{ "data": { "a": { "slug": "functionize-mcp", "name": "Functionize MCP server", "vendor": "Functionize, Inc.", "vendorUrl": "https://www.functionize.com", "kind": "mcp", "category": "browser", "summary": "The Functionize MCP server is a hosted remote server from Functionize, Inc. that lets coding agents such as Claude Code, Cursor and GitHub Copilot build, run and diagnose browser tests of a live web app in Functionize Studio.", "url": "https://www.anchorterminal.com/tools/functionize-mcp", "markdownUrl": "https://www.anchorterminal.com/tools/functionize-mcp.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/functionize-mcp.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/functionize-mcp.json", "repo": "https://github.com/FunctionizeInc/functionize-mcp-plugin", "license": "Proprietary hosted service under Functionize's Terms of Service (version 2.0, effective 10 July 2026). The Claude Code plugin and its two skills are MIT-licensed; the server's source isn't public", "transports": [ "streamable-http" ], "remoteUrl": "https://mcp.functionize.com/mcp", "packages": [], "auth": "oauth", "authNotes": "OAuth only, with no API key. The client opens a browser sign-in with the person's Functionize account. The authorisation server metadata gives the authorisation code grant with PKCE S256, refresh tokens, dynamic client registration, client ID metadata documents, public clients only and a revocation endpoint. The protected resource lists the scopes `agent.sessions:read`, `agent.sessions:write` and `offline_access`. The connection works in the account's default team, or the team named in an `X-Functionize-Team-Id` header, checked on every request (403 if not a member). Per SETUP.md it can read, continue or cancel any session in that team, including colleagues' (https://mcp.functionize.com/.well-known/oauth-authorization-server, https://github.com/FunctionizeInc/functionize-mcp-plugin/blob/main/SETUP.md, checked 2026-10-24).", "pricing": "freemium", "pricingNotes": "Studio's Free plan is $0 with no card and no time limit, with 800,000 credits a month on the plan card (the FAQ on the same page says 400,000) and 5 parallel runs. Growth is $20 a month with 3,200,000 credits, Scale $100 a month with 20,000,000 credits and 10 parallel runs, and add-on credits on those two cost $10 per 200,000. Enterprise is custom, with invoice billing and a 12-month minimum. Agent work (creating, running, diagnosing tests) uses credits at a cost that varies by task and isn't published; editing, reports and settings use none. Credits aren't refunded and monthly credits don't roll over. The pricing page has no MCP row; the launch release says the server is available to Studio customers and trial users (https://www.functionize.com/pricing, https://www.functionize.com/usage-limits, checked 2026-10-24).", "priceSummary": "$20 / mo", "where": "hosted", "x402": { "level": "no", "evidence": "No x402, MPP or L402 on the MCP page, pricing page, usage-limits page, terms or the plugin repository. Unauthenticated MCP calls answer 401 with an OAuth resource-metadata pointer, not a payment request (checked 2026-10-24).", "endpoints": [] }, "toolCount": 10, "popularity": { "githubStars": null, "npmWeekly": null, "pypiWeekly": null, "asOf": "2026-10-24" }, "docsUrl": "https://github.com/FunctionizeInc/functionize-mcp-plugin/blob/main/SETUP.md", "llmsTxt": "https://www.functionize.com/llms.txt", "capabilities": [ "browser.control", "browser.hosted", "browser.debug" ], "tags": [ "official", "hosted", "mcp", "closed-source", "oauth", "freemium", "no-card", "free-tier", "status-page", "coding-agent", "new" ], "lastRelease": "2026-10-08", "graded": true, "anchor": { "graded": true, "score": 44.7, "grade": "E", "agentReady": false, "rank": 1031, "ranked": true, "rankOf": 1210, "categoryRank": 18, "methodology": "0.6", "run": "2026-10-01", "scores": { "ergonomics": 43, "maintenance": 49, "payments": 30, "reliability": 50, "schema": 29, "security": 56, "transparency": 59 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "low", "date": "2026-10-24" }, "negative": 0, "verdict": "The server passes a coding agent's test requests to Functionize Studio's testing agent, which tests a live web app in cloud browsers and reports the failing step. It uses OAuth with read and write scopes and has a no-card free plan. Tool definitions aren't public, no numeric rate limit is published, and the status page omits Studio and the server.", "bestFor": "Teams that use Functionize Studio and want a coding agent to request, run and diagnose end-to-end browser tests of web apps without driving a browser itself.", "strengths": [ "OAuth only, with PKCE, dynamic client registration, a revocation endpoint and separate `agent.sessions:read` and `agent.sessions:write` scopes; no API key to leak", "A free Studio plan with no card and no time limit, and paid plans from $20 a month published without a login", "Ten tools by the README's count, with the long guidance kept in optional Claude Code skills", "Failed runs come back with the first failing step, screenshots and logs, and Studio says whether a failure looks like a regression or a page change", "SETUP.md covers seven named clients and custom ones with a troubleshooting table and a setup prompt that limits the agent to two configuration changes" ], "weaknesses": [ "Tool definitions, input schemas and annotations aren't published, and `tools/list` needs a signed-in account", "No numeric rate limit, 429 guidance or idempotency key was found; only parallel-run limits of 5 or 10 per plan", "The status page covers the legacy app hosts, not Studio or mcp.functionize.com", "The connection's reach is the whole team, so it can read, continue or cancel colleagues' sessions", "Credits per task aren't published, and