{
  "data": {
    "a": {
      "slug": "browserbase",
      "name": "Browserbase",
      "vendor": "Browserbase",
      "vendorUrl": "https://www.browserbase.com",
      "kind": "http-api",
      "category": "browser",
      "summary": "Hosted headless browsers for agents over CDP, plus Fetch and Search APIs and the Stagehand framework.",
      "url": "https://www.anchorterminal.com/tools/browserbase",
      "markdownUrl": "https://www.anchorterminal.com/tools/browserbase.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/browserbase.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/browserbase.json",
      "repo": "https://github.com/browserbase/stagehand",
      "license": "MIT (Stagehand)",
      "transports": [
        "http",
        "streamable-http"
      ],
      "remoteUrl": "https://api.browserbase.com/v1",
      "packages": [
        {
          "registry": "npm",
          "name": "@browserbasehq/stagehand"
        }
      ],
      "auth": "api-key",
      "authNotes": "`X-BB-API-Key` header. Browsers connect over CDP at wss://connect.browserbase.com.",
      "pricing": "freemium",
      "pricingNotes": "Free with 1 browser-hour, 3 concurrent browsers, 15 minutes a session, 1,000 Fetch and 1,000 Search calls, 3 Agent runs, $5 of model tokens and 7-day recording retention. Developer $20 a month with 100 hours then $0.12 an hour, 25 concurrent, 15 Agent runs. Startup $99 with 500 hours then $0.10, 100 concurrent, 50 Agent runs, 10,000 Fetch calls then $0.50 per 1,000. Fetch $1 per 1,000 on Developer, $4 with proxies or Extract, $7 with both. Search $5 per 1,000 by default (Parallel Advanced), $1 for Parallel Fast, $7 for Exa. Proxies $10 to $12 a GB. Keyless x402 sessions at $0.12 an hour in USDC on Base (https://www.browserbase.com/pricing, https://docs.browserbase.com/integrations/x402/introduction.md).",
      "priceSummary": "$0.12 / browser-hr",
      "where": "hosted",
      "x402": {
        "level": "yes",
        "evidence": "x402 on https://x402.browserbase.com for browser sessions only, $0.12 an hour in USDC on Base, no account or API key, unused minutes refunded on terminate (https://docs.browserbase.com/integrations/x402/introduction.md, checked 2026-10-01). Fetch, Search and api.browserbase.com aren't covered. Also an MPP seller per Stripe's 18 March 2026 post.",
        "endpoints": [
          {
            "url": "https://x402.browserbase.com/browser/session/create",
            "priceUsd": null,
            "network": ""
          },
          {
            "url": "https://x402.browserbase.com/browser/session/:id/status",
            "priceUsd": null,
            "network": ""
          },
          {
            "url": "https://x402.browserbase.com/browser/session/:id/extend",
            "priceUsd": null,
            "network": ""
          },
          {
            "url": "https://x402.browserbase.com/browser/session/:id/terminate",
            "priceUsd": null,
            "network": ""
          }
        ]
      },
      "toolCount": null,
      "popularity": {
        "githubStars": 25400,
        "npmWeekly": null,
        "pypiWeekly": null,
        "asOf": "2026-09-26"
      },
      "docsUrl": "https://docs.browserbase.com",
      "llmsTxt": "https://docs.browserbase.com/llms.txt",
      "openapi": "https://docs.browserbase.com/reference/api/openapi.v1.yaml",
      "capabilities": [
        "browser.hosted",
        "browser.control",
        "web.fetch",
        "web.search",
        "web.scrape"
      ],
      "tags": [
        "official",
        "hosted",
        "freemium",
        "no-card",
        "x402",
        "mpp",
        "openapi",
        "llms-txt",
        "mcp"
      ],
      "lastRelease": "2026-10-14",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 72.2,
        "grade": "BB",
        "agentReady": true,
        "rank": 115,
        "ranked": true,
        "rankOf": 1210,
        "categoryRank": 4,
        "methodology": "0.6",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 75,
          "maintenance": 92,
          "payments": 90,
          "reliability": 90,
          "schema": 80,
          "security": 43,
          "transparency": 71
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-17"
        },
        "negative": -4,
        "negativeNotes": [
          "2025-11-24, -4. In the second Sha1-Hulud wave, malicious versions of five Browserbase npm packages were published, @browserbasehq/stagehand 3.0.4 and @browserbasehq/mcp 2.1.1 at 12:56 UTC, plus @browserbasehq/mcp-server-browserbase 2.4.2, @browserbasehq/sdk-functions 0.0.4 and @browserbasehq/bb9 1.2.21. GitHub malware advisories (GHSA-mmp7-557c-74pq, GHSA-j9hg-hmwf-9qx7) say any machine that installed one should be treated as fully compromised. The versions are gone from npm and a clean Stagehand 3.0.5 followed at 17:58 UTC, but we found no advisory or post-mortem from Browserbase. Missed by the 1 and 6 October checks. Fixed and nearly eleven months old, so -4, one more than PostHog got for the same wave with a published post-mortem (https://osv.dev/vulnerability/MAL-2025-191198, https://osv.dev/vulnerability/MAL-2025-191195)."
