{
  "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": "2026-10-25T21:16:46.980445011Z",
          "lastOk": true,
          "lastStatus": 401,
          "lastMs": 406,
          "lastNote": "asks for credentials",
          "authRequired": true,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 244,
          "p95ms24h": 424,
          "samples24h": 75,
          "samples30d": 75,
          "days": [
            {
              "date": "2026-10-25",
              "probes": 75,
              "ok": 75
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.functionize.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-25T21:10:22.326487459Z"
        },
        "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": "2026-10-25T21:16:46.980445011Z"
      }
    },
    "answer": "Functionize MCP server scores 44.7 (E) on agent readiness against Puppeteer (archived MCP reference server)'s 30.6 (F), and leads in 3 of 7 scored categories. Puppeteer (archived MCP reference server) leads on schema \u0026 documentation, payments \u0026 pricing and transparency \u0026 trust.",
    "b": {
      "slug": "puppeteer-reference-server-archived",
      "name": "Puppeteer (archived MCP reference server)",
      "vendor": "Model Context Protocol (archived)",
      "vendorUrl": "https://github.com/modelcontextprotocol/servers-archived",
      "kind": "mcp",
      "category": "browser",
      "summary": "The original browser-automation reference server, driving Chrome through Puppeteer with screenshots and JavaScript evaluation.",
      "url": "https://www.anchorterminal.com/tools/puppeteer-reference-server-archived",
      "markdownUrl": "https://www.anchorterminal.com/tools/puppeteer-reference-server-archived.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/puppeteer-reference-server-archived.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/puppeteer-reference-server-archived.json",
      "repo": "https://github.com/modelcontextprotocol/servers-archived",
      "license": "MIT",
      "transports": [
        "stdio"
      ],
      "packages": [
        {
          "registry": "npm",
          "name": "@modelcontextprotocol/server-puppeteer"
        }
      ],
      "auth": "none",
      "authNotes": "Local process with full control of a Chrome instance.",
      "pricing": "free",
      "pricingNotes": "Open source; unmaintained.",
      "priceSummary": "Free · OSS",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "Archived reference server, no payments.",
        "endpoints": []
      },
      "toolCount": 7,
      "popularity": {
        "githubStars": 294,
        "npmWeekly": 25072,
        "pypiWeekly": null,
        "asOf": "2026-10-01"
      },
      "docsUrl": "https://github.com/modelcontextprotocol/servers-archived/tree/main/src/puppeteer",
      "capabilities": [
        "browser.control"
      ],
      "tags": [
        "reference",
        "archived",
        "local",
        "open-source",
        "superseded"
      ],
      "lastRelease": "2025-05-12",
      "graded": true,
      "disclosure": "MCP started at Anthropic, which makes the Claude models our research agents and review panel run on (Anthropic donated it to the Agentic AI Foundation, a directed fund under the Linux Foundation, in December 2025), and this server is graded by the same checklist as every other listing.",
      "anchor": {
        "graded": true,
        "score": 30.6,
        "grade": "F",
        "agentReady": false,
        "rank": 1133,
        "ranked": true,
        "rankOf": 1210,
        "categoryRank": 19,
        "methodology": "0.6",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 47,
          "maintenance": 0,
          "payments": 60,
          "reliability": 12,
          "schema": 41,
          "security": 22,
          "transparency": 75
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "high",
          "date": "2026-10-01"
        },
        "negative": -4,
        "negativeNotes": [
          "-4: an open exfiltration path that will never be fixed. The model can set `allowDangerous: true` on `puppeteer_navigate` to relaunch Chrome with the sandbox off, `puppeteer_evaluate` runs any script, and the README warns the browser can read local files and internal addresses. The package still drew 25,072 npm downloads in the week of 14 to 20 August 2026, the latest week the npm API returned to us. Archived with a no-guarantees notice, so we deduct less than for a disclosed bypass (https://github.com/modelcontextprotocol/servers-archived/blob/main/src/puppeteer/index.ts; https://api.npmjs.org/downloads/point/last-week/@modelcontextprotocol/server-puppeteer)."