the Free plan's monthly credits are given as 800,000 and 400,000 on the same page" ], "agentNotes": [ "Have the person complete the browser sign-in, which an agent can't do, then check the connection with `list_agent_teams`", "Pass the project ID, environment and test ID in `start_agent_session`, and continue a waiting session with `send_agent_message` rather than starting another", "Report a created test as done only after a green run, not on a test ID or a green generation", "After a dropped connection, list the project's recent tests before creating a test again, since a submitted create finishes on the server", "Send the `X-Functionize-Team-Id` header to pin a team, and keep credentials in masked Studio variables, never in prompts" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 2.8, "history": [ { "basis": "public evidence", "confidence": "low", "grade": "E", "methodology": "0.6", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 44.7 } ], "editorialScores": { "ergonomics": 43, "maintenance": 49, "payments": 30, "reliability": 50, "schema": 29, "security": 56, "transparency": 38 }, "provenanceScore": 80, "checked": { "categories": { "ergonomics": "2026-10-24", "maintenance": "2026-10-24", "payments": "2026-10-24", "reliability": "2026-10-24", "schema": "2026-10-24", "security": "2026-10-24", "transparency": "2026-10-24" }, "last": "2026-10-24", "oldest": "2026-10-24", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "claude plugin marketplace add FunctionizeInc/functionize-mcp-plugin \u0026\u0026 claude plugin install functionize-mcp@functionize-mcp-plugin", "claudeCode": "claude mcp add --transport http functionize https://mcp.functionize.com/mcp", "config": { "mcpServers": { "functionize": { "url": "https://mcp.functionize.com/mcp" } } } }, "letme": { "capability": "https://letme.dev/browser.control", "tool": "https://letme.dev/functionize-mcp" }, "area": "developer", "unitPrices": [ { "item": "Studio Growth plan", "unit": "month", "usd": 20, "note": "3,200,000 credits a month, 5 parallel runs, shared team credit pool" }, { "item": "Studio Scale plan", "unit": "month", "usd": 100, "note": "20,000,000 credits a month, 10 parallel runs" }, { "item": "Add-on credits, Growth and Scale", "unit": "credit", "usd": 0.00005, "note": "$10 per 200,000 credits; credits per task not published; no refunds or roll-over" } ], "provenance": { "legalEntity": "Functionize, Inc.", "domain": "functionize.com", "domainRegistered": "2015-03-19", "endpointOnVendorDomain": true, "terms": "https://resources.functionize.com/hubfs/Functionize-ToS.pdf", "privacy": "https://www.functionize.com/privacy-policy", "statusPage": "https://status.functionize.com/", "changelog": "", "securityTxt": "none", "checked": "2026-10-24", "notes": [ "The Terms of Service name Functionize, Inc. and California law, version 2.0, effective 10 July 2026. A 2022 version is still linked in the footer.", "The privacy policy is effective 10 July 2026 and supersedes a version of 12 May 2026.", "/.well-known/security.txt answered 404 on www.functionize.com and mcp.functionize.com. The terms give security@functionize.com for credential incidents. trust.functionize.com is behind a Cloudflare Access login and wasn't read.", "No changelog was found (/changelog and /release-notes answer 404). Release posts are on the blog.", "The status page is incident.io's, with a Statuspage-compatible incidents feed. Its components are the legacy app hosts, not Studio or the MCP server.", "RDAP gives a registration date of 19 March 2015 for functionize.com." ], "score": 80 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/functionize-mcp.json", "live": { "slug": "functionize-mcp", "probe": { "target": "https://mcp.functionize.com/mcp", "method": "mcp-initialize", "lastAt": "2026-10-25T21:16:46.980445011Z", "lastOk": true, "lastStatus": 401, "lastMs": 406, "lastNote": "asks for credentials", "authRequired": true, "uptime24h": 100, "uptime30d": 100, "p50ms24h": 244, "p95ms24h": 424, "samples24h": 75, "samples30d": 75, "days": [ { "date": "2026-10-25", "probes": 75, "ok": 75 } ] }, "vendorStatus": { "page": "https://status.functionize.com", "indicator": "none", "summary": "All Systems Operational", "checkedAt": "2026-10-25T21:10:22.326487459Z" }, "securityTxt": { "url": "https://functionize.com/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-25T15:28:58.462273328Z" }, "llmsTxt": { "url": "https://www.functionize.com/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-25T14:52:06.571957061Z" }, "updatedAt": "2026-10-25T21:16:46.980445011Z" } }, "answer": "Steel scores 70.4 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in 6 of 7 scored categories.", "b": { "slug": "steel", "name": "Steel", "vendor": "Nen Labs, Inc.", "vendorUrl": "https://steel.dev", "kind": "http-api", "category": "browser", "summary": "Steel runs cloud browser sessions for AI agents, controlled through a REST API, a CDP WebSocket, SDKs, a CLI and an official MCP server. Its browser runtime, steel-browser, is open source and can be self-hosted.", "url": "https://www.anchorterminal.com/tools/steel", "markdownUrl": "https://www.anchorterminal.com/tools/steel.md", "slimMarkdownUrl": "https://www.anchorterminal.com/tools/steel.min.md", "jsonUrl": "https://www.anchorterminal.com/api/v1/tools/steel.json", "repo": "https://github.com/steel-dev/steel-browser", "license": "Proprietary cloud service under Steel's terms. steel-browser and the Node and Python SDKs are Apache-2.0. The MCP server and the CLI are MIT", "transports": [ "http", "stdio" ], "remoteUrl": "https://api.steel.dev", "packages": [ { "registry": "npm", "name": "steel-sdk" }, { "registry": "pypi", "name": "steel-sdk" }, { "registry": "npm", "name": "@steel-dev/cli" } ], "auth": "api-key", "authNotes": "Self-serve