{
  "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": "Selenium scores 73.6 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in 6 of 7 scored categories. Functionize MCP server leads on security \u0026 auth.",
    "b": {
      "slug": "selenium",
      "name": "Selenium",
      "vendor": "Selenium project (Software Freedom Conservancy)",
      "vendorUrl": "https://www.selenium.dev",
      "kind": "sdk",
      "category": "browser",
      "summary": "Selenium is the open-source browser automation project behind the W3C WebDriver standard, with official bindings for Java, Python, C#, Ruby and JavaScript and a self-hosted Grid server that runs browsers on other machines.",
      "url": "https://www.anchorterminal.com/tools/selenium",
      "markdownUrl": "https://www.anchorterminal.com/tools/selenium.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/selenium.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/selenium.json",
      "repo": "https://github.com/SeleniumHQ/selenium",
      "license": "Apache-2.0",
      "transports": [
        "http"
      ],
      "packages": [
        {
          "registry": "pypi",
          "name": "selenium"
        },
        {
          "registry": "npm",
          "name": "selenium-webdriver"
        },
        {
          "registry": "maven",
          "name": "org.seleniumhq.selenium:selenium-java"
        },
        {
          "registry": "nuget",
          "name": "Selenium.WebDriver"
        },
        {
          "registry": "rubygems",
          "name": "selenium-webdriver"
        }
      ],
      "auth": "none",
      "authNotes": "No account or key for the bindings, which run on the owner's machine. Grid accepts sessions without authentication unless both `--username` and `--password` are set, and Nodes register with a shared `--registration-secret` when one is configured. Site logins live in the browser profile or cookies the script sets.",
      "pricing": "free",
      "pricingNotes": "Free and open source under Apache-2.0, with nothing to buy and no hosted service from the project. Grid is self-hosted. Commercial clouds that run Selenium sessions are separate companies (checked 2026-10-14).",
      "priceSummary": "Free · OSS",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the docs, llms.txt or the source (checked 2026-10-14).",
        "endpoints": []
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 34542,
        "npmWeekly": 1807038,
        "pypiWeekly": 6884385,
        "asOf": "2026-10-14"
      },
      "docsUrl": "https://www.selenium.dev/documentation/",
      "llmsTxt": "https://www.selenium.dev/llms.txt",
      "capabilities": [
        "browser.control",
        "browser.debug"
      ],
      "tags": [
        "official",
        "local",
        "open-source",
        "browser",
        "sdk",
        "python",
        "java",
        "javascript",
        "dotnet",
        "ruby",
        "llms-txt",
        "no-auth",
        "webdriver"
      ],
      "lastRelease": "2026-10-09",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 73.6,
        "grade": "BB",
        "agentReady": true,
        "rank": 89,
        "ranked": true,
        "rankOf": 1210,
        "categoryRank": 3,
        "methodology": "0.6",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 70,
          "maintenance": 94,
          "payments": 60,
          "reliability": 90,
          "schema": 89,
          "security": 43,
          "transparency": 74
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-17"
        },
        "negative": 0,
        "verdict": "Selenium is stable, Apache-2.0 software on 4.51.0 with bindings in five languages, CI passing on trunk, an llms.txt and an agent guide added in September 2026. It has no MCP server of its own, Selenium Manager sends usage statistics by default, and Grid accepts unauthenticated sessions unless a username and password are set.",
        "bestFor": "Agents that write test or automation scripts in any of five languages, and teams with a Grid.",
        "strengths": [
          "Official bindings for Java, Python, C#, Ruby and JavaScript, released together, 4.51.0 on 9 October 2026",
