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Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →There is no universal number. A screenshot API’s published requests-per-second limit is a request-rate ceiling, not a promise about how many browser renders can be in flight simultaneously. Check the specific provider and plan for an explicit concurrency limit; if its documentation gives only a request rate, don’t infer an exact simultaneous-render count.
Three limits that are easy to confuse
- Requests per second (RPS): how quickly an API accepts or permits new HTTP requests. It may be enforced as a burst or rate limit.
- In-flight concurrency: how many requests or browser renders are being processed at the same time.
- Monthly quota: how many captures or renders your plan includes over a billing period.
These limits answer different questions. A request can take longer or shorter depending on the page and service conditions, so an RPS figure does not establish a concurrency formula. A monthly quota likewise does not tell you how many captures can run simultaneously.
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Published limits from two providers
The figures below describe different services and units; they are not directly comparable concurrency counts.
| Provider and plan | Documented request rate | Monthly allowance | Documented in-flight concurrency |
|---|---|---|---|
| ScreenshotNeo | Not stated in the product facts provided; see ScreenshotNeo documentation. | Free: 1,000 shots/month; Starter: 3,000; Growth: 15,000; Pro: 60,000; Scale: 250,000; Business: 1,000,000. | Not stated in the product facts provided. |
| Screenshot API — Free | 1 request/second | 100 renders/month | Not stated in its documentation. |
| Screenshot API — Starter | 5 requests/second | 2,000 renders/month | Not stated in its documentation. |
| Screenshot API — Pro | 10 requests/second | 10,000 renders/month | Not stated in its documentation. |
| Screenshot API — Team | 25 requests/second | 25,000 renders/month | Not stated in its documentation. |
| Screenshot API — Business | 50 requests/second | 100,000 renders/month | Not stated in its documentation. |
| Cloudflare Workers Paid Browser Rendering REST API | 10 requests/second (600/minute), as announced March 4, 2026. | Not stated in the cited changelog. | The cited changelog treats Browser Sessions concurrency as a separate limit area; the screenshot endpoint page does not state a per-account simultaneous-request count. |
| Screenshot API .org — Free | 60 requests/minute | 500 screenshots/month | Not stated in its documentation. |
Screenshot API’s plan figures are from its current documentation accessed October 3, 2026, and its monthly quota resets at the start of each calendar month, UTC. Its documented request rates are rates, not guaranteed simultaneous captures. Screenshot API plan and rate-limit documentation.
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Cloudflare’s Workers Paid Browser Rendering REST API rate was raised from 3 requests/second (180/minute) to 10 requests/second (600/minute) in a changelog dated March 4, 2026. The changelog includes /screenshot among REST API actions. It distinguishes Browser Sessions concurrency and new-browser limits from the REST rate limit. Cloudflare changelog. The endpoint documentation describes screenshot capture and REST API token or Workers Bindings access, but does not give a per-account in-flight count. Cloudflare screenshot endpoint documentation.
Screenshot API .org documents a batch endpoint for submitting multiple URLs in one HTTP request and tracking batch progress. Its Free plan lists 60 requests per minute and 500 screenshots per month; those are separate units. Batching may reduce HTTP submissions, but it does not by itself remove render or quota limits. Screenshot API .org documentation.
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How to determine the limit for your integration
- Name the provider and plan. Limits vary by service, endpoint and account tier.
- Find the specific unit in its documentation. Look for RPS or requests per minute, in-flight concurrency, monthly captures, and batch-size rules separately.
- Check live responses and account reporting. Use documented rate-limit or quota headers and the provider dashboard where available; limits may be account-specific.
- Pace traffic below the published request rate. Avoid treating a rate limit as a safe concurrency target. If the provider publishes an explicit in-flight cap, obey that separately.
- Handle throttling and saturation as documented. Honor retry headers such as
Retry-Afterwhere supplied, and use a bounded delay or backoff rather than immediately resending a failed request.
What to do when requests fail or slow down
HTTP 429: rate limited
For Screenshot API, HTTP 429 indicates rate limiting, and its documentation advises honoring Retry-After. Reduce the submission rate and retry according to that header. These are service-specific instructions, not a guarantee that every screenshot API uses the same status behavior. Screenshot API documentation.
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HTTP 503 with a busy response
Screenshot API documents HTTP 503 busy as renderer saturation and recommends retrying after a short pause. Distinguish this from a 429: a service may be unable to render at that moment even when your request rate is within its documented limit. Follow the provider’s response guidance. Screenshot API documentation.
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Batching multiple URLs
A batch endpoint can make submission more efficient when capturing a list of pages. Check the batch endpoint’s maximum size, status mechanism, and how individual captures count toward quota. One HTTP batch submission is not necessarily one render for billing or concurrency purposes; verify the provider’s rules rather than assuming.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Or skip the browser setup:
ScreenshotNeo is a website screenshot API and MCP server for developers. Its documented plan allowances are monthly shots, but the product facts provided do not state an RPS or in-flight concurrency limit; check the ScreenshotNeo documentation for the current API details.
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One GET request can return an image or PDF. For example, this cURL call saves a WebP screenshot of Stripe:
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webp
Quick Recap
ScreenshotNeo accepts cookie or consent banners like a visitor and removes more than 60 known consent platforms, newsletter popups and chat widgets before capture; each step can be turned off. Bot checks, blank pages, timeouts, failed loads and cache hits are not billed, and the response identifies the page verdict and billing status in headers. Its MCP server gives AI agents tools for screenshots, page information and PDF capture. Free includes 1,000 shots a month with no card; paid plans start at $5 for 3,000 shots. Learn about ScreenshotNeo, then sign up for 1,000 free screenshots a month, with no card.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
