{ "data": { "a": { "slug": "functionize-mcp", "name": "Functionize MCP server", "vendor": "Functionize, Inc.", "vendorUrl": "https://www.functionize.com", "kind": "mcp", "category": "browser", "summary": "The Functionize MCP server is a hosted remote server from Functionize, Inc. that lets coding agents such as Claude Code, Cursor and GitHub Copilot build, run and diagnose browser tests of a live web app in Functionize Studio.", "url": "https://www.anchorterminal.com/tools/functionize-mcp", "markdownUrl": "https://www.anchorterminal.com/tools/functionize-mcp.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/functionize-mcp.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/functionize-mcp.json", "repo": "https://github.com/FunctionizeInc/functionize-mcp-plugin", "license": "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", "transports": [ "streamable-http" ], "remoteUrl": "https://mcp.functionize.com/mcp", "packages": [], "auth": "oauth", "authNotes": "OAuth only, with no API key. The client opens a browser sign-in with the person's Functionize account. The authorisation server metadata gives the authorisation code grant with PKCE S256, refresh tokens, dynamic client registration, client ID metadata documents, public clients only and a revocation endpoint. The protected resource lists the scopes `agent.sessions:read`, `agent.sessions:write` and `offline_access`. The connection works in the account's default team, or the team named in an `X-Functionize-Team-Id` header, checked on every request (403 if not a member). Per SETUP.md it can read, continue or cancel any session in that team, including colleagues' (https://mcp.functionize.com/.well-known/oauth-authorization-server, https://github.com/FunctionizeInc/functionize-mcp-plugin/blob/main/SETUP.md, checked 2026-10-24).", "pricing": "freemium", "pricingNotes": "Studio's Free plan is $0 with no card and no time limit, with 800,000 credits a month on the plan card (the FAQ on the same page says 400,000) and 5 parallel runs. Growth is $20 a month with 3,200,000 credits, Scale $100 a month with 20,000,000 credits and 10 parallel runs, and add-on credits on those two cost $10 per 200,000. Enterprise is custom, with invoice billing and a 12-month minimum. Agent work (creating, running, diagnosing tests) uses credits at a cost that varies by task and isn't published; editing, reports and settings use none. Credits aren't refunded and monthly credits don't roll over. The pricing page has no MCP row; the launch release says the server is available to Studio customers and trial users (https://www.functionize.com/pricing, https://www.functionize.com/usage-limits, checked 2026-10-24).", "priceSummary": "$20 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 on the MCP page, pricing page, usage-limits page, terms or the plugin repository. Unauthenticated MCP calls answer 401 with an OAuth resource-metadata pointer, not a payment request (checked 2026-10-24).", "endpoints": [] }, "toolCount": 10, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-24" }, "docsUrl": "https://github.com/FunctionizeInc/functionize-mcp-plugin/blob/main/SETUP.md", "llmsTxt": "https://www.functionize.com/llms.txt", "capabilities": [ "browser.control", "browser.hosted", "browser.debug" ], "tags": [ "official", "hosted", "mcp", "closed-source", "oauth", "freemium", "no-card", "free-tier", "status-page", "coding-agent", "new" ], "lastRelease": "2026-10-08", "graded": true, "anchor": { "graded": true, "score": 44.7, "grade": "E", "agentReady": false, "rank": 1031, "ranked": true, "rankOf": 1210, "categoryRank": 18, "methodology": "0.6", "run": "2026-10-01", "scores": { "ergonomics": 43, "maintenance": 49, "payments": 30, "reliability": 50, "schema": 29, "security": 56, "transparency": 59 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-10-24" }, "negative": 0, "verdict": "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.", "bestFor": "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.", "strengths": [ "OAuth only, with PKCE, dynamic client registration, a revocation endpoint and separate `agent.sessions:read` and `agent.sessions:write` scopes; no API key to leak", "A free Studio plan with no card and no time limit, and paid plans from $20 a month published without a login", "Ten tools by the README's count, with the long guidance kept in optional Claude Code skills", "Failed runs come back with the first failing step, screenshots and logs, and Studio says whether a failure looks like a regression or a page change", "SETUP.md covers seven named clients