io.github.copperline-labs/rendex-mcp

Official13 tools

by copperline-labs · TypeScript

Rendex: Rendering API for Images, PDFs & Content Extraction

Render HTML, Markdown, or any URL to images or PDF, plus reader-mode extraction. MCP-native.

Convert HTML, Markdown, or URLs to images/PDF and extract reader-mode text.

Topics

ai-agentapiclaudemcpmodel-context-protocolscreenshotcloudflare-workersmcp-serverweb-capturescreenshot-apirendex

Captured live from the server via tools/list.

rendex_screenshot

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+.

Parameters (37)

urlstring
The webpage URL to capture (a schemeless host like 'example.com' is accepted). Mutually exclusive with 'html' and 'markdown'.
htmlstring
Raw HTML to render and capture. Mutually exclusive with 'url' and 'markdown'. Great for invoices, social cards, email templates, OG images.
markdownstring
Markdown to render to an image or PDF. Mutually exclusive with 'url' and 'html'. The server converts it to HTML before rendering. Great for reports, release notes, README snapshots, documentation cards.
formatstring
Output format — png (lossless), jpeg (smaller), webp (smallest), or pdf (document). Use pdf for invoices, reports, archival.
fullPageboolean
Capture the full scrollable page instead of just the viewport
darkModeboolean
Emulate dark color scheme (prefers-color-scheme: dark)
widthinteger
Viewport width in pixels (320-3840)
heightinteger
Viewport height in pixels (240-2160)
qualityinteger
Image quality 1-100 (JPEG/WebP only, ignored for PNG/PDF)
delayinteger
Milliseconds to wait after page load before capture (useful for JS-rendered content)
blockAdsboolean
Block ads and trackers before capture
blockResourceTypesarray
Block specific resource types to speed up capture. E.g. ['font', 'image'] for text-only screenshots.
deviceScaleFactornumber
Device pixel ratio (1 = standard, 2 = retina). Defaults to 2× Retina.
devicestring
Device preset that sets viewport, scale factor, and user agent in one shot. E.g. 'iphone_15' for a mobile screenshot. Overrides width/height/deviceScaleFactor/userAgent.
timeoutinteger
Maximum seconds to wait for page load (5-60). Cloudflare has a 60s hard cap.
waitUntilstring
Page readiness event. networkidle2 (default) is best for most sites. Use domcontentloaded for speed, networkidle0 for completeness.
waitForSelectorstring
CSS selector to wait for before capture. Essential for SPAs (e.g. '.main-content', '#app-loaded')
bestAttemptboolean
If true (default), capture whatever is rendered on timeout instead of failing. Set to false to get a hard error on timeout.
selectorstring
CSS selector of a specific element to capture instead of the full page. Useful for OG images, component extraction (e.g. '#hero', '.pricing-card')
hideSelectorsarray
CSS selectors to hide (display:none) before capture. E.g. ['.modal', '#newsletter-popup'] to remove overlays. Max 50 selectors.
blockCookieBannersboolean
Hide common cookie/consent walls (GDPR/CCPA banners) before capture. A curated selector list, lighter than custom hideSelectors.
resizeWidthinteger
Downscale the captured image to this width in pixels (16-3840). Aspect ratio is preserved if resizeHeight is omitted. Ignored for PDF.
resizeHeightinteger
Downscale the captured image to this height in pixels (16-2160). Aspect ratio is preserved if resizeWidth is omitted. Ignored for PDF.
cssstring
Custom CSS to inject into the page before capture. Hide cookie banners, add watermarks, override styles. Max 50KB.
jsstring
Custom JavaScript to execute in the page before capture. Runs in the browser sandbox. Max 50KB.
cookiesarray
Cookies to set before capture. Useful for authenticated pages. Max 50 cookies.
headersobject
Custom HTTP headers to send with the page request. Cannot override Host, Connection, Content-Length, or Transfer-Encoding.
userAgentstring
Override the browser user agent string.
pdfFormatstring
PDF page size. Only used when format='pdf'. Default: A4
pdfLandscapeboolean
PDF landscape orientation. Only used when format='pdf'.
pdfPrintBackgroundboolean
Print background colors/images in PDF. Default: true
pdfScalenumber
PDF scale factor (0.1-2). Default: 1
pdfMarginobject
PDF page margins. Only used when format='pdf'. Accepts CSS values.
dataobject
Key-value data object for Mustache templating. When provided, the 'html' or 'markdown' string is rendered as a logic-less Mustache template before capture — {{var}} inserts HTML-escaped, {{{var}}} inserts raw, {{#items}}...{{/items}} iterates arrays, {{a.b}} accesses nested fields. Not valid with 'url'. Max 256KB serialized.
geostring
ISO 3166-1 alpha-2 country code for geo-targeted capture (e.g., 'US', 'DE', 'JP'). Renders the page as seen from that country. Pro/Enterprise only. Note: CSS/JS injection, cookies, element capture, dark mode, and some other features are not available with geo-targeting.
geoCitystring
City for more precise geo-targeting (e.g., 'Berlin', 'New York'). Requires 'geo'.
geoStatestring
State or region for more precise geo-targeting (e.g., 'California'). Requires 'geo'.