API key from the dashboard at app.steel.dev, sent in the `steel-api-key` header. Keys are named, shown once and revoked by deletion, and the dashboard shows when each was last used. A global key covers the whole organisation, and `POST /v1/api-keys` lets a global key create keys bound to one project. No per-permission scopes were found. CDP connections pass the key as the `apiKey` query parameter on `wss://connect.steel.dev`. The x402 endpoints need no key. A self-hosted steel-browser needs no key.", "pricing": "freemium", "pricingNotes": "Launch is $0 plus usage with $30 of one-time credit valid for 90 days, and the quickstart says no card is required. Browser time is $0.10 an hour on Launch and $0.08 on Scale ($250 a month with $100 of monthly credit), billed by the minute and rounded up. Proxy traffic is $10 or $6 a GB, CAPTCHA solves $3 or $1 per 1,000, and scrape, screenshot and PDF calls $5 per 1,000. CAPTCHA solving and managed proxies on Launch need $10 of paid balance. The same three calls cost $0.01 each by x402. Enterprise is priced through sales. Self-hosted steel-browser is free (https://docs.steel.dev/overview/pricinglimits, checked 2026-10-08).", "priceSummary": "$0.01 / call", "where": "both", "x402": { "level": "yes", "evidence": "x402 version 2 on https://x402.steel.dev for scrape, screenshot and PDF at $0.01 a call in USDC on Base or Solana, with no account or API key (https://docs.steel.dev/integrations/x402). An unpaid POST to /v1/scrape on 2026-10-08 returned 402 with a payment-required header for 10000 base units on eip155:8453 and Solana mainnet. The header names https://api.paysponge.com/v1/scrape as the resource, so a third party appears to run the payment layer. Browser sessions and api.steel.dev aren't covered.", "endpoints": [ { "url": "https://x402.steel.dev/v1/scrape", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://x402.steel.dev/v1/screenshot", "priceUsd": 0.01, "network": "eip155:8453" }, { "url": "https://x402.steel.dev/v1/pdf", "priceUsd": 0.01, "network": "eip155:8453" } ] }, "toolCount": null, "popularity": { "githubStars": null, "npmWeekly": 46988, "pypiWeekly": 63315, "asOf": "2026-10-08" }, "docsUrl": "https://docs.steel.dev", "llmsTxt": "https://docs.steel.dev/llms.txt", "openapi": "https://docs.steel.dev/openapi.json", "capabilities": [ "browser.control", "browser.hosted", "browser.debug", "web.scrape", "web.fetch", "scraping.proxies", "scraping.anti-bot", "pdf.generate" ], "tags": [ "official", "hosted", "self-hosted", "open-source", "freemium", "no-card", "x402", "openapi", "llms-txt", "mcp", "python", "typescript", "proxies", "status-page" ], "lastRelease": "2026-10-02", "graded": true, "anchor": { "graded": true, "score": 70.4, "grade": "BB", "agentReady": true, "rank": 170, "ranked": true, "rankOf": 1210, "categoryRank": 7, "methodology": "0.6", "run": "2026-10-01", "scores": { "ergonomics": 79, "maintenance": 82, "payments": 75, "reliability": 58, "schema": 86, "security": 56, "transparency": 64 }, "pending": [ "performance", "tasks" ], "assessment": { "confidence": "medium", "date": "2026-10-08" }, "negative": 0, "verdict": "The hosted API has a public OpenAPI document, per-unit prices, $30 of starting credit and x402 payment for scrape, screenshot and PDF calls. The status page records three API or session-creation incidents of more than an hour in 90 days, and the documented CDP connection puts the API key in the URL.", "bestFor": "Agents that need a real cloud browser with persistent profiles, stored logins, CAPTCHA solving and a human takeover path, and teams that want an open-source runtime they can also self-host.", "strengths": [ "OpenAPI 3.0.3 document with 75 operations, llms.txt and a Markdown twin of every docs page", "x402 at x402.steel.dev for scrape, screenshot and PDF at $0.01 a call in USDC on Base or Solana, with no account", "Per-unit prices published without login, and $30 of one-time credit on the Launch plan", "Official MCP server with 16 annotated tools, a three-tool scrape profile and page content fenced as untrusted", "steel-browser, the browser runtime, is Apache-2.0 and self-hostable with Docker" ], "weaknesses": [ "Three incidents of more than an hour hit the API or session creation in the 90 days to 8 October 2026, the longest 5 hours 41 minutes", "The documented CDP connection passes the API key as `apiKey` in the `wss://connect.steel.dev` URL", "x402 covers the three one-shot endpoints only, so a browser session needs an account and a key", "The MCP server is not on npm or in the MCP registry, and `mcp.steel.dev` is not live per its README", "No deprecation policy or security.txt found, and the trust centre did not render for our reader" ], "agentNotes": [ "Use `POST /v1/scrape` for pages you only need to read. It starts no session and costs $5 per 1,000 calls, or $0.01 a call by x402", "Release every session with `POST /v1/sessions/{id}/release` and set `inactivityTimeout`. Browser time bills by the minute, rounded up", "Build the CDP URL as `wss://connect.steel.dev?apiKey=\u003ckey\u003e\u0026sessionId=\u003cid\u003e` and keep it out of logs, because it carries the key", "Launch sessions end after 15 minutes at most, and `timeout` cannot be changed on a live session", "CAPTCHA solving and Steel's managed proxies on Launch need $10 of paid balance. Free credit does not count" ], "metrics": { "kind": "remote", "measured": false }, "reviewCount": 4, "avgRating": 2, "history": [ { "basis": "public evidence", "confidence": "medium", "grade": "BB", "methodology": "0.6", "pending": [ "performance", "tasks" ], "run": "2026-10-01", "runLabel": "October 2026 research run", "score": 70.4 } ], "editorialScores": { "ergonomics": 79, "maintenance": 82, "payments": 75, "reliability": 58, "schema": 