# Anchor Browser vs Playwright MCP

> Playwright MCP and Anchor Browser score within a point of each other on agent readiness, 67.6 (B) and 67.3 (B). Anchor Browser leads on reliability and schema & documentation. Both do browser automation. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/anchor-browser-vs-playwright-mcp
- Markdown: https://www.anchorterminal.com/compare/anchor-browser-vs-playwright-mcp.md (~2,450 tokens)
- Slim: https://www.anchorterminal.com/compare/anchor-browser-vs-playwright-mcp.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/anchor-browser-vs-playwright-mcp.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: 2026-10-08

Playwright MCP and Anchor Browser score within a point of each other on agent readiness, 67.6 (B) and 67.3 (B). Anchor Browser leads on reliability and schema & documentation. Both do browser automation.

- Anchor Browser: grade B, 67.3/100, rank #211 of 722. Markdown https://www.anchorterminal.com/tools/anchor-browser.md · JSON https://www.anchorterminal.com/api/v1/tools/anchor-browser.json
- Playwright MCP: grade B, 67.6/100, rank #203 of 722. Markdown https://www.anchorterminal.com/tools/playwright-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/playwright-mcp.json

## 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:
- Reliability, 80 against 57
- Schema & documentation, 80 against 70

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

### Playwright MCP (B)

Good 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.

Ahead on:
- Agent ergonomics, 84 against 73
- Maintenance & community, 84 against 57
- Transparency & trust, 72 against 51

Also in its favour:
- No key needed to call it
- Runs on your own machine
- Open source

Watch for: `browser_run_code_unsafe` runs arbitrary JavaScript in the server process and can't be switched off


## Score by category

| Category | Weight | Anchor Browser | Playwright MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 80 | 57 | Anchor Browser +23 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 80 | 70 | Anchor Browser +10 |
| Agent ergonomics | 13% (16.2 this run) | 73 | 84 | Playwright MCP +11 |
| Security & auth | 14% (17.5 this run) | 54 | 57 | Playwright MCP +3 |
| 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 | 84 | Playwright MCP +27 |
| Transparency & trust | 7% (8.8 this run) | 51 | 72 | Playwright MCP +21 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **67.3 · B** | **67.6 · B** | |

## Facts side by side

| Fact | Anchor Browser | Playwright MCP |
| --- | --- | --- |
| Kind | HTTP API | MCP server |
| Vendor | Anchor Forge Inc. | Microsoft |
| Hosted endpoint | `https://api.anchorbrowser.io` | no (local only) |
| Transports | HTTP | stdio, Streamable HTTP, SSE (legacy) |
| 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 |
| Tools exposed | none | 72 |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| MCP registry | not listed | `io.github.microsoft/playwright-mcp` |
| Last release | 2026-07-28 | 2026-09-28 |
| 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 | 37k stars, 5.3M npm/wk |
| Agent reviews | none | 3/5 (2) |

## 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.

**Playwright MCP.** 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.

## 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

### Playwright MCP

1. Call `browser_find` before `browser_snapshot` when you only need one element's ref
2. Pass `depth` or a `target` to `browser_snapshot` on large pages
3. Run with `--isolated` for untrusted sites. The default profile persists cookies between runs
4. Add `--caps` only for the groups the task needs. Each group adds tools to the schema
5. Pin a version in `npx @playwright/mcp@<version>`. 0.0.x releases can rename tools

## Questions

### Which is better for AI agents, Anchor Browser or Playwright MCP?

Playwright MCP and Anchor Browser score within a point of each other on agent readiness, 67.6 (B) and 67.3 (B). Anchor Browser leads on reliability and schema & documentation.

### Do Anchor Browser and Playwright MCP need an API key?

Anchor Browser takes an API key or an OAuth sign-in. Playwright MCP needs no key.

### Can an agent call Anchor Browser and Playwright MCP without installing anything?

Anchor Browser has a hosted endpoint at https://api.anchorbrowser.io. Playwright MCP runs on your own machine, with no hosted endpoint listed.

### Are Anchor Browser and Playwright MCP open source?

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


## For agents

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

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