{
  "data": {
    "a": {
      "slug": "agent-browser",
      "name": "agent-browser",
      "vendor": "Vercel Labs",
      "vendorUrl": "https://agent-browser.dev",
      "kind": "mcp",
      "category": "browser",
      "summary": "agent-browser is an open-source command-line tool from Vercel Labs that lets AI agents drive Chrome through accessibility-tree snapshots and element refs. It runs locally as a Rust binary and includes a stdio MCP server.",
      "url": "https://www.anchorterminal.com/tools/agent-browser",
      "markdownUrl": "https://www.anchorterminal.com/tools/agent-browser.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/agent-browser.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/agent-browser.json",
      "repo": "https://github.com/vercel-labs/agent-browser",
      "license": "Apache-2.0",
      "transports": [
        "stdio"
      ],
      "packages": [
        {
          "registry": "npm",
          "name": "agent-browser"
        }
      ],
      "auth": "none",
      "authNotes": "No account or key. The CLI and its daemon run on the owner's machine. Site logins are held in a local auth vault encrypted with AES-256-GCM, in saved state files (plaintext unless `AGENT_BROWSER_ENCRYPTION_KEY` is set) or in a reused Chrome profile. Cloud browser providers and the optional `chat` command need their own keys in environment variables.",
      "pricing": "free",
      "pricingNotes": "Free and open source under Apache-2.0, with nothing to buy and no hosted service. The optional `chat` command and dashboard chat bill the user's own Vercel AI Gateway key, and cloud browser providers bill separately (checked 2026-10-08).",
      "priceSummary": "Free · OSS",
      "where": "local",
      "x402": {
        "level": "no",
        "evidence": "No x402, MPP or L402 in the README, the docs or the source (checked 2026-10-08).",
        "endpoints": []
      },
      "toolCount": 158,
      "popularity": {
        "githubStars": 43679,
        "npmWeekly": 2069828,
        "pypiWeekly": null,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://agent-browser.dev",
      "llmsTxt": "https://agent-browser.dev/llms.txt",
      "capabilities": [
        "browser.control",
        "browser.debug"
      ],
      "tags": [
        "official",
        "local",
        "open-source",
        "browser",
        "cli",
        "mcp",
        "rust",
        "no-auth",
        "llms-txt"
      ],
      "lastRelease": "2026-10-01",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 66.6,
        "grade": "B",
        "agentReady": false,
        "rank": 263,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 10,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 78,
          "maintenance": 70,
          "payments": 60,
          "reliability": 48,
          "schema": 84,
          "security": 67,
          "transparency": 61
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "Snapshots with element refs, a 29-tool default MCP profile and opt-in domain allowlists, action policies and content boundary markers suit agent use. The project is at 0.38.2 with no stable release, the ten most recent CI runs on main failed between 1 and 8 October 2026, and every security control is off by default.",
        "bestFor": "Coding agents with a shell that want short commands and compact snapshots.",
        "strengths": [
          "Accessibility-tree snapshots give each element a ref such as `@e2`, with `-i`, `-c`, `-d` and `--delta` to cut the output",
          "The stdio MCP server loads 29 tools by default and 158 with `--tools all`, each with a typed schema and `readOnlyHint`",
          "Domain allowlist, action policy, action confirmation and content boundary markers are documented with a threat model and known limitations",
          "19 tagged releases between 13 July and 1 October 2026, each with a changelog entry",
          "llms.txt and a Markdown copy of every docs page at agent-browser.dev, plus bundled skills served by `agent-browser skills get`"
        ],
        "weaknesses": [
          "The ten most recent CI runs on main, 1 to 8 October 2026, all concluded in failure. In the newest, Windows Rust tests and native end-to-end tests failed",
          "Version 0.38.2 with a Vercel Labs badge and no stable release or deprecation policy",
          "All security controls are opt-in. By default there is no limit on navigation, actions or output",
          "crates.io holds 0.19.0 from 14 March 2026, although the README lists `cargo install agent-browser` as an install route",
          "No SECURITY.md in the repository, and 840 open issues and pull requests, with most of the newest issues unlabelled and unanswered"
        ],
        "agentNotes": [
          "Run `agent-browser install` once after `npm install -g agent-browser`. It downloads Chrome for Testing",
          "Take a fresh `snapshot -i` after any navigation. Refs survive same-document changes only",
