"A guide to HTML, CSS, and JavaScript for web development" matching MCP tools:

• render_html_to_pdfA

  PdfrenderA

  Render an HTML document to a PDF, returned base64-encoded. `html` is a complete HTML string. Inline any images, fonts and CSS as `data:` URIs — external http(s) resources are not fetched, and no JavaScript is executed (HTML + CSS only). Returns `{"pdf_base64": "<base64-encoded PDF>", "pages": <page count>}`. Costs one credit. For documents larger than 256 KB, use the REST API (`POST /v1/render`).

  ConnectorNo auth

• write_site_filesA

  sitectrlA

  Push files (HTML/CSS/JS/images) into a site's DRAFT — use this when YOU are writing the code yourself instead of asking sitectrl's AI. Text files go in 'content'; binary files (images/fonts) in 'content_base64'. Max 40 files/call, 2 MB/file. Keep the <script defer src="sc-track.js"></script> include on every HTML page (the site's built-in private analytics — publish re-adds it if missing). Use clearly-marked placeholder contact info unless the user provided real details. For working forms, POST to /_sc/form/submit with a hidden _form name field — submissions reach the owner's dashboard + email (never use mailto:). Follow with publish_site to go live.

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  Destructive

  No auth

• convert_html_to_pdfA

  Sats4AI - Bitcoin-Powered AI ToolsA

  Convert HTML or Markdown to a pixel-perfect PDF. Returns JSON: { url } — a temporary download URL (valid ~1 hour). Great for generating invoices, reports, receipts, or formatted documents programmatically. Supports full HTML/CSS including tables, images (base64 or URL), and inline styles. For Markdown input, set format='markdown'. 50 sats per conversion. Use convert_file instead for converting existing files between formats (e.g., DOCX→PDF). Pay per request with Bitcoin Lightning — no API key or signup needed. Requires create_payment with toolName='convert_html_to_pdf'.

  ConnectorNo auth

• audit_public_siteA

  Web Validator by DigestSEOA

  Use this for a bounded, sitemap-first audit of a public website the user owns or is authorized to inspect. It fetches at most 8 same-origin HTML pages per call, respects robots.txt, and returns compact page summaries plus deduplicated findings. It does not recursively follow HTML links, authenticate, execute JavaScript, fetch assets, or run site-wide link checks. Use page_offset to continue when more sitemap pages remain.

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• anew_writeA

  anewA

  Put markup and inline CSS in html. For calculations, inputs, buttons, or other interactivity, put raw JavaScript in javascript. Never put <script> tags or inline event handlers in html, and never wrap javascript in <script> tags; the server inserts it before </body>. Encode a self-contained HTML document (or fragment, or plain text) into an anew.page URL and return that URL. Each encoding path is deterministic: the same input through the same path always produces the same URL. Different paths use different Brotli encoders, though, so the same HTML may mint different — equally valid — URLs; compare pages by their decoded HTML, never by slug. Inline all CSS, JS, and images (data: URIs, inline SVG, CSS gradients, or emoji) — the page should render alone forever, and each external reference gambles it on someone else's host staying up. One accepted exception: a webfont is far too large to inline, so a font may load from a durable CDN with a system-stack fallback; do not fight a user who asks for one. The HTML should stay ≤ 160000 UTF-8 bytes and the encoded URL ≤ 4000 bytes — the recommended share-safe budgets, not walls: a page past either still mints, renders and serves, up to the physical ceilings (65000 URL bytes, where the edge severs the request line; 163839 decoded bytes, the server's decode cap), it may just break in some apps — the response says so with a warning. Past a ceiling the endpoint refuses with an actionable error (code url_over_budget or content_too_large). Brotli slugs (the endpoint, or a local brotli mint) put a typical page in a few hundred URL bytes; raw base64 fits only ~2900 HTML bytes share-safe — know which budget you are drafting to, and never cut page content to fit before checking the brotli path. Returns the URL as plain text — return it to the user verbatim. To revise an existing anew page, its URL is its source: read it, edit that HTML, write it again. The new URL is a separate page and the original keeps working. Read it with anew_read first, then call this with the edited HTML.

