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How batch screenshot APIs work
A batch request gives the API a list of pages to render, usually with capture settings shared across the list, such as viewport size and image format. Some services finish during the request; others queue the work and return an ID. A job ID means the request was accepted, not that the image files are ready.
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- Create an API key and store it outside your source code, such as in an environment variable.
- Build a JSON request with the URLs and the provider’s supported shared options.
- POST it to the provider’s documented batch endpoint using its required authentication method.
- Inspect the response. If it includes a batch or job ID, poll the status endpoint or connect to the documented event stream until the job reaches a terminal state.
- Download the returned image, image URLs, or archive. Save any manifest and failure report with the output files.
Example: submit a batch request
The following cURL request follows Screenshot API’s documented endpoint and bearer authentication. Its documentation describes POST /api/v1/screenshot/batch, a urls array, shared viewport and format options, and a returned batch ID. This is a provider-specific example; do not assume its endpoint, authentication, or response applies to another service. See the Screenshot API REST API documentation.
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curl -X POST "https://api.screenshot-api.org/api/v1/screenshot/batch"
-H "Authorization: Bearer $SCREENSHOT_API_KEY"
-H "Content-Type: application/json"
-d '{
"urls": [
"https://example.com",
"https://example.org"
],
"options": {
"viewport": { "width": 1280, "height": 720 },
"format": "png"
}
}'Set SCREENSHOT_API_KEY in the environment before running the command. The example’s viewport and format are shared settings shown in the provider’s documentation; check the provider’s current docs for additional capture options and limits.
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Wait for completion and save the results
Read the response body and headers before writing a file. A service may return completed image bytes or URLs, or it may return a job ID that must be checked before output is available. Save each result according to its actual content type: download a screenshot URL as an image, or retrieve and extract a ZIP if the service returns an archive.
Polling and event streams
Screenshot API documents status polling at GET /api/v1/batch/:batchId and an SSE event stream at GET /api/v1/batch/:batchId/stream. Use the exact authentication and terminal-state values documented by the provider. For a polling implementation, wait between requests rather than continuously querying, and stop when the job is complete or has failed.
Archives, manifests and failed pages
url2image documents a separate lifecycle: submit JSON to /api/v1/batch, check GET /api/v1/jobs/{id}, then download with GET /api/v1/jobs/{id}/download. Its described ZIP contains one image per URL, a manifest.json with page metadata, and not-rendered.csv for failures. See url2image’s batch screenshot service. Preserve the manifest and failure list: they help associate output files with input URLs and identify pages that did not render.
Handle errors and partial results
Check HTTP status codes and the provider’s error body for both submission and retrieval requests. Screenshot API documents errors for missing or invalid authentication, invalid requests, rate limiting, quota exhaustion, rendering failures and missing selectors. Its documentation also describes rate and quota headers; the exact limits and response details depend on the account and current provider documentation.
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- Authentication error: confirm that the key is present, valid and sent in the required header or parameter; check that the shell environment variable is set.
- Invalid request: validate the JSON syntax, URL list and option names against that API’s schema.
- Rate limit or quota error: reduce request frequency, respect any retry guidance, and check account quota or applicable limits.
- Rendering failure: inspect per-URL status or failure output; retry only failed pages when the provider permits it.
- Missing selector: if a capture option depends on a CSS selector, verify that the selector exists on the rendered page or remove the selector-dependent option.
- Job never appears complete: confirm that the submitted ID and status URL belong to the same provider, and follow its documented status values rather than treating every non-error response as finished.
- Downloaded file is not an image: inspect the response content type and body. It may be a JSON job response, an error, or an archive rather than image bytes.
Choose an approach for the batch size and workflow
Compare providers on the actual requirements: URLs allowed per request or job, synchronous versus queued work, polling versus events or webhooks, output delivery, capture controls, failure reporting, retries, authentication, quota behavior and current pricing. Limits below are claims from each provider’s own documentation, not general API standards.
| Option | Documented batch details | What to verify for your workflow |
|---|---|---|
| ScreenshotNeo | Its bulk capture feature supports 100 URLs per call. A GET request to the screenshot endpoint returns a screenshot or PDF; API keys and parameter names are documented at ScreenshotNeo’s API docs. | Whether its capture and delivery options suit your batch; each response reports page verdict and billing status. |
| Screenshot API | Documents a POST batch endpoint, shared viewport/format options, a batch ID, status polling and an SSE stream. | Current batch capacity, job states, returned output format, account limits and pricing. |
| url2image | Documents a job status and archive-download flow; its service page states support for up to 500 URLs per batch. | Confirm the current capacity and archive behavior for your account and use case. |
| Browshot | Its documentation says the multiple endpoint accepts up to 10 URLs and up to 10 instances, for up to 100 combinations per call. | Confirm how instances map to requested captures and check current API limits and pricing. |
| shot-scraper | A local command-line alternative that uses URL/output pairs in YAML with shot-scraper multi. |
Install and run the tool and its browser dependencies in your own environment; it is not a hosted REST batch API. |
| ScreenshotCenter | Its feature page describes batch jobs, progress tracking, ZIP downloads, and cloud-storage and automation integrations. | Check its full API documentation for current limits and supported destinations. |
Sources: Screenshot API documentation, url2image, Browshot API documentation, shot-scraper documentation and ScreenshotCenter batch screenshot feature page. Confirm operational limits and prices on the relevant provider’s current documentation before building around them.
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ScreenshotNeo is a website screenshot API and MCP server for developers. It supports bulk capture of 100 URLs per call, but a single URL is captured with one GET request. For a simple call, replace the URL with the page you want and put your API key in place of the example value; the response is saved as WebP:
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpSee the ScreenshotNeo API documentation for the batch and capture options. ScreenshotNeo accepts cookie or consent banners before capture and removes more than 60 known consent platforms, newsletter popups and chat widgets; each step can be turned off. Bot checks or CAPTCHAs, blank pages, timeouts, failed loads and cache hits are not billed, and responses include X-Page-Verdict and X-Billed headers. Its MCP server provides take_screenshot, get_page_info and capture_pdf tools for AI agents and MCP clients. The free plan includes 1,000 screenshots a month with no card; paid plans start at $5 for 3,000 screenshots.
Sign up for ScreenshotNeo’s free plan: 1,000 screenshots a month, no card required.
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Frequently Asked Questions
Can one REST request screenshot a list of URLs?
Yes. A batch endpoint can accept a URL array in one request; the supported batch size and whether it queues a job depend on the provider.
Why did my batch return an ID instead of image files?
Some APIs enqueue the captures. Use the provider’s status endpoint or event stream, then download the output when the job is complete.
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Use the provider’s manifest or equivalent metadata when available, and retain the input URL-to-output mapping alongside the files.
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