SERP API

Q: Is the SERP API pay-as-you-go?

Yes. The SERP API offers plans or pay-as-you-go at 0.002 USD per request, with a 20 USD minimum top-up, plus 20 free requests per day.

ATTENTION!
You have 20 free requests per day for all kinds of our APIs!

The list of keywords that you can use for a free API test-run - [test, apple, samsung, nokia]

What is the Kwinside SERP API?

The Kwinside SERP API retrieves keyword positions and search-engine rankings, by date, for any domain. Endpoints under /api/v1/serp/keywords/* return the keywords a domain ranks for, how many of its pages sit in TOP-1, TOP-3, TOP-10, TOP-50 and TOP-100, and the competing domains for those keywords. Data spans six languages and is queried over plain REST, authenticated with your API key. Pricing is pay-as-you-go at $0.002 per request or a subscription plan, with free testing at 20 requests per day. Use it to build rank trackers, monitor visibility over time, or pull SERP data into dashboards and reports without manual checking.

Last updated: June 2026

The SERP API returns where a domain ranks — keyword TOP counts by date, the full list of keyword positions, and the keywords competitors rank for. Each call is billed pay-as-you-go at $0.002. (Search engines and best-ranking pages have their own pages — linked below.)

1. Keyword TOP counts by date

GET /api/v1/serp/keywords/tops

This API is used to obtain the number of keywords in TOP-1, TOP-3, TOP-10, TOP-30, TOP-50, and TOP-100 for the required domain and search engine as of the specified date range.

Parameters description:

Parameters	required	Description
site	required	domain name
se	required	search engine ID
dates	required	comma-separated dates: 2019-09-02,2019-09-09
sub	—	with subdomains (available values: 0, 1)
key	required	an API key that you can get in your account

Sample of a URI request:

</>GET

1https://kwinside.com/api/v1/serp/keywords/tops?site=google.com&se=1&sub=1&dates=2026-05-29,2026-06-29&key=example

Response:

{ }200 · JSON

{
  "credits_info": {
    "credits_used": 1,
    "credits_remaining": 19
  },
  "data": {
    "total": null,
    "results": {
      "2026-05-29": {
        "top1": 945884,
        "top3": 2278913,
        "top10": 5335579,
        "top20": 10360934,
        "top30": 13912154,
        "top50": 21754806,
        "top100": 48867202,
        "date": "2026-05-29",
        "rank": 100,
        "rank_worldwide": 177
      },
      "2026-06-29": {
        "top1": 966044,
        "top3": 2323443,
        "top10": 5398932,
        "top20": 10424498,
        "top30": 13975718,
        "top50": 21818370,
        "top100": 48930766,
        "date": "2026-06-29",
        "rank": null,
        "rank_worldwide": null
      }
    },
    "sub": 0
  }
}

2. Keyword positions (full list)

GET /api/v1/serp/keywords/list

This API is used to obtain a list of keywords with corresponding positions for the required domain and search engine as of the specified date range.

Parameters description:

Parameters	required	Description
site	required	domain name
se	required	search engine ID
sort_date	required	available values: asc, desc (default value: desc)
dates	—	comma-separated dates: 2019-09-02,2019-09-09
sort_type	—	available values: asc, desc (default value: desc)
size, offset	—	use these parameters to set the exact count of keywords in response and pagination
top_filter	—	available values : 1, 3, 10, 30, 50, 100 (default value : 100)
kw_filter_type	—	available values: match
kw_filter	—	filter keyword
page_filter_type	—	available values: match
page_filter	—	filter page
sort_by	—	available values: pos, kw, py (default value: pos)
pos_filter	—	available values: all, not_positions, changed, not_changed, moved_up, moved_down, entered, dropped, all_filter (default: all)
add_null	—	available values: true, false
sub	—	with subdomains (available values: 0, 1)
key	required	an API key that you can get in your account

Sample of a URI request:

</>GET

1https://kwinside.com/api/v1/serp/keywords/list?site=google.com&se=1&sort_type=desc&sort_date=1&top_filter=100&sort_by=pos&pos_filter=all&key=example

Response:

{ }200 · JSON

{
  "credits_info": {
    "credits_used": 1,
    "credits_remaining": 19
  },
  "data": {
    "total": 48930766,
    "results": [
      {
        "kw": "city taxis winchester",
        "data": [
          {
            "id": null,
            "page": "websearch?p=ws_settings_location&hl=es-419&opi=89978449",
            "kw": "city taxis winchester",
            "title": null,
            "date": "2026-06-28",
            "pos": 100,
            "prop": null,
            "popularity": 50,
            "searches": 50,
            "site": "google.com",
            "sub": "google.com",
            "time": "2025-08-24 22:33:16",
            "prim": null,
            "https": false,
            "www": false
          }
        ]
      },
      {
        "kw": "portable hemodialysis unit cost",
        "data": [
          {
            "id": null,
            "page": "websearch?p=ws_settings_location&hl=uk&opi=89978449",
            "kw": "portable hemodialysis unit cost",
            "title": null,
            "date": "2026-06-28",
            "pos": 100,
            "prop": null,
            "popularity": 0,
            "searches": 0,
            "site": "google.com",
            "sub": "google.com",
            "time": "2025-08-25 08:50:13",
            "prim": null,
            "https": false,
            "www": false
          }
        ]
      }
    ]
  }
}

Frequently asked questions

Is the SERP API pay-as-you-go?

Yes. The SERP API offers plans or pay-as-you-go at $0.002 per request, with a $20 minimum top-up, plus 20 free requests per day.

What can the SERP API return?

Keyword positions and rankings by date for any domain, plus the keywords your competitors rank for.

Is there a free SERP API tier?

Yes, every account includes 20 free SERP API requests per day.

Search Engine API · Best Pages API · Keyword API · Competitors API