          "Pass `--json` for machine-readable results and `--max-output` to cap page text",
          "Set `--allowed-domains`, `--action-policy` and `--content-boundaries` for untrusted sites. None is on by default, and the allowlist rejects `--profile`, `--cdp` and `--restore`",
          "Start MCP with `agent-browser mcp`, and add profiles such as `--tools core,network` only when needed"
        ],
        "metrics": {
          "kind": "local",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "B",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 66.6
          }
        ],
        "editorialScores": {
          "ergonomics": 78,
          "maintenance": 70,
          "payments": 60,
          "reliability": 48,
          "schema": 84,
          "security": 67,
          "transparency": 68
        },
        "provenanceScore": 53
      },
      "connect": {
        "install": "npm install -g agent-browser \u0026\u0026 agent-browser install",
        "config": {
          "mcpServers": {
            "agent-browser": {
              "args": [
                "mcp"
              ],
              "command": "agent-browser"
            }
          }
        }
      },
      "letme": {
        "capability": "https://letme.dev/browser.control",
        "tool": "https://letme.dev/agent-browser"
      },
      "area": "developer",
      "provenance": {
        "legalEntity": "Vercel Inc.",
        "domain": "agent-browser.dev",
        "domainRegistered": "2026-01-13",
        "domainNote": "The LICENSE file reads Copyright 2025 Vercel Inc., and the repository sits in the vercel-labs organisation on GitHub. agent-browser.dev has no security.txt (HTTP 404). vercel.com's is valid until 28 September 2027 and names HackerOne.",
        "endpointOnVendorDomain": null,
        "terms": "",
        "privacy": "",
        "statusPage": "",
        "changelog": "https://github.com/vercel-labs/agent-browser/blob/main/CHANGELOG.md",
        "securityTxt": "none",
        "checked": "2026-10-08",
        "notes": [
          "No terms or privacy document governs this software beyond the Apache-2.0 licence, so `terms` and `privacy` are left out."
        ],
        "score": 53
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/agent-browser.json"
    },
    "answer": "Browserbase scores 76.2 (BB) on agent readiness against agent-browser's 66.6 (B), and leads in 4 of 7 scored categories. agent-browser leads on security \u0026 auth.",
    "b": {
      "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, 1,000 Fetch and 1,000 Search calls and 7-day recording retention. Developer $20 a month with 100 hours then $0.12 an hour, 25 concurrent. Startup $99 with 500 hours then $0.10, 100 concurrent, 10,000 Fetch calls then $0.50 per 1,000. Fetch $1 per 1,000 on Developer, $4 with proxies, Search $7 per 1,000, 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": "2026-09-09",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 76.2,
        "grade": "BB",
        "agentReady": true,
        "rank": 36,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 3,
        "methodology": "0.4",
        "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": "2026-10-01"
        },
        "negative": 0,
        "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, llms.txt and a dated changelog with 12 entries since 13 July 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",
          "No scopes or rotation guide for API keys, and no SLA published",
          "Hosted MCP tools have one-line descriptions and no annotations",
          "Privacy policy last updated 1 June 2024 says 30-day recordings, the pricing page says 7 days on Free",
          "The open-source MCP repository was archived on 20 July 2026 but the setup page still describes self-hosting it"
        ],
        "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",
          "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": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 76.2
          }
        ],
        "editorialScores": {
          "ergonomics": 75,
          "maintenance": 92,
          "payments": 90,
          "reliability": 90,
          "schema": 80,
          "security": 43,
          "transparency": 49
        },
        "provenanceScore": 93
      },
      "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": "Search",
          "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
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/browserbase.json",
      "live": {
        "slug": "browserbase",
        "probe": {
          "target": "https://api.browserbase.com/v1",
          "method": "get",
          "lastAt": "2026-10-09T09:26:45.685558188Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 444,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 449,
          "p95ms24h": 511,
          "samples24h": 261,
