{
  "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": "Browser Use scores 77.9 (BB) on agent readiness against agent-browser's 66.6 (B), and leads in 5 of 7 scored categories. agent-browser leads on security \u0026 auth.",
    "b": {
      "slug": "browser-use",
      "name": "Browser Use",
      "vendor": "Browser Use",
      "vendorUrl": "https://browser-use.com",
      "kind": "http-api",
      "category": "browser",
      "summary": "Browser Use runs AI agents that operate a web browser. It has an MIT Python library and CLI, and a hosted cloud with an agent API, managed browsers over CDP and an MCP server.",
      "url": "https://www.anchorterminal.com/tools/browser-use",
      "markdownUrl": "https://www.anchorterminal.com/tools/browser-use.md",
      "slimMarkdownUrl": "https://www.anchorterminal.com/tools/browser-use.min.md",
      "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/browser-use.json",
      "repo": "https://github.com/browser-use/browser-use",
      "license": "MIT for the open-source library and the SDK. Browser Use Cloud is a proprietary service under Browser Use's terms of service",
      "transports": [
        "http",
        "streamable-http",
        "stdio"
      ],
      "remoteUrl": "https://api.browser-use.com/api/v4",
      "packages": [
        {
          "registry": "pypi",
          "name": "browser-use-sdk"
        },
        {
          "registry": "npm",
          "name": "browser-use-sdk"
        },
        {
          "registry": "pypi",
          "name": "browser-use"
        }
      ],
      "auth": "api-key",
      "authNotes": "Self-serve API key from cloud.browser-use.com, sent as the `X-Browser-Use-API-Key` header with no Bearer prefix. Keys start with `bu_`, belong to one project and share its credits and concurrency. A key can carry a monthly spending cap, which is a soft limit. No scopes were found in the docs. EU keys are separate and work only on api.eu.browser-use.com. The x402 host authenticates by wallet signature with no key.",
      "pricing": "usage",
      "pricingNotes": "Pay as you go from prepaid credits, minimum top-up $5, no subscription and no expiry. Browsers $0.02 an hour, rounded up to whole minutes, plus traffic at $5 a GB through the managed residential proxy (on by default) or $0.20 a GB direct or through your own proxy. Hosted agents cost model tokens plus a 20 per cent fee, plus browser time and traffic. $1 of free credit once for eligible Google, GitHub or Microsoft signups, no card. An agent with a wallet can start without an account by x402 (https://browser-use.com/pricing, https://docs.browser-use.com/cloud/guides/x402.md).",
      "priceSummary": "$0.02 / browser-hr",
      "where": "both",
      "x402": {
        "level": "yes",
        "evidence": "x402 on https://x402.api.browser-use.com, which the docs say exposes every /api/v2 and /api/v3 route with an x402 challenge in place of API key auth. USDC on Base mainnet, signed with EIP-3009, no account or API key. Payments are credit top-ups to a project tied to the wallet, not per-call fees. /api/v4 isn't named as covered (https://docs.browser-use.com/cloud/guides/x402.md, checked 2026-10-08).",
        "endpoints": [
          {
            "url": "https://x402.api.browser-use.com/api/v3/sessions",
            "priceUsd": null,
            "network": "eip155:8453"
          }
        ]
      },
      "toolCount": 7,
      "popularity": {
        "githubStars": 117448,
        "npmWeekly": 106854,
        "pypiWeekly": 2090278,
        "asOf": "2026-10-08"
      },
      "docsUrl": "https://docs.browser-use.com",
      "llmsTxt": "https://docs.browser-use.com/llms.txt",
      "openapi": "https://docs.browser-use.com/cloud/openapi/v4.json",
      "registryName": "com.browser-use/browser-use",
      "capabilities": [
        "browser.control",
        "browser.hosted",
        "web.extract"
      ],
      "tags": [
        "official",
        "hosted",
        "open-source",
        "usage",
