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Webcap Web Capture API — Screenshot, Extract & Monitor
x402
Webcap Web Capture API — Screenshot, Extract & Monitor is a paid API for AI agents from webcap.shoutsid.fyi, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-12).
Captures a screenshot of any URL and optionally extracts structured page content, supporting custom viewports, post-load actions, proxies, and mobile rendering.
Price / call$0.001
Success—
StatusUnknown
How this service works
Screenshot any URL. Extract structured data. Monitor for changes. Developer API with pay-per-call pricing — no API keys, no accounts.
Output
Returns a JSON object containing: an artifact object with a base64-encoded image or PDF (data field), the artifact's hosted URL, file size in bytes, and format; plus payment metadata (payer address and price in USDC units). Content extraction is included inline when requested.
Example use cases
Visual regression check for a landing page
“Screenshot https://acme.com/pricing as a full-page PNG using a 1280×800 desktop viewport so I can see whether the layout looks correct after the deploy.”
Mobile render of a competitor product page
“Capture https://stripe.com/pricing as a JPEG using a mobile viewport so I can see how it looks on a phone, and pull out the main content text with a word limit of 300 words.”
Scrape article text from a paywalled page
“Load https://example.com/article, use the stealth proxy to bypass bot detection, wait up to 8 seconds for the '.article-body' selector to appear, then capture a screenshot and extract the full article text.”
Technical details
Endpoint
GEThttps://webcap.shoutsid.fyi/v1/x402/capture?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a pay-per-call, no-account-required web capture solution that supports full-page screenshots, mobile viewports, stealth proxies, CSS selector waiting, post-load browser interactions (click/type/wait), and inline text extraction — all in a single API call. Prefer it over heavier browser-automation platforms when cost-per-call matters and you do not want to manage API keys or subscriptions.
Side effects
- URL unreachable or returns non-2xx — capture fails with an error response
- Selector wait times out (capped at 10000ms) — capture may proceed without the element or return an error
- Invalid or unsupported URL scheme — request rejected
- Viewport dimensions out of allowed range (320-3840 wide, 320-2160 tall) — clamped or rejected
- Too many post-load actions (>5) — request rejected
- Payment failure — x402 payment not accepted, capture not performed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | The page to capture |
| format | string | Screenshot format (default png) |
| options | object | Capture options |
Output
Schema · Response
{
"type": "json",
"example": {
"payment": {
"payer": "0x000000000000000000000000000000000000dEaD",
"priceUsdcUnits": 1000
},
"artifact": {
"url": "https://example.com/v1/artifacts/00000000-0000-4000-8000-000000000000",
"data": "aGVsbG8gd29ybGQ=",
"bytes": 2048,
"format": "png"
}
}
}Tags
x402
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