppeteer vs TinyFish](https://www.anchorterminal.com/compare/puppeteer-vs-tinyfish.md)