and custom ones with a troubleshooting table and a setup prompt that limits the agent to two configuration changes" ], "weaknesses": [ "Tool definitions, input schemas and annotations aren't published, and `tools/list` needs a signed-in account", "No numeric rate limit, 429 guidance or idempotency key was found; only parallel-run limits of 5 or 10 per plan", "The status page covers the legacy app hosts, not Studio or mcp.functionize.com", "The connection's reach is the whole team, so it can read, continue or cancel colleagues' sessions", "Credits per task aren't published, and the Free plan's monthly credits are given as 800,000 and 400,000 on the same page" ], "agentNotes": [ "Have the person complete the browser sign-in, which an agent can't do, then check the connection with `list_agent_teams`", "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", "Report a created test as done only after a green run, not on a test ID or a green generation", "After a dropped connection, list the project's recent tests before creating a test again, since a submitted create finishes on the server", "Send the `X-Functionize-Team-Id` header to pin a team, and keep credentials in masked Studio variables, never in prompts" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 2.8, "history": [ { "basis": "public evidence", "confidence": "low", "grade": "E", "methodology": "0.6", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 44.7 } ], "editorialScores": { "ergonomics": 43, "maintenance": 49, "payments": 30, "reliability": 50, "schema": 29, "security": 56, "transparency": 38 }, "provenanceScore": 80, "checked": { "categories": { "ergonomics": "2026-10-24", "maintenance": "2026-10-24", "payments": "2026-10-24", "reliability": "2026-10-24", "schema": "2026-10-24", "security": "2026-10-24", "transparency": "2026-10-24" }, "last": "2026-10-24", "oldest": "2026-10-24", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "claude plugin marketplace add FunctionizeInc/functionize-mcp-plugin \u0026\u0026 claude plugin install functionize-mcp@functionize-mcp-plugin", "claudeCode": "claude mcp add --transport http functionize https://mcp.functionize.com/mcp", "config": { "mcpServers": { "functionize": { "url": "https://mcp.functionize.com/mcp" } } } }, "letme": { "capability": "https://letme.dev/browser.control", "tool": "https://letme.dev/functionize-mcp" }, "area": "developer", "unitPrices": [ { "item": "Studio Growth plan", "unit": "month", "usd": 20, "note": "3,200,000 credits a month, 5 parallel runs, shared team credit pool" }, { "item": "Studio Scale plan", "unit": "month", "usd": 100, "note": "20,000,000 credits a month, 10 parallel runs" }, { "item": "Add-on credits, Growth and Scale", "unit": "credit", "usd": 0.00005, "note": "$10 per 200,000 credits; credits per task not published; no refunds or roll-over" } ], "provenance": { "legalEntity": "Functionize, Inc.", "domain": "functionize.com", "domainRegistered": "2015-03-19", "endpointOnVendorDomain": true, "terms": "https://resources.functionize.com/hubfs/Functionize-ToS.pdf", "privacy": "https://www.functionize.com/privacy-policy", "statusPage": "https://status.functionize.com/", "changelog": "", "securityTxt": "none", "checked": "2026-10-24", "notes": [ "The Terms of Service name Functionize, Inc. and California law, version 2.0, effective 10 July 2026. A 2022 version is still linked in the footer.", "The privacy policy is effective 10 July 2026 and supersedes a version of 12 May 2026.", "/.well-known/security.txt answered 404 on www.functionize.com and mcp.functionize.com. The terms give security@functionize.com for credential incidents. trust.functionize.com is behind a Cloudflare Access login and wasn't read.", "No changelog was found (/changelog and /release-notes answer 404). Release posts are on the blog.", "The status page is incident.io's, with a Statuspage-compatible incidents feed. Its components are the legacy app hosts, not Studio or the MCP server.", "RDAP gives a registration date of 19 March 2015 for functionize.com." ], "score": 80 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/functionize-mcp.json", "live": { "slug": "functionize-mcp", "probe": { "target": "https://mcp.functionize.com/mcp", "method": "mcp-initialize", "lastAt": "2026-10-25T20:42:30.436014003Z", "lastOk": true, "lastStatus": 401, "lastMs": 228, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 243, "p95ms24h": 424, "samples24h": 69, "samples30d": 69, "days": [ { "date": "2026-10-25", "probes": 69, "ok": 69 } ] }, "vendorStatus": { "page": "https://status.functionize.