Scraping API PricesSerper.dev vs Zenserp
The prepaid-pack and monthly-plan bands where Serper.dev and Zenserp trade the lower purchase.
Serper.dev
Zenserp
The difference
Both paths, one ruler
Serper.dev
Successes you want
100,000 standard searches
Your stated workload. Every vendor on this site is priced against this same number.
- × 1
Attempts you are billed for
100,000 standard searches
Serper.dev does not bill failed fetches, so failures cost nothing here.
- × 1
What the meter counts
100,000 credits
One attempt is one billed unit for this workload.
- =
One-time prepaid cash
$375.00 prepaid
Standard. Cheapest of every eligible purchase option, not the first plan that fits.
Bars share one linear scale across the 3 counted stages, so a multiplier shows as length. Units differ by stage and are labelled. Cash is not on that scale.
Zenserp
Successes you want
100,000 standard searches
Your stated workload. Every vendor on this site is priced against this same number.
- × 1
Attempts you are billed for
100,000 standard searches
Zenserp does not bill failed fetches, so failures cost nothing here.
- × 1
What the meter counts
100,000 searchs
One attempt is one billed unit for this workload.
- =
Cash per month
$149.99 /mo
Medium. Cheapest of every eligible purchase option, not the first plan that fits.
Bars share one linear scale across the 3 counted stages, so a multiplier shows as length. Units differ by stage and are labelled. Cash is not on that scale.
Both ladders share one linear scale, topping out at 100,000 counted units, so a longer bar means more billed work rather than a different drawing.
These figures are for one stated workload: 100,000 standard search calls with one default-depth result set per call. The comparison below names where the answer changes.
Decision boundary: the evaluation answer and the recurring answer differ. A new Serper.dev account includes 2,500 one-time free queries, while Zenserp renews 50 free searches each month. After the Serper.dev trial is excluded, Zenserp has the lower paid purchase through 25,000 monthly searches at $49.99 versus Serper.dev’s $50 pack. Serper.dev is lower from 25,001 through 50,000, Zenserp from 50,001 through 250,000, Serper.dev from 250,001 through 500,000, Zenserp from 500,001 through one million, and Serper.dev is the only one with a published self-serve pack covering 1,000,001 through 2.5 million. (Serper.dev pricing, Zenserp pricing, retrieved 2026-07-26)
The flips are caused by different purchase shapes. Serper.dev sells top-up packs that remain valid for six months: $50 for 50,000, $375 for 500,000, $1,250 for 2.5 million, and $3,750 for 12.5 million. Zenserp sells monthly steps of $49.99 for 25,000, $149.99 for 100,000, $299.99 for 250,000, $499.99 for 500,000, and $899.99 for one million. A buyer with uneven demand can carry a Serper.dev pack across months, while a Zenserp allowance belongs to its monthly plan. (Serper.dev pricing, Zenserp pricing, retrieved 2026-07-26)
Billing models side by side
Serper.dev deducts one prepaid credit for one successful Google search response. Failed requests do not consume credits. The product publishes separate Google result types including Search, Images, News, Maps, Places, Videos, Shopping, Scholar, Patents, and Autocomplete, with country and language controls. Purchased credits expire six months after purchase, and the plan’s query-per-second allowance grows with larger packs. (Serper.dev, retrieved 2026-07-26)
Zenserp deducts one monthly search for one successful SERP response. Invalid requests do not affect usage. Its published engine and result-type list includes Google Search, Images, Maps, News, Trends, Shopping, reverse-image search, YouTube, Bing, Yandex, and DuckDuckGo. All listed SERP types are included in the plan rather than assigned public endpoint multipliers. Larger plans add batch, keyword, support, and queue features. (Zenserp, Zenserp pricing, Zenserp documentation, retrieved 2026-07-26)
Both vendors count successful response units rather than individual result rows. That makes the plan ladder comparable for one API call at a time, but it does not prove equal result depth, schema, location behavior, or returned features. This page compares the published debit and purchase floor only. (Serper.dev, Zenserp pricing, retrieved 2026-07-26)
What each provides that the other does not
Serper.dev is the only one of this pair with a six-month prepaid pack model and published Google Patents, Scholar, Places, and Autocomplete result types in the reviewed source. Its first account also receives 2,500 queries without a card, which is larger than Zenserp’s monthly free allowance but does not renew. (Serper.dev, retrieved 2026-07-26)
Zenserp is the only one of this pair whose reviewed product catalog includes Bing, Yandex, and DuckDuckGo alongside Google result types. It also publishes a recurring free plan, monthly cancellation or plan changes, batch access on larger plans, and a 20 percent annual subscription discount. (Zenserp pricing, Zenserp documentation, retrieved 2026-07-26)
Who should pick which
Pick Serper.dev for the first 2,500 evaluation queries, for demand that can consume a six-month pack before expiry, or in its lower purchase bands. Pick Zenserp for a continuing workload no larger than 50 searches a month, for its lower monthly bands, or when non-Google engines are required. At every plan edge, compare the cash purchase and the time available to use it, not only the full-utilization unit rate. (Serper.dev pricing, Zenserp pricing, retrieved 2026-07-26)
The unverified items are whether multiple Serper.dev packs can be combined at the same unit rate, whether Zenserp unused searches roll over, and detailed downstream caching or redistribution terms for either vendor. Those gaps can change procurement fit but are not assigned a price. (Serper.dev, Zenserp pricing, Zenserp documentation, retrieved 2026-07-26)