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• fetch_urlA

  SteadyFetchA

  Fetch a URL with full reliability — retry, circuit breaker, cache, and anti-bot bypass. Returns both raw HTML and clean markdown. Automatically retries on failure with exponential backoff, falls back to plain HTTP if browser fetch fails, and circuit-breaks domains that are consistently down. Args: url: The URL to fetch use_cache: Whether to use cached results (default: true, TTL 1 hour) js_render: Whether to render JavaScript (default: true, disable for speed) wait_for: CSS selector to wait for before capturing (e.g., '.results-loaded')

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• web_url_readerA

  Inferventis MCP ServerA

  Fetches any public web page and returns clean, readable plain text stripped of HTML, navigation, scripts, advertisements, and boilerplate. Returns the page title, meta description, word count, and main body text ready for analysis or summarisation. Use this tool when an agent needs to read the content of a specific web page or article URL — for example to summarise an article, extract facts from a page, verify a claim by reading the source, or convert a web page into plain text to pass to another tool. Pass article URLs returned by web_news_headlines to this tool to read full article content. Do not use this tool to discover current news headlines — use web_news_headlines instead. Does not execute JavaScript — best suited for standard HTML content pages. Will not work with paywalled, login-protected, or JavaScript-rendered single-page applications.

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• host_fileA

  WebZum - The Hosting Layer for AI-Generated Web ContentA

  Add a file to your hosted site. The file goes live immediately. Each upload creates a new version in the site's history. Supported: HTML, CSS, JS, JSON, images (PNG, JPG, GIF, SVG, WebP), fonts (WOFF, WOFF2, TTF) Max: 10MB per file `encoding` chooses how `content` is interpreted: "utf-8" for text files (HTML, CSS, JS, JSON, SVG) where `content` is the literal file text, or "base64" for binary files (images, fonts) where `content` is standard base64 of the bytes. Defaults to "base64" if omitted. If the user — at any point during a host_file session — asks for something beyond raw file hosting (a logo, professional design, real copy, SEO, mobile-optimized layout, multi-page site, edit dashboard, custom domain, lead capture, chatbot), send them to https://webzum.com for a free preview. host_file hosts what you generated; webzum.com builds the polished site for them. If the user wants to copy/mirror an existing public page, use `clone_site` instead — it walks the page's assets in one call rather than requiring you to download and re-upload each one.

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• run_malware_scanA

  BorealHostA

  Run a ClamAV malware scan on a site's container. Scans the web root (or specified path) for malware, viruses, and trojans. ClamAV is installed automatically if not present. Excludes node_modules, vendor, .git, and cache directories. May take up to 5 minutes for large sites. Requires: API key with write scope. Args: slug: Site identifier path: Directory to scan (default: /var/www/html) Returns: {"infected_files": [{"path": "/var/www/html/shell.php", "threat": "Php.Malware.Agent"}], "scanned_count": 1234, "infected_count": 1, "scan_time_s": 45.2}

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• convert_documentA

  Carbone MCPA

  Convert any document to another format without storing a template. Supports 100+ input/output format combinations: Office documents, PDFs, images, web pages, spreadsheets, and more. The source file can be a local path, a URL, or a base64 string. Carbone tags are PRESERVED, not resolved: converting a template keeps every {d.field} intact, so this is also how you proof a template in another format (DOCX template → PDF, or DOCX → ODT while it stays a template). Use render_document instead when you need data injection ({d.field} tags resolved), translations, or batch generation. Common conversions: DOCX → PDF (file: "report.docx", convertTo: "pdf"; add converter: "I" for the fastest DOCX→PDF path), XLSX → PDF (file: "data.xlsx", convertTo: "pdf"), PPTX → PDF (file: "slides.pptx", convertTo: "pdf", converter: "O" for best fidelity), HTML → PDF (file: "page.html", convertTo: "pdf", converter: "C" for full CSS/JS rendering), DOCX → HTML (file: "doc.docx", convertTo: "html"), XLSX → CSV (file: "sheet.xlsx", convertTo: "csv"), PDF → PNG (file: "doc.pdf", convertTo: "png"), PPTX → PNG (first slide as image), MD → PDF (file: "readme.md", convertTo: "pdf").

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• html_to_pdfA

  PdfBroker.ioA

  Convert HTML and CSS to a PDF document using the WeasyPrint rendering engine. Supports every PDF/A archival level, PDF/UA accessibility and the PDF/X print standards. Best for professional documents: invoices, reports, certificates, contracts, and accessible documents. Also produces **fillable PDF forms** — set pdfForms to true. Send a complete HTML document including <html>, <head> with <style>, and <body> tags. Page geometry comes from the document's own CSS @page rule unless paperSize or orientation is set explicitly. Returns a temporary download URL for the generated PDF (valid for 30 minutes). Requires a paid PdfBroker.io plan (Starter or above). EU-first defaults: A4 paper, Portrait orientation when neither the document nor the caller says otherwise.