rendex_extract

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.

Parameters (8)

urlstringrequired
The webpage URL to extract readable content from (a schemeless host like 'example.com' is accepted).
extractFormatstring
Output shape — markdown (default, LLM-friendly prose), json (structured fields: title/byline/excerpt/siteName/length), or html (cleaned reader-mode HTML).
waitUntilstring
Page readiness event. networkidle2 (default) is best for most sites. Use domcontentloaded for speed, networkidle0 for completeness.
timeoutinteger
Maximum seconds to wait for page load (5-60). Cloudflare has a 60s hard cap.
devicestring
Device preset that sets viewport, scale factor, and user agent in one shot. E.g. 'iphone_15' to extract the mobile version of a page.
blockAdsboolean
Block ads and trackers before extraction
blockCookieBannersboolean
Hide common cookie/consent walls (GDPR/CCPA banners) before extraction. A curated selector list, lighter than custom hideSelectors.
hideSelectorsarray
CSS selectors to hide (display:none) before extraction. E.g. ['.modal', '#newsletter-popup'] to remove overlays. Max 50 selectors.

rendex_render_link

Use this when the user wants a reusable, HOSTED image URL — an og:image or a link to embed in an <img> tag — rather than the image bytes. Do NOT use for a one-off inline screenshot (use rendex_screenshot). Renders a URL, raw HTML, or Markdown and gives back a signed, hosted, edge-cached image URL instead of the bytes — ideal for dynamic OG images: drop the URL into <meta property="og:image"> or an <img> tag and Rendex serves a cached copy on every share. Takes the same options as rendex_screenshot, plus an optional expiresIn. Returns { url, expiresAt, format, cacheTtl } as JSON. Costs 1 render credit per fresh render; cached repeat hits don't re-charge.

Parameters (38)

