google.keyword_volume

beta 35 credits needs a pack

Google search volume for a keyword in a country and language: average monthly searches, last 12 months, CPC, competition and keyword difficulty.

GET /v1/google/keyword_volume

What you get#

A list of Google results in Onekey's unified shape, in data (an array). An empty array is a normal, successful answer and is charged like any other; a source that reports "nothing found" as an error returns a free 404 not_found instead.

What it costs#

35 credits for a fresh fetch, charged only when it succeeds.
Free when served from cache (0.2 credit for a cached response over 100 KB).
Free if the request is invalid (never charged) or the source fails or reports not found (refunded).

Parameters#

Name	Type	Required	Default	What it is	Constraints
`keyword`	string	yes	(required)	A single keyword or phrase (1-80 characters, at most 10 words)	max 80 chars; must match `[^\r\n,]{1,80}`; trimmed, repeated spaces collapsed, lowercased
`location_name`	string	no	`United States`	Country (or region / city) as an English place name, e.g. United States, Germany	max 100 chars; must match `[A-Za-z0-9 ,.'()-]{2,100}`; trimmed, repeated spaces collapsed
`language_code`	string	no	`en`	Search language, ISO code (en, de, fr ...)	max 8 chars; must match `[a-z]{2}(-[a-z]{2,4})?`; trimmed, lowercased

Request#

curl "https://api.onekey.dev/v1/google/keyword_volume?keyword=running%20shoes" \
  -H "x-api-key: YOUR_API_KEY"

Try it

Add your key to run this call right here. No key? Get one free. The key stays in this tab.

Recorded response#

A real Google response, recorded and returned in Onekey's shape. Fields the platform does not provide are null.

json

{
  "success": true,
  "data": [
    {
      "content": {
        "title": "running shoes"
      },
      "ext": {
        "searchVolume": 201000,
        "monthlySearches": [
          {
            "year": 2026,
            "month": 9,
            "search_volume": 201000
          },
          {
            "year": 2026,
            "month": 8,
            "search_volume": 246000
          },
          {
            "year": 2026,
            "month": 7,
            "search_volume": 201000
          }
        ],
        "cpcUsd": 1.21,
        "competition": 1,
        "competitionLevel": "HIGH",
        "keywordDifficulty": 74,
        "locationCode": 2840,
        "languageCode": "en"
      }
    }
  ],
  "metadata": {
    "platform": "google",
    "endpoint": "keyword_volume",
    "cached": false,
    "stale": false,
    "age_s": 0,
    "fetched_at": "2026-01-01T12:00:00+00:00",
    "credits_charged": 35,
    "request_id": "7f3a9c2e5b1d4c8fa2e6d0b9c4f18e37"
  },
  "error": null
}

Field mapping#

How this endpoint's source fields become Onekey's unified schema. Fields the source lacks come back as null.

Source path	Onekey field	Transform
`keyword`	`content.title`	-
`keyword_info.search_volume`	`ext.searchVolume`	`toNumber`
`keyword_info.monthly_searches`	`ext.monthlySearches`	-
`keyword_info.cpc`	`ext.cpcUsd`	`toNumber`
`keyword_info.competition`	`ext.competition`	`toNumber`
`keyword_info.competition_level`	`ext.competitionLevel`	-
`keyword_properties.keyword_difficulty`	`ext.keywordDifficulty`	`toNumber`
`location_code`	`ext.locationCode`	`toNumber`
`language_code`	`ext.languageCode`	-

Caching and freshness#

Fresh for about 1 day. Repeat calls in that window are served from cache and are free.
Between 1 day and 7 days the cached copy is still served instantly and marked stale: true while Onekey refreshes it in the background.
If the source is down when a refresh is needed, the last copy can be served for up to 7 days more (marked stale).
A "not found" is remembered for 1 hour and is free.
The cache is shared across all customers, which is what keeps repeat calls cheap.

What can go wrong#

Status	Code	What to do
401	`unauthorized`	Check the `x-api-key` header.
402	`insufficient_credits`	Add credits; your balance must cover the price.
404	`not_found`	Unknown endpoint path.
422	`invalid_params`	Fix the parameters using the table above. Free.
429	`rate_limited`	Wait `Retry-After` seconds, then retry.
502	`upstream_error`	The source failed. Refunded; retry with backoff.

See Errors for the full list and retry guidance.

Status: beta (not yet verified against the live source).