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Keyword Search Volume & CPC (DataForSEO Labs)
x402
Keyword Search Volume & CPC (DataForSEO Labs) is a paid API for AI agents from keywords.duoleads.com, paid per call via x402, $0.04/call, status healthy (last checked 2026-10-20, last successful call 2026-10-19).
Returns Google search volume, CPC, competition, keyword difficulty, and search intent for up to 20 comma-separated keywords in a single GET request.
Price / call$0.04typically ~$0.040/call
Success100%
StatusHealthy
How this service works
Google search volume, CPC, competition, keyword difficulty and intent for up to 20 comma-separated keywords in one $0.04 GET (DataForSEO Labs). Use when you need monthly search volume for a few keywords in a country. volume = avg monthly searches, cpc in USD, competition 0-1, difficulty 0-100. Keywords without data are listed in missing (still charged). Bad input is free; upstream errors are not charged.
Output
A JSON object with per-keyword data including average monthly search volume, CPC in USD, competition score (0-1), competition level (LOW/MEDIUM/HIGH), keyword difficulty (0-100), search intent (informational/navigational/commercial/transactional), and year-over-year trend percentage. Also includes market metadata (country, language, location code), the data timestamp, any keywords with no data listed under 'missing', and a hint about the bulk keyword-overview endpoint for larger sets.
Example use cases
PPC budget planning for ad campaign
“I'm planning a Google Ads campaign — can you look up the CPC, competition score, and search intent for 'crm software', 'sales automation', and 'lead generation tool' in the United States?”
SEO content prioritization
“I need to decide which blog topics to target — can you get me the keyword difficulty, search volume, and intent for 'intermittent fasting', 'keto diet', and 'low carb recipes' in the UK?”
Market research for new product launch
“We're launching a fitness app in Germany — can you pull monthly search volumes, competition levels, and CPCs for 'fitness tracker', 'workout app', and 'personal trainer' there, using German as the language?”
Technical details
Endpoint
GEThttps://keywords.duoleads.com/v1/search-volume?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need quick, low-cost keyword metrics for a small batch of up to 20 keywords in a specific country. It is the cheapest and fastest option for spot-checking search volume, CPC, difficulty, and intent. Prefer the sibling keyword-overview POST endpoint when you need to process 21-100 keywords at once for the same $0.04 price. Choose this over general SEO platforms when you need programmatic access to DataForSEO Labs data in an agentic workflow.
Side effects
- Keywords with no data are returned in the 'missing' array but still charged
- More than 20 keywords in one request results in an error
- Keywords over 80 characters or more than 10 words are skipped and listed in missing
- Invalid country code or unsupported location returns an error (free)
- Upstream DataForSEO errors are not charged but may occur occasionally
- Malformed input (bad JSON, missing keywords param) returns a free 400
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"total": 2,
"units": "volume: average monthly Google searches; cpc: US dollars; competition: 0-1 (Google Ads); competitionLevel: LOW|MEDIUM|HIGH; difficulty: 0-100; intent: informational|navigational|commercial|transactional; trendYoyPct: % change vs a year ago",
"market": {
"country": "US",
"fallback": false,
"languageCode": "en",
"locationCode": 2840,
"locationName": "United States"
},
"source": "DataForSEO Labs (Google Ads data)",
"missing": [],
"results": [
{
"cpc": 4.63,
"intent": "informational",
"volume": 673000,
"keyword": "phone",
"difficulty": 54,
"competition": 0.76,
"trendYoyPct": 50,
"competitionLevel": "HIGH"
},
{
"cpc": 1.39,
"intent": "transactional",
"volume": 550000,
"keyword": "watch",
"difficulty": 54,
"competition": 0.95,
"trendYoyPct": 22,
"competitionLevel": "HIGH"
}
],
"dataAsOf": "2026-09-16T03:19:59Z",
"see_also": {
"params": [
"keywords",
"locationCode",
"languageCode"
],
"reason": "More than 20 keywords? POST up to 100 to keyword-overview: the same fields in one $0.04 call.",
"endpoint": "https://keywords.duoleads.com/v1/keyword-overview"
},
"request_id": "01KEXAMPLE0000000000000000"
}
}Tags
x402
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