urlstring
The webpage URL to capture (a schemeless host like 'example.com' is accepted). Mutually exclusive with 'html' and 'markdown'.
htmlstring
Raw HTML to render and capture. Mutually exclusive with 'url' and 'markdown'. Great for invoices, social cards, email templates, OG images.
markdownstring
Markdown to render to an image or PDF. Mutually exclusive with 'url' and 'html'. The server converts it to HTML before rendering. Great for reports, release notes, README snapshots, documentation cards.
formatstring
Output format — png (lossless), jpeg (smaller), webp (smallest), or pdf (document). Use pdf for invoices, reports, archival.
fullPageboolean
Capture the full scrollable page instead of just the viewport
darkModeboolean
Emulate dark color scheme (prefers-color-scheme: dark)
widthinteger
Viewport width in pixels (320-3840)
heightinteger
Viewport height in pixels (240-2160)
qualityinteger
Image quality 1-100 (JPEG/WebP only, ignored for PNG/PDF)
delayinteger
Milliseconds to wait after page load before capture (useful for JS-rendered content)
blockAdsboolean
Block ads and trackers before capture
blockResourceTypesarray
Block specific resource types to speed up capture. E.g. ['font', 'image'] for text-only screenshots.
deviceScaleFactornumber
Device pixel ratio (1 = standard, 2 = retina). Defaults to 2× Retina.
devicestring
Device preset that sets viewport, scale factor, and user agent in one shot. E.g. 'iphone_15' for a mobile screenshot. Overrides width/height/deviceScaleFactor/userAgent.
timeoutinteger
Maximum seconds to wait for page load (5-60). Cloudflare has a 60s hard cap.
waitUntilstring
Page readiness event. networkidle2 (default) is best for most sites. Use domcontentloaded for speed, networkidle0 for completeness.
waitForSelectorstring
CSS selector to wait for before capture. Essential for SPAs (e.g. '.main-content', '#app-loaded')
bestAttemptboolean
If true (default), capture whatever is rendered on timeout instead of failing. Set to false to get a hard error on timeout.
selectorstring
CSS selector of a specific element to capture instead of the full page. Useful for OG images, component extraction (e.g. '#hero', '.pricing-card')
hideSelectorsarray
CSS selectors to hide (display:none) before capture. E.g. ['.modal', '#newsletter-popup'] to remove overlays. Max 50 selectors.
blockCookieBannersboolean
Hide common cookie/consent walls (GDPR/CCPA banners) before capture. A curated selector list, lighter than custom hideSelectors.
resizeWidthinteger
Downscale the captured image to this width in pixels (16-3840). Aspect ratio is preserved if resizeHeight is omitted. Ignored for PDF.
resizeHeightinteger
Downscale the captured image to this height in pixels (16-2160). Aspect ratio is preserved if resizeWidth is omitted. Ignored for PDF.
cssstring
Custom CSS to inject into the page before capture. Hide cookie banners, add watermarks, override styles. Max 50KB.
jsstring
Custom JavaScript to execute in the page before capture. Runs in the browser sandbox. Max 50KB.
cookiesarray
Cookies to set before capture. Useful for authenticated pages. Max 50 cookies.
headersobject
Custom HTTP headers to send with the page request. Cannot override Host, Connection, Content-Length, or Transfer-Encoding.
userAgentstring
Override the browser user agent string.
pdfFormatstring
PDF page size. Only used when format='pdf'. Default: A4
pdfLandscapeboolean
PDF landscape orientation. Only used when format='pdf'.
pdfPrintBackgroundboolean
Print background colors/images in PDF. Default: true
pdfScalenumber
PDF scale factor (0.1-2). Default: 1
pdfMarginobject
PDF page margins. Only used when format='pdf'. Accepts CSS values.
dataobject
Key-value data object for Mustache templating. When provided, the 'html' or 'markdown' string is rendered as a logic-less Mustache template before capture — {{var}} inserts HTML-escaped, {{{var}}} inserts raw, {{#items}}...{{/items}} iterates arrays, {{a.b}} accesses nested fields. Not valid with 'url'. Max 256KB serialized.
geostring
ISO 3166-1 alpha-2 country code for geo-targeted capture (e.g., 'US', 'DE', 'JP'). Renders the page as seen from that country. Pro/Enterprise only. Note: CSS/JS injection, cookies, element capture, dark mode, and some other features are not available with geo-targeting.
geoCitystring
City for more precise geo-targeting (e.g., 'Berlin', 'New York'). Requires 'geo'.
geoStatestring
State or region for more precise geo-targeting (e.g., 'California'). Requires 'geo'.
expiresIninteger
Seconds until the signed URL expires (60–2592000). Defaults to the server's TTL.

render_artifact

Use this when the user asks to make or create a branded report, invoice, summary, release notes, or document — or to 'turn this Markdown/HTML into a PDF and PNG' (optionally with a logo or accent color). Do NOT use to screenshot an existing URL (use rendex_screenshot). Turns Markdown or HTML into a branded, downloadable artifact — a PDF, a PNG, and a hosted share page — in one call. Apply a logo, accentColor, font, header, and footer. Returns hosted URLs { pdfUrl, pngUrl, shareUrl, expiresAt }. Each requested format costs 1 render credit.