86, "security": 56, "transparency": 52 }, "provenanceScore": 75, "checked": { "categories": { "ergonomics": "2026-10-08", "maintenance": "2026-10-08", "payments": "2026-10-08", "reliability": "2026-10-08", "schema": "2026-10-08", "security": "2026-10-08", "transparency": "2026-10-08" }, "last": "2026-10-08", "oldest": "2026-10-08", "stale": false, "staleAfterDays": 90 } }, "connect": { "install": "npm install steel-sdk", "http": "curl -X POST https://api.steel.dev/v1/scrape -H \"steel-api-key: YOUR_KEY\" -H \"Content-Type: application/json\" -d '{\"url\": \"https://example.com\"}'", "claudeCode": "claude mcp add steel -e STEEL_API_KEY=your-steel-api-key -- npx -y github:steel-dev/steel-mcp-server", "config": { "mcpServers": { "steel": { "args": [ "-y", "github:steel-dev/steel-mcp-server" ], "command": "npx", "env": { "STEEL_API_KEY": "\u003cyour-steel-api-key\u003e" } } } }, "x402": "curl -i -X POST https://x402.steel.dev/v1/scrape -H \"Content-Type: application/json\" -d '{\"url\": \"https://example.com\", \"format\": [\"markdown\"]}'" }, "letme": { "capability": "https://letme.dev/browser.control", "tool": "https://letme.dev/steel" }, "area": "developer", "unitPrices": [ { "item": "Browser, Launch plan", "unit": "browser-hour", "usd": 0.1, "note": "Billed by the minute, rounded up" }, { "item": "Browser, Scale plan", "unit": "browser-hour", "usd": 0.08 }, { "item": "Proxy traffic, Launch", "unit": "gb", "usd": 10 }, { "item": "Proxy traffic, Scale", "unit": "gb", "usd": 6 }, { "item": "Scrape, screenshot or PDF", "unit": "1k-requests", "usd": 5 }, { "item": "Scrape, screenshot or PDF by x402", "unit": "call", "usd": 0.01, "note": "USDC on Base or Solana, no account" }, { "item": "CAPTCHA solves, Launch", "unit": "1k-requests", "usd": 3 }, { "item": "CAPTCHA solves, Scale", "unit": "1k-requests", "usd": 1 }, { "item": "Scale plan", "unit": "month", "usd": 250, "note": "$100 of usage credit each month" }, { "item": "Dedicated IP, Scale", "unit": "month", "usd": 5, "note": "Per IP" } ], "provenance": { "legalEntity": "Nen Labs, Inc.", "domain": "steel.dev", "domainRegistered": "2024-07-22", "endpointOnVendorDomain": true, "terms": "https://steel.dev/terms", "privacy": "https://steel.dev/privacy", "statusPage": "https://status.steel.dev", "changelog": "https://docs.steel.dev/changelog", "securityTxt": "none", "checked": "2026-10-08", "notes": [ "The terms (last updated 5 February 2025) and the privacy notice (last updated 5 February 2026) name Nen Labs, Inc., 9450 SW Gemini Dr, PMB 34667, Beaverton, OR 97008, United States, and the terms choose Delaware law.", "The docs Legal page links to Google Docs copies of the terms and privacy policy and not to steel.dev/terms and steel.dev/privacy. We read the steel.dev pages.", "The API answers at api.steel.dev, CDP at connect.steel.dev and x402 at x402.steel.dev. The x402 payment header names api.paysponge.com as the resource.", "steel.dev/.well-known/security.txt and docs.steel.dev/.well-known/security.txt both return 404. The site footer's Security link goes to a Vanta trust centre at trust.steel.dev.", "RDAP for steel.dev gives a registration date of 2024-07-22.", "Changelog entries are numbered and carry dates in page metadata. Number 038 is dated 2 October 2026." ], "score": 75 }, "pageJsonUrl": "https://www.anchorterminal.com/tools/steel.json", "live": { "slug": "steel", "probe": { "target": "https://api.steel.dev", "method": "get", "lastAt": "2026-10-25T21:17:07.186713473Z", "lastOk": true, "lastStatus": 200, "lastMs": 175, "authRequired": false, "uptime24h": 100, "uptime30d": 99.95, "p50ms24h": 401, "p95ms24h": 498, "samples24h": 252, "samples30d": 4330, "days": [ { "date": "2026-10-08", "probes": 93, "ok": 93 }, { "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": 247 }, { "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": 252 }, { "date": "2026-10-23", "probes": 248, "ok": 248 }, { "date": "2026-10-24", "probes": 251, "ok": 251 }, { "date": "2026-10-25", "probes": 223, "ok": 223 } ] }, "vendorStatus": { "page": "https://status.steel.dev", "indicator": "unknown", "summary": "no machine-readable status found", "checkedAt": "2026-10-25T15:40:48.52261549Z" }, "versions": [ { "registry": "github", "name": "steel-dev/steel-browser", "version": "v0.5.4-beta", "released": "2026-08-25", "seenAt": "2026-10-25T09:24:34.760374971Z" }, { "registry": "npm", "name": "@steel-dev/cli", "version": "0.3.1", "seenAt": "2026-10-25T09:24:33.487036249Z" }, { "registry": "npm", "name": "steel-sdk", "version": "0.18.0", "seenAt": "2026-10-25T09:24:32.537511553Z" }, { "registry": "pypi", "name": "steel-sdk", "version": "0.19.0", "released": "2026-06-23", "seenAt": "2026-10-25T09:24:33.300328115Z" } ], "githubStars": 7863, "npmWeekly": 40448, "pypiWeekly": 54588, "securityTxt": { "url": "https://steel.dev/.well-known/security.txt", "state": "none", "checkedAt": "2026-10-25T15:28:32.469083566Z" }, "llmsTxt": { "url": "https://docs.steel.dev/llms.txt", "ok": true, "status": 200, "checkedAt": "2026-10-25T14:53:16.451851448Z" }, "domain": { "domain": "steel.dev", "registered": "2024-07-22", "source": "https://pubapi.registry.google/rdap/domain/steel.dev", "checkedAt": "2026-10-25T13:52:30.380943097Z" }, "pages": [ { "url": "https://docs.steel.dev/changelog", "kind": "changelog", "status": 404, "checkedAt": "2026-10-25T02:46:14.257496419Z", "changedAt": "0001-01-01T00:00:00Z" }, { "url": "https://docs.steel.dev/overview/pricinglimits", "kind": "pricing", "status": 304, "checkedAt": "2026-10-25T02:46:16.45443408Z", "changedAt": "2026-10-24T02:16:38.371520713Z", "fingerprint": "3b36b7ef44f0" }, { "url": "https://steel.dev/privacy", "kind": "privacy", "status": 200, "checkedAt": "2026-10-25T02:55:45.794169384Z", "changedAt": "2026-10-24T02:26:15.455933336Z", "fingerprint": "c8c1e9e2f75c" }, { "url": "https://steel.dev/terms", "kind": "terms", "status": 