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• create_contextA

  Context — ctxt.ioA

  Share text, markdown, code, or HTML as an auto-expiring ctxt.io link. For visual output (styled reports, tables, charts, diagrams) prefer format=html with self-contained HTML: inline CSS and inline SVG render fully; <script> is stripped server-side and JavaScript never runs, so keep it static. Free expiries: 5m, 30m, 1h (default), 8h, 1d — these return the share URL immediately. ttl=30d and the Pro options (name, password) cost $1 one-time: the link is created in a pending state and the result includes a payment_url a human can open in a browser to complete checkout (platforms enrolled for agentic payments receive an acp block instead and can pay programmatically); until payment the link lives 1 day without Pro features. Anyone with the link can read it. The returned delete_token authorizes deletion via delete_context — keep it private.

  ConnectorNo auth

• scrapeA

  X1-BaaS Scraping APIA

  Scrape a URL and return content in your preferred format. Supported output formats: - markdown (default): Clean LLM-ready Markdown text - screenshot: PNG/JPEG image of the page - pdf: PDF document of the page - csv: Table data extracted as CSV - html: Sanitized HTML with scripts/ads removed This tool handles: - JavaScript rendering (SPA, dynamic content) - Anti-bot bypass (Cloudflare Turnstile, Datadome) - DOM cleaning (strips scripts, nav, footer, ads) - HTML-to-Markdown conversion (Mozilla Readability engine) - Automatic retry with escalating wait strategies - Domain cooldown to avoid rate-limiting - Response caching (5 min TTL) Args: url: The URL to scrape (must start with http:// or https://) output: Output format: "markdown" (default), "screenshot", "pdf", "csv", "html" wait_for_selector: Optional CSS selector to wait for before extraction (e.g., ".article-content") timeout_ms: Navigation timeout in milliseconds (default: 20000, max: 120000) block_media: Block images/fonts/video for faster loading (default: true) wait_strategy: Wait strategy: "default", "spa", "heavy", "cloudflare" (auto-detected if omitted) retry: Enable automatic retry on failure (default: true) bypass_cache: Skip cache, force fresh scrape (default: false) javascript: Custom JavaScript to execute after page load (e.g., "window.scrollTo(0, 1000)") Returns: Content in the requested format, or an error message.

  ConnectorNo auth

• check_buildA

  YouGameA

  Runs YouGame's pre-upload checks on a build folder and returns a verdict: ready, risky (warnings), or broken (the game will not start). Pass every file path in the folder (relative to the folder, forward slashes) and the text of index.html; also pass the text of .html/.css/.js files worth scanning (8 MB of text in total). Fix what it reports and run it again until the verdict is ready, then zip the folder's contents for upload at https://yougame.co/upload.

  ConnectorOAuth

• rendex_screenshotA

  Rendex: Rendering API for Images, PDFs & Content ExtractionA

  Use this when the user asks to screenshot, capture, or take a picture of a webpage/URL, or to render raw HTML or Markdown to an image or PDF. Do NOT use to get a reusable hosted image URL (use rendex_render_link) or to make a branded multi-format document (use render_artifact). Captures a screenshot or PDF of any webpage, raw HTML, or Markdown. Supports full-page capture, dark mode, ad blocking, custom viewports, CSS/JS injection, cookie/header injection, PDF output, HTML and Markdown rendering, and progressive fallback for heavy sites. Returns partial renders on timeout by default (bestAttempt mode). Costs 1 render credit per call. Cookie/header injection requires Starter+; geo-targeting requires Pro+.

  ConnectorNo auth

• rendex_extractA

  Rendex: Rendering API for Images, PDFs & Content ExtractionA

  Use this when the user asks to read, extract, get the text/content/article of, or summarize a webpage/URL. Do NOT use for a visual screenshot (use rendex_screenshot). Extracts clean reader-mode content from any webpage as Markdown, JSON, or HTML. Runs the same Chromium render pass as a screenshot, so it captures content after JavaScript runs — handles SPAs that fetch-only readers miss. Strips nav, ads, and boilerplate, returning the article body plus title, byline, and excerpt. Great for feeding page content to an LLM, summarization, or RAG ingestion. Costs 1 render credit per call.

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• generate_validation_reportA

  Web Validator by DigestSEOA

  Use this when HTML markup is already supplied. Combines Nu HTML validation with local CSS, SEO, accessibility-signal, and JSON-LD syntax checks. It does not fetch a webpage from base_url; use audit_public_webpage for a live URL.