          "llms.txt and a page on using AI coding agents with Selenium, last changed 28 September 2026",
          "Code samples in the docs are run in CI against current releases",
          "An error page per common exception, such as `StaleElementReferenceException`, gives causes and fixes",
          "The 15 most recent CI runs on trunk, 13 October 2026, all succeeded or were cancelled"
        ],
        "weaknesses": [
          "No MCP server from the project. The docs point to community servers and say they are third-party",
          "Selenium Manager sends anonymised usage statistics to Plausible once a day by default, until `SE_AVOID_STATS=true` is set",
          "Grid has no authentication unless `--username` and `--password` are both set",
          "The project says it does not follow semantic versioning, and removes deprecated APIs in minor releases",
          "No accessibility snapshot call, so agents read page source or query elements one by one"
        ],
        "agentNotes": [
          "Install with `pip install selenium` (Python 3.10 or later) and let Selenium Manager fetch drivers. Do not set driver paths",
          "Use `WebDriverWait` with expected conditions, never fixed sleeps, and do not mix implicit and explicit waits",
          "Set `SE_AVOID_STATS=true` to stop Selenium Manager sending usage statistics",
          "Point coding agents at https://www.selenium.dev/llms.txt. Most Selenium 2 and 3 era examples use removed APIs",
          "Set `--username` and `--password` before exposing a Grid beyond localhost. Check `http://localhost:4444/status` before creating sessions"
        ],
        "metrics": {
          "kind": "local",
          "measured": false
        },
        "reviewCount": 4,
        "avgRating": 3.8,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "BB",
            "methodology": "0.6",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 73.6
          }
        ],
        "editorialScores": {
          "ergonomics": 70,
          "maintenance": 94,
          "payments": 60,
          "reliability": 90,
          "schema": 89,
          "security": 43,
          "transparency": 80
        },
        "provenanceScore": 68,
        "checked": {
          "categories": {
            "ergonomics": "2026-10-17",
            "maintenance": "2026-10-17",
            "payments": "2026-10-17",
            "reliability": "2026-10-17",
            "schema": "2026-10-17",
            "security": "2026-10-17",
            "transparency": "2026-10-17"
          },
          "last": "2026-10-17",
          "oldest": "2026-10-17",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "install": "pip install selenium",
        "http": "curl http://localhost:4444/status"
      },
      "letme": {
        "capability": "https://letme.dev/browser.control",
        "tool": "https://letme.dev/selenium"
      },
      "area": "developer",
      "provenance": {
        "legalEntity": "Software Freedom Conservancy",
        "domain": "selenium.dev",
        "domainRegistered": "2019-02-22",
        "domainNote": "NOTICE reads Copyright 2011-2026 Software Freedom Conservancy, which holds the project. RDAP gives selenium.dev a registration date of 22 February 2019. selenium.dev answers 404 for /.well-known/security.txt. Security reports go to security@seleniumhq.org.",
        "endpointOnVendorDomain": null,
        "terms": "",
        "privacy": "",
        "statusPage": "",
        "changelog": "https://github.com/SeleniumHQ/selenium/blob/trunk/py/CHANGES",
        "securityTxt": "none",
        "checked": "2026-10-14",
        "notes": [
          "No terms or privacy document governs this software beyond the Apache-2.0 licence, so `terms` and `privacy` are left out. selenium.dev has no privacy page (/privacy/ answers 404). Selenium Manager's data collection is described in its documentation page.",
          "Each binding keeps its own changelog. The Python one is linked, and the downloads page links the others.",
          "selenium.dev's robots.txt names all user agents with no Disallow lines, so every page was read."