Parameters (11)

contentstringrequired
The Markdown or HTML body to render (up to ~4MB).
inputFormatstring
How to interpret content. 'markdown' is converted to styled HTML; 'html' is used as a body fragment.
formatsarray
Which formats to produce. Each costs 1 credit. Default both.
accentColorstring
CSS accent color for the bar, links, and headings (e.g. '#EA580C').
logostring
Absolute http(s) URL of a logo image shown in the header.
headerstring
Plain-text header line shown beside the logo.
footerstring
Plain-text footer line shown at the bottom.
fontstring
CSS font-family stack for the body (e.g. 'Georgia, serif').
pageSetupobject
Optional paper/viewport setup.
dataobject
Optional Mustache data. When present, content is rendered as a logic-less Mustache template (plus the branding fields as {{logo}}/{{header}}/...) before conversion.
expiresIninteger
Seconds until the hosted URLs expire (3600-2592000). Default 86400 (24h).

rendex_account

Check the Rendex account: which plan it's on, how many render credits have been used vs. the monthly limit (and when it resets), the per-minute rate limit, and a one-tap link to upgrade to a higher tier. Use this whenever the user asks about their usage, remaining quota, current plan, or how to get more renders / stop hitting limits. Read-only — costs no credits.

No parameters.

watch_create

Use this when the user asks to monitor, watch, or track a webpage for changes, or to be alerted/notified when a page changes. Do NOT use for a one-time capture (use rendex_screenshot). Creates a Rendex Watch — monitors a URL on a schedule and notifies when it changes (real-Chrome visual diff with a highlighted overlay, an extracted-text diff, or both). An active watch captures its baseline immediately. Returns the created watch as JSON.

Parameters (10)

urlstringrequired
The page to monitor (a schemeless host like 'rendex.dev/pricing' is upgraded to https).
namestring
Optional label for the watch.
intervalMinutesinteger
Check frequency in minutes. Minimum is your plan's floor — Free 1440 (daily), Starter 180, Pro 30, Enterprise 5.
diffModestring
visual = pixel diff + highlighted overlay; text = extracted-text diff; both runs each.
thresholdnumber
Visual-change noise floor as a 0..1 fraction; the diff must EXCEED it to count as changed.
renderParamsobject
Render knobs applied on every check (a subset of the screenshot capture params).
aiSummaryboolean
Pro+ — attach an AI 'what changed' summary (roadmap).
webhookUrlstring
Starter+ — HMAC-signed change-webhook target.
notifyEmailstring
Any plan — send change alerts here. Must be your OWN account email (others are rejected). Defaults to it if omitted.
pausedboolean
Create the watch paused (no baseline capture or charge until resumed).

watch_test

Dry-run a watch config BEFORE creating it — render the proposed config once and report what was captured + whether the page is reachable (and the text a text-watch would compare). Creates no watch, no baseline, no diff. Use this to validate a selector/scope/identity first. Returns JSON.

Parameters (10)

urlstringrequired
The page to monitor (a schemeless host like 'rendex.dev/pricing' is upgraded to https).
namestring
Optional label for the watch.
intervalMinutesinteger
Check frequency in minutes. Minimum is your plan's floor — Free 1440 (daily), Starter 180, Pro 30, Enterprise 5.
diffModestring
visual = pixel diff + highlighted overlay; text = extracted-text diff; both runs each.
thresholdnumber
Visual-change noise floor as a 0..1 fraction; the diff must EXCEED it to count as changed.
renderParamsobject
Render knobs applied on every check (a subset of the screenshot capture params).
aiSummaryboolean
Pro+ — attach an AI 'what changed' summary (roadmap).
webhookUrlstring
Starter+ — HMAC-signed change-webhook target.
notifyEmailstring
Any plan — send change alerts here. Must be your OWN account email (others are rejected). Defaults to it if omitted.
pausedboolean
Create the watch paused (no baseline capture or charge until resumed).

watch_list

List your watches (newest first), optionally filtered by status and paged. Returns { items, nextCursor }.