        "no-card",
        "x402",
        "openapi",
        "llms-txt",
        "mcp",
        "python",
        "typescript",
        "status-page",
        "soc2"
      ],
      "lastRelease": "2026-10-07",
      "graded": true,
      "anchor": {
        "graded": true,
        "score": 77.9,
        "grade": "BB",
        "agentReady": true,
        "rank": 17,
        "ranked": true,
        "rankOf": 842,
        "categoryRank": 1,
        "methodology": "0.4",
        "run": "2026-10-01",
        "scores": {
          "ergonomics": 78,
          "maintenance": 77,
          "payments": 90,
          "reliability": 87,
          "schema": 85,
          "security": 59,
          "transparency": 65
        },
        "pending": [
          "performance",
          "tasks"
        ],
        "assessment": {
          "confidence": "medium",
          "date": "2026-10-08"
        },
        "negative": 0,
        "verdict": "The hosted cloud accepts x402 top-ups in USDC on Base with no account or API key, and publishes prices, rate limits and three OpenAPI documents. The privacy policy says inputs are used to train Browser Use's models, API keys have no documented scopes, and no prompt-injection guidance was found in the docs.",
        "bestFor": "An agent that wants to hand a whole browser task to a hosted agent and get a result back, or that needs a low-cost cloud browser over CDP, and for unattended agents that can pay by x402.",
        "strengths": [
          "x402 host at x402.api.browser-use.com takes USDC on Base with no account or API key, and wallet top-ups start at $0.01",
          "Public prices without login, $0.02 a browser-hour, proxy traffic $5 a GB, model tokens plus a 20 per cent fee",
          "OpenAPI 3.1.0 documents for API v2, v3 and v4, llms.txt and Markdown copies of every docs page",
          "Rate limits published with numbers, and 429 bodies carry `limit_rps` and `retry_after_seconds` beside Retry-After",
          "Secret bindings limit each credential to at most 20 named hostnames, and a run takes a `maxCostUsd` cap"
        ],
        "weaknesses": [
          "The privacy policy says inputs are used to train Browser Use's AI models, with no opt-out described outside Enterprise zero data retention",
          "No scopes or permissions documented for API keys, and the per-key monthly spending cap is a soft limit",
          "No prompt-injection guidance found in the cloud docs, though agents read untrusted pages",
          "No idempotency key on `POST /runs`, and a client timeout leaves the billable run active",
          "The terms allow the service to be changed or discontinued with or without notice, and no deprecation policy was found"
        ],
        "agentNotes": [
          "Send the key as `X-Browser-Use-API-Key` with no Bearer prefix. A Bearer header returns 401",
          "Stop browsers with `PATCH /api/v4/browsers/{id}` and `{\"action\":\"stop\"}`. Closing CDP or the SDK client leaves the browser billing",
          "Poll `GET /runs/{id}/status`, not the full run, and wait for the returned Retry-After on 429, which can be 300 seconds at the edge",
          "Before resubmitting after a timeout, read the existing run's status. The server keeps running and may already have submitted a form",
          "With a wallet and no key, call x402.api.browser-use.com on `/api/v2` or `/api/v3` routes. A task stops with INSUFFICIENT_CREDITS if credit runs out mid-run"
        ],
        "metrics": {
          "kind": "remote",
          "measured": false
        },
        "reviewCount": 0,
        "avgRating": 0,
        "history": [
          {
            "basis": "public evidence",
            "confidence": "medium",
            "grade": "BB",
            "methodology": "0.4",
            "pending": [
              "performance",
              "tasks"
            ],
            "run": "2026-10-01",
            "runLabel": "October 2026 research run",
            "score": 77.9
