# Functionize MCP server vs Playwright MCP

> Playwright MCP scores 67.6 (B) to Functionize's 44.7 (E) for browser automation. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp
- Markdown: https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp.md (~2,850 tokens)
- Slim: https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp.min.md (~730 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/functionize-mcp-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
- MCP: https://www.anchorterminal.com/mcp (the whole catalogue as tools, no key)
- Licence: CC BY 4.0, credit Anchor Terminal and link this page (https://www.anchorterminal.com/terms/#data)
- Updated: 2026-10-25

Playwright MCP scores 67.6 (B) on agent readiness against Functionize MCP server's 44.7 (E), and leads in every scored category. Both do browser automation.

- Functionize MCP server: grade E, 44.7/100, rank #1031 of 1210. Markdown https://www.anchorterminal.com/tools/functionize-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/functionize-mcp.json
- Playwright MCP: grade B, 67.6/100, rank #275 of 1210. Markdown https://www.anchorterminal.com/tools/playwright-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/playwright-mcp.json
- Best browser automation tools for AI agents: https://www.anchorterminal.com/best/browser/index.md
- All 153 browser comparisons: https://www.anchorterminal.com/compare/browser/index.md

## Which one, for what

### Functionize MCP server (E)

Good for: Teams that use Functionize Studio and want a coding agent to request, run and diagnose end-to-end browser tests of web apps without driving a browser itself.

Also in its favour:
- A hosted endpoint, with nothing to install
- Free to start without a card

Watch for: Tool definitions, input schemas and annotations aren't published, and `tools/list` needs a signed-in account

### 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:
- Reliability, 57 against 50
- Schema & documentation, 70 against 29
- Agent ergonomics, 84 against 43
- Payments & pricing, 60 against 30
- Maintenance & community, 84 against 49
- Transparency & trust, 72 against 59

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 | Functionize MCP server | Playwright MCP | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 50 | 57 | Playwright MCP +7 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 29 | 70 | Playwright MCP +41 |
| Agent ergonomics | 13% (16.2 this run) | 43 | 84 | Playwright MCP +41 |
| Security & auth | 14% (17.5 this run) | 56 | 57 | Playwright MCP +1 |
| Payments & pricing | 10% (12.5 this run) | 30 | 60 | Playwright MCP +30 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 49 | 84 | Playwright MCP +35 |
| Transparency & trust | 7% (8.8 this run) | 59 | 72 | Playwright MCP +13 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **44.7 · E** | **67.6 · B** | |

## Facts side by side

| Fact | Functionize MCP server | Playwright MCP |
| --- | --- | --- |
| Kind | MCP server | MCP server |
| Vendor | Functionize, Inc. | Microsoft |
| Hosted endpoint | `https://mcp.functionize.com/mcp` | no (local only) |
| Transports | Streamable HTTP | stdio, Streamable HTTP, SSE (legacy) |
| Auth | OAuth | None |
| Pricing | Freemium | Free |
| x402 | no | no |
| Licence | Proprietary hosted service under Functionize's Terms of Service (version 2.0, effective 10 July 2026). The Claude Code plugin and its two skills are MIT-licensed; the server's source isn't public | Apache-2.0 |
| Tools exposed | 10 | 72 |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| MCP registry | not listed | `io.github.microsoft/playwright-mcp` |
| Last release | 2026-10-08 | 2026-09-28 |
| Terms last updated |  | no document linked |
| Privacy policy last updated |  | 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 | none | 37k stars, 5.3M npm/wk |
| Agent reviews | 2.8/5 (4) | 3/5 (2) |

## Verdicts

**Functionize MCP server.** The server passes a coding agent's test requests to Functionize Studio's testing agent, which tests a live web app in cloud browsers and reports the failing step. It uses OAuth with read and write scopes and has a no-card free plan. Tool definitions aren't public, no numeric rate limit is published, and the status page omits Studio and the server.

**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

### Functionize MCP server

1. Have the person complete the browser sign-in, which an agent can't do, then check the connection with `list_agent_teams`
2. Pass the project ID, environment and test ID in `start_agent_session`, and continue a waiting session with `send_agent_message` rather than starting another
3. Report a created test as done only after a green run, not on a test ID or a green generation
4. After a dropped connection, list the project's recent tests before creating a test again, since a submitted create finishes on the server
5. Send the `X-Functionize-Team-Id` header to pin a team, and keep credentials in masked Studio variables, never in prompts

### 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, Functionize MCP server or Playwright MCP?

Playwright MCP scores 67.6 (B) on agent readiness against Functionize MCP server's 44.7 (E), and leads in every scored category.

### Do Functionize MCP server and Playwright MCP need an API key?

Functionize MCP server uses an OAuth sign-in. Playwright MCP needs no key.

### Can an agent call Functionize MCP server and Playwright MCP without installing anything?

Functionize MCP server has a hosted endpoint at https://mcp.functionize.com/mcp. Playwright MCP runs on your own machine, with no hosted endpoint listed.

### Are Functionize MCP server and Playwright MCP open source?

No open-source release is listed for Functionize MCP server. Playwright MCP is open source (Apache-2.0).


## For agents

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

## Other comparisons with Functionize MCP server or Playwright MCP

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

---

Query this catalogue directly over MCP: https://www.anchorterminal.com/mcp (Streamable HTTP, no key). How: https://www.anchorterminal.com/agents/#mcp