SERPens vs SerpApi
The incumbent, with twenty verticals and snake_case.
Response fields
| Field | SERPens | SerpApi |
|---|---|---|
| Organic results | Yes | Yes |
| AI Overview | Yes | No |
| Knowledge panel | Yes | Yes |
| People Also Ask | Yes | Yes |
| Related searches | Yes | Yes |
| Sitelinks | Yes | Yes |
| Result source field | Yes | No |
| Pagination flags | Yes | Yes |
On our side, sitelinks, knowledge panel, People Also Ask and related searches arrive with the AI Overview endpoint, not with the plain organic call — one request returns all four alongside the overview and the results.
Compared against serpapi.com, checked 2026-08-26. Blank cells mean the vendor did not document the field, not that it is missing.
Price
| Provider | Per 1,000 | Notes |
|---|---|---|
| SERPens | $1.16 | 100 free calls a month, no card |
| SerpApi | $25.00 | Starter tier, $25 for 1,000; falls to $3.75 per 1,000 at the million-call tier |
Prices move. Both figures carry the date they were checked, and neither is a quote.
Surface
| Provider | Documented verticals | Response style |
|---|---|---|
| SERPens | 2 | camelCase |
| SerpApi | 20 | snake_case |
We cover two surfaces: web search, and web search with the AI Overview. That is fewer than most providers here, and it is a choice rather than a roadmap gap — one surface measured continuously and published in public is worth more than twenty nobody checks.
When SerpApi is the better choice
SerpApi is the most complete product in this market and the most expensive at small volume. It also does not bill failed or cached searches, which is a genuinely better metering policy than ours. Choose it if you need breadth of verticals; choose us if you need web search and AI Overview cheaply and can live with two endpoints.
What you get here that you do not there
A dedicated AI Overview endpoint returning Google's answer and the sources it credits, which SerpApi does not document. And a public measurement record: 4,185 queries run weekly through the same endpoint, with 50.8% carrying an overview as of 2026-W36.
Nobody else in this table publishes what their API returns. Ours is written out in full.
curl --request GET \
--url 'https://serpens.p.rapidapi.com/api/v1/search_ai_overview?q=best%20search%20apis&gl=us&hl=en&format=json' \
--header 'x-rapidapi-host: serpens.p.rapidapi.com' \
--header 'x-rapidapi-key: YOUR_KEY'Try it against your current provider
Free tier, no card. Point a staging build at the new base URL and diff the bodies.