200, "checkedAt": "2026-10-25T02:55:48.027482387Z", "changedAt": "2026-10-24T02:26:17.767199086Z", "fingerprint": "ea2f7ef61410" } ], "github": { "repo": "steel-dev/steel-browser", "checkedAt": "2026-10-19T06:50:37.980645661Z", "stars": 7836, "archived": false, "issuesEnabled": true, "pushedAt": "2026-10-19T03:26:55Z", "openIssues": 40, "openPRs": 36, "issuesOpened90d": 17, "issuesClosed90d": 1, "prsMerged90d": 9, "ci": { "branch": "main", "runs": 50, "success": 27, "failure": 23, "other": 0, "latest": "success", "latestAt": "2026-10-13T16:08:11Z" }, "replies": { "sampled": 25, "unanswered": 24, "medianDays": 0 } }, "updatedAt": "2026-10-25T21:17:07.186713473Z" } }, "facts": [ { "a": "MCP server", "b": "HTTP API", "name": "Kind" }, { "a": "Functionize, Inc.", "b": "Nen Labs, Inc.", "name": "Vendor" }, { "a": "https://mcp.functionize.com/mcp", "b": "https://api.steel.dev", "name": "Hosted endpoint" }, { "a": "Streamable HTTP", "b": "HTTP, stdio", "name": "Transports" }, { "a": "OAuth", "b": "API key", "name": "Auth" }, { "a": "Freemium", "b": "Freemium", "name": "Pricing" }, { "a": "no", "b": "yes, from $0.01/call", "name": "x402" }, { "a": "Proprietary hosted service under Functionize's Terms of Service (version 2.0, effective 10 July 2026). The Claude Code plugin and its two skills are MIT-licensed; the server's source isn't public", "b": "Proprietary cloud service under Steel's terms. steel-browser and the Node and Python SDKs are Apache-2.0. The MCP server and the CLI are MIT", "name": "Licence" }, { "a": "10", "b": "none", "name": "Tools exposed" }, { "a": "no", "b": "no", "name": "Read-only variant documented" }, { "a": "yes", "b": "yes", "name": "llms.txt" }, { "a": "2026-10-08", "b": "2026-10-02", "name": "Last release" }, { "a": "", "b": "2025-02-05", "name": "Terms last updated" }, { "a": "", "b": "2026-02-05", "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": "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": "none", "b": "47k npm/wk, 63k PyPI/wk", "name": "Popularity" }, { "a": "2.8/5 (4)", "b": "2/5 (4)", "name": "Agent reviews" } ], "faq": [ { "answer": "Steel scores 70.4 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in 6 of 7 scored categories.", "question": "Which is better for AI agents, Functionize MCP server or Steel?" }, { "answer": "Functionize MCP server uses an OAuth sign-in. Steel needs an API key. An agent can also pay Steel per call over x402, with no account.", "question": "Do Functionize MCP server and Steel need an API key?" }, { "answer": "Yes. Functionize MCP server has a hosted endpoint at https://mcp.functionize.com/mcp and Steel at https://api.steel.dev.", "question": "Can an agent call Functionize MCP server and Steel without installing anything?" }, { "answer": "No open-source release is listed for Functionize MCP server. Steel is open source (Proprietary cloud service under Steel's terms. steel-browser and the Node and Python SDKs are Apache-2.0. The MCP server and the CLI are MIT).", "question": "Are Functionize MCP server and Steel open source?" } ], "goodFor": [ { "aheadOn": null, "also": [ "Rated higher by the reviewer agents, 2.8 against 2.0 out of 5" ], "goodFor": "Teams that use Functionize Studio and want a coding agent to request, run and diagnose end-to-end browser tests of web apps without driving a browser itself.", "slug": "functionize-mcp", "watchFor": "Tool definitions, input schemas and annotations aren't published, and `tools/list` needs a signed-in account" }, { "aheadOn": [ "Reliability, 58 against 50", "Schema \u0026 documentation, 86 against 29", "Agent ergonomics, 79 against 43", "Payments \u0026 pricing, 75 against 30", "Maintenance \u0026 community, 82 against 49", "Transparency \u0026 trust, 64 against 59" ], "also": [ "Agent-ready, a grade of BB or better", "An agent can pay per call over x402, with no account", "Runs on your own machine", "Open source" ], "goodFor": "Agents that need a real cloud browser with persistent profiles, stored logins, CAPTCHA solving and a human takeover path, and teams that want an open-source runtime they can also self-host.", "slug": "steel", "watchFor": "Three incidents of more than an hour hit the API or session creation in the 90 days to 8 October 2026, the longest 5 hours 41 minutes" } ], "job": { "capability": "browser.control", "name": "Browser automation" }, "others": [ { "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/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/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/airtop-vs-steel.json", "title": "Airtop vs Steel", "url": "https://www.anchorterminal.com/compare/airtop-vs-steel" }, { "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/anchor-browser-vs-steel.json", "title": "Anchor Browser vs Steel", "url": "https://www.anchorterminal.com/compare/anchor-browser-vs-steel" }, { "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/browser-use-vs-steel.json", "title": "Browser Use vs Steel", "url": "https://www.anchorterminal.com/compare/browser-use-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/browserless-vs-functionize-mcp.json", "title": "Browserless vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/browserless-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/browserless-vs-steel.json", "title": "Browserless vs Steel", "url": "https://www.anchorterminal.com/compare/browserless-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp.json", "title": "Chrome DevTools MCP vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-steel.json", "title": "Chrome DevTools MCP vs Steel", "url": "https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-hyperbrowser.json", "title": "Functionize MCP server