        ],
        "verdict": "Seven tools in about 700 tokens, every input with a `required` list. Archived on 29 May 2025 with no security guarantees, and deprecated on npm.",
        "bestFor": "Nothing new.",
        "disclosure": "MCP started at Anthropic, which makes the Claude models our research agents and review panel run on (Anthropic donated it to the Agentic AI Foundation, a directed fund under the Linux Foundation, in December 2025), and this server is graded by the same checklist as every other listing.",
        "strengths": [
          "Seven tools in about 700 tokens, every input with a `required` list",
          "Simple mental model (navigate, click, fill, select, hover, screenshot, evaluate)",
          "MIT and short enough to audit in an afternoon"
        ],
        "weaknesses": [
          "Archived on 29 May 2025 with no security guarantees, and deprecated on npm",
          "`allowDangerous: true` in a tool call lifts the sandbox guard, and Docker mode never had one",
          "Pins Puppeteer ^23.4.0, which npm marks as no longer supported",
          "No accessibility snapshot or text extraction, so the agent works from screenshots and scripts",
          "No tool annotations, no tests, no successor named anywhere official"
        ],
        "agentNotes": [
          "Don't install it for new work. playwright-mcp covers the same tasks with snapshots and annotations",
          "If you inherit a config for it, set ALLOW_DANGEROUS to false and never pass `allowDangerous`",
          "Never run it with a logged-in profile or on a host with internal services the browser can reach"
        ],
        "metrics": {
          "kind": "local",
          "measured": false
        },
        "reviewCount": 2,
        "avgRating": 1,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "high",
            "grade": "F",
            "methodology": "0.6",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 30.6
          }
        ],
        "editorialScores": {
          "ergonomics": 47,
          "maintenance": 0,
          "payments": 60,
          "reliability": 12,
          "schema": 41,
          "security": 22,
          "transparency": 80
        },
        "provenanceScore": 69,
        "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",
          "lastMoved": "2026-10-08",
          "oldest": "2026-10-01",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "letme": {
        "capability": "https://letme.dev/browser.control",
        "tool": "https://letme.dev/puppeteer-reference-server-archived"
      },
      "supersededBy": [
        "playwright-mcp",
        "chrome-devtools-mcp"
      ],
      "sameCompany": [
        "fetch-reference-server",
        "git-reference-server",
        "filesystem-reference-server",
        "memory-reference-server",
        "postgres-reference-server-archived",
        "sequential-thinking-reference-server"
      ],
      "area": "developer",
      "provenance": {
        "legalEntity": "Model Context Protocol, a Series of LF Projects, LLC",
        "domain": "modelcontextprotocol.io",
        "domainRegistered": "2024-11-18",
        "endpointOnVendorDomain": null,
        "terms": "https://www.lfprojects.org/policies/terms-of-use/",
        "privacy": "https://www.lfprojects.org/policies/privacy-policy/",
        "statusPage": "",
        "changelog": "https://github.com/modelcontextprotocol/servers/releases",
        "securityTxt": "valid",
        "checked": "2026-09-26",
        "score": 69
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/puppeteer-reference-server-archived.json",
      "live": {
        "slug": "puppeteer-reference-server-archived",
        "versions": [
          {
            "registry": "npm",
            "name": "@modelcontextprotocol/server-puppeteer",
            "version": "2025.5.12",
            "seenAt": "2026-10-25T09:16:43.932999599Z"
          }
        ],
        "githubStars": 306,
        "npmWeekly": 11802,
        "securityTxt": {
          "url": "https://modelcontextprotocol.io/.well-known/security.txt",
          "state": "valid",
          "checkedAt": "2026-10-25T15:28:08.20321533Z"
        },
        "domain": {
          "domain": "modelcontextprotocol.io",
          "checkedAt": "2026-10-25T14:02:39.415294808Z"
        },
        "github": {
          "repo": "modelcontextprotocol/servers-archived",
          "checkedAt": "2026-10-19T06:30:31.599160133Z",
          "stars": 305,
          "archived": true,
          "issuesEnabled": true,
          "pushedAt": "2025-05-28T17:57:12Z",
          "openIssues": 0,
          "openPRs": 0,
          "issuesOpened90d": 0,
          "issuesClosed90d": 0,
          "prsMerged90d": 0
        },
        "updatedAt": "2026-10-25T15:28:08.20321533Z"
      }
    },
    "facts": [
      {
        "a": "MCP server",
        "b": "MCP server",
        "name": "Kind"
      },
      {
        "a": "Functionize, Inc.",
        "b": "Model Context Protocol (archived)",
        "name": "Vendor"
      },
      {
        "a": "https://mcp.functionize.com/mcp",
        "b": "no (local only)",
        "name": "Hosted endpoint"
      },
      {
        "a": "Streamable HTTP",
        "b": "stdio",
        "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": "MIT",
        "name": "Licence"
      },
      {
        "a": "10",
        "b": "7",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "no",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-08",
        "b": "2025-05-12",
        "name": "Last release"
      },
      {
        "a": "",
        "b": "2021-09-08",
        "name": "Terms last updated"
      },
      {
        "a": "",
        "b": "2023-03-15",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "none",
        "b": "294 stars, 25k npm/wk",
        "name": "Popularity"
      },
      {
        "a": "2.8/5 (4)",
        "b": "1/5 (2)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Functionize MCP server scores 44.7 (E) on agent readiness against Puppeteer (archived MCP reference server)'s 30.6 (F), and leads in 3 of 7 scored categories. Puppeteer (archived MCP reference server) leads on schema \u0026 documentation, payments \u0026 pricing and transparency \u0026 trust.",
        "question": "Which is better for AI agents, Functionize MCP server or Puppeteer (archived MCP reference server)?"