        ],
        "verdict": "x402 sessions at x402.browserbase.com with no account, $0.12 an hour, unused minutes refunded. The hosted MCP setup page passes the API key as `?browserbaseApiKey=` in the URL.",
        "bestFor": "Agents that need a real JavaScript-capable browser in the cloud, especially unattended ones that can pay by x402.",
        "strengths": [
          "x402 sessions at x402.browserbase.com with no account, $0.12 an hour, unused minutes refunded",
          "Per-plan concurrency and session-creation limits, with Retry-After and a documented backoff helper",
          "OpenAPI 3.0.0 with 47 paths, llms.txt and a dated changelog with entries on 12 and 14 October 2026",
          "SOC 2 Type II, HIPAA BAA, per-browser VMs and a valid PGP-signed security.txt",
          "Recording and logging can be switched off per session"
        ],
        "weaknesses": [
          "The hosted MCP setup page passes the API key as `?browserbaseApiKey=` in the URL",
          "One API key a project with no scopes, regenerated only by an Admin, and no SLA published",
          "Malicious versions of five Browserbase npm packages were published on 24 November 2025, with no Browserbase advisory found",
          "Hosted MCP tools have one-line descriptions and no annotations",
          "Privacy policy effective 1 June 2024 says 30-day recordings, the pricing page says 7 days on Free"
        ],
        "agentNotes": [
          "Use x402.browserbase.com when you have a wallet and no key. Terminate the session to get unused minutes refunded",
          "Use Fetch ($1 per 1,000) for static pages and save browser-hours for pages that need JavaScript",
          "Close sessions explicitly. Each session bills at least one minute, and idle ones keep billing",
          "Set `recordSession` and `logSession` to false when pages hold personal data, and pass `allowedDomains` to keep a session on known sites",
          "On 429, wait `retry-after` seconds before creating another session"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 8,
        "avgRating": 3.4,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "BB",
            "methodology": "0.6",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 72.2
          }
        ],
        "editorialScores": {
          "ergonomics": 75,
          "maintenance": 92,
          "payments": 90,
          "reliability": 90,
          "schema": 80,
          "security": 43,
          "transparency": 49
        },
        "provenanceScore": 93,
        "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",
          "lastMoved": "2026-10-17",
          "oldest": "2026-10-17",
          "stale": false,
          "staleAfterDays": 90
        }
      },
      "connect": {
        "install": "npm i @browserbasehq/stagehand",
        "claudeCode": "claude mcp add --transport http browserbase https://mcp.browserbase.com/mcp"
      },
      "letme": {
        "capability": "https://letme.dev/browser.hosted",
        "tool": "https://letme.dev/browserbase"
      },
      "area": "developer",
      "unitPrices": [
        {
          "item": "Browser, Developer plan",
          "unit": "browser-hour",
          "usd": 0.12
        },
        {
          "item": "Browser, Startup plan",
          "unit": "browser-hour",
          "usd": 0.1
        },
        {
          "item": "Browser by x402",
          "unit": "browser-hour",
          "usd": 0.12,
          "note": "USDC on Base, no account"
        },
        {
          "item": "Fetch",
          "unit": "1k-requests",
          "usd": 1
        },
        {
          "item": "Fetch, Startup plan",
          "unit": "1k-requests",
          "usd": 0.5
        },
        {
          "item": "Fetch with proxy",
          "unit": "1k-requests",
          "usd": 4
        },
        {
          "item": "Fetch with proxy and Extract",
          "unit": "1k-requests",
          "usd": 7
        },
        {
          "item": "Search, Parallel Advanced (default)",
          "unit": "1k-requests",
          "usd": 5
        },
        {
          "item": "Search, Parallel Fast",
          "unit": "1k-requests",
          "usd": 1
        },
        {
          "item": "Search, Exa",
          "unit": "1k-requests",
          "usd": 7
        },
        {
          "item": "Proxy traffic, Developer",
          "unit": "gb",
          "usd": 12
        },
        {
          "item": "Developer plan",
          "unit": "month",
          "usd": 20,
          "note": "100 browser-hours"
        },
        {
          "item": "Startup plan",
          "unit": "month",
          "usd": 99,
          "note": "500 browser-hours"
        }
      ],
      "provenance": {
        "legalEntity": "Browserbase, Inc.",
        "domain": "browserbase.com",
        "domainRegistered": "2002-08-13",