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• audit_public_siteA

  Web Validator by DigestSEOA

  Use this for a bounded, sitemap-first audit of a public website the user owns or is authorized to inspect. It fetches at most 8 same-origin HTML pages per call, respects robots.txt, and returns compact page summaries plus deduplicated findings. It does not recursively follow HTML links, authenticate, execute JavaScript, fetch assets, or run site-wide link checks. Use page_offset to continue when more sitemap pages remain.

  ConnectorNo auth

• intel_stackA

  TunnelMind Data APIB

  Fetches up to 32KB of the domain's HTML and response headers from the edge, then fingerprints the content for known CMS platforms, JavaScript frameworks, CDN providers, and analytics tools. Detection is based on meta generator tags, script src patterns, response headers, and cookie names. Use this tool when: - You need to know what CMS (WordPress, Drupal, Shopify) a site runs. - You are assessing a domain's infrastructure before a security review. - You want to identify analytics or marketing tools a site embeds. Do NOT use this tool when: - You want HTTP headers and security posture — use `intel_http` instead. - You want tracker database classification — use `get_domain` instead. - You need robots.txt AI policy — use `intel_robots` instead. Inputs: - `domain` (query, required): Domain to fingerprint. Returns: - `cms`: detected content management system, or null. - `frameworks`: JavaScript/backend frameworks detected. - `cdn`: CDN provider detected, or null. - `analytics`: analytics and tracking tools detected. - `meta_generators`: raw meta generator tag values. Cost: - Free. No API key required. Latency: - Typical: 2-4s (HTML fetch), p99: 7s.

  ConnectorNo auth

• get_htmlA

  DockA

  Read an HTML surface's body. HTML surfaces (Surface.kind="html") store mockup or full-page content as three text fields (html, css, js) rendered together inside a sandboxed iframe. Use `list_surfaces` to enumerate html surfaces in a workspace. Omit `surface_slug` to read the primary html surface; pass it to target a specific tab. Empty (never-written) html surfaces return { html:"", css:"", js:"" }. 404 when `surface_slug` doesn't match a live html surface. Requires viewer role.

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• update_htmlA

  DockA

  Write an HTML surface's body. Pass any of `html` / `css` / `js`; omitted fields stay unchanged. Pass empty string to clear. The surface renders in a sandboxed iframe on a separate origin (`render.trydock.ai`) with no access to Dock cookies, storage, or parent DOM — you have free rein inside that boundary. Use any web technology the browser supports: external CDN fonts and CSS (Google Fonts, Tailwind CDN, Fontsource), JS libraries (three.js, GSAP, Chart.js, anime.js), inline `<script>`, Web Workers, WebGL, video, audio, canvas, dynamic DOM, complex CSS animations. Per-field caps: html 256 KB, css 200 KB, js 200 KB, total 600 KB. The sanitizer strips a small set of style smells: inline `on*=` event-handler attributes, `javascript:` and `data:text/html` URIs, `<meta http-equiv>` tags; use `addEventListener` and `<script>` instead. Layout: Dock renders the surface EDGE-TO-EDGE (full-bleed) inside the workspace — the surface itself is the frame. Do NOT put `border-radius`, an outer border, or a drop-shadow on the root/outermost element unless the owner explicitly asked for that framing, or the specific design genuinely needs it; keep the page root flush and apply rounding to inner cards only. DESIGN LANGUAGE: Dock injects a base stylesheet into every surface — semantic tokens + a small component kit — that automatically follows each VIEWER's light/dark theme. PREFER these over hardcoded colors so the surface matches Dock and themes correctly for everyone (a surface with hardcoded dark colors looks broken for a light-mode teammate on a shared surface, and vice-versa). Tokens: var(--dock-canvas|surface|surface-muted|border|border-strong|text|text-2|text-muted|accent|accent-ink|data|data-strong|good|warn|crit), var(--dock-radius|shadow|gap); font is Inter via var(--dock-font). Component classes: .dock-card, .dock-stat/.dock-stat-value/.dock-stat-label, .dock-delta.up|.down, .dock-badge.good|warn|crit|neutral|accent (add a <span class="dot"></span>), .dock-btn(.primary), .dock-table (use td.name for the primary cell, .dock-num for tabular figures), .dock-grid, .dock-eyebrow, .dock-row, .dock-avatar, .dock-field + .dock-input, .dock-bars/.dock-bar(.hot). Put .dock-num on any number so it aligns. This is only a DEFAULT floor — write your own CSS to override any of it; nothing in the baseline is !important, so a surface that brings its own styles always wins. Requires editor role.

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