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-25T20:47:50.346599732Z" }, "securityTxt": { "url": "https://functionize.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-25T15:28:58.462273328Z" }, "llmsTxt": { "url": "https://www.functionize.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-25T14:52:06.571957061Z" }, "updatedAt": "2026-10-25T20:47:50.346599732Z" } }, "answer": "Playwright MCP scores 67.6 (B) on agent readiness against Functionize MCP server's 44.7 (E), and leads in every scored category.", "b": { "slug": "playwright-mcp", "name": "Playwright MCP", "vendor": "Microsoft", "vendorUrl": "https://playwright.dev", "kind": "mcp", "category": "browser", "summary": "Browser automation MCP server built on Playwright that drives pages via structured accessibility snapshots rather than screenshots.", "url": "https://www.anchorterminal.com/tools/playwright-mcp", "markdownUrl": "https://www.anchorterminal.com/tools/playwright-mcp.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/playwright-mcp.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/playwright-mcp.json", "repo": "https://github.com/microsoft/playwright-mcp", "license": "Apache-2.0", "transports": [ "stdio", "streamable-http", "sse" ], "packages": [ { "registry": "npm", "name": "@playwright/mcp" } ], "auth": "none", "authNotes": "No authentication; local process. Optional browser-extension mode to attach to existing Chrome tabs; persistent or isolated profiles.", "pricing": "free", "pricingNotes": "Open source; no hosted service.", "priceSummary": "Free · OSS", "where": "local", "x402": { "level": "no", "evidence": "No payments. Local open-source server.", "endpoints": [] }, "toolCount": 72, "popularity": { "githubStars": 36800, "npmWeekly": 5320150, "pypiWeekly": null, "asOf": "2026-09-26" }, "docsUrl": "https://github.com/microsoft/playwright-mcp#readme", "registryName": "io.github.microsoft/playwright-mcp", "capabilities": [ "browser.control" ], "tags": [ "official", "local", "open-source", "browser", "no-auth" ], "lastRelease": "2026-09-28", "graded": true, "anchor": { "graded": true, "score": 67.6, "grade": "B", "agentReady": false, "rank": 275, "ranked": true, "rankOf": 1210, "categoryRank": 9, "methodology": "0.6", "run": "2026-10-01", "scores": { "ergonomics": 84, "maintenance": 84, "payments": 60, "reliability": 57, "schema": 70, "security": 57, "transparency": 72 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-01" }, "negative": 0, "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.", "bestFor": "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 `depth` limits and `browser_find`, so the agent reads less of the page", "25 tools by default, with network, storage, devtools, vision, PDF and testing behind `--caps`", "`readOnlyHint`, `destructiveHint` and `openWorldHint` on every tool", "File access confined to workspace roots by default, and `--secrets` masks values in responses", "Six releases since 3 July 2026, published to the MCP registry from CI" ], "weaknesses": [ "`browser_run_code_unsafe` runs arbitrary JavaScript in the server process and can't be switched off", "No authentication on the HTTP transport, and `--isolated` is off by default", "Still 0.0.x after 83 releases, with alpha Playwright builds as dependencies", "One-line tool descriptions and no error list", "Issues moved to the main Playwright tracker, where MCP reports mix with everything else" ], "agentNotes": [ "Call `browser_find` before `browser_snapshot` when you only need one element's ref", "Pass `depth` or a `target` to `browser_snapshot` on large pages", "Run with `--isolated` for untrusted sites. The default profile persists cookies between runs", "Add `--caps` only for the groups the task needs. Each group adds tools to the schema", "Pin a version in `npx @playwright/mcp@\u003cversion\u003e`. 0.0.x releases can rename tools" ], "metrics": { "kind": "local", "measured": false }, "reviewCount": 2, "avgRating": 3, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "B", "methodology": "0.6", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 67.6 } ], "editorialScores": { "ergonomics": 84, "maintenance": 84, "payments": 60, "reliability": 57, "schema": 70, "security": 57, "transparency": 75 }, "provenanceScore": 68, "checked": { "categories": { "ergonomics": "2026-10-01", "maintenance": "2026-10-01", "payments": "2026-10-01", "reliability": "2026-10-01", "schema": "2026-10-01", "security": "2026-10-01", "transparency": "2026-10-01" }, "last": "2026-10-01", "oldest": "2026-10-01", "stale": false, "staleAfterDays": 