          }
        ],
        "editorialScores": {
          "ergonomics": 78,
          "maintenance": 77,
          "payments": 90,
          "reliability": 87,
          "schema": 85,
          "security": 59,
          "transparency": 51
        },
        "provenanceScore": 78
      },
      "connect": {
        "install": "pip install --upgrade browser-use-sdk",
        "http": "curl https://api.browser-use.com/api/v4/runs -H \"X-Browser-Use-API-Key: $BROWSER_USE_API_KEY\" -H \"Content-Type: application/json\" -d '{\"task\":\"Find the top Hacker News story\"}'",
        "claudeCode": "claude mcp add -t http -H \"x-browser-use-api-key: YOUR_API_KEY\" browser-use https://api.browser-use.com/v3/mcp",
        "config": {
          "mcpServers": {
            "browser-use": {
              "headers": {
                "x-browser-use-api-key": "YOUR_API_KEY"
              },
              "url": "https://api.browser-use.com/v3/mcp"
            }
          }
        },
        "x402": "pip install \"browser-use-sdk[x402]\"\n# set BROWSER_USE_X402_PRIVATE_KEY, then use AsyncBrowserUse from browser_use_sdk.v3, or POST https://x402.api.browser-use.com/api/v3/sessions with an x402 client (USDC on eip155:8453)"
      },
      "letme": {
        "capability": "https://letme.dev/browser.control",
        "tool": "https://letme.dev/browser-use"
      },
      "area": "developer",
      "unitPrices": [
        {
          "item": "Cloud browser",
          "unit": "browser-hour",
          "usd": 0.02,
          "note": "rounded up to whole minutes, one-minute minimum"
        },
        {
          "item": "Residential proxy traffic",
          "unit": "gb",
          "usd": 5,
          "note": "managed proxy, on by default"
        },
        {
          "item": "Direct or own-proxy traffic",
          "unit": "gb",
          "usd": 0.2
        },
        {
          "item": "Agent service fee on model tokens",
          "unit": "pct",
          "usd": 20,
          "note": "added to model cost, plus browser time and traffic"
        },
        {
          "item": "GPT-5.6 Luna input, fee included",
          "unit": "1m-tokens",
          "usd": 0.24,
          "note": "output $1.44, cached input $0.024"
        },
        {
          "item": "Claude Sonnet 5 input, fee included",
          "unit": "1m-tokens",
          "usd": 2.4,
          "note": "output $12.00, cached input $0.24"
        },
        {
          "item": "Claude Opus 5 input, fee included",
          "unit": "1m-tokens",
          "usd": 6,
          "note": "output $30.00, cached input $0.60"
        },
        {
          "item": "BU 2.0 model API input",
          "unit": "1m-tokens",
          "usd": 0.6,
          "note": "output $3.50, cached input $0.06"
        }
      ],
      "provenance": {
        "legalEntity": "Browser Use, Inc.",
        "domain": "browser-use.com",
        "domainRegistered": "2024-11-11",
        "endpointOnVendorDomain": true,
        "terms": "https://browser-use.com/legal/terms-of-service",
        "privacy": "https://browser-use.com/privacy",
        "statusPage": "https://status.browser-use.com",
        "changelog": "https://browser-use.com/changelog",
        "securityTxt": "valid",
        "checked": "2026-10-08",
        "notes": [
          "The privacy policy names Browser Use, Inc. as the responsible entity. The terms of service, last revised 15 July 2026, name Browser Use Inc. and say it is headquartered in the United States.",
          "browser-use.com/.well-known/security.txt gives security@browser-use.com and the SOC 2 page as contact and policy, with a Canonical line and no Expires field, which RFC 9116 requires.",
          "RDAP for browser-use.com gives a registration date of 2024-11-11.",
          "The API, the x402 host, the EU API and the MCP server all answer on browser-use.com subdomains.",
          "The DPA of 30 July 2026 links the sub-processor list in a Vanta trust centre, which we didn't read."