        ],
        "score": 68
      },
      "requirements": {
        "agentAlone": true,
        "card": "no",
        "freeTier": true,
        "credential": "none",
        "hosting": [
          "self-hosted"
        ],
        "euResidency": "unknown",
        "trainsOnData": "no",
        "zeroRetention": "unknown",
        "selfHost": "yes"
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/selenium.json",
      "live": {
        "slug": "selenium",
        "versions": [
          {
            "registry": "github",
            "name": "SeleniumHQ/selenium",
            "version": "selenium-4.51.0",
            "released": "2026-10-09",
            "seenAt": "2026-10-25T09:21:22.348890386Z"
          },
          {
            "registry": "npm",
            "name": "selenium-webdriver",
            "version": "4.51.0",
            "seenAt": "2026-10-25T09:21:21.578234621Z"
          },
          {
            "registry": "pypi",
            "name": "selenium",
            "version": "4.51.0",
            "released": "2026-10-09",
            "seenAt": "2026-10-25T09:21:21.469242459Z"
          }
        ],
        "githubStars": 34566,
        "npmWeekly": 1021026,
        "pypiWeekly": 7344851,
        "securityTxt": {
          "url": "https://selenium.dev/.well-known/security.txt",
          "state": "none",
          "checkedAt": "2026-10-25T15:28:35.756163637Z"
        },
        "llmsTxt": {
          "url": "https://www.selenium.dev/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-25T14:53:10.967927176Z"
        },
        "domain": {
          "domain": "selenium.dev",
          "registered": "2019-02-22",
          "source": "https://pubapi.registry.google/rdap/domain/selenium.dev",
          "checkedAt": "2026-10-25T14:03:17.74427397Z"
        },
        "pages": [
          {
            "url": "https://raw.githubusercontent.com/SeleniumHQ/selenium/trunk/py/CHANGES",
            "kind": "changelog",
            "status": 304,
            "checkedAt": "2026-10-25T02:54:20.99413161Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "5dfce325ce99"
          }
        ],
        "github": {
          "repo": "seleniumhq/selenium",
          "checkedAt": "2026-10-19T06:46:49.71035366Z",
          "stars": 34559,
          "archived": false,
          "issuesEnabled": true,
          "pushedAt": "2026-10-19T00:22:50Z",
          "openIssues": 108,
          "openPRs": 90,
          "issuesOpened90d": 59,
          "issuesClosed90d": 48,
          "prsMerged90d": 301,
          "ci": {
            "branch": "trunk",
            "runs": 50,
            "success": 49,
            "failure": 1,
            "other": 0,
            "latest": "success",
            "latestAt": "2026-10-18T20:49:23Z"
          },
          "replies": {
            "sampled": 25,
            "unanswered": 7,
            "medianDays": 0.2
          }
        },
        "updatedAt": "2026-10-25T15:28:35.756163637Z"
      }
    },
    "facts": [
      {
        "a": "MCP server",
        "b": "SDK + MCP",
        "name": "Kind"
      },
      {
        "a": "Functionize, Inc.",
        "b": "Selenium project (Software Freedom Conservancy)",
        "name": "Vendor"
      },
      {
        "a": "https://mcp.functionize.com/mcp",
        "b": "no (local only)",
        "name": "Hosted endpoint"
      },
      {
        "a": "Streamable HTTP",
        "b": "HTTP",
        "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": "none",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-08",
        "b": "2026-10-09",
        "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": "35k stars, 1.8M npm/wk, 6.9M PyPI/wk",
        "name": "Popularity"
      },
      {
        "a": "2.8/5 (4)",
        "b": "3.8/5 (4)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Selenium scores 73.6 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in 6 of 7 scored categories. Functionize MCP server leads on security \u0026 auth.",
        "question": "Which is better for AI agents, Functionize MCP server or Selenium?"
      },
      {
        "answer": "Functionize MCP server has a hosted endpoint at https://mcp.functionize.com/mcp. No hosted endpoint is listed for Selenium.",
        "question": "Can an agent call Functionize MCP server and Selenium without installing anything?"