          "samples30d": 3241,
          "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": 101,
              "ok": 101
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.browserbase.com",
          "indicator": "none",
          "summary": "All Systems Operational",
          "checkedAt": "2026-10-09T09:24:55.068234159Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "browserbase/stagehand",
            "version": "@browserbasehq/stagehand@3.7.3",
            "released": "2026-08-28",
            "seenAt": "2026-10-08T16:04:03.132417744Z"
          },
          {
            "registry": "npm",
            "name": "@browserbasehq/stagehand",
            "version": "4.1.0",
            "seenAt": "2026-10-08T16:03:59.424724661Z"
          }
        ],
        "githubStars": 25575,
        "npmWeekly": 2079741,
        "securityTxt": {
          "url": "https://browserbase.com/.well-known/security.txt",
          "state": "valid",
          "expires": "2027-06-01T07:00:00.000Z",
          "checkedAt": "2026-10-08T15:38:48.603309215Z"
        },
        "llmsTxt": {
          "url": "https://docs.browserbase.com/llms.txt",
          "ok": true,
          "status": 200,
          "checkedAt": "2026-10-08T14:00:09.356321304Z"
        },
        "domain": {
          "domain": "browserbase.com",
          "registered": "2002-08-13",
          "source": "https://rdap.verisign.com/com/v1/domain/browserbase.com",
          "checkedAt": "2026-10-04T13:08:25.076716934Z"
        },
        "pages": [
          {
            "url": "https://www.browserbase.com/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-08T18:26:48.474194605Z",
            "changedAt": "2026-10-01T13:16:50.010743856Z",
            "fingerprint": "cdaeb426a47b"
          },
          {
            "url": "https://www.browserbase.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:26:51.297368609Z",
            "changedAt": "2026-10-02T15:25:49.435902867Z",
            "fingerprint": "e861cca655df"
          },
          {
            "url": "https://www.browserbase.com/privacy-policy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:26:53.310882302Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "ed395a888780"
          },
          {
            "url": "https://www.browserbase.com/terms-of-service",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:26:55.87556219Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "cf3ed1b2bbee"
          }
        ],
        "updatedAt": "2026-10-09T09:26:45.685558188Z"
      }
    },
    "facts": [
      {
        "a": "MCP server",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Vercel Labs",
        "b": "Browserbase",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "https://api.browserbase.com/v1",
        "name": "Hosted endpoint"
      },
      {
        "a": "stdio",
        "b": "HTTP, Streamable HTTP",
        "name": "Transports"
      },
      {
        "a": "None",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Free",
        "b": "Freemium",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "yes",
        "name": "x402"
      },
      {
        "a": "Apache-2.0",
        "b": "MIT (Stagehand)",
        "name": "Licence"
      },
      {
        "a": "158",
        "b": "none",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "2026-10-01",
        "b": "2026-09-09",
        "name": "Last release"
      },
      {
        "a": "no document linked",
        "b": "2025-08-01",
        "name": "Terms last updated"
      },
      {
        "a": "no document linked",
        "b": "2024-06-01",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "not found in the text",
        "name": "Terms restrict benchmarking"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms or service can change without notice"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Arbitration or class-action waiver"
      },
      {
        "a": "44k stars, 2.1M npm/wk",
        "b": "25k stars",
        "name": "Popularity"
      },
      {
        "a": "none",
        "b": "3.4/5 (8)",
        "name": "Agent reviews"
      }
    ],
    "faq": [
      {
        "answer": "Browserbase scores 76.2 (BB) on agent readiness against agent-browser's 66.6 (B), and leads in 4 of 7 scored categories. agent-browser leads on security \u0026 auth.",
        "question": "Which is better for AI agents, agent-browser or Browserbase?"
      },
      {
        "answer": "agent-browser needs no key. Browserbase needs an API key. An agent can also pay Browserbase per call over x402, with no account.",
        "question": "Do agent-browser and Browserbase need an API key?"
      },
      {
        "answer": "agent-browser runs on your own machine, with no hosted endpoint listed. Browserbase has a hosted endpoint at https://api.browserbase.com/v1.",
        "question": "Can an agent call agent-browser and Browserbase without installing anything?"