        ],
        "score": 78
      },
      "pageJsonUrl": "https://www.anchorterminal.com/tools/browser-use.json",
      "live": {
        "slug": "browser-use",
        "probe": {
          "target": "https://api.browser-use.com/api/v4",
          "method": "get",
          "lastAt": "2026-10-09T10:14:10.548245809Z",
          "lastOk": true,
          "lastStatus": 404,
          "lastMs": 402,
          "authRequired": false,
          "uptime24h": 100,
          "uptime30d": 100,
          "p50ms24h": 399,
          "p95ms24h": 463,
          "samples24h": 202,
          "samples30d": 202,
          "days": [
            {
              "date": "2026-10-08",
              "probes": 93,
              "ok": 93
            },
            {
              "date": "2026-10-09",
              "probes": 109,
              "ok": 109
            }
          ]
        },
        "vendorStatus": {
          "page": "https://status.browser-use.com",
          "indicator": "unknown",
          "summary": "no machine-readable status found",
          "checkedAt": "2026-10-09T07:57:40.635726042Z"
        },
        "versions": [
          {
            "registry": "github",
            "name": "browser-use/browser-use",
            "version": "0.13.11",
            "released": "2026-10-07",
            "seenAt": "2026-10-08T16:03:57.128680866Z"
          },
          {
            "registry": "mcp-registry",
            "name": "com.browser-use/browser-use",
            "version": "0.13.5",
            "seenAt": "2026-10-09T02:57:46.004536428Z"
          },
          {
            "registry": "npm",
            "name": "browser-use-sdk",
            "version": "3.11.3",
            "seenAt": "2026-10-08T16:03:54.64489162Z"
          },
          {
            "registry": "pypi",
            "name": "browser-use",
            "version": "0.13.11",
            "released": "2026-10-07",
            "seenAt": "2026-10-08T16:03:57.118403182Z"
          },
          {
            "registry": "pypi",
            "name": "browser-use-sdk",
            "version": "3.11.3",
            "released": "2026-09-04",
            "seenAt": "2026-10-08T16:03:51.553845048Z"
          }
        ],
        "githubStars": 117489,
        "npmWeekly": 106854,
        "pypiWeekly": 1988477,
        "securityTxt": {
          "url": "https://browser-use.com/.well-known/security.txt",
          "state": "valid",
          "checkedAt": "2026-10-08T15:38:31.486316829Z"
        },
        "pages": [
          {
            "url": "https://browser-use.com/changelog",
            "kind": "changelog",
            "status": 200,
            "checkedAt": "2026-10-08T18:15:52.4056577Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "e7ba101972fd"
          },
          {
            "url": "https://browser-use.com/pricing",
            "kind": "pricing",
            "status": 200,
            "checkedAt": "2026-10-08T18:15:56.607383979Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "6a7e4554a766"
          },
          {
            "url": "https://browser-use.com/privacy",
            "kind": "privacy",
            "status": 200,
            "checkedAt": "2026-10-08T18:15:58.452258616Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "eae34689aea2"
          },
          {
            "url": "https://browser-use.com/legal/terms-of-service",
            "kind": "terms",
            "status": 200,
            "checkedAt": "2026-10-08T18:15:54.631348148Z",
            "changedAt": "0001-01-01T00:00:00Z",
            "fingerprint": "71b9761ec4ab"
          }
        ],
        "updatedAt": "2026-10-09T10:14:10.548245809Z"
      }
    },
    "facts": [
      {
        "a": "MCP server",
        "b": "HTTP API",
        "name": "Kind"
      },
      {
        "a": "Vercel Labs",
        "b": "Browser Use",
        "name": "Vendor"
      },
      {
        "a": "no (local only)",
        "b": "https://api.browser-use.com/api/v4",
        "name": "Hosted endpoint"
      },
      {
        "a": "stdio",
        "b": "HTTP, Streamable HTTP, stdio",
        "name": "Transports"
      },
      {
        "a": "None",
        "b": "API key",
        "name": "Auth"
      },
      {
        "a": "Free",
        "b": "Pay per use",
        "name": "Pricing"
      },
      {
        "a": "no",
        "b": "yes",
        "name": "x402"
      },
      {
        "a": "Apache-2.0",
        "b": "MIT for the open-source library and the SDK. Browser Use Cloud is a proprietary service under Browser Use's terms of service",
        "name": "Licence"
      },
      {
        "a": "158",
        "b": "7",
        "name": "Tools exposed"
      },
      {
        "a": "no",
        "b": "no",
        "name": "Read-only variant documented"
      },
      {
        "a": "yes",
        "b": "yes",
        "name": "llms.txt"
      },
      {
        "a": "not listed",
        "b": "com.browser-use/browser-use",
        "name": "MCP registry"
      },
      {
        "a": "2026-10-01",
        "b": "2026-10-07",
        "name": "Last release"
      },
      {
        "a": "no document linked",
        "b": "2026-07-15",
        "name": "Terms last updated"
      },
      {
        "a": "no document linked",
        "b": "no date given",
        "name": "Privacy policy last updated"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Customer content may train models"
      },
      {
        "a": "",
        "b": "yes",
        "name": "Terms restrict automated access"
      },
      {
        "a": "",
        "b": "yes",
        "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": "117k stars, 107k npm/wk, 2.1M PyPI/wk",
        "name": "Popularity"
      }
    ],
    "faq": [
      {
        "answer": "Browser Use scores 77.9 (BB) on agent readiness against agent-browser's 66.6 (B), and leads in 5 of 7 scored categories. agent-browser leads on security \u0026 auth.",
        "question": "Which is better for AI agents, agent-browser or Browser Use?"