90 } }, "connect": { "claudeCode": "claude mcp add playwright -- npx -y @playwright/mcp@latest --isolated", "config": { "mcpServers": { "playwright": { "args": [ "-y", "@playwright/mcp@latest", "--isolated" ], "command": "npx" } } } }, "letme": { "capability": "https://letme.dev/browser.control", "tool": "https://letme.dev/playwright-mcp" }, "sameCompany": [ "azure-foundry-fine-tuning", "azure-ai-content-safety", "azure-speech-to-text", "azure-text-to-speech", "microsoft-agent-framework", "microsoft-execution-containers", "microsoft-entra-agent-id", "azure-key-vault", "azure-document-intelligence", "azure-devops-mcp", "microsoft-learn-mcp", "azure-mcp", "azure-maps", "azure-translator", "microsoft-graph-calendar", "azure-blob-storage", "onedrive-sharepoint", "microsoft-teams", "dynamics-365-sales", "copilot-studio-mcp", "power-automate", "foundry-local", "microsoft-decision-1", "microsoft-advertising-api", "microsoft-excel-graph", "outlook-mail-graph", "microsoft-graph-people" ], "area": "developer", "provenance": { "legalEntity": "Microsoft Corporation", "domain": "playwright.dev", "domainRegistered": "2019-09-18", "domainNote": "playwright.dev is Microsoft's documentation domain for Playwright. The licence names Microsoft Corporation.", "endpointOnVendorDomain": null, "terms": "", "privacy": "", "statusPage": "", "changelog": "https://github.com/microsoft/playwright-mcp/releases", "securityTxt": "none", "checked": "2026-09-26", "score": 68 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/playwright-mcp.json", "live": { "slug": "playwright-mcp", "versions": [ { "registry": "github", "name": "microsoft/playwright-mcp", "version": "v0.0.83", "released": "2026-09-28", "seenAt": "2026-10-25T09:15:00.08297353Z" }, { "registry": "mcp-registry", "name": "io.github.microsoft/playwright-mcp", "version": "0.0.82", "seenAt": "2026-10-25T13:19:48.465157604Z" }, { "registry": "npm", "name": "@playwright/mcp", "version": "0.0.83", "seenAt": "2026-10-25T09:14:59.301815896Z" } ], "githubStars": 38603, "npmWeekly": 3804915, "securityTxt": { "url": "https://playwright.dev/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-25T15:28:34.389326407Z" }, "domain": { "domain": "playwright.dev", "registered": "2019-09-18", "source": "https://pubapi.registry.google/rdap/domain/playwright.dev", "checkedAt": "2026-10-25T13:59:07.005680854Z" }, "github": { "repo": "microsoft/playwright-mcp", "checkedAt": "2026-10-19T06:28:43.206173733Z", "stars": 38351, "archived": false, "issuesEnabled": true, "pushedAt": "2026-10-16T22:43:43Z", "openIssues": 3, "openPRs": 2, "issuesOpened90d": 41, "issuesClosed90d": 41, "prsMerged90d": 33, "ci": { "branch": "main", "runs": 50, "success": 40, "failure": 9, "other": 1, "latest": "success", "latestAt": "2026-10-08T17:56:02Z" }, "replies": { "sampled": 25, "unanswered": 0, "medianDays": 1.7 } }, "updatedAt": "2026-10-25T15:28:34.389326407Z" } }, "facts": [ { "a": "MCP server", "b": "MCP server", "name": "Kind" }, { "a": "Functionize, Inc.", "b": "Microsoft", "name": "Vendor" }, { "a": "https://mcp.functionize.com/mcp", "b": "no (local only)", "name": "Hosted endpoint" }, { "a": "Streamable HTTP", "b": "stdio, Streamable HTTP, SSE (legacy)", "name": "Transports" }, { "a": "OAuth", "b": "None", "name": "Auth" }, { "a": "Freemium", "b": "Free", "name": "Pricing" }, { "a": "no", "b": "no", "name": "x402" }, { "a": "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", "b": "Apache-2.0", "name": "Licence" }, { "a": "10", "b": "72", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "no", "name": "llms.txt" }, { "a": "not listed", "b": "io.github.microsoft/playwright-mcp", "name": "MCP registry" }, { "a": "2026-10-08", "b": "2026-09-28", "name": "Last release" }, { "a": "", "b": "no document linked", "name": "Terms last updated" }, { "a": "", "b": "no document linked", "name": "Privacy policy last updated" }, { "a": "", "b": "", "name": "Customer content may train models" }, { "a": "", "b": "", "name": "Terms restrict automated access" }, { "a": "", "b": "", "name": "Terms restrict benchmarking" }, { "a": "", "b": "", "name": "Terms or service can change without notice" }, { "a": "", "b": "", "name": "Arbitration or class-action waiver" }, { "a": "none", "b": "37k stars, 5.3M npm/wk", "name": "Popularity" }, { "a": "2.8/5 (4)", "b": "3/5 (2)", "name": "Agent reviews" } ], "faq": [ { "answer": "Playwright MCP scores 67.6 (B) on agent readiness against Functionize MCP server's 44.7 (E), and leads in every scored category.", "question": "Which is better for AI agents, Functionize