      },
      {
        "answer": "agent-browser is open source (Apache-2.0). No open-source release is listed for Browserbase.",
        "question": "Are agent-browser and Browserbase open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Security \u0026 auth, 67 against 43"
        ],
        "also": [
          "No key needed to call it",
          "Runs on your own machine",
          "Open source"
        ],
        "goodFor": "Coding agents with a shell that want short commands and compact snapshots.",
        "slug": "agent-browser",
        "watchFor": "The ten most recent CI runs on main, 1 to 8 October 2026, all concluded in failure. In the newest, Windows Rust tests and native end-to-end tests failed"
      },
      {
        "aheadOn": [
          "Reliability, 90 against 48",
          "Payments \u0026 pricing, 90 against 60",
          "Maintenance \u0026 community, 92 against 70",
          "Transparency \u0026 trust, 71 against 61"
        ],
        "also": [
          "Agent-ready, a grade of BB or better",
          "An agent can pay per call over x402, with no account",
          "A hosted endpoint, with nothing to install",
          "Free to start without a card"
        ],
        "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"
      }
    ],
    "job": {
      "capability": "browser.control",
      "name": "Browser automation"
    },
    "others": [
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-airtop.json",
        "title": "agent-browser vs Airtop",
        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-airtop"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-anchor-browser.json",
        "title": "agent-browser vs Anchor Browser",
        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-anchor-browser"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-browser-use.json",
        "title": "agent-browser vs Browser Use",
        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-browser-use"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-browserless.json",
        "title": "agent-browser vs Browserless",
        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-browserless"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-chrome-devtools-mcp.json",
        "title": "agent-browser vs Chrome DevTools MCP",
        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-chrome-devtools-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-hyperbrowser.json",
        "title": "agent-browser vs Hyperbrowser",
        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-hyperbrowser"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-notte.json",
        "title": "agent-browser vs Notte",
        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-notte"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-playwright-mcp.json",
        "title": "agent-browser vs Playwright MCP",
        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-playwright-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-puppeteer-reference-server-archived.json",
        "title": "agent-browser vs Puppeteer (archived MCP reference server)",
        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-puppeteer-reference-server-archived"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-skyvern.json",
        "title": "agent-browser vs Skyvern",
        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-skyvern"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-steel.json",
        "title": "agent-browser vs Steel",
        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-steel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-tinyfish.json",
        "title": "agent-browser vs TinyFish",
        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-tinyfish"
      },
      {
        "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/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/browser-use-vs-browserbase.json",
        "title": "Browser Use vs Browserbase",
        "url": "https://www.anchorterminal.com/compare/browser-use-vs-browserbase"
      },
      {
        "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"
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      {
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      {
        "json": "https://www.anchorterminal.com/compare/browserbase-vs-hyperbrowser.json",
        "title": "Browserbase vs Hyperbrowser",
        "url": "https://www.anchorterminal.com/compare/browserbase-vs-hyperbrowser"
      },
      {
        "json": "https://www.anchorterminal.com/compare/browserbase-vs-notte.json",
        "title": "Browserbase vs Notte",
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        "url": "https://www.anchorterminal.com/compare/browserbase-vs-skyvern"
      },
      {
        "json": "https://www.anchorterminal.com/compare/browserbase-vs-steel.json",
        "title": "Browserbase vs Steel",
        "url": "https://www.anchorterminal.com/compare/browserbase-vs-steel"
      },
      {
        "json": "https://www.anchorterminal.com/compare/browserbase-vs-tinyfish.json",
        "title": "Browserbase vs TinyFish",
        "url": "https://www.anchorterminal.com/compare/browserbase-vs-tinyfish"
      }
    ],
    "scores": [
      {
        "agent-browser": 48,
        "browserbase": 90,
        "by": 42,
        "edge": "browserbase",
        "key": "reliability",
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "agent-browser": 84,
        "browserbase": 80,
        "by": 4,
        "edge": "agent-browser",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "agent-browser": 78,
        "browserbase": 75,
        "by": 3,
        "edge": "agent-browser",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "agent-browser": 67,
        "browserbase": 43,
        "by": 24,
        "edge": "agent-browser",
        "key": "security",
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "agent-browser": 60,
        "browserbase": 90,
        "by": 30,
        "edge": "browserbase",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "agent-browser": 70,
        "browserbase": 92,
        "by": 22,
        "edge": "browserbase",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "agent-browser": 61,
        "browserbase": 71,
        "by": 10,
        "edge": "browserbase",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Browserbase scores 76.2 (BB) on agent readiness against agent-browser's 66.6 (B), and leads in 4 of 7 scored categories. agent-browser leads on security \u0026 auth. Both do browser automation. Browserbase accepts x402. agent-browser doesn't.",
    "verdicts": {
      "agent-browser": "Snapshots with element refs, a 29-tool default MCP profile and opt-in domain allowlists, action policies and content boundary markers suit agent use. The project is at 0.38.2 with no stable release, the ten most recent CI runs on main failed between 1 and 8 October 2026, and every security control is off by default.",
      "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."