      },
      {
        "answer": "agent-browser needs no key. Browser Use needs an API key. An agent can also pay Browser Use per call over x402, with no account.",
        "question": "Do agent-browser and Browser Use need an API key?"
      },
      {
        "answer": "agent-browser runs on your own machine, with no hosted endpoint listed. Browser Use has a hosted endpoint at https://api.browser-use.com/api/v4.",
        "question": "Can an agent call agent-browser and Browser Use without installing anything?"
      },
      {
        "answer": "Yes. agent-browser is open source (Apache-2.0). Browser Use is open source (MIT for the open-source library and the SDK. Browser Use Cloud is a proprietary service under Browser Use's terms of service).",
        "question": "Are agent-browser and Browser Use open source?"
      }
    ],
    "goodFor": [
      {
        "aheadOn": [
          "Security \u0026 auth, 67 against 59"
        ],
        "also": [
          "No key needed to call it"
        ],
        "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, 87 against 48",
          "Payments \u0026 pricing, 90 against 60",
          "Maintenance \u0026 community, 77 against 70"
        ],
        "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": "An agent that wants to hand a whole browser task to a hosted agent and get a result back, or that needs a low-cost cloud browser over CDP, and for unattended agents that can pay by x402.",
        "slug": "browser-use",
        "watchFor": "The privacy policy says inputs are used to train Browser Use's AI models, with no opt-out described outside Enterprise zero data retention"
      }
    ],
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      "capability": "browser.control",
      "name": "Browser automation"
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      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-anchor-browser.json",
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        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-anchor-browser"
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      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-browserbase.json",
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      {
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        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-chrome-devtools-mcp.json",
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        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-chrome-devtools-mcp"
      },
      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-hyperbrowser.json",
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        "url": "https://www.anchorterminal.com/compare/agent-browser-vs-hyperbrowser"
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      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-notte.json",
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        "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"
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      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-puppeteer-reference-server-archived.json",
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        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-skyvern.json",
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      {
        "json": "https://www.anchorterminal.com/compare/agent-browser-vs-steel.json",
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      {
        "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"
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        "json": "https://www.anchorterminal.com/compare/airtop-vs-browser-use.json",
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        "json": "https://www.anchorterminal.com/compare/browser-use-vs-browserbase.json",
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        "json": "https://www.anchorterminal.com/compare/browser-use-vs-browserless.json",
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    "scores": [
      {
        "agent-browser": 48,
        "browser-use": 87,
        "by": 39,
        "edge": "browser-use",
        "key": "reliability",
        "name": "Reliability",
        "weight": 16
      },
      {
        "key": "performance",
        "name": "Performance",
        "pending": true,
        "weight": 10
      },
      {
        "agent-browser": 84,
        "browser-use": 85,
        "by": 1,
        "edge": "browser-use",