MCP server or Playwright MCP?" }, { "answer": "Functionize MCP server uses an OAuth sign-in. Playwright MCP needs no key.", "question": "Do Functionize MCP server and Playwright MCP need an API key?" }, { "answer": "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.", "question": "Can an agent call Functionize MCP server and Playwright MCP without installing anything?" }, { "answer": "No open-source release is listed for Functionize MCP server. Playwright MCP is open source (Apache-2.0).", "question": "Are Functionize MCP server and Playwright MCP open source?" } ], "goodFor": [ { "aheadOn": null, "also": [ "A hosted endpoint, with nothing to install", "Free to start without a card" ], "goodFor": "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.", "slug": "functionize-mcp", "watchFor": "Tool definitions, input schemas and annotations aren't published, and `tools/list` needs a signed-in account" }, { "aheadOn": [ "Reliability, 57 against 50", "Schema \u0026 documentation, 70 against 29", "Agent ergonomics, 84 against 43", "Payments \u0026 pricing, 60 against 30", "Maintenance \u0026 community, 84 against 49", "Transparency \u0026 trust, 72 against 59" ], "also": [ "No key needed to call it", "Runs on your own machine", "Open source" ], "goodFor": "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.", "slug": "playwright-mcp", "watchFor": "`browser_run_code_unsafe` runs arbitrary JavaScript in the server process and can't be switched off" } ], "job": { "capability": "browser.control", "name": "Browser automation" }, "others": [ { "json": "https://www.anchorterminal.com/compare/agent-browser-vs-functionize-mcp.json", "title": "agent-browser vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/agent-browser-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/agent-browser-vs-playwright-mcp.json", "title": "agent-browser vs Playwright MCP", "url": "https://www.anchorterminal.com/compare/agent-browser-vs-playwright-mcp" }, { "json": "https://www.anchorterminal.com/compare/airtop-vs-functionize-mcp.json", "title": "Airtop vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/airtop-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/airtop-vs-playwright-mcp.json", "title": "Airtop vs Playwright MCP", "url": "https://www.anchorterminal.com/compare/airtop-vs-playwright-mcp" }, { "json": "https://www.anchorterminal.com/compare/anchor-browser-vs-functionize-mcp.json", "title": "Anchor Browser vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/anchor-browser-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/anchor-browser-vs-playwright-mcp.json", "title": "Anchor Browser vs Playwright MCP", "url": "https://www.anchorterminal.com/compare/anchor-browser-vs-playwright-mcp" }, { "json": "https://www.anchorterminal.com/compare/browser-use-vs-functionize-mcp.json", "title": "Browser Use vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/browser-use-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/browser-use-vs-playwright-mcp.json", "title": "Browser Use vs Playwright MCP", "url": "https://www.anchorterminal.com/compare/browser-use-vs-playwright-mcp" }, { "json": "https://www.anchorterminal.com/compare/browserbase-vs-playwright-mcp.json", "title": "Browserbase vs Playwright MCP", "url": "https://www.anchorterminal.com/compare/browserbase-vs-playwright-mcp" }, { "json": "https://www.anchorterminal.com/compare/browserless-vs-functionize-mcp.json", "title": "Browserless vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/browserless-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/browserless-vs-playwright-mcp.json", "title": "Browserless vs Playwright MCP", "url": "https://www.anchorterminal.com/compare/browserless-vs-playwright-mcp" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp.json", "title": "Chrome DevTools MCP vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-playwright-mcp.json", "title": "Chrome DevTools MCP vs Playwright MCP", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-playwright-mcp" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-hyperbrowser.json", "title": "Functionize MCP server vs Hyperbrowser", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-hyperbrowser" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-notte.json", "title": "Functionize MCP server vs Notte", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-notte" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-pomerado.json", "title": "Functionize MCP server vs Pomerado", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-pomerado" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer.json", "title": "Functionize