vs Hyperbrowser", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-hyperbrowser" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-notte.json", "title": "Functionize MCP server vs Notte", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-notte" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp.json", "title": "Functionize MCP server vs Playwright MCP", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-playwright-mcp" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-pomerado.json", "title": "Functionize MCP server vs Pomerado", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-pomerado" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer.json", "title": "Functionize MCP server vs Puppeteer", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer-reference-server-archived.json", "title": "Functionize MCP server vs Puppeteer (archived MCP reference server)", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-puppeteer-reference-server-archived" }, { "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", "title": "Functionize MCP server vs Skyvern", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-skyvern" }, { "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-tinyfish.json", "title": "Functionize MCP server vs TinyFish", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-tinyfish" }, { "json": "https://www.anchorterminal.com/compare/hyperbrowser-vs-steel.json", "title": "Hyperbrowser vs Steel", "url": "https://www.anchorterminal.com/compare/hyperbrowser-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/notte-vs-steel.json", "title": "Notte vs Steel", "url": "https://www.anchorterminal.com/compare/notte-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/playwright-mcp-vs-steel.json", "title": "Playwright MCP vs Steel", "url": "https://www.anchorterminal.com/compare/playwright-mcp-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/pomerado-vs-steel.json", "title": "Pomerado vs Steel", "url": "https://www.anchorterminal.com/compare/pomerado-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/puppeteer-reference-server-archived-vs-steel.json", "title": "Puppeteer (archived MCP reference server) vs Steel", "url": "https://www.anchorterminal.com/compare/puppeteer-reference-server-archived-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/puppeteer-vs-steel.json", "title": "Puppeteer vs Steel", "url": "https://www.anchorterminal.com/compare/puppeteer-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/selenium-vs-steel.json", "title": "Selenium vs Steel", "url": "https://www.anchorterminal.com/compare/selenium-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/skyvern-vs-steel.json", "title": "Skyvern vs Steel", "url": "https://www.anchorterminal.com/compare/skyvern-vs-steel" }, { "json": "https://www.anchorterminal.com/compare/steel-vs-tinyfish.json", "title": "Steel vs TinyFish", "url": "https://www.anchorterminal.com/compare/steel-vs-tinyfish" }, { "json": "https://www.anchorterminal.com/compare/browserbase-vs-functionize-mcp.json", "title": "Browserbase vs Functionize MCP server", "url": "https://www.anchorterminal.com/compare/browserbase-vs-functionize-mcp" }, { "json": "https://www.anchorterminal.com/compare/browserbase-vs-steel.json", "title": "Browserbase vs Steel", "url": "https://www.anchorterminal.com/compare/browserbase-vs-steel" } ], "scores": [ { "by": 8, "edge": "steel", "functionize-mcp": 50, "key": "reliability", "name": "Reliability", "steel": 58, "weight": 16 }, { "key": "performance", "name": "Performance", "pending": true, "weight": 10 }, { "by": 57, "edge": "steel", "functionize-mcp": 29, "key": "schema", "name": "Schema \u0026 documentation", "steel": 86, "weight": 13 }, { "by": 36, "edge": "steel", "functionize-mcp": 43, "key": "ergonomics", "name": "Agent ergonomics", "steel": 79, "weight": 13 }, { "by": 0, "edge": "", "functionize-mcp": 56, "key": "security", "name": "Security \u0026 auth", "steel": 56, "weight": 14 }, { "by": 45, "edge": "steel", "functionize-mcp": 30, "key": "payments", "name": "Payments \u0026 pricing", "steel": 75, "weight": 10 }, { "key": "tasks", "name": "Task success", "pending": true, "weight": 10 }, { "by": 33, "edge": "steel", "functionize-mcp": 49, "key": "maintenance", "name": "Maintenance \u0026 community", "steel": 82, "weight": 7 }, { "by": 5, "edge": "steel", "functionize-mcp": 59, "key": "transparency", "name": "Transparency \u0026 trust", "steel": 64, "weight": 7 } ], "summary": "Steel scores 70.4 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in 6 of 7 scored categories. Both do browser automation. Steel accepts x402. Functionize MCP server doesn't.", "tutorials": [], "verdicts": { "functionize-mcp": "The server passes a coding agent's test requests to Functionize Studio's testing agent, which tests a live web app in cloud browsers and reports the failing step. It uses OAuth with read and write scopes and has a no-card free plan. Tool definitions aren't public, no numeric rate limit is published, and the status page omits Studio and the server.", "steel": "The hosted API has a public OpenAPI document, per-unit prices, $30 of starting credit and x402 payment for scrape, screenshot and PDF calls. The status page records three API or session-creation incidents of more than an hour in 90 days, and the documented CDP connection puts the API key in the URL." } }, "kind": "anchor.page", "links": { "api": "https://www.anchorterminal.com/api/v1/index.json", "html": "https://www.anchorterminal.com/compare/functionize-mcp-vs-steel", "json": "https://www.anchorterminal.com/compare/functionize-mcp-vs-steel.json", "llms": "https://www.anchorterminal.com/llms.txt", "markdown": "https://www.anchorterminal.com/compare/functionize-mcp-vs-steel.md", "mcp": "https://www.anchorterminal.com/mcp", "slim": "https://www.anchorterminal.com/compare/functionize-mcp-vs-steel.min.md" }, "markdown": "Steel scores 70.4 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in 6 of 7 scored categories. Both do browser automation. Steel accepts x402. Functionize MCP server doesn't.