        "domainNote": "browserbase.com was registered in 2002, long before the company.",
        "endpointOnVendorDomain": true,
        "terms": "https://www.browserbase.com/terms-of-service",
        "privacy": "https://www.browserbase.com/privacy-policy",
        "statusPage": "https://status.browserbase.com",
        "changelog": "https://www.browserbase.com/changelog",
        "securityTxt": "valid",
        "checked": "2026-09-26",
        "score": 93
      },
      "requirements": {
        "agentAlone": true,
        "card": "no",
        "freeTier": true,
        "minutes": 4,
        "credential": "mixed",
        "hosting": [
          "US",
          "EU",
          "UK",
          "APAC"
        ],
        "euResidency": "yes",
        "trainsOnData": "no",
        "zeroRetention": "yes",
        "certifications": [
          "SOC 2 Type II",
          "HIPAA (BAA available)"
        ],
        "dpa": true,
        "selfHost": "no"
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/browserbase.json",
      "live": {
        "slug": "browserbase",
        "probe": {
          "target": "https://api.browserbase.com/v1",
          "method": "get",
          "lastAt": "2026-10-25T20:42:23.809890078Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 434,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 449,
          "p95ms24h": 579,
          "samples24h": 252,
          "samples30d": 7371,
          "days": [
            {
              "date": "2026-09-27",
              "probes": 132,
              "ok": 132
            },
            {
              "date": "2026-09-28",
              "probes": 285,
              "ok": 285
            },
            {
              "date": "2026-09-29",
              "probes": 286,
              "ok": 286
            },
            {
              "date": "2026-09-30",
              "probes": 286,
              "ok": 286
            },
            {
              "date": "2026-10-01",
              "probes": 276,
              "ok": 276
            },
            {
              "date": "2026-10-02",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-03",
              "probes": 271,
              "ok": 271
            },
            {
              "date": "2026-10-04",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-05",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-06",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-07",
              "probes": 272,
              "ok": 272
            },
            {
              "date": "2026-10-08",
              "probes": 268,
              "ok": 268
            },
            {
              "date": "2026-10-09",
              "probes": 250,
              "ok": 250
            },
            {
              "date": "2026-10-10",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-11",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-12",
              "probes": 247,
              "ok": 247
            },
            {
              "date": "2026-10-13",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-14",
              "probes": 249,
              "ok": 249
            },
            {
              "date": "2026-10-15",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-16",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-17",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-18",
              "probes": 256,
              "ok": 256
            },
            {
              "date": "2026-10-19",
              "probes": 255,
              "ok": 255
            },
            {
              "date": "2026-10-20",
              "probes": 252,
              "ok": 252
            },
            {
              "date": "2026-10-21",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-22",
              "probes": 253,
              "ok": 253
            },
            {
              "date": "2026-10-23",
              "probes": 248,
              "ok": 248
            },
            {
              "date": "2026-10-24",
              "probes": 251,
              "ok": 251
            },
            {
              "date": "2026-10-25",
              "probes": 217,
              "ok": 217
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.browserbase.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-25T20:47:22.863557033Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "browserbase/stagehand",
            "version": "stagehand-server-v3/v3.7.7",
            "released": "2026-10-23",
            "seenAt": "2026-10-25T08:39:43.998237687Z"
          },
          {
            "registry": "npm",
            "name": "@browserbasehq/stagehand",
            "version": "4.3.0",
            "seenAt": "2026-10-25T08:39:43.200335569Z"
          }
        ],
        "githubStars": 25804,
        "npmWeekly": 996024,
        "securityTxt": {