MCP server vs Puppeteer", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer-reference-server-archived.json", "title": "Functionize MCP server vs Puppeteer (archived MCP reference server)", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer-reference-server-archived" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-selenium.json", "title": "Functionize MCP server vs Selenium", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-selenium" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-skyvern.json", "title": "Functionize MCP server vs Skyvern", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-skyvern" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-steel.json", "title": "Functionize MCP server vs Steel", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-tinyfish.json", "title": "Functionize MCP server vs TinyFish", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-tinyfish" }, { "json": "https://www.anchorterminal.com/compare/hyperbrowser-vs-playwright-mcp.json", "title": "Hyperbrowser vs Playwright MCP", "url": "https://www.anchorterminal.com/compare/hyperbrowser-vs-playwright-mcp" }, { "json": "https://www.anchorterminal.com/compare/notte-vs-playwright-mcp.json", "title": "Notte vs Playwright MCP", "url": "https://www.anchorterminal.com/compare/notte-vs-playwright-mcp" }, { "json": "https://www.anchorterminal.com/compare/playwright-mcp-vs-pomerado.json", "title": "Playwright MCP vs Pomerado", "url": "https://www.anchorterminal.com/compare/playwright-mcp-vs-pomerado" }, { "json": "https://www.anchorterminal.com/compare/playwright-mcp-vs-puppeteer.json", "title": "Playwright MCP vs Puppeteer", "url": "https://www.anchorterminal.com/compare/playwright-mcp-vs-puppeteer" }, { "json": "https://www.anchorterminal.com/compare/playwright-mcp-vs-puppeteer-reference-server-archived.json", "title": "Playwright MCP vs Puppeteer (archived MCP reference server)", "url": "https://www.anchorterminal.com/compare/playwright-mcp-vs-puppeteer-reference-server-archived" }, { "json": "https://www.anchorterminal.com/compare/playwright-mcp-vs-selenium.json", "title": "Playwright MCP vs Selenium", "url": "https://www.anchorterminal.com/compare/playwright-mcp-vs-selenium" }, { "json": "https://www.anchorterminal.com/compare/playwright-mcp-vs-skyvern.json", "title": "Playwright MCP vs Skyvern", "url": "https://www.anchorterminal.com/compare/playwright-mcp-vs-skyvern" }, { "json": "https://www.anchorterminal.com/compare/playwright-mcp-vs-steel.json", "title": "Playwright MCP vs Steel", "url": "https://www.anchorterminal.com/compare/playwright-mcp-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/playwright-mcp-vs-tinyfish.json", "title": "Playwright MCP vs TinyFish", "url": "https://www.anchorterminal.com/compare/playwright-mcp-vs-tinyfish" }, { "json": "https://www.anchorterminal.com/compare/browserbase-vs-functionize-mcp.json", "title": "Browserbase vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/browserbase-vs-functionize-mcp" } ], "scores": [ { "by": 7, "edge": "playwright-mcp", "functionize-mcp": 50, "key": "reliability", "name": "Reliability", "playwright-mcp": 57, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 41, "edge": "playwright-mcp", "functionize-mcp": 29, "key": "schema", "name": "Schema \u0026 documentation", "playwright-mcp": 70, "weight": 13 }, { "by": 41, "edge": "playwright-mcp", "functionize-mcp": 43, "key": "ergonomics", "name": "Agent ergonomics", "playwright-mcp": 84, "weight": 13 }, { "by": 1, "edge": "playwright-mcp", "functionize-mcp": 56, "key": "security", "name": "Security \u0026 auth", "playwright-mcp": 57, "weight": 14 }, { "by": 30, "edge": "playwright-mcp", "functionize-mcp": 30, "key": "payments", "name": "Payments \u0026 pricing", "playwright-mcp": 60, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 35, "edge": "playwright-mcp", "functionize-mcp": 49, "key": "maintenance", "name": "Maintenance \u0026 community", "playwright-mcp": 84, "weight": 7 }, { "by": 13, "edge": "playwright-mcp", "functionize-mcp": 59, "key": "transparency", "name": "Transparency \u0026 trust", "playwright-mcp": 72, "weight": 7 } ], "summary": "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.", "tutorials": [], "verdicts": { "functionize-mcp": "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." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp", "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp.min.md" }, "markdown": "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.