Parameters (3)

statusstring
Filter by status.
cursorstring
Pagination cursor from a previous nextCursor.
limitinteger
Page size (1–100).

watch_get

Fetch one watch by ID, including its current baseline image URL and status. Returns JSON.

Parameters (1)

idstringrequired
The watch ID (UUID).

watch_run

Run an immediate check now (charges 1 credit). Returns the queued run; poll watch_runs for the result or receive a watch.changed webhook.

Parameters (1)

idstringrequired
The watch ID (UUID).

watch_runs

Read a watch's run history (newest first), paged. Each run includes changed, diffScore, and signed before/after/overlay image URLs. Returns { items, nextCursor }.

Parameters (3)

idstringrequired
The watch ID (UUID).
cursorstring
Pagination cursor from a previous nextCursor.
limitinteger
Page size (1–100).

watch_delete

Delete a watch and its run history. Irreversible.

Parameters (1)

idstringrequired
The watch ID (UUID).

watch_update

Update a watch in place — pause/resume (paused), re-point (url), change schedule/diff/notify settings, or turn a channel off (webhookUrl/notifyEmail = null). Only the fields you send change; renderParams is deep-merged over the existing config. A scope change (url/selector/fullPage/size/device) re-baselines on the next check. Returns the updated watch as JSON.

Parameters (11)

idstringrequired
The watch ID (UUID) to update.
urlstring
Re-point to a new URL (clears the baseline; the next check re-baselines).
nameany
Rename the watch (null to clear).
intervalMinutesinteger
New check frequency in minutes (subject to your plan's floor).
diffModestring
Change what counts as a change.
thresholdnumber
Change the visual-change noise floor (0..1).
renderParamsobject
Render knobs to deep-merge over the existing capture config.
aiSummaryboolean
Pro+ — toggle the AI 'what changed' summary (roadmap).
webhookUrlany
Starter+ — set or replace the change-webhook target; null to turn it off.
notifyEmailany
Set the alert email (your account email only); null to turn it off.
pausedboolean
true to pause the watch, false to resume.

README.md14 KBView on GitHub

@copperline/rendex-mcp

MCP server for Rendex — render raw HTML, Markdown, or any URL to an image or PDF via AI agents using the Model Context Protocol.

Quick Start

Claude Desktop / Cursor / Windsurf (npx)

Add to your MCP client config:

json

{
  "mcpServers": {
    "rendex": {
      "command": "npx",
      "args": ["-y", "@copperline/rendex-mcp"],
      "env": {
        "RENDEX_API_KEY": "your-api-key"
      }
    }
  }
}

Where to add this:

Client	Config location
Claude Desktop	`~/Library/Application Support/Claude/claude_desktop_config.json` (macOS)
Cursor	`.cursor/mcp.json` in project root, or Settings > MCP
Windsurf	Settings > MCP Servers

Claude Code (CLI)

Add a .mcp.json to your project root with the same config above. Then restart Claude Code.

Important: Add .mcp.json to your .gitignore — it contains your API key.

Remote (zero-install, OAuth or API key)

Connect to the hosted server at https://mcp.rendex.dev/mcp — no install needed. It's fronted by OAuth 2.1 (authorization-code + PKCE S256), so OAuth-capable clients (ChatGPT, Claude, Cursor, the MCP Inspector) connect with no API key — you sign in with a one-time email code and each caller bills against their own Rendex plan and credit pool.