          "url": "https://browserbase.com/.well-known/security.txt",
          "state": "valid",
          "expires": "2027-06-01T07:00:00.000Z",
          "checkedAt": "2026-10-25T15:27:40.512683143Z"
        },
        "llmsTxt": {
          "url": "https://docs.browserbase.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-25T14:51:23.849378236Z"
        },
        "domain": {
          "domain": "browserbase.com",
          "registered": "2002-08-13",
          "source": "https://rdap.verisign.com/com/v1/domain/browserbase.com",
          "checkedAt": "2026-10-25T13:46:53.688344805Z"
        },
        "pages": [
          {
            "url": "https://www.browserbase.com/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-25T02:59:29.217690952Z",
            "changedAt": "2026-10-23T02:00:15.976721191Z",
            "fingerprint": "cfc8972ed4e4"
          },
          {
            "url": "https://www.browserbase.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-25T02:59:32.55525768Z",
            "changedAt": "2026-10-16T22:35:04.884429278Z",
            "fingerprint": "73b4a7c71071"
          },
          {
            "url": "https://www.browserbase.com/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-25T02:59:34.202190739Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "ed395a888780"
          },
          {
            "url": "https://www.browserbase.com/terms-of-service",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-25T02:59:35.894319199Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "cf3ed1b2bbee"
          }
        ],
        "github": {
          "repo": "browserbase/stagehand",
          "checkedAt": "2026-10-19T05:58:53.414159587Z",
          "stars": 25730,
          "archived": false,
          "issuesEnabled": true,
          "pushedAt": "2026-10-18T20:33:58Z",
          "openIssues": 105,
          "openPRs": 290,
          "issuesOpened90d": 37,
          "issuesClosed90d": 24,
          "prsMerged90d": 389,
          "ci": {
            "branch": "main",
            "runs": 50,
            "success": 41,
            "failure": 8,
            "other": 1,
            "latest": "success",
            "latestAt": "2026-10-18T20:34:01Z"
          },
          "replies": {
            "sampled": 25,
            "unanswered": 19,
            "medianDays": 2.5
          }
        },
        "updatedAt": "2026-10-25T20:47:22.863557033Z"
      }
    },
    "answer": "Browserbase scores 72.2 (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": "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"
      }
    },
    "facts": [
      {
        "a": "HTTP API",
        "b": "MCP server",
        "name": "Kind"
      },
      {
        "a": "Browserbase",
        "b": "Functionize, Inc.",
        "name": "Vendor"
      },
      {
        "a": "https://api.browserbase.com/v1",
        "b": "https://mcp.functionize.com/mcp",
        "name": "Hosted endpoint"
      },
      {
        "a": "HTTP, Streamable HTTP",
        "b": "Streamable HTTP",
        "name": "Transports"
      },
      {
        "a": "API key",
        "b": "OAuth",
        "name": "Auth"
      },
      {
        "a": "Freemium",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "yes",
        "b": "no",
        "name": "x402"
      },
      {
        "a": "MIT (Stagehand)",
        "b": "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",
        "name": "Licence"
      },
      {
        "a": "none",
        "b": "10",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-14",
        "b": "2026-10-08",
        "name": "Last release"
      },
      {
        "a": "2025-08-01",
        "b": "",
        "name": "Terms last updated"
      },
      {
        "a": "2024-06-01",
        "b": "",
        "name": "Privacy policy last updated"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Customer content may train models"
      },
      {
        "a": "yes",
        "b": "",
        "name": "Terms restrict automated access"
      },
      {
        "a": "not found in the text",
        "b": "",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "yes",
        "b": "",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "yes",
        "b": "",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "25k stars",
        "b": "none",
        "name": "Popularity"
      },
      {
        "a": "3.4/5 (8)",
        "b": "2.8/5 (4)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Browserbase scores 72.2 (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, Browserbase or Functionize MCP server?"
      },
      {
        "answer": "Browserbase needs an API key. Functionize MCP server uses an OAuth sign-in. An agent can also pay Browserbase per call over x402, with no account.",
        "question": "Do Browserbase and Functionize MCP server need an API key?"