        "key": "schema",
        "name": "Schema \u0026 documentation",
        "weight": 13
      },
      {
        "agent-browser": 78,
        "browser-use": 78,
        "by": 0,
        "edge": "",
        "key": "ergonomics",
        "name": "Agent ergonomics",
        "weight": 13
      },
      {
        "agent-browser": 67,
        "browser-use": 59,
        "by": 8,
        "edge": "agent-browser",
        "key": "security",
        "name": "Security \u0026 auth",
        "weight": 14
      },
      {
        "agent-browser": 60,
        "browser-use": 90,
        "by": 30,
        "edge": "browser-use",
        "key": "payments",
        "name": "Payments \u0026 pricing",
        "weight": 10
      },
      {
        "key": "tasks",
        "name": "Task success",
        "pending": true,
        "weight": 10
      },
      {
        "agent-browser": 70,
        "browser-use": 77,
        "by": 7,
        "edge": "browser-use",
        "key": "maintenance",
        "name": "Maintenance \u0026 community",
        "weight": 7
      },
      {
        "agent-browser": 61,
        "browser-use": 65,
        "by": 4,
        "edge": "browser-use",
        "key": "transparency",
        "name": "Transparency \u0026 trust",
        "weight": 7
      }
    ],
    "summary": "Browser Use scores 77.9 (BB) on agent readiness against agent-browser's 66.6 (B), and leads in 5 of 7 scored categories. agent-browser leads on security \u0026 auth. Both do browser automation. Browser Use 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.",
      "browser-use": "The hosted cloud accepts x402 top-ups in USDC on Base with no account or API key, and publishes prices, rate limits and three OpenAPI documents. The privacy policy says inputs are used to train Browser Use's models, API keys have no documented scopes, and no prompt-injection guidance was found in the docs."
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  "markdown": "Browser Use scores 77.9 (BB) on agent readiness against agent-browser's 66.6 (B), and leads in 5 of 7 scored categories. agent-browser leads on security \u0026 auth. Both do browser automation. Browser Use 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- Browser Use: grade BB, 77.9/100, rank #17 of 842. Markdown https://www.anchorterminal.com/tools/browser-use.md · JSON https://www.anchorterminal.com/api/v1/tools/browser-use.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 59\n\nAlso in its favour:\n- No key needed to call it\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### Browser Use (BB)\n\nGood for: An agent that wants to hand a whole browser task to a hosted agent and get a result back, or that needs a low-cost cloud browser over CDP, and for unattended agents that can pay by x402.\n\nAhead on:\n- Reliability, 87 against 48\n- Payments \u0026 pricing, 90 against 60\n- Maintenance \u0026 community, 77 against 70\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 privacy policy says inputs are used to train Browser Use's AI models, with no opt-out described outside Enterprise zero data retention\n\n\n## Score by category\n\n| Category | Weight | agent-browser | Browser Use | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 48 | 87 | Browser Use +39 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 84 | 85 | Browser Use +1 |\n| Agent ergonomics | 13% (16.2 this run) | 78 | 78 | even |\n| Security \u0026 auth | 14% (17.5 this run) | 67 | 59 | agent-browser +8 |\n| Payments \u0026 pricing | 10% (12.5 this run) | 60 | 90 | Browser Use +30 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 70 | 77 | Browser Use +7 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 61 | 65 | Browser Use +4 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **66.6 · B** | **77.9 · BB** | |\n\n## Facts side by side\n\n| Fact | agent-browser | Browser Use |\n| --- | --- | --- |\n| Kind | MCP server | HTTP API |\n| Vendor | Vercel Labs | Browser Use |\n| Hosted endpoint | no (local only) | `https://api.browser-use.com/api/v4` |\n| Transports | stdio | HTTP, Streamable HTTP, stdio |\n| Auth | None | API key |\n| Pricing | Free | Pay per use |\n| x402 | no | yes |\n| Licence | Apache-2.0 | MIT for the open-source library and the SDK. Browser Use Cloud is a proprietary service under Browser Use's terms of service |\n| Tools exposed | 158 | 7 |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| MCP registry | not listed | `com.browser-use/browser-use` |\n| Last release | 2026-10-01 | 2026-10-07 |\n| Terms last updated | no document linked | 2026-07-15 |\n| Privacy policy last updated | no document linked | no date given |\n| Customer content may train models |  | yes |\n| Terms restrict automated access |  | yes |\n| Terms restrict benchmarking |  | yes |\n| Terms or service can change without notice |  | yes |\n| Arbitration or class-action waiver |  | yes |\n| Popularity | 44k stars, 2.1M npm/wk | 117k stars, 107k npm/wk, 2.1M PyPI/wk |\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**Browser Use.