Semrush Keywords API
Semrush keyword research for any term: monthly search volume, CPC, competition, keyword difficulty, plus related keywords and question keywords.
$4.95/1k req, pay per request, no subscription.
{"keyword": "best running shoes","database": "us","searchVolume": 74000,"cpcUsd": 1.12,"competition": 0.34,"keywordDifficulty": 62,"referringDomainsMedian": 48,"organicResultsCount": 8420000,... 3 more fields}
Pricing
Semrush Keywords API pricing
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Get Semrush keywords in one request
This sample shows 20 of 21 fields. See every field
{
"found": true,
"data": {
"items": [
{
"keyword": "best running shoes",
"database": "us",
"searchVolume": 74000,
"cpcUsd": 1.12,
"competition": 0.34,
"keywordDifficulty": 62,
"referringDomainsMedian": 48,
"organicResultsCount": 8420000,
"intents": [
"commercial",
"informational"
],
"relatedKeywords": [
{
"keyword": "best running shoes for men",
"searchVolume": 33100,
"keywordDifficulty": 58
},
{
"keyword": "best running shoes for women",
"searchVolume": 27100,
"keywordDifficulty": 57
},
{
"keyword": "best running shoes for flat feet",
"searchVolume": 9900,
"keywordDifficulty": 49
}
],
"questions": [
{
"keyword": "what are the best running shoes for beginners",
"searchVolume": 1300,
"keywordDifficulty": 38
},
{
"keyword": "how often should you replace running shoes",
"searchVolume": 2400,
"keywordDifficulty": 33
}
]
}
]
}
}Full parameter and response reference - every field, type, and example for this endpoint.
Reference
One request, one response shape.
Every field you send and every field you get back, each with a real example.
Last verified 2026-10-31 · uptime and latency measured over 30d
Request body
JSON, posted to this endpoint.
- keywordstring
best running shoes
The search term to research (e.g. "best running shoes").
- databasestring
us
Two-letter Semrush regional database that scopes the metrics (e.g. us, uk, de).
Response
JSON, one example value per field.
Keyword-research records: search volume, CPC, competition, keyword difficulty, plus related keywords and question keywords for the researched term. Populated whenever the provider has data for the entity.
- competitionnumber
0.34
Paid-search competition density, 0 to 1, or null when Semrush has no data for the keyword.
- cpcUsdnumber
1.12
Average cost per click in USD, or null when Semrush has no data for the keyword.
- databasestring
us
Two-letter Semrush regional database the metrics are scoped to.
- intentsstring[]
Search-intent labels for the keyword (e.g. commercial, informational). Populated whenever the provider has data for the entity.
- keywordstring
best running shoes
The researched search term. Populated whenever the provider has data for the entity.
- keywordDifficultyinteger
62
Semrush Keyword Difficulty, 0 to 100, or null when Semrush has no data for the keyword.
- organicResultsCountinteger
8420000
Number of organic results Google returns for the keyword, or null when Semrush has no data for the keyword.
- referringDomainsMedianinteger
48
Median number of referring domains across the ranking pages, or null when Semrush has no data for the keyword.
- searchVolumeinteger
74000
Average monthly search volume in the selected database, or null when Semrush has no data for the keyword.
Question-phrased keyword variations with their own volume and difficulty. Populated whenever the provider has data for the entity.
- keywordstring
what are the best running shoes for beginners
The question keyword.
- keywordDifficultyinteger
38
Semrush Keyword Difficulty for the question keyword, 0 to 100, or null when Semrush has no data for the keyword.
- searchVolumeinteger
1300
Average monthly search volume for the question keyword, or null when Semrush has no data for the keyword.
Related keyword suggestions with their own volume and difficulty. Populated whenever the provider has data for the entity.
- keywordstring
best running shoes for men
The related keyword.
- keywordDifficultyinteger
58
Semrush Keyword Difficulty for the related keyword, 0 to 100, or null when Semrush has no data for the keyword.
- searchVolumeinteger
33100
Average monthly search volume for the related keyword, or null when Semrush has no data for the keyword.
- foundboolean
true
- reason"not_found"
Present only when `found` is false, and says why there is no result. `not_found`: the source states the target does not exist, or returned nothing for it. A `found: false` answer is a successful call, not an error, and `costUsd` is what it actually cost.
FAQ
About the Semrush Keywords API
The AnyAPI Semrush Keywords API returns Semrush keywords data as normalized JSON from one POST call to /v1/run/semrush.keywords. Semrush keyword research for any term: monthly search volume, CPC, competition, keyword difficulty, plus related keywords and question keywords. AnyAPI returns one normalized schema whichever source serves it. It costs from $4.95 per 1,000 requests, in US dollars with no subscription and no monthly minimum. Over the last 30 days, 99.9% of Semrush keywords calls through AnyAPI succeeded, with a median response time of 6.7 seconds across 1,763 measured calls.