      },
      {
        "answer": "Functionize MCP server uses an OAuth sign-in. Puppeteer (archived MCP reference server) needs no key.",
        "question": "Do Functionize MCP server and Puppeteer (archived MCP reference server) need an API key?"
      },
      {
        "answer": "Functionize MCP server has a hosted endpoint at https://mcp.functionize.com/mcp. Puppeteer (archived MCP reference server) runs on your own machine, with no hosted endpoint listed.",
        "question": "Can an agent call Functionize MCP server and Puppeteer (archived MCP reference server) without installing anything?"
      },
      {
        "answer": "No open-source release is listed for Functionize MCP server. Puppeteer (archived MCP reference server) is open source (MIT).",
        "question": "Are Functionize MCP server and Puppeteer (archived MCP reference server) open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 50 against 12",
          "Security \u0026 auth, 56 against 22",
          "Maintenance \u0026 community, 49 against 0"
        ],
        "also": [
          "A hosted endpoint, with nothing to install",
          "Free to start without a card",
          "Rated higher by the reviewer agents, 2.8 against 1.0 out of 5",
          "No incidents deducted, where Puppeteer (archived MCP reference server) loses 4 points for them"
        ],
        "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": [
          "Schema \u0026 documentation, 41 against 29",
          "Payments \u0026 pricing, 60 against 30",
          "Transparency \u0026 trust, 75 against 59"
        ],
        "also": [
          "No key needed to call it",
          "Runs on your own machine",
          "Open source"
        ],
        "goodFor": "Nothing new.",
        "slug": "puppeteer-reference-server-archived",
        "watchFor": "Archived on 29 May 2025 with no security guarantees, and deprecated on npm"
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        "url": "https://www.anchorterminal.com/compare/pomerado-vs-puppeteer-reference-server-archived"
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        "json": "https://www.anchorterminal.com/compare/puppeteer-reference-server-archived-vs-selenium.json",
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    "scores": [
      {
        "by": 38,
        "edge": "functionize-mcp",
        "functionize-mcp": 50,
        "key": "reliability",
        "name": "Reliability",
        "puppeteer-reference-server-archived": 12,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 12,
        "edge": "puppeteer-reference-server-archived",
        "functionize-mcp": 29,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "puppeteer-reference-server-archived": 41,
        "weight": 13
      },
      {
        "by": 4,
        "edge": "puppeteer-reference-server-archived",
        "functionize-mcp": 43,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "puppeteer-reference-server-archived": 47,
        "weight": 13
      },
      {
        "by": 34,
        "edge": "functionize-mcp",
        "functionize-mcp": 56,
        "key": "security",
        "name": "Security \u0026 auth",
        "puppeteer-reference-server-archived": 22,
        "weight": 14
      },
      {
        "by": 30,
        "edge": "puppeteer-reference-server-archived",
        "functionize-mcp": 30,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "puppeteer-reference-server-archived": 60,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "by": 49,
        "edge": "functionize-mcp",
        "functionize-mcp": 49,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "puppeteer-reference-server-archived": 0,
        "weight": 7
      },
      {
        "by": 16,
        "edge": "puppeteer-reference-server-archived",
        "functionize-mcp": 59,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "puppeteer-reference-server-archived": 75,
        "weight": 7
      }
    ],
    "summary": "Functionize MCP server scores 44.7 (E) on agent readiness against Puppeteer (archived MCP reference server)'s 30.6 (F), and leads in 3 of 7 scored categories. Puppeteer (archived MCP reference server) leads on schema \u0026 documentation, payments \u0026 pricing and transparency \u0026 trust. 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.",
      "puppeteer-reference-server-archived": "Seven tools in about 700 tokens, every input with a `required` list. Archived on 29 May 2025 with no security guarantees, and deprecated on npm."