Clients that prefer a static key can still pass one directly:

json

{
  "mcpServers": {
    "rendex": {
      "url": "https://mcp.rendex.dev/mcp",
      "headers": {
        "Authorization": "Bearer your-api-key"
      }
    }
  }
}

Tools

`rendex_screenshot`

Render any webpage, raw HTML, or Markdown to an image or PDF.

code

"Take a screenshot of https://example.com"
"Capture the full page of https://news.ycombinator.com in dark mode"
"Generate a PDF of https://github.com with A4 page size"
"Capture https://amazon.de as seen from Germany"
"Render this HTML invoice as a PDF"
"Render this Markdown release note as a PDF"

Parameters:

Parameter	Type	Default	Description
`url`	string	required*	Webpage URL to capture. Mutually exclusive with `html` and `markdown`.
`html`	string	—	Raw HTML to render. Mutually exclusive with `url` and `markdown`.
`markdown`	string	—	Markdown to render (server converts to HTML). Mutually exclusive with `url` and `html`.
`data`	object	—	Key-value data for Mustache templating. When set, the `html` or `markdown` string is rendered as a logic-less Mustache template before capture. Invalid with `url`.
`format`	`"png"` \| `"jpeg"` \| `"webp"` \| `"pdf"`	`"png"`	Output format
`fullPage`	boolean	`false`	Capture full scrollable page
`darkMode`	boolean	`false`	Emulate dark color scheme
`width`	number	`1280`	Viewport width (320-3840)
`height`	number	`800`	Viewport height (240-2160)
`resizeWidth`	number	—	Downscale output to this width in px (aspect ratio preserved if `resizeHeight` omitted). Ignored for PDF
`resizeHeight`	number	—	Downscale output to this height in px (aspect ratio preserved if `resizeWidth` omitted). Ignored for PDF
`quality`	number	`80`	Image quality 1-100 (JPEG/WebP only, default 80)
`delay`	number	`0`	Wait ms before capture
`blockAds`	boolean	`true`	Block ads and trackers
`blockCookieBanners`	boolean	—	Hide common cookie/consent banners (GDPR/CCPA) before capture
`blockResourceTypes`	string[]	—	Block resource types: `font`, `image`, `media`, `stylesheet`, `other`
`device`	string	—	Device preset: `desktop`, `iphone_15`, `iphone_se`, `pixel_8`, `ipad`, `ipad_pro` — sets viewport, scale, and user agent in one shot. Overrides `width`/`height`/`deviceScaleFactor`/`userAgent`
`deviceScaleFactor`	number	`2`	Device pixel ratio (1-3). 2× Retina by default
`timeout`	number	`30`	Max seconds to wait for page load (5-60)
`waitUntil`	string	`"networkidle2"`	Page readiness: `load`, `domcontentloaded`, `networkidle0`, `networkidle2`
`waitForSelector`	string	—	CSS selector to wait for before capture
`bestAttempt`	boolean	`true`	Return partial render on timeout instead of failing
`selector`	string	—	CSS selector of element to capture instead of full page
`hideSelectors`	string[]	—	CSS selectors to hide (`display:none`) before capture, e.g. `['.modal', '#newsletter-popup']`. Max 50
`css`	string	—	Custom CSS to inject before capture (max 50KB)
`js`	string	—	Custom JavaScript to execute before capture (max 50KB)
`cookies`	array	—	Cookies to set for authenticated captures (max 50)
`headers`	object	—	Custom HTTP headers for the page request
`userAgent`	string	—	Override browser user agent string
`pdfFormat`	string	—	PDF page size: `A4`, `Letter`, `Legal`, `Tabloid`, `A3`
`pdfLandscape`	boolean	—	PDF landscape orientation
`pdfPrintBackground`	boolean	`true`	Print background in PDF
`pdfScale`	number	`1`	PDF scale factor (0.1-2)
`pdfMargin`	object	—	PDF margins: `{top, right, bottom, left}` as CSS values
`geo`	string	—	ISO country code for geo-targeted capture (Pro/Enterprise)
`geoCity`	string	—	City for geo-targeting (requires `geo`)
`geoState`	string	—	State for geo-targeting (requires `geo`)
`async`	boolean	—	Process asynchronously (returns job ID)
`webhookUrl`	string	—	URL to receive callback when async capture completes
`cacheTtl`	number	—	Seconds to cache result (3600-2592000)