** The hosted cloud accepts x402 top-ups in USDC on Base with no account or API key, and publishes prices, rate limits and three OpenAPI documents. The privacy policy says inputs are used to train Browser Use's models, API keys have no documented scopes, and no prompt-injection guidance was found in the docs.\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### Browser Use\n\n1. Send the key as `X-Browser-Use-API-Key` with no Bearer prefix. A Bearer header returns 401\n2. Stop browsers with `PATCH /api/v4/browsers/{id}` and `{\"action\":\"stop\"}`. Closing CDP or the SDK client leaves the browser billing\n3. Poll `GET /runs/{id}/status`, not the full run, and wait for the returned Retry-After on 429, which can be 300 seconds at the edge\n4. Before resubmitting after a timeout, read the existing run's status. The server keeps running and may already have submitted a form\n5. With a wallet and no key, call x402.api.browser-use.com on `/api/v2` or `/api/v3` routes. A task stops with INSUFFICIENT_CREDITS if credit runs out mid-run\n\n## Questions\n\n### Which is better for AI agents, agent-browser or Browser Use?\n\nBrowser Use scores 77.9 (BB) on agent readiness against agent-browser's 66.6 (B), and leads in 5 of 7 scored categories. agent-browser leads on security \u0026 auth.\n\n### Do agent-browser and Browser Use need an API key?\n\nagent-browser needs no key. Browser Use needs an API key. An agent can also pay Browser Use per call over x402, with no account.\n\n### Can an agent call agent-browser and Browser Use without installing anything?\n\nagent-browser runs on your own machine, with no hosted endpoint listed. Browser Use has a hosted endpoint at https://api.browser-use.com/api/v4.\n\n### Are agent-browser and Browser Use open source?\n\nYes. agent-browser is open source (Apache-2.0). Browser Use is open source (MIT for the open-source library and the SDK. Browser Use Cloud is a proprietary service under Browser Use's terms of service).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/agent-browser-vs-browser-use.json, and with the fewest tokens: https://www.anchorterminal.com/compare/agent-browser-vs-browser-use.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"agent-browser\", \"b\": \"browser-use\"}`. From a terminal: `anchor compare agent-browser browser-use`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/agent-browser.json and https://www.anchorterminal.com/api/v1/tools/browser-use.json\n\n## Other comparisons with agent-browser or Browser Use\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 Browserbase](https://www.anchorterminal.com/compare/agent-browser-vs-browserbase.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 Browser Use](https://www.anchorterminal.com/compare/airtop-vs-browser-use.md)\n- [Anchor Browser vs Browser Use](https://www.anchorterminal.com/compare/anchor-browser-vs-browser-use.md)\n- [Browser Use vs Browserbase](https://www.anchorterminal.com/compare/browser-use-vs-browserbase.md)\n- [Browser Use vs Browserless](https://www.anchorterminal.com/compare/browser-use-vs-browserless.md)\n- [Browser Use vs Chrome DevTools MCP](https://www.anchorterminal.com/compare/browser-use-vs-chrome-devtools-mcp.md)\n- [Browser Use vs Hyperbrowser](https://www.anchorterminal.com/compare/browser-use-vs-hyperbrowser.md)\n- [Browser Use vs Notte](https://www.anchorterminal.com/compare/browser-use-vs-notte.md)\n- [Browser Use vs Playwright MCP](https://www.anchorterminal.com/compare/browser-use-vs-playwright-mcp.md)\n- [Browser Use vs Puppeteer (archived MCP reference server)](https://www.anchorterminal.com/compare/browser-use-vs-puppeteer-reference-server-archived.md)\n- [Browser Use vs Skyvern](https://www.anchorterminal.com/compare/browser-use-vs-skyvern.md)\n- [Browser Use vs Steel](https://www.anchorterminal.com/compare/browser-use-vs-steel.md)\n- [Browser Use vs TinyFish](https://www.anchorterminal.com/compare/browser-use-vs-tinyfish.md)\n",
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