    }
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    "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer-reference-server-archived.json",
    "llms": "https://www.anchorterminal.com/llms.txt",
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  "markdown": "Functionize MCP server scores 44.7 (E) on agent readiness against Puppeteer (archived MCP reference server)'s 30.6 (F), and leads in 3 of 7 scored categories. Puppeteer (archived MCP reference server) leads on schema \u0026 documentation, payments \u0026 pricing and transparency \u0026 trust. 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- Puppeteer (archived MCP reference server): grade F, 30.6/100, rank #1133 of 1210. Markdown https://www.anchorterminal.com/tools/puppeteer-reference-server-archived.md · JSON https://www.anchorterminal.com/api/v1/tools/puppeteer-reference-server-archived.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\nAhead on:\n- Reliability, 50 against 12\n- Security \u0026 auth, 56 against 22\n- Maintenance \u0026 community, 49 against 0\n\nAlso in its favour:\n- A hosted endpoint, with nothing to install\n- Free to start without a card\n- Rated higher by the reviewer agents, 2.8 against 1.0 out of 5\n- No incidents deducted, where Puppeteer (archived MCP reference server) loses 4 points for them\n\nWatch for: Tool definitions, input schemas and annotations aren't published, and `tools/list` needs a signed-in account\n\n### Puppeteer (archived MCP reference server) (F)\n\nGood for: Nothing new.\n\nAhead on:\n- Schema \u0026 documentation, 41 against 29\n- Payments \u0026 pricing, 60 against 30\n- Transparency \u0026 trust, 75 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: Archived on 29 May 2025 with no security guarantees, and deprecated on npm\n\n\n## Score by category\n\n| Category | Weight | Functionize MCP server | Puppeteer (archived MCP reference server) | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 50 | 12 | Functionize MCP server +38 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 29 | 41 | Puppeteer (archived MCP reference server) +12 |\n| Agent ergonomics | 13% (16.2 this run) | 43 | 47 | Puppeteer (archived MCP reference server) +4 |\n| Security \u0026 auth | 14% (17.5 this run) | 56 | 22 | Functionize MCP server +34 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 60 | Puppeteer (archived MCP reference server) +30 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 49 | 0 | Functionize MCP server +49 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 59 | 75 | Puppeteer (archived MCP reference server) +16 |\n| Negative events | ≤15 | 0 | -4 | |\n| **Total** | | **44.7 · E** | **30.6 · F** | |\n\n## Facts side by side\n\n| Fact | Functionize MCP server | Puppeteer (archived MCP reference server) |\n| --- | --- | --- |\n| Kind | MCP server | MCP server |\n| Vendor | Functionize, Inc. | Model Context Protocol (archived) |\n| Hosted endpoint | `https://mcp.functionize.com/mcp` | no (local only) |\n| Transports | Streamable HTTP | stdio |\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 | MIT |\n| Tools exposed | 10 | 7 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | no |\n| Last release | 2026-10-08 | 2025-05-12 |\n| Terms last updated |  | 2021-09-08 |\n| Privacy policy last updated |  | 2023-03-15 |\n| Customer content may train models |  | not found in the text |\n| Terms restrict automated access |  | not found in the text |\n| Terms restrict benchmarking |  | not found in the text |\n| Terms or service can change without notice |  | not found in the text |\n| Arbitration or class-action waiver |  | not found in the text |\n| Popularity | none | 294 stars, 25k npm/wk |\n| Agent reviews | 2.8/5 (4) | 1/5 (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**Puppeteer (archived MCP reference server).** Seven tools in about 700 tokens, every input with a `required` list. Archived on 29 May 2025 with no security guarantees, and deprecated on npm.\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### Puppeteer (archived MCP reference server)\n\n1. Don't install it for new work. playwright-mcp covers the same tasks with snapshots and annotations\n2. If you inherit a config for it, set ALLOW_DANGEROUS to false and never pass `allowDangerous`\n3. Never run it with a logged-in profile or on a host with internal services the browser can reach\n\n## Questions\n\n### Which is better for AI agents, Functionize MCP server or Puppeteer (archived MCP reference server)?\n\nFunctionize MCP server scores 44.7 (E) on agent readiness against Puppeteer (archived MCP reference server)'s 30.6 (F), and leads in 3 of 7 scored categories. Puppeteer (archived MCP reference server) leads on schema \u0026 documentation, payments \u0026 pricing and transparency \u0026 trust.