`rendex_extract`

Extract 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 — handling 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.

code

"Extract the article text from https://example.com/post as Markdown"
"Pull the readable content from this SPA as JSON so I can summarize it"

Parameters:

Parameter	Type	Default	Description
`url`	string	required	Webpage URL to extract readable content from
`extractFormat`	`"markdown"` \| `"json"` \| `"html"`	`"markdown"`	Output shape — `markdown` (LLM-friendly prose), `json` (structured: title/byline/excerpt/siteName/length), or `html` (cleaned reader-mode HTML)
`device`	string	—	Device preset (`desktop`, `iphone_15`, `iphone_se`, `pixel_8`, `ipad`, `ipad_pro`) — extract the mobile/tablet version of a page
`blockAds`	boolean	`true`	Block ads and trackers before extraction
`blockCookieBanners`	boolean	—	Hide common cookie/consent walls before extraction
`hideSelectors`	string[]	—	CSS selectors to hide before extraction, e.g. `['.modal', '#newsletter-popup']`. Max 50
`waitUntil`	string	`"networkidle2"`	Page readiness: `load`, `domcontentloaded`, `networkidle0`, `networkidle2`
`timeout`	number	`30`	Max seconds to wait for page load (5-60)

`rendex_render_link`

Render a URL, raw HTML, or Markdown and get back a signed, hosted, edge-cached image URL instead of the bytes — ideal for dynamic OG images. Drop the URL into <meta property="og:image"> or an <img> tag and Rendex serves a cached copy on every share. Takes the same parameters as rendex_screenshot, plus an optional expiresIn. Returns { url, expiresAt, format, cacheTtl }.

code

"Make me a hosted OG-image URL for this Markdown release note"
"Give me a render link for this HTML card that I can drop into og:image"

Parameter	Type	Default	Description
(all `rendex_screenshot` params)	—	—	Same source (`url`/`html`/`markdown`), format, sizing, and templating options
`expiresIn`	number	server TTL	Seconds until the signed URL expires (60–2592000)

`render_artifact`

Turn Markdown or HTML into a branded, downloadable artifact — a PDF, a PNG, and a hosted share page — in one call. Ideal for agent outputs: reports, invoices, summaries, release notes, dashboards. Apply a logo, accent color, font, header, and footer; choose PDF page size/orientation/margins. Returns hosted URLs { pdfUrl, pngUrl, shareUrl, expiresAt } — no storage needed on your side. Each requested format costs 1 render credit.

code

"Turn this Markdown report into a branded PDF and PNG with our logo and an orange accent"
"Render this invoice HTML to a PDF and give me a share link that expires in a week"

Parameter	Type	Default	Description
`content`	string	required	The Markdown or HTML body to render (up to ~4MB)
`inputFormat`	`"markdown"` \| `"html"`	`"markdown"`	How to interpret `content` — `markdown` is converted to styled HTML; `html` is used as a body fragment
`formats`	`("pdf" \| "png")[]`	`["pdf","png"]`	Which formats to produce. Each costs 1 credit
`accentColor`	string	—	CSS accent color for the bar, links, and headings (e.g. `#EA580C`)
`logo`	string	—	http(s) URL of a logo image shown in the header
`header`	string	—	plain-text header line shown beside the logo
`footer`	string	—	plain-text footer line shown at the bottom
`font`	string	—	CSS font-family stack for the body
`pageSetup`	object	—	`{ size, orientation, margin{top,right,bottom,left}, scale, width, height, fullPage }`
`data`	object	—	Mustache data — when set, `content` is rendered as a logic-less Mustache template (plus `{{logo}}`/`{{header}}`/… from `branding`) before conversion
`expiresIn`	number	`86400`	Seconds until the hosted URLs expire (3600–2592000). Default 24h

