Question 1

What is a web scraping API?

Accepted Answer

A managed service that fetches and renders web pages on your behalf, handling proxy rotation, browser execution, anti-bot evasion, and retries inside a single HTTP call. You send a URL and receive HTML or structured data back without building or operating the underlying crawl infrastructure.

Question 2

How is a scraping API different from a proxy service?

Accepted Answer

A proxy service rotates IPs but leaves browser execution, retry logic, and parsing entirely to you. A scraping API bundles all of that into one call, reducing engineering overhead substantially. The trade-off is higher per-request cost compared to raw proxy bandwidth, but lower total infrastructure spend for most teams.

Question 3

Do scraping APIs render JavaScript?

Accepted Answer

Most do, via headless Chromium or equivalent. JS rendering is slower and costs more per request, so production pipelines toggle it only on pages that actually require it. The better APIs let you configure wait conditions per request rather than applying a blanket render mode to every URL.

Question 4

How do scraping APIs handle CAPTCHAs?

Accepted Answer

They combine session warm-up, residential proxy routing, TLS fingerprint matching, and behavioural simulation to avoid triggering CAPTCHA challenges in the first place. When challenges do fire, mature providers route transparently through solver back-ends. CAPTCHA solve rates vary and should be tested on your specific hard targets.

Question 5

What does a web scraping API cost?

Accepted Answer

Per-1,000 pricing ranges from roughly £0.40 for simple HTML fetches to £8+ for headless-rendered pages on heavily protected sites. Most production teams budget £150–£2,000 per month depending on volume, render mode, and target difficulty.

Question 6

Can I use a scraping API for AI training data?

Accepted Answer

Yes. Many AI and LLM teams use managed scraping APIs to assemble training corpora and RAG indices. Verify the provider's stated position on robots.txt compliance and data-licensing terms if those matter to your downstream use case or legal obligations.

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