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render-mcp

io.github.RodRomer/render-mcp
Herramientas para desarrolladores Público y accesible MCP 2026-07-28

Qué hace este MCP

Provides hosted real-browser rendering for screenshots, post-JavaScript DOM inspection, console and network diagnostics, accessibility audits, and PDF generation.

Capacidades

Herramientas

6 herramientas
accessibility_audit
Run a WCAG accessibility audit on a page using axe-core in a real browser, and report the violations with the elements responsible. Because it runs against a genuinely rendered page, colour-contrast and other rules that depend on layout and computed colour actually fire — these are silently skipped by audits that parse HTML without a layout engine. Use this to check a page meets WCAG before shipping.
Solo lectura Acceso externo
Esquema de entrada 
{'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string', 'description': 'The absolute URL to audit, including https://'}, 'standard': {'enum': ['wcag2a', 'wcag2aa', 'wcag21aa', 'all'], 'type': 'string', 'default': 'wcag2aa', 'description': 'Which ruleset to run. \'wcag2aa\' is the usual legal benchmark but is a narrow filter — it excludes best-practice checks such as landmarks and heading order, so a page can return zero violations and still have real problems. Use \'all\' when the question is "is this page accessible?" rather than "does it meet WCAG AA?". Defaults to wcag2aa.'}, 'max_violations': {'type': 'number', 'default': 20, 'description': 'Maximum violation types to report in detail. 1-50. Defaults to 20.'}}}
inspect_element
Answer 'why isn't this element showing where I expect?' for a CSS selector on a live page. Returns the resolved box model, computed display/visibility/opacity/position/z-index, colours, whether the element is inside the viewport, and — crucially — whether another element is covering it. These are the values a browser computes after the full cascade and layout; they cannot be derived from reading HTML and CSS.
Solo lectura Acceso externo
Esquema de entrada 
{'type': 'object', 'required': ['url', 'selector'], 'properties': {'url': {'type': 'string', 'description': 'The absolute URL to load, including https://'}, 'width': {'type': 'number', 'default': 1280, 'description': 'Viewport width in pixels. 320-2560. Defaults to 1280.'}, 'height': {'type': 'number', 'default': 800, 'description': 'Viewport height in pixels. 240-2000. Defaults to 800.'}, 'selector': {'type': 'string', 'description': "CSS selector for the element to inspect, for example '.buy-button' or '#header nav a'"}, 'max_matches': {'type': 'number', 'default': 3, 'description': 'How many matching elements to report. 1-10. Defaults to 3.'}}}
page_diagnostics
Load a page in a real browser and report what went wrong: JavaScript console errors and warnings, network requests that failed, and the HTTP status of the page itself. Use this when a site looks broken, a deployment might have shipped a bug, or a page loads blank and you need to know why. An agent cannot see a browser's console any other way.
Solo lectura Acceso externo
Esquema de entrada 
{'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string', 'description': 'The absolute URL to load, including https://'}, 'width': {'type': 'number', 'default': 1280, 'description': 'Viewport width in pixels. 320-2560. Defaults to 1280.'}, 'height': {'type': 'number', 'default': 800, 'description': 'Viewport height in pixels. 240-2000. Defaults to 800.'}, 'include_warnings': {'type': 'boolean', 'default': False, 'description': 'Include console warnings and info messages, not just errors. Defaults to false.'}}}
rendered_html
Fetch a page's HTML *after* JavaScript has executed. Use this when a plain HTTP fetch returns an empty shell or a loading spinner — single-page apps, sites that build their content client-side, or anything behind a framework. Returns the final DOM as HTML text.
Solo lectura Acceso externo
Esquema de entrada 
{'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string', 'description': 'The absolute URL to load, including https://'}, 'wait_for': {'type': 'string', 'description': 'Optional CSS selector to wait for before capturing, for pages that load content late.'}, 'max_chars': {'type': 'number', 'default': 100000, 'description': 'Truncate the returned HTML to this many characters. Defaults to 100000.'}}}
screenshot_url
Take a screenshot of a web page as it actually renders in a real browser, after JavaScript has run. Use this when you need to see a page rather than read it — checking a layout, confirming a site is up and looks right, or capturing what a user would actually see. Returns a PNG image.
Solo lectura Acceso externo
Esquema de entrada 
{'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string', 'description': 'The absolute URL to capture, including https://'}, 'width': {'type': 'number', 'default': 1280, 'description': 'Viewport width in pixels. 320-2560. Defaults to 1280.'}, 'height': {'type': 'number', 'default': 800, 'description': 'Viewport height in pixels. 240-2000. Defaults to 800.'}, 'full_page': {'type': 'boolean', 'default': False, 'description': 'Capture the entire scrollable page rather than just the viewport. Defaults to false.'}}}
url_to_pdf
Render a web page to PDF exactly as a browser would print it. Use this to archive a page, produce a document from a rendered report, or capture something for a record. Returns a PDF file.
Solo lectura Acceso externo
Esquema de entrada 
{'type': 'object', 'required': ['url'], 'properties': {'url': {'type': 'string', 'description': 'The absolute URL to render, including https://'}, 'landscape': {'type': 'boolean', 'default': False, 'description': 'Landscape orientation. Defaults to false.'}}}
Historial

Cambios recientes en herramientas

Añadido
url_to_pdf
17 de September de 2026 a las 12:49
Añadido
inspect_element
17 de September de 2026 a las 12:49
Añadido
accessibility_audit
17 de September de 2026 a las 12:49
Añadido
page_diagnostics
17 de September de 2026 a las 12:49
Añadido
rendered_html
17 de September de 2026 a las 12:49
Añadido
screenshot_url
17 de September de 2026 a las 12:49
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