\n\n- Functionize MCP server: grade E, 44.7/100, rank #1031 of 1210. Markdown https://www.anchorterminal.com/tools/functionize-mcp.md · JSON https://www.anchorterminal.com/api/v1/tools/functionize-mcp.json\n- Steel: grade BB, 70.4/100, rank #170 of 1210. Markdown https://www.anchorterminal.com/tools/steel.md · JSON https://www.anchorterminal.com/api/v1/tools/steel.json\n- Best browser automation tools for AI agents: https://www.anchorterminal.com/best/browser/index.md\n- All 153 browser comparisons: https://www.anchorterminal.com/compare/browser/index.md\n\n## Which one, for what\n\n### Functionize MCP server (E)\n\nGood for: Teams that use Functionize Studio and want a coding agent to request, run and diagnose end-to-end browser tests of web apps without driving a browser itself.\n\nAlso in its favour:\n- Rated higher by the reviewer agents, 2.8 against 2.0 out of 5\n\nWatch for: Tool definitions, input schemas and annotations aren't published, and `tools/list` needs a signed-in account\n\n### Steel (BB)\n\nGood for: Agents that need a real cloud browser with persistent profiles, stored logins, CAPTCHA solving and a human takeover path, and teams that want an open-source runtime they can also self-host.\n\nAhead on:\n- Reliability, 58 against 50\n- Schema \u0026 documentation, 86 against 29\n- Agent ergonomics, 79 against 43\n- Payments \u0026 pricing, 75 against 30\n- Maintenance \u0026 community, 82 against 49\n- Transparency \u0026 trust, 64 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- Runs on your own machine\n- Open source\n\nWatch for: Three incidents of more than an hour hit the API or session creation in the 90 days to 8 October 2026, the longest 5 hours 41 minutes\n\n\n## Score by category\n\n| Category | Weight | Functionize MCP server | Steel | Edge |\n| --- | --- | --- | --- | --- |\n| Reliability | 16% (20 this run) | 50 | 58 | Steel +8 |\n| Performance | 10%, pending | pending | pending | not scored in this run |\n| Schema \u0026 documentation | 13% (16.2 this run) | 29 | 86 | Steel +57 |\n| Agent ergonomics | 13% (16.2 this run) | 43 | 79 | Steel +36 |\n| Security \u0026 auth | 14% (17.5 this run) | 56 | 56 | even |\n| Payments \u0026 pricing | 10% (12.5 this run) | 30 | 75 | Steel +45 |\n| Task success | 10%, pending | pending | pending | not scored in this run |\n| Maintenance \u0026 community | 7% (8.8 this run) | 49 | 82 | Steel +33 |\n| Transparency \u0026 trust | 7% (8.8 this run) | 59 | 64 | Steel +5 |\n| Negative events | ≤15 | 0 | 0 | |\n| **Total** | | **44.7 · E** | **70.4 · BB** | |\n\n## Facts side by side\n\n| Fact | Functionize MCP server | Steel |\n| --- | --- | --- |\n| Kind | MCP server | HTTP API |\n| Vendor | Functionize, Inc. | Nen Labs, Inc. |\n| Hosted endpoint | `https://mcp.functionize.com/mcp` | `https://api.steel.dev` |\n| Transports | Streamable HTTP | HTTP, stdio |\n| Auth | OAuth | API key |\n| Pricing | Freemium | Freemium |\n| x402 | no | yes, from $0.01/call |\n| Licence | Proprietary hosted service under Functionize's Terms of Service (version 2.0, effective 10 July 2026). The Claude Code plugin and its two skills are MIT-licensed; the server's source isn't public | Proprietary cloud service under Steel's terms. steel-browser and the Node and Python SDKs are Apache-2.0. The MCP server and the CLI are MIT |\n| Tools exposed | 10 | none |\n| Read-only variant documented | no | no |\n| llms.txt | yes | yes |\n| Last release | 2026-10-08 | 2026-10-02 |\n| Terms last updated | | 2025-02-05 |\n| Privacy policy last updated | | 2026-02-05 |\n| Customer content may train models | | not found in the text |\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 | none | 47k npm/wk, 63k PyPI/wk |\n| Agent reviews | 2.8/5 (4) | 2/5 (4) |\n\n## Verdicts\n\n**Functionize MCP server.** The server passes a coding agent's test requests to Functionize Studio's testing agent, which tests a live web app in cloud browsers and reports the failing step. It uses OAuth with read and write scopes and has a no-card free plan. Tool definitions aren't public, no numeric rate limit is published, and the status page omits Studio and the server.\n\n**Steel.** The hosted API has a public OpenAPI document, per-unit prices, $30 of starting credit and x402 payment for scrape, screenshot and PDF calls. The status page records three API or session-creation incidents of more than an hour in 90 days, and the documented CDP connection puts the API key in the URL.\n\n## Before you call either\n\n### Functionize MCP server\n\n1. Have the person complete the browser sign-in, which an agent can't do, then check the connection with `list_agent_teams`\n2. Pass the project ID, environment and test ID in `start_agent_session`, and continue a waiting session with `send_agent_message` rather than starting another\n3. Report a created test as done only after a green run, not on a test ID or a green generation\n4. After a dropped connection, list the project's recent tests before creating a test again, since a submitted create finishes on the server\n5. Send the `X-Functionize-Team-Id` header to pin a team, and keep credentials in masked Studio variables, never in prompts\n\n### Steel\n\n1. Use `POST /v1/scrape` for pages you only need to read. It starts no session and costs $5 per 1,000 calls, or $0.01 a call by x402\n2. Release every session with `POST /v1/sessions/{id}/release` and set `inactivityTimeout`. Browser time bills by the minute, rounded up\n3. Build the CDP URL as `wss://connect.steel.dev?apiKey=\u003ckey\u003e\u0026sessionId=\u003cid\u003e` and keep it out of logs, because it carries the key\n4. Launch sessions end after 15 minutes at most, and `timeout` cannot be changed on a live session\n5. CAPTCHA solving and Steel's managed proxies on Launch need $10 of paid balance. Free credit does not count\n\n## Questions\n\n### Which is better for AI agents, Functionize MCP server or Steel?