ScraperAPI vs ZenRows

The boundary

For basic requests, ScraperAPI is cheaper through 100,000 requests a month, ZenRows is cheaper from 100,001 through 1 million, and ScraperAPI is cheaper again from 1,000,001 through 5 million. ZenRows then takes the lower plan from 5,000,001 through 6.2 million, ScraperAPI from 6,200,001 through 10.5 million, ZenRows from 10,500,001 through 12.5 million, and ScraperAPI from 12,500,001 through its last published allowance of 21.5 million. These are plan-step reversals, not changes in page-handling quality. (ScraperAPI pricing, ZenRows pricing documentation, retrieved 2026-07-26)

The basic-request bands cannot be reused for rendered work. ScraperAPI’s published JavaScript meter is ten credits per request, while ZenRows publishes five. Premium access is ten credits in both reviewed tables, but ScraperAPI publishes thirty credits for stealth and ZenRows publishes twenty-five for protected results. A workload concentrated in JavaScript or protected pages reaches each plan step at a different URL count and can change which sequence of bands matters. (ScraperAPI credit costs, ZenRows pricing documentation, retrieved 2026-07-26)

Billing models side by side

ScraperAPI sells monthly API credits through six published paid tiers. Basic requests use one credit, while Amazon, Google, Bing, LinkedIn, premium proxy, JavaScript, screenshots, stealth, and protected handling have larger published costs. Only HTTP 200 and 404 responses are normally charged, with a documented early-cancellation exception. Unused credits reset, lower plans stop at their limits, and the plans that support pay as you go do not expose a public unit rate. (ScraperAPI pricing, ScraperAPI credit costs, retrieved 2026-07-26)

ZenRows sells a monthly balance that can fund Universal Scraper or Scraping Browser, but the two products use different formulas. Universal Scraper uses replacement request rates for basic, JavaScript, premium, and protected access. Scraping Browser uses elapsed time plus bandwidth. Failed Universal Scraper requests and internal retries are free, while HTTP 404 and 410 are billed, and unused monthly balance does not roll over. (ZenRows pricing documentation, retrieved 2026-07-26)

The comparison assumes one basic billable request per planned URL and does not apply a vendor-specific success rate. ScraperAPI and ZenRows publish different charged-status definitions, so a job with many missing pages can consume different allowances even before access modes are considered. That effect must be calculated from the buyer’s own status distribution, not a benchmark this site does not run. (ScraperAPI credit costs, ZenRows pricing documentation, retrieved 2026-07-26)

What each does that the other does not

ScraperAPI is the only member of this pair whose reviewed credit guide names separate meters for Amazon, Google, Bing, LinkedIn, screenshots, and several protected-site mechanisms. ZenRows is the only member whose reviewed commercial system includes an interactive Scraping Browser with a time-and-bandwidth meter alongside the request API. ScraperAPI therefore exposes more named request classes, while ZenRows provides direct browser control without moving to another vendor account. (ScraperAPI credit costs, ZenRows, ZenRows pricing documentation, retrieved 2026-07-26)

Who should pick which

Pick the vendor whose current plan step covers the forecast with the lower cash floor, using the bands above only for genuinely basic requests. ScraperAPI is the lower published option in four of the seven bands and publishes higher self-serve basic capacity within the shared range; ZenRows is lower in the three bands created when ScraperAPI moves first to a larger plan. Pick by capability instead when browser control, a named target meter, or a protected-result class is mandatory. (ScraperAPI pricing, ScraperAPI credit costs, ZenRows pricing documentation, retrieved 2026-07-26)

ScraperAPI does not publish one universal combination rule for every target and mode or the pay-as-you-go unit rate on eligible plans. ZenRows’ Business 3K price, allowance, and concurrency disagree across reviewed first-party pages. Those gaps are excluded from the 21.5-million shared boundary and should be settled before a higher-volume contract. (ScraperAPI pricing, ScraperAPI credit costs, ZenRows pricing, ZenRows pricing documentation, retrieved 2026-07-26)