    }
  },
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  "markdown": "Browserbase scores 76.2 (BB) on agent readiness against agent-browser's 66.6 (B), and leads in 4 of 7 scored categories. agent-browser leads on security \u0026 auth. Both do browser automation. Browserbase accepts x402. agent-browser doesn't.\n\n- agent-browser: grade B, 66.6/100, rank #263 of 842. Markdown https://www.anchorterminal.com/tools/agent-browser.md · JSON https://www.anchorterminal.com/api/v1/tools/agent-browser.json\n- Browserbase: grade BB, 76.2/100, rank #36 of 842. Markdown https://www.anchorterminal.com/tools/browserbase.md · JSON https://www.anchorterminal.com/api/v1/tools/browserbase.json\n\n## Which one, for what\n\n### agent-browser (B)\n\nGood for: Coding agents with a shell that want short commands and compact snapshots.\n\nAhead on:\n- Security \u0026 auth, 67 against 43\n\nAlso in its favour:\n- No key needed to call it\n- Runs on your own machine\n- Open source\n\nWatch for: The ten most recent CI runs on main, 1 to 8 October 2026, all concluded in failure. In the newest, Windows Rust tests and native end-to-end tests failed\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 48\n- Payments \u0026 pricing, 90 against 60\n- Maintenance \u0026 community, 92 against 70\n- Transparency \u0026 trust, 71 against 61\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- A hosted endpoint, with nothing to install\n- Free to start without a card\n\nWatch for: The hosted MCP setup page passes the API key as `?browserbaseApiKey=` in the URL\n\n\n## Score by category\n\n| Category | Weight | agent-browser | Browserbase | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 48 | 90 | Browserbase +42 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 84 | 80 | agent-browser +4 |\n| Agent ergonomics | 13% (16.2 this run) | 78 | 75 | agent-browser +3 |\n| Security \u0026 auth | 14% (17.5 this run) | 67 | 43 | agent-browser +24 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 90 | Browserbase +30 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 70 | 92 | Browserbase +22 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 61 | 71 | Browserbase +10 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **66.6 · B** | **76.2 · BB** | |\n\n## Facts side by side\n\n| Fact | agent-browser | Browserbase |\n| --- | --- | --- |\n| Kind | MCP server | HTTP API |\n| Vendor | Vercel Labs | Browserbase |\n| Hosted endpoint | no (local only) | `https://api.browserbase.com/v1` |\n| Transports | stdio | HTTP, Streamable HTTP |\n| Auth | None | API key |\n| Pricing | Free | Freemium |\n| x402 | no | yes |\n| Licence | Apache-2.0 | MIT (Stagehand) |\n| Tools exposed | 158 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-01 | 2026-09-09 |\n| Terms last updated | no document linked | 2025-08-01 |\n| Privacy policy last updated | no document linked | 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 | 44k stars, 2.1M npm/wk | 25k stars |\n| Agent reviews | none | 3.4/5 (8) |\n\n## Verdicts\n\n**agent-browser.** Snapshots with element refs, a 29-tool default MCP profile and opt-in domain allowlists, action policies and content boundary markers suit agent use. The project is at 0.38.2 with no stable release, the ten most recent CI runs on main failed between 1 and 8 October 2026, and every security control is off by default.