Rendex Watch

Monitor a URL on a schedule and get notified when it changes — real-Chrome visual diff (with a highlighted overlay), an extracted-text diff, or both. Eight tools let an agent set up, inspect, edit, and tear down watches on the shared Rendex platform (one rdx_ key, one credit pool).

code

"Watch https://example.com/pricing for visual changes and alert my webhook"
"Before I save it, test whether you can capture #pricing on that page"
"Show me the last few runs of watch <id> — did anything change?"

Tool	Purpose	Key inputs
`watch_create`	Create a watch (active → captures its baseline now)	`url`, `name?`, `intervalMinutes?`, `diffMode?` (visual/text/both), `threshold?`, `renderParams?`, `webhookUrl?` (Starter+), `notifyEmail?`, `paused?`
`watch_test`	Dry-run a config first (creates nothing)	same as `watch_create`
`watch_list`	List your watches	`status?` (active/paused/all), `cursor?`, `limit?`
`watch_get`	Fetch one watch (+ baseline URL)	`id`
`watch_run`	Run a check now (1 credit)	`id`
`watch_runs`	Run history with signed before/after/overlay URLs	`id`, `cursor?`, `limit?`
`watch_update`	Edit a watch in place — interval, diff mode, channels, render params	`id`, plus any `watch_create` field; `webhookUrl`/`notifyEmail` accept `null` to clear a channel
`watch_delete`	Delete a watch + its runs	`id`

renderParams carries the per-check capture knobs (fullPage defaults to true, selector, device, geo (Pro+), plus noise controls ignoreRegions/ignoreText/minTextChars/suppressWhilePresent and uaMode). Interval floors are per-plan (Free 1440 / Starter 180 / Pro 30 / Enterprise 5). Watch metadata + signed image URLs are returned as JSON text.

`rendex_account`

Check the account from inside the agent: which plan it's on, how many render credits have been used this month vs. the limit (and when it resets), the per-minute rate limit, and a one-tap upgrade link. Lets an agent answer "how much have I used?" or "how do I get more renders?" without sending the user to the dashboard. Read-only — costs no credits.

code

"How many Rendex renders do I have left this month?"
"What plan am I on, and how do I upgrade for more?"

Returns { plan, usage: { used, limit, remaining, unlimited, resetsAt }, rateLimitPerMinute, upgrade: { recommendedPlan, recommendedPlanCredits, upgradeUrl, manageBillingUrl } }.

Data templating

Turn one reusable template into many documents. Pass a data object alongside html or markdown, and Rendex renders the string as a logic-less Mustache template before capture — {{var}} interpolation, {{#items}}…{{/items}} loops, and nested {{a.b}} access. Great for invoices, reports, certificates, and OG cards.

code

"Render this HTML invoice template to a PDF, filling it with this data:
 <h1>Invoice {{number}}</h1><p>Total: {{total}}</p>
 data = { number: 'INV-014', total: '$2,400' }"

data is valid only with html or markdown — combining it with url returns a validation error.

Authentication

Get your API key at rendex.dev.

Set the RENDEX_API_KEY environment variable in your MCP client configuration.

Pricing

Plan	Calls/Month	Rate
Free	500	10/min
Starter	10,000	60/min
Pro	100,000	300/min
Enterprise	Custom	1,000/min

License

MIT — Copperline Labs LLC

Install

Configuration

Environment variables

RENDEX_API_KEYrequiredsecret

API key from rendex.dev dashboard

claude_desktop_config.json

{
  "mcpServers": {
    "rendex-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@copperline/rendex-mcp@1.5.1"
      ],
      "env": {
        "RENDEX_API_KEY": "<YOUR_RENDEX_API_KEY>"
      }
    }
  }
}