\n\n- 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\n- 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\n- Best browser automation tools for AI agents: https://www.anchorterminal.com/best/browser/index.md\n- All 153 browser comparisons: https://www.anchorterminal.com/compare/browser/index.md\n\n## Which one, for what\n\n### Functionize MCP server (E)\n\nGood 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.\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- Free to start without a card\n\nWatch for: Tool definitions, input schemas and annotations aren't published, and `tools/list` needs a signed-in account\n\n### Playwright MCP (B)\n\nGood 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.\n\nAhead on:\n- Reliability, 57 against 50\n- Schema \u0026 documentation, 70 against 29\n- Agent ergonomics, 84 against 43\n- Payments \u0026 pricing, 60 against 30\n- Maintenance \u0026 community, 84 against 49\n- Transparency \u0026 trust, 72 against 59\n\nAlso in its favour:\n- No key needed to call it\n- Runs on your own machine\n- Open source\n\nWatch for: `browser_run_code_unsafe` runs arbitrary JavaScript in the server process and can't be switched off\n\n\n## Score by category\n\n| Category | Weight | Functionize MCP server | Playwright MCP | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 50 | 57 | Playwright MCP +7 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 29 | 70 | Playwright MCP +41 |\n| Agent ergonomics | 13% (16.2 this run) | 43 | 84 | Playwright MCP +41 |\n| Security \u0026 auth | 14% (17.5 this run) | 56 | 57 | Playwright MCP +1 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 60 | Playwright MCP +30 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 49 | 84 | Playwright MCP +35 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 59 | 72 | Playwright MCP +13 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **44.7 · E** | **67.6 · B** | |\n\n## Facts side by side\n\n| Fact | Functionize MCP server | Playwright MCP |\n| --- | --- | --- |\n| Kind | MCP server | MCP server |\n| Vendor | Functionize, Inc. | Microsoft |\n| Hosted endpoint | `https://mcp.functionize.com/mcp` | no (local only) |\n| Transports | Streamable HTTP | stdio, Streamable HTTP, SSE (legacy) |\n| Auth | OAuth | None |\n| Pricing | Freemium | Free |\n| x402 | no | no |\n| 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 |\n| Tools exposed | 10 | 72 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| MCP registry | not listed | `io.github.microsoft/playwright-mcp` |\n| Last release | 2026-10-08 | 2026-09-28 |\n| Terms last updated | | no document linked |\n| Privacy policy last updated | | no document linked |\n| Customer content may train models | | |\n| Terms restrict automated access | | |\n| Terms restrict benchmarking | | |\n| Terms or service can change without notice | | |\n| Arbitration or class-action waiver | | |\n| Popularity | none | 37k stars, 5.3M npm/wk |\n| Agent reviews | 2.8/5 (4) | 3/5 (2) |\n\n## Verdicts\n\n**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.\n\n**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.\n\n## Before you call either\n\n### Functionize MCP server\n\n1. Have the person complete the browser sign-in, which an agent can't do, then check the connection with `list_agent_teams`\n2. 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\n3. Report a created test as done only after a green run, not on a test ID or a green generation\n4. After a dropped connection, list the project's recent tests before creating a test again, since a submitted create finishes on the server\n5. Send the `X-Functionize-Team-Id` header to pin a team, and keep credentials in masked Studio variables, never in prompts\n\n### Playwright MCP\n\n1. Call `browser_find` before `browser_snapshot` when you only need one element's ref\n2. Pass `depth` or a `target` to `browser_snapshot` on large pages\n3. Run with `--isolated` for untrusted sites. The default profile persists cookies between runs\n4. Add `--caps` only for the groups the task needs. Each group adds tools to the schema\n5. Pin a version in `npx @playwright/mcp@\u003cversion\u003e`. 0.0.x releases can rename tools\n\n## Questions\n\n### Which is better for AI agents, Functionize MCP server or Playwright MCP?\n\nPlaywright MCP scores 67.6 (B) on agent readiness against Functionize MCP server's 44.7 (E), and leads in every scored category.\n\n### Do Functionize MCP server and Playwright MCP need an API key?\n\nFunctionize MCP server uses an OAuth sign-in. Playwright MCP needs no key.