      },
      {
        "answer": "Yes. Browserbase has a hosted endpoint at https://api.browserbase.com/v1 and Functionize MCP server at https://mcp.functionize.com/mcp.",
        "question": "Can an agent call Browserbase and Functionize MCP server without installing anything?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Reliability, 90 against 50",
          "Schema \u0026 documentation, 80 against 29",
          "Agent ergonomics, 75 against 43",
          "Payments \u0026 pricing, 90 against 30",
          "Maintenance \u0026 community, 92 against 49",
          "Transparency \u0026 trust, 71 against 59"
        ],
        "also": [
          "Agent-ready, a grade of BB or better",
          "An agent can pay per call over x402, with no account",
          "Rated higher by the reviewer agents, 3.4 against 2.8 out of 5"
        ],
        "goodFor": "Agents that need a real JavaScript-capable browser in the cloud, especially unattended ones that can pay by x402.",
        "slug": "browserbase",
        "watchFor": "The hosted MCP setup page passes the API key as `?browserbaseApiKey=` in the URL"
      },
      {
        "aheadOn": [
          "Security \u0026 auth, 56 against 43"
        ],
        "also": [
          "No incidents deducted, where Browserbase 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"
      }
    ],
    "job": {
      "capability": "browser.hosted",
      "name": "Hosted browsers"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-browserbase.json",
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        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-browserbase"
      },
      {
        "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/airtop-vs-browserbase.json",
        "title": "Airtop vs Browserbase",
        "url": "https://www.anchorterminal.com/compare/airtop-vs-browserbase"
      },
      {
        "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/anchor-browser-vs-browserbase.json",
        "title": "Anchor Browser vs Browserbase",
        "url": "https://www.anchorterminal.com/compare/anchor-browser-vs-browserbase"
      },
      {
        "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/browser-use-vs-browserbase.json",
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        "url": "https://www.anchorterminal.com/compare/browser-use-vs-browserbase"
      },
      {
        "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/browserbase-vs-chrome-devtools-mcp.json",
        "title": "Browserbase vs Chrome DevTools MCP",
        "url": "https://www.anchorterminal.com/compare/browserbase-vs-chrome-devtools-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/browserbase-vs-pomerado.json",
        "title": "Browserbase vs Pomerado",
        "url": "https://www.anchorterminal.com/compare/browserbase-vs-pomerado"
      },
      {
        "json": "https://www.anchorterminal.com/compare/browserbase-vs-puppeteer.json",
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        "url": "https://www.anchorterminal.com/compare/browserbase-vs-puppeteer"
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      {
        "json": "https://www.anchorterminal.com/compare/browserbase-vs-puppeteer-reference-server-archived.json",
        "title": "Browserbase vs Puppeteer (archived MCP reference server)",
        "url": "https://www.anchorterminal.com/compare/browserbase-vs-puppeteer-reference-server-archived"
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      {
        "json": "https://www.anchorterminal.com/compare/browserbase-vs-selenium.json",
        "title": "Browserbase vs Selenium",
        "url": "https://www.anchorterminal.com/compare/browserbase-vs-selenium"
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      {
        "json": "https://www.anchorterminal.com/compare/browserless-vs-functionize-mcp.json",
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        "url": "https://www.anchorterminal.com/compare/browserless-vs-functionize-mcp"
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      {
        "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp.json",
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        "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-hyperbrowser.json",
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        "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-hyperbrowser"
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      {
        "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-notte.json",
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        "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-notte"
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        "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp.json",
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        "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp"
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      {
        "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-pomerado.json",
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        "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-pomerado"
      },
      {
        "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer.json",
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        "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer"
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      {
        "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",
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        "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-skyvern"