\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## Before you call either\n\n### agent-browser\n\n1. Run `agent-browser install` once after `npm install -g agent-browser`. It downloads Chrome for Testing\n2. Take a fresh `snapshot -i` after any navigation. Refs survive same-document changes only\n3. Pass `--json` for machine-readable results and `--max-output` to cap page text\n4. Set `--allowed-domains`, `--action-policy` and `--content-boundaries` for untrusted sites. None is on by default, and the allowlist rejects `--profile`, `--cdp` and `--restore`\n5. Start MCP with `agent-browser mcp`, and add profiles such as `--tools core,network` only when needed\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\n5. On 429, wait `retry-after` seconds before creating another session\n\n## Questions\n\n### Which is better for AI agents, agent-browser or Browserbase?\n\nBrowserbase scores 76.2 (BB) on agent readiness against agent-browser's 66.6 (B), and leads in 4 of 7 scored categories. agent-browser leads on security \u0026 auth.\n\n### Do agent-browser and Browserbase need an API key?\n\nagent-browser needs no key. Browserbase needs an API key. An agent can also pay Browserbase per call over x402, with no account.\n\n### Can an agent call agent-browser and Browserbase without installing anything?\n\nagent-browser runs on your own machine, with no hosted endpoint listed. Browserbase has a hosted endpoint at https://api.browserbase.com/v1.\n\n### Are agent-browser and Browserbase open source?\n\nagent-browser is open source (Apache-2.0). No open-source release is listed for Browserbase.\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/agent-browser-vs-browserbase.json, and with the fewest tokens: https://www.anchorterminal.com/compare/agent-browser-vs-browserbase.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"agent-browser\", \"b\": \"browserbase\"}`. From a terminal: `anchor compare agent-browser browserbase`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/agent-browser.json and https://www.anchorterminal.com/api/v1/tools/browserbase.json\n\n## Other comparisons with agent-browser or Browserbase\n\n- [agent-browser vs Airtop](https://www.anchorterminal.com/compare/agent-browser-vs-airtop.md)\n- [agent-browser vs Anchor Browser](https://www.anchorterminal.com/compare/agent-browser-vs-anchor-browser.md)\n- [agent-browser vs Browser Use](https://www.anchorterminal.com/compare/agent-browser-vs-browser-use.md)\n- [agent-browser vs Browserless](https://www.anchorterminal.com/compare/agent-browser-vs-browserless.md)\n- [agent-browser vs Chrome DevTools MCP](https://www.anchorterminal.com/compare/agent-browser-vs-chrome-devtools-mcp.md)\n- [agent-browser vs Hyperbrowser](https://www.anchorterminal.com/compare/agent-browser-vs-hyperbrowser.md)\n- [agent-browser vs Notte](https://www.anchorterminal.com/compare/agent-browser-vs-notte.md)\n- [agent-browser vs Playwright MCP](https://www.anchorterminal.com/compare/agent-browser-vs-playwright-mcp.md)\n- [agent-browser vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/agent-browser-vs-puppeteer-reference-server-archived.md)\n- [agent-browser vs Skyvern](https://www.anchorterminal.com/compare/agent-browser-vs-skyvern.md)\n- [agent-browser vs Steel](https://www.anchorterminal.com/compare/agent-browser-vs-steel.md)\n- [agent-browser vs TinyFish](https://www.anchorterminal.com/compare/agent-browser-vs-tinyfish.md)\n- [Airtop vs Browserbase](https://www.anchorterminal.com/compare/airtop-vs-browserbase.md)\n- [Anchor Browser vs Browserbase](https://www.anchorterminal.com/compare/anchor-browser-vs-browserbase.md)\n- [Browser Use vs Browserbase](https://www.anchorterminal.com/compare/browser-use-vs-browserbase.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 Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/browserbase-vs-puppeteer-reference-server-archived.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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