      },
      {
        "answer": "No open-source release is listed for Functionize MCP server. Selenium is open source (Apache-2.0).",
        "question": "Are Functionize MCP server and Selenium open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Security \u0026 auth, 56 against 43"
        ],
        "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, 90 against 50",
          "Schema \u0026 documentation, 89 against 29",
          "Agent ergonomics, 70 against 43",
          "Payments \u0026 pricing, 60 against 30",
          "Maintenance \u0026 community, 94 against 49",
          "Transparency \u0026 trust, 74 against 59"
        ],
        "also": [
          "Agent-ready, a grade of BB or better",
          "No key needed to call it",
          "Open source",
          "Rated higher by the reviewer agents, 3.8 against 2.8 out of 5"
        ],
        "goodFor": "Agents that write test or automation scripts in any of five languages, and teams with a Grid.",
        "slug": "selenium",
        "watchFor": "No MCP server from the project. The docs point to community servers and say they are third-party"
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        "edge": "selenium",
        "functionize-mcp": 50,
        "key": "reliability",
        "name": "Reliability",
        "selenium": 90,
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "by": 60,
        "edge": "selenium",
        "functionize-mcp": 29,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "selenium": 89,
        "weight": 13
      },
      {
        "by": 27,
        "edge": "selenium",
        "functionize-mcp": 43,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "selenium": 70,
        "weight": 13
      },
      {
        "by": 13,
        "edge": "functionize-mcp",
        "functionize-mcp": 56,
        "key": "security",
        "name": "Security \u0026 auth",
        "selenium": 43,
        "weight": 14
      },
      {
        "by": 30,
        "edge": "selenium",
        "functionize-mcp": 30,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "selenium": 60,
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
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        "by": 45,
        "edge": "selenium",
        "functionize-mcp": 49,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "selenium": 94,
        "weight": 7
      },
      {
        "by": 15,
        "edge": "selenium",
        "functionize-mcp": 59,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "selenium": 74,
        "weight": 7
      }
    ],
    "summary": "Selenium scores 73.6 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in 6 of 7 scored categories. Functionize MCP server leads on security \u0026 auth. 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.",
      "selenium": "Selenium is stable, Apache-2.0 software on 4.51.0 with bindings in five languages, CI passing on trunk, an llms.txt and an agent guide added in September 2026. It has no MCP server of its own, Selenium Manager sends usage statistics by default, and Grid accepts unauthenticated sessions unless a username and password are set."
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  "markdown": "Selenium scores 73.6 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in 6 of 7 scored categories. Functionize MCP server leads on security \u0026 auth. 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- Selenium: grade BB, 73.6/100, rank #89 of 1210. Markdown https://www.anchorterminal.com/tools/selenium.md · JSON https://www.anchorterminal.com/api/v1/tools/selenium.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- Security \u0026 auth, 56 against 43\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### Selenium (BB)\n\nGood for: Agents that write test or automation scripts in any of five languages, and teams with a Grid.\n\nAhead on:\n- Reliability, 90 against 50\n- Schema \u0026 documentation, 89 against 29\n- Agent ergonomics, 70 against 43\n- Payments \u0026 pricing, 60 against 30\n- Maintenance \u0026 community, 94 against 49\n- Transparency \u0026 trust, 74 against 59\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n- No key needed to call it\n- Open source\n- Rated higher by the reviewer agents, 3.8 against 2.8 out of 5\n\nWatch for: No MCP server from the project. The docs point to community servers and say they are third-party\n\n\n## Score by category\n\n| Category | Weight | Functionize MCP server | Selenium | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 50 | 90 | Selenium +40 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 29 | 89 | Selenium +60 |\n| Agent ergonomics | 13% (16.2 this run) | 43 | 70 | Selenium +27 |\n| Security \u0026 auth | 14% (17.5 this run) | 56 | 43 | Functionize MCP server +13 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 60 | Selenium +30 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 49 | 94 | Selenium +45 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 59 | 74 | Selenium +15 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **44.7 · E** | **73.6 · BB** | |\n\n## Facts side by side\n\n| Fact | Functionize MCP server | Selenium |\n| --- | --- | --- |\n| Kind | MCP server | SDK + MCP |\n| Vendor | Functionize, Inc. | Selenium project (Software Freedom Conservancy) |\n| Hosted endpoint | `https://mcp.functionize.com/mcp` | no (local only) |\n| Transports | Streamable HTTP | HTTP |\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 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-08 | 2026-10-09 |\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 | 35k stars, 1.8M npm/wk, 6.9M PyPI/wk |\n| Agent reviews | 2.8/5 (4) | 3.8/5 (4) |\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**Selenium.