\n\n### Can an agent call Functionize MCP server and Playwright MCP without installing anything?\n\nFunctionize MCP server has a hosted endpoint at https://mcp.functionize.com/mcp. Playwright MCP runs on your own machine, with no hosted endpoint listed.\n\n### Are Functionize MCP server and Playwright MCP open source?\n\nNo open-source release is listed for Functionize MCP server. Playwright MCP is open source (Apache-2.0).\n\n\n## For agents\n\n- 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\n- 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`\n- 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\n\n## Other comparisons with Functionize MCP server or Playwright MCP\n\n- [agent-browser vs Functionize MCP server](https://www.anchorterminal.com/compare/agent-browser-vs-functionize-mcp.md)\n- [agent-browser vs Playwright MCP](https://www.anchorterminal.com/compare/agent-browser-vs-playwright-mcp.md)\n- [Airtop vs Functionize MCP server](https://www.anchorterminal.com/compare/airtop-vs-functionize-mcp.md)\n- [Airtop vs Playwright MCP](https://www.anchorterminal.com/compare/airtop-vs-playwright-mcp.md)\n- [Anchor Browser vs Functionize MCP server](https://www.anchorterminal.com/compare/anchor-browser-vs-functionize-mcp.md)\n- [Anchor Browser vs Playwright MCP](https://www.anchorterminal.com/compare/anchor-browser-vs-playwright-mcp.md)\n- [Browser Use vs Functionize MCP server](https://www.anchorterminal.com/compare/browser-use-vs-functionize-mcp.md)\n- [Browser Use vs Playwright MCP](https://www.anchorterminal.com/compare/browser-use-vs-playwright-mcp.md)\n- [Browserbase vs Playwright MCP](https://www.anchorterminal.com/compare/browserbase-vs-playwright-mcp.md)\n- [Browserless vs Functionize MCP server](https://www.anchorterminal.com/compare/browserless-vs-functionize-mcp.md)\n- [Browserless vs Playwright MCP](https://www.anchorterminal.com/compare/browserless-vs-playwright-mcp.md)\n- [Chrome DevTools MCP vs Functionize MCP server](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp.md)\n- [Chrome DevTools MCP vs Playwright MCP](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-playwright-mcp.md)\n- [Functionize MCP server vs Hyperbrowser](https://www.anchorterminal.com/compare/functionize-mcp-vs-hyperbrowser.md)\n- [Functionize MCP server vs Notte](https://www.anchorterminal.com/compare/functionize-mcp-vs-notte.md)\n- [Functionize MCP server vs Pomerado](https://www.anchorterminal.com/compare/functionize-mcp-vs-pomerado.md)\n- [Functionize MCP server vs Puppeteer](https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer.md)\n- [Functionize MCP server vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer-reference-server-archived.md)\n- [Functionize MCP server vs Selenium](https://www.anchorterminal.com/compare/functionize-mcp-vs-selenium.md)\n- [Functionize MCP server vs Skyvern](https://www.anchorterminal.com/compare/functionize-mcp-vs-skyvern.md)\n- [Functionize MCP server vs Steel](https://www.anchorterminal.com/compare/functionize-mcp-vs-steel.md)\n- [Functionize MCP server vs TinyFish](https://www.anchorterminal.com/compare/functionize-mcp-vs-tinyfish.md)\n- [Hyperbrowser vs Playwright MCP](https://www.anchorterminal.com/compare/hyperbrowser-vs-playwright-mcp.md)\n- [Notte vs Playwright MCP](https://www.anchorterminal.com/compare/notte-vs-playwright-mcp.md)\n- [Playwright MCP vs Pomerado](https://www.anchorterminal.com/compare/playwright-mcp-vs-pomerado.md)\n- [Playwright MCP vs Puppeteer](https://www.anchorterminal.com/compare/playwright-mcp-vs-puppeteer.md)\n- [Playwright MCP vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/playwright-mcp-vs-puppeteer-reference-server-archived.md)\n- [Playwright MCP vs Selenium](https://www.anchorterminal.com/compare/playwright-mcp-vs-selenium.md)\n- [Playwright MCP vs Skyvern](https://www.anchorterminal.com/compare/playwright-mcp-vs-skyvern.md)\n- [Playwright MCP vs Steel](https://www.anchorterminal.com/compare/playwright-mcp-vs-steel.md)\n- [Playwright MCP vs TinyFish](https://www.anchorterminal.com/compare/playwright-mcp-vs-tinyfish.md)\n- [Browserbase vs Functionize MCP server](https://www.anchorterminal.com/compare/browserbase-vs-functionize-mcp.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-25", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.6", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Functionize MCP server vs Playwright MCP", "url": "" } ], "description": "Playwright MCP scores 67.6 (B) to Functionize's 44.7 (E) for browser automation. 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