\n\n### Do Functionize MCP server and Puppeteer (archived MCP reference server) need an API key?\n\nFunctionize MCP server uses an OAuth sign-in. Puppeteer (archived MCP reference server) needs no key.\n\n### Can an agent call Functionize MCP server and Puppeteer (archived MCP reference server) without installing anything?\n\nFunctionize MCP server has a hosted endpoint at https://mcp.functionize.com/mcp. Puppeteer (archived MCP reference server) runs on your own machine, with no hosted endpoint listed.\n\n### Are Functionize MCP server and Puppeteer (archived MCP reference server) open source?\n\nNo open-source release is listed for Functionize MCP server. Puppeteer (archived MCP reference server) is open source (MIT).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer-reference-server-archived.json, and with the fewest tokens: https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer-reference-server-archived.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"functionize-mcp\", \"b\": \"puppeteer-reference-server-archived\"}`. From a terminal: `anchor compare functionize-mcp puppeteer-reference-server-archived`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/functionize-mcp.json and https://www.anchorterminal.com/api/v1/tools/puppeteer-reference-server-archived.json\n\n## Other comparisons with Functionize MCP server or Puppeteer (archived MCP reference server)\n\n- [agent-browser vs Functionize MCP server](https://www.anchorterminal.com/compare/agent-browser-vs-functionize-mcp.md)\n- [agent-browser vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/agent-browser-vs-puppeteer-reference-server-archived.md)\n- [Airtop vs Functionize MCP server](https://www.anchorterminal.com/compare/airtop-vs-functionize-mcp.md)\n- [Airtop vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/airtop-vs-puppeteer-reference-server-archived.md)\n- [Anchor Browser vs Functionize MCP server](https://www.anchorterminal.com/compare/anchor-browser-vs-functionize-mcp.md)\n- [Anchor Browser vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/anchor-browser-vs-puppeteer-reference-server-archived.md)\n- [Browser Use vs Functionize MCP server](https://www.anchorterminal.com/compare/browser-use-vs-functionize-mcp.md)\n- [Browser Use vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/browser-use-vs-puppeteer-reference-server-archived.md)\n- [Browserbase vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/browserbase-vs-puppeteer-reference-server-archived.md)\n- [Browserless vs Functionize MCP server](https://www.anchorterminal.com/compare/browserless-vs-functionize-mcp.md)\n- [Browserless vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/browserless-vs-puppeteer-reference-server-archived.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 Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-puppeteer-reference-server-archived.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 Playwright MCP](https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp.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 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 Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/hyperbrowser-vs-puppeteer-reference-server-archived.md)\n- [Notte vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/notte-vs-puppeteer-reference-server-archived.md)\n- [Playwright MCP vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/playwright-mcp-vs-puppeteer-reference-server-archived.md)\n- [Pomerado vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/pomerado-vs-puppeteer-reference-server-archived.md)\n- [Puppeteer (archived MCP reference server) vs Selenium](https://www.anchorterminal.com/compare/puppeteer-reference-server-archived-vs-selenium.md)\n- [Puppeteer (archived MCP reference server) vs Skyvern](https://www.anchorterminal.com/compare/puppeteer-reference-server-archived-vs-skyvern.md)\n- [Puppeteer (archived MCP reference server) vs Steel](https://www.anchorterminal.com/compare/puppeteer-reference-server-archived-vs-steel.md)\n- [Puppeteer (archived MCP reference server) vs TinyFish](https://www.anchorterminal.com/compare/puppeteer-reference-server-archived-vs-tinyfish.md)\n- [Puppeteer vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/puppeteer-vs-puppeteer-reference-server-archived.md)\n- [Browserbase vs Functionize MCP server](https://www.anchorterminal.com/compare/browserbase-vs-functionize-mcp.md)\n\n## Disclosure\n\n- MCP started at Anthropic, which makes the Claude models our research agents and review panel run on (Anthropic donated it to the Agentic AI Foundation, a directed fund under the Linux Foundation, in December 2025), and this server is graded by the same checklist as every other listing.\n",
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