** Selenium is stable, Apache-2.0 software on 4.51.0 with bindings in five languages, CI passing on trunk, an llms.txt and an agent guide added in September 2026. It has no MCP server of its own, Selenium Manager sends usage statistics by default, and Grid accepts unauthenticated sessions unless a username and password are set.\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### Selenium\n\n1. Install with `pip install selenium` (Python 3.10 or later) and let Selenium Manager fetch drivers. Do not set driver paths\n2. Use `WebDriverWait` with expected conditions, never fixed sleeps, and do not mix implicit and explicit waits\n3. Set `SE_AVOID_STATS=true` to stop Selenium Manager sending usage statistics\n4. Point coding agents at https://www.selenium.dev/llms.txt. Most Selenium 2 and 3 era examples use removed APIs\n5. Set `--username` and `--password` before exposing a Grid beyond localhost. Check `http://localhost:4444/status` before creating sessions\n\n## Questions\n\n### Which is better for AI agents, Functionize MCP server or Selenium?\n\nSelenium scores 73.6 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in 6 of 7 scored categories. Functionize MCP server leads on security \u0026 auth.\n\n### Can an agent call Functionize MCP server and Selenium without installing anything?\n\nFunctionize MCP server has a hosted endpoint at https://mcp.functionize.com/mcp. No hosted endpoint is listed for Selenium.\n\n### Are Functionize MCP server and Selenium open source?\n\nNo open-source release is listed for Functionize MCP server. Selenium 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-selenium.json, and with the fewest tokens: https://www.anchorterminal.com/compare/functionize-mcp-vs-selenium.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"functionize-mcp\", \"b\": \"selenium\"}`. From a terminal: `anchor compare functionize-mcp selenium`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/functionize-mcp.json and https://www.anchorterminal.com/api/v1/tools/selenium.json\n\n## Other comparisons with Functionize MCP server or Selenium\n\n- [agent-browser vs Functionize MCP server](https://www.anchorterminal.com/compare/agent-browser-vs-functionize-mcp.md)\n- [agent-browser vs Selenium](https://www.anchorterminal.com/compare/agent-browser-vs-selenium.md)\n- [Airtop vs Functionize MCP server](https://www.anchorterminal.com/compare/airtop-vs-functionize-mcp.md)\n- [Airtop vs Selenium](https://www.anchorterminal.com/compare/airtop-vs-selenium.md)\n- [Anchor Browser vs Functionize MCP server](https://www.anchorterminal.com/compare/anchor-browser-vs-functionize-mcp.md)\n- [Anchor Browser vs Selenium](https://www.anchorterminal.com/compare/anchor-browser-vs-selenium.md)\n- [Browser Use vs Functionize MCP server](https://www.anchorterminal.com/compare/browser-use-vs-functionize-mcp.md)\n- [Browser Use vs Selenium](https://www.anchorterminal.com/compare/browser-use-vs-selenium.md)\n- [Browserbase vs Selenium](https://www.anchorterminal.com/compare/browserbase-vs-selenium.md)\n- [Browserless vs Functionize MCP server](https://www.anchorterminal.com/compare/browserless-vs-functionize-mcp.md)\n- [Browserless vs Selenium](https://www.anchorterminal.com/compare/browserless-vs-selenium.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 Selenium](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-selenium.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 Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer-reference-server-archived.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 Selenium](https://www.anchorterminal.com/compare/hyperbrowser-vs-selenium.md)\n- [Notte vs Selenium](https://www.anchorterminal.com/compare/notte-vs-selenium.md)\n- [Playwright MCP vs Selenium](https://www.anchorterminal.com/compare/playwright-mcp-vs-selenium.md)\n- [Pomerado vs Selenium](https://www.anchorterminal.com/compare/pomerado-vs-selenium.md)\n- [Puppeteer (archived MCP reference server) vs Selenium](https://www.anchorterminal.com/compare/puppeteer-reference-server-archived-vs-selenium.md)\n- [Puppeteer vs Selenium](https://www.anchorterminal.com/compare/puppeteer-vs-selenium.md)\n- [Selenium vs Skyvern](https://www.anchorterminal.com/compare/selenium-vs-skyvern.md)\n- [Selenium vs Steel](https://www.anchorterminal.com/compare/selenium-vs-steel.md)\n- [Selenium vs TinyFish](https://www.anchorterminal.com/compare/selenium-vs-tinyfish.md)\n- [Browserbase vs Functionize MCP server](https://www.anchorterminal.com/compare/browserbase-vs-functionize-mcp.md)\n",
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