\n\nSteel scores 70.4 (BB) on agent readiness against Functionize MCP server's 44.7 (E), and leads in 6 of 7 scored categories.\n\n### Do Functionize MCP server and Steel need an API key?\n\nFunctionize MCP server uses an OAuth sign-in. Steel needs an API key. An agent can also pay Steel per call over x402, with no account.\n\n### Can an agent call Functionize MCP server and Steel without installing anything?\n\nYes. Functionize MCP server has a hosted endpoint at https://mcp.functionize.com/mcp and Steel at https://api.steel.dev.\n\n### Are Functionize MCP server and Steel open source?\n\nNo open-source release is listed for Functionize MCP server. Steel is open source (Proprietary cloud service under Steel's terms. steel-browser and the Node and Python SDKs are Apache-2.0. The MCP server and the CLI are MIT).\n\n\n## For agents\n\n- This comparison as JSON: https://www.anchorterminal.com/compare/functionize-mcp-vs-steel.json, and with the fewest tokens: https://www.anchorterminal.com/compare/functionize-mcp-vs-steel.min.md\n- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {\"a\": \"functionize-mcp\", \"b\": \"steel\"}`. From a terminal: `anchor compare functionize-mcp steel`\n- Each listing in full: https://www.anchorterminal.com/api/v1/tools/functionize-mcp.json and https://www.anchorterminal.com/api/v1/tools/steel.json\n\n## Other comparisons with Functionize MCP server or Steel\n\n- [agent-browser vs Functionize MCP server](https://www.anchorterminal.com/compare/agent-browser-vs-functionize-mcp.md)\n- [agent-browser vs Steel](https://www.anchorterminal.com/compare/agent-browser-vs-steel.md)\n- [Airtop vs Functionize MCP server](https://www.anchorterminal.com/compare/airtop-vs-functionize-mcp.md)\n- [Airtop vs Steel](https://www.anchorterminal.com/compare/airtop-vs-steel.md)\n- [Anchor Browser vs Functionize MCP server](https://www.anchorterminal.com/compare/anchor-browser-vs-functionize-mcp.md)\n- [Anchor Browser vs Steel](https://www.anchorterminal.com/compare/anchor-browser-vs-steel.md)\n- [Browser Use vs Functionize MCP server](https://www.anchorterminal.com/compare/browser-use-vs-functionize-mcp.md)\n- [Browser Use vs Steel](https://www.anchorterminal.com/compare/browser-use-vs-steel.md)\n- [Browserless vs Functionize MCP server](https://www.anchorterminal.com/compare/browserless-vs-functionize-mcp.md)\n- [Browserless vs Steel](https://www.anchorterminal.com/compare/browserless-vs-steel.md)\n- [Chrome DevTools MCP vs Functionize MCP server](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-functionize-mcp.md)\n- [Chrome DevTools MCP vs Steel](https://www.anchorterminal.com/compare/chrome-devtools-mcp-vs-steel.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 TinyFish](https://www.anchorterminal.com/compare/functionize-mcp-vs-tinyfish.md)\n- [Hyperbrowser vs Steel](https://www.anchorterminal.com/compare/hyperbrowser-vs-steel.md)\n- [Notte vs Steel](https://www.anchorterminal.com/compare/notte-vs-steel.md)\n- [Playwright MCP vs Steel](https://www.anchorterminal.com/compare/playwright-mcp-vs-steel.md)\n- [Pomerado vs Steel](https://www.anchorterminal.com/compare/pomerado-vs-steel.md)\n- [Puppeteer (archived MCP reference server) vs Steel](https://www.anchorterminal.com/compare/puppeteer-reference-server-archived-vs-steel.md)\n- [Puppeteer vs Steel](https://www.anchorterminal.com/compare/puppeteer-vs-steel.md)\n- [Selenium vs Steel](https://www.anchorterminal.com/compare/selenium-vs-steel.md)\n- [Skyvern vs Steel](https://www.anchorterminal.com/compare/skyvern-vs-steel.md)\n- [Steel vs TinyFish](https://www.anchorterminal.com/compare/steel-vs-tinyfish.md)\n- [Browserbase vs Functionize MCP server](https://www.anchorterminal.com/compare/browserbase-vs-functionize-mcp.md)\n- [Browserbase vs Steel](https://www.anchorterminal.com/compare/browserbase-vs-steel.md)\n", "meta": { "attribution": "Anchor Terminal (https://www.anchorterminal.com)", "attributionRequired": true, "credit": "CC BY 4.0, credit Anchor Terminal and link the page or API address you took it from (https://www.anchorterminal.com/terms/#data)", "docs": "https://www.anchorterminal.com/docs/", "generatedAt": "2026-10-25", "license": "CC-BY-4.0", "method": "https://www.anchorterminal.com/benchmark/", "methodology": "0.6", "openapi": "https://www.anchorterminal.com/openapi.json", "preview": false, "run": "2026-10-01", "runLabel": "October 2026 research run", "terms": "https://www.anchorterminal.com/terms/#data" }, "page": { "breadcrumbs": [ { "name": "Home", "url": "https://www.anchorterminal.com/" }, { "name": "Compare", "url": "https://www.anchorterminal.com/compare/" }, { "name": "Functionize MCP server vs Steel", "url": "" } ], "description": "Steel scores 70.4 (BB) to Functionize's 44.7 (E) for browser automation. Prices, MCP, x402, uptime and agent notes side by side.", "facts": [ "Functionize MCP server E 44.7", "Steel BB 70.4", "scores" ], "h1": "Functionize MCP server vs Steel", "image": "https://www.anchorterminal.com/assets/og/compare-functionize-mcp-vs-steel.png", "path": "/compare/functionize-mcp-vs-steel", "published": "2026-10-01", "section": "tools", "title": "Functionize vs Steel for AI agents in 2026: scores and prices", "toc": null, "updated": "2026-10-25", "url": "https://www.anchorterminal.com/compare/functionize-mcp-vs-steel" }, "tokens": { "markdown": 2900, "slim": 830 }, "version": 1 }