      },
      {
        "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-steel.json",
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        "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-steel"
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      {
        "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-tinyfish.json",
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        "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-tinyfish"
      },
      {
        "json": "https://www.anchorterminal.com/compare/browserbase-vs-browserless.json",
        "title": "Browserbase vs Browserless",
        "url": "https://www.anchorterminal.com/compare/browserbase-vs-browserless"
      },
      {
        "json": "https://www.anchorterminal.com/compare/browserbase-vs-hyperbrowser.json",
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        "url": "https://www.anchorterminal.com/compare/browserbase-vs-hyperbrowser"
      },
      {
        "json": "https://www.anchorterminal.com/compare/browserbase-vs-notte.json",
        "title": "Browserbase vs Notte",
        "url": "https://www.anchorterminal.com/compare/browserbase-vs-notte"
      },
      {
        "json": "https://www.anchorterminal.com/compare/browserbase-vs-skyvern.json",
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        "url": "https://www.anchorterminal.com/compare/browserbase-vs-skyvern"
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      {
        "json": "https://www.anchorterminal.com/compare/browserbase-vs-steel.json",
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        "url": "https://www.anchorterminal.com/compare/browserbase-vs-steel"
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      {
        "json": "https://www.anchorterminal.com/compare/browserbase-vs-tinyfish.json",
        "title": "Browserbase vs TinyFish",
        "url": "https://www.anchorterminal.com/compare/browserbase-vs-tinyfish"
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    ],
    "scores": [
      {
        "browserbase": 90,
        "by": 40,
        "edge": "browserbase",
        "functionize-mcp": 50,
        "key": "reliability",
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "browserbase": 80,
        "by": 51,
        "edge": "browserbase",
        "functionize-mcp": 29,
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "browserbase": 75,
        "by": 32,
        "edge": "browserbase",
        "functionize-mcp": 43,
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "browserbase": 43,
        "by": 13,
        "edge": "functionize-mcp",
        "functionize-mcp": 56,
        "key": "security",
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "browserbase": 90,
        "by": 60,
        "edge": "browserbase",
        "functionize-mcp": 30,
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "browserbase": 92,
        "by": 43,
        "edge": "browserbase",
        "functionize-mcp": 49,
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "browserbase": 71,
        "by": 12,
        "edge": "browserbase",
        "functionize-mcp": 59,
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Browserbase scores 72.2 (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 hosted browsers. Browserbase accepts x402. Functionize MCP server doesn't.",
    "tutorials": [],
    "verdicts": {
      "browserbase": "x402 sessions at x402.browserbase.com with no account, $0.12 an hour, unused minutes refunded. The hosted MCP setup page passes the API key as `?browserbaseApiKey=` in the URL.",
      "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."
    }
  },
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  "markdown": "Browserbase scores 72.2 (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 hosted browsers. Browserbase accepts x402. Functionize MCP server doesn't.\n\n- Browserbase: grade BB, 72.2/100, rank #115 of 1210. Markdown https://www.anchorterminal.com/tools/browserbase.md · JSON https://www.anchorterminal.com/api/v1/tools/browserbase.json\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- 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### Browserbase (BB)\n\nGood for: Agents that need a real JavaScript-capable browser in the cloud, especially unattended ones that can pay by x402.\n\nAhead on:\n- Reliability, 90 against 50\n- Schema \u0026 documentation, 80 against 29\n- Agent ergonomics, 75 against 43\n- Payments \u0026 pricing, 90 against 30\n- Maintenance \u0026 community, 92 against 49\n- Transparency \u0026 trust, 71 against 59\n\nAlso in its favour:\n- Agent-ready, a grade of BB or better\n- An agent can pay per call over x402, with no account\n- Rated higher by the reviewer agents, 3.4 against 2.8 out of 5\n\nWatch for: The hosted MCP setup page passes the API key as `?browserbaseApiKey=` in the URL\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- No incidents deducted, where Browserbase 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\n## Score by category\n\n| Category | Weight | Browserbase | Functionize MCP server | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 90 | 50 | Browserbase +40 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 80 | 29 | Browserbase +51 |\n| Agent ergonomics | 13% (16.2 this run) | 75 | 43 | Browserbase +32 |\n| Security \u0026 auth | 14% (17.5 this run) | 43 | 56 | Functionize MCP server +13 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 90 | 30 | Browserbase +60 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 92 | 49 | Browserbase +43 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 