Quietforge Headless Browser Render API

x402

Quietforge Headless Browser Render API is a paid API for AI agents from qf-api.quietforge-studio.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Renders a URL or raw HTML to a screenshot (PNG/JPEG) or PDF using a headless browser, returning the result as base64-encoded content

Price / call$0.01

Seller volume →—

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StatusUnknown

How this service works

Pay-per-call document conversion, PDF text extraction, headless-browser rendering of a URL or HTML to PNG / JPEG / PDF, a health-probed directory of x402 pay-per-call endpoints, a sudoku generator (solver-verified, technique-graded puzzles as JSON or a print-ready A4/Letter book), a book typesetter (prose manuscript to a KDP-ready interior PDF + editable docx), a crossword generator (verified freeform grid from your clue/answer pairs as JSON or print-ready PDFs), a family tree chart layout engine (descendant / ancestor / hourglass charts from people+families JSON or a GEDCOM file, as verified layout JSON or print-ready poster and tiled PDFs), and a dataset quality audit tool (duplicates, missing values, type consistency, class imbalance, numeric outliers and PII-pattern counts for a CSV/JSON dataset, as JSON or a one-page PDF summary). Payment: x402 (USDC on Base). No signup, no API key.

Output

A JSON object containing the rendered content as a base64-encoded string (content_base64), the MIME type (content_type), output format, image dimensions (width, height), the page title, the final resolved URL after redirects, file size in bytes, render time in milliseconds, and the number of blocked sub-requests if block_media was enabled.

Example use cases

Automated website thumbnail generation

“Grab a 1280×800 PNG screenshot of https://mystore.com and wait until the network is idle so all images load — I need it for a thumbnail preview.”

HTML email template preview

“Render this HTML email template I have as a JPEG at 600px wide with quality 90 so I can preview exactly how it looks before I send the campaign.”

Web page to PDF for archiving

“Convert the article at https://news.example.com/article/12345 to a PDF on A4 paper in portrait mode — make sure you wait for the page to fully load before capturing.”

Technical details

Endpoint

POSThttps://qf-api.quietforge-studio.workers.dev/v1/render?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need to programmatically capture a visual snapshot of a live URL or an HTML string as PNG, JPEG, or PDF without managing your own headless browser infrastructure. It is pay-per-call with no signup or API key required, making it ideal for low-volume or on-demand screenshot tasks. Prefer it over Puppeteer/Playwright self-hosting when you want zero infrastructure overhead. It supports full-page captures, custom viewports, network-idle waiting, and PDF paper sizing — making it suitable for thumbnail generation, HTML-to-PDF conversion, and visual QA pipelines.

Side effects

URL is not publicly accessible or returns a non-2xx status — render may fail or return a blank/error page
HTML input exceeds 2 MB limit — request rejected
Viewport or dimension parameters outside allowed ranges (width 320–1920, height 200–1080) — validation error
wait_ms or wait_until timeout exceeded for slow pages — partial or failed render
full_page capture exceeds 8000px cap — silently capped
PDF options (pdf_paper, pdf_landscape) ignored when format is png or jpeg
Network errors fetching remote resources in the HTML — partial render

Input

Schema · Request body

Field	Type	Description
url	string	Public http(s) URL to render. Provide exactly one of url or html.
html	string	HTML document to render (max 2 MB). Provide exactly one of url or html.
width	integer	Viewport width in CSS px (default 1280)
format	string	Output format (default png)
height	integer	Viewport height in CSS px (default 800)
wait_ms	integer	Extra wait after load, ms
full_page	boolean	Capture the full scroll height, capped at 8000 px (png/jpeg only)
pdf_paper	string	Paper size for pdf (default A4)
wait_until	string	Navigation wait condition (default load)
block_media	boolean	Abort image/font/media sub-requests for a faster, lighter render
device_scale	integer	Device pixel ratio (default 1)
jpeg_quality	integer	JPEG quality (default 80)
pdf_landscape	boolean	Landscape paper for pdf

Output

Schema · Response

{
  "type": "json",
  "example": {
    "bytes": 61240,
    "title": "Example Domain",
    "width": 1280,
    "format": "png",
    "height": 800,
    "final_url": "https://example.com/",
    "elapsed_ms": 1840,
    "content_type": "image/png",
    "content_base64": "iVBORw0KGgo...",
    "blocked_requests": 0
  }
}

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