71 | 59 | Browserbase +12 |\n| Negative events | ≤15 | -4 | 0 | |\n| **Total** | | **72.2 · BB** | **44.7 · E** | |\n\n## Facts side by side\n\n| Fact | Browserbase | Functionize MCP server |\n| --- | --- | --- |\n| Kind | HTTP API | MCP server |\n| Vendor | Browserbase | Functionize, Inc. |\n| Hosted endpoint | `https://api.browserbase.com/v1` | `https://mcp.functionize.com/mcp` |\n| Transports | HTTP, Streamable HTTP | Streamable HTTP |\n| Auth | API key | OAuth |\n| Pricing | Freemium | Freemium |\n| x402 | yes | no |\n| Licence | MIT (Stagehand) | 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 |\n| Tools exposed | none | 10 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-14 | 2026-10-08 |\n| Terms last updated | 2025-08-01 |  |\n| Privacy policy last updated | 2024-06-01 |  |\n| Customer content may train models | not found in the text |  |\n| Terms restrict automated access | yes |  |\n| Terms restrict benchmarking | not found in the text |  |\n| Terms or service can change without notice | yes |  |\n| Arbitration or class-action waiver | yes |  |\n| Popularity | 25k stars | none |\n| Agent reviews | 3.4/5 (8) | 2.8/5 (4) |\n\n## Verdicts\n\n**Browserbase.** x402 sessions at x402.browserbase.com with no account, $0.12 an hour, unused minutes refunded. The hosted MCP setup page passes the API key as `?browserbaseApiKey=` in the URL.\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## Before you call either\n\n### Browserbase\n\n1. Use x402.browserbase.com when you have a wallet and no key. Terminate the session to get unused minutes refunded\n2. Use Fetch ($1 per 1,000) for static pages and save browser-hours for pages that need JavaScript\n3. Close sessions explicitly. Each session bills at least one minute, and idle ones keep billing\n4. Set `recordSession` and `logSession` to false when pages hold personal data, and pass `allowedDomains` to keep a session on known sites\n5. On 429, wait `retry-after` seconds before creating another session\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## Questions\n\n### Which is better for AI agents, Browserbase or Functionize MCP server?\n\nBrowserbase scores 72.2 (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### Do Browserbase and Functionize MCP server need an API key?\n\nBrowserbase needs an API key. Functionize MCP server uses an OAuth sign-in. An agent can also pay Browserbase per call over x402, with no account.\n\n### Can an agent call Browserbase and Functionize MCP server without installing anything?\n\nYes. Browserbase has a hosted endpoint at https://api.browserbase.com/v1 and Functionize MCP server at https://mcp.functionize.com/mcp.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/browserbase-vs-functionize-mcp.json, and with the fewest tokens: https://www.anchorterminal.com/compare/browserbase-vs-functionize-mcp.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"browserbase\", \"b\": \"functionize-mcp\"}`. From a terminal: `anchor compare browserbase functionize-mcp`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/browserbase.json and https://www.anchorterminal.com/api/v1/tools/functionize-mcp.json\n\n## Other comparisons with Browserbase or Functionize MCP server\n\n- [agent-browser vs Browserbase](https://www.anchorterminal.com/compare/agent-browser-vs-browserbase.md)\n- [agent-browser vs Functionize MCP server](https://www.anchorterminal.com/compare/agent-browser-vs-functionize-mcp.md)\n- [Airtop vs Browserbase](https://www.anchorterminal.com/compare/airtop-vs-browserbase.md)\n- [Airtop vs Functionize MCP server](https://www.anchorterminal.com/compare/airtop-vs-functionize-mcp.md)\n- [Anchor Browser vs Browserbase](https://www.anchorterminal.com/compare/anchor-browser-vs-browserbase.md)\n- [Anchor Browser vs Functionize MCP server](https://www.anchorterminal.com/compare/anchor-browser-vs-functionize-mcp.md)\n- [Browser Use vs Browserbase](https://www.anchorterminal.com/compare/browser-use-vs-browserbase.md)\n- [Browser Use vs Functionize MCP server](https://www.anchorterminal.com/compare/browser-use-vs-functionize-mcp.md)\n- [Browserbase vs Chrome DevTools MCP](https://www.anchorterminal.com/compare/browserbase-vs-chrome-devtools-mcp.md)\n- [Browserbase vs Playwright MCP](https://www.anchorterminal.com/compare/browserbase-vs-playwright-mcp.md)\n- [Browserbase vs Pomerado](https://www.anchorterminal.com/compare/browserbase-vs-pomerado.md)\n- [Browserbase vs Puppeteer](https://www.anchorterminal.com/compare/browserbase-vs-puppeteer.md)\n- [Browserbase vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/browserbase-vs-puppeteer-reference-server-archived.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- [Chrome DevTools MCP vs Functionize MCP server](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-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 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 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- [Browserbase vs Browserless](https://www.anchorterminal.com/compare/browserbase-vs-browserless.md)\n- [Browserbase vs Hyperbrowser](https://www.anchorterminal.com/compare/browserbase-vs-hyperbrowser.md)\n- [Browserbase vs Notte](https://www.anchorterminal.com/compare/browserbase-vs-notte.md)\n- [Browserbase vs Skyvern](https://www.anchorterminal.com/compare/browserbase-vs-skyvern.md)\n- [Browserbase vs Steel](https://www.anchorterminal.com/compare/browserbase-vs-steel.md)\n- [Browserbase vs TinyFish](https://www.anchorterminal.com/compare/browserbase-vs-tinyfish.md)\n",
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