Keyword Ideas API
Generate hundreds of keyword ideas from any seed keyword with volume, CPC, and difficulty scores. Content planning and topic expansion from $0.03/call.
Enter one seed keyword and get back a list of related keyword ideas with search volume, CPC, and difficulty data. Perfect for expanding content calendars and finding long-tail opportunities.
Try it live
Fill in the fields and hit Run to see a real response.
Number of keyword ideas to return (default 50).
{
"ok": true,
"data": [
{
"keyword": "react framework comparison",
"searchVolume": 2400,
"cpc": 1.8,
"difficulty": 38
},
{
"keyword": "best react framework 2026",
"searchVolume": 6600,
"cpc": 2.1,
"difficulty": 42
},
{
"keyword": "react framework for beginners",
"searchVolume": 1900,
"cpc": 0.9,
"difficulty": 28
}
]
}Features
Use cases
Content Calendar Planning
Generate months of blog topics from a single seed keyword, each backed by real search demand data.
Long-Tail Discovery
Uncover low-competition, high-intent keyword variations that are easier to rank for and drive qualified traffic.
Topic Cluster Expansion
Build comprehensive content hubs by discovering every related subtopic around your core pillar pages.
Niche Market Research
Validate new market opportunities by analyzing the breadth and depth of keyword demand in any vertical.
Blog Post Ideation
Stop guessing what to write — generate hundreds of content ideas ranked by search volume and competition.
Quick start
Copy this snippet and start making calls.
const res = await fetch('https://api.yepapi.com/v1/seo/keywords/ideas', {
method: 'POST',
headers: {
'x-api-key': 'YOUR_API_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({
"keyword": "react framework",
"limit": 50,
"location_code": 2840,
"language": "en"
}),
});
const data = await res.json();
console.log(data);Why YepAPI is cheaper
No monthly minimums. No enterprise plans. Just pay per call.
| Provider | Cost / call | Catch |
|---|---|---|
| YepAPI | $0.03 | No minimum. Pay as you go. |
| DataForSEO | $0.05 | $500/mo minimum |
| Semrush API | $0.20 | Enterprise plan |
Frequently asked questions
Enter one seed keyword and get back a list of related keyword ideas with search volume, CPC, and difficulty data. Perfect for expanding content calendars and finding long-tail opportunities.
Each API call costs $0.03. No monthly minimums or subscriptions — you only pay for what you use.
Sign up for a free API key, then send a POST request to /v1/seo/keywords/ideas. Check the code example above for a ready-to-use snippet in JavaScript, cURL, or Python.
YepAPI bundles SEO, AI, and web scraping APIs under one key with no monthly minimums. You get lower per-call pricing, a unified dashboard, and one billing account instead of managing multiple providers.
Ready to integrate?
Get your API key and start making calls in 30 seconds. No credit card required.
More seo apis endpoints
Keywords
$0.15Keyword research API with search volume, CPC, difficulty, competition, and 12-month trends. Up to 100 keywords per request from $0.15/call.
Related Keywords
$0.03Discover semantically related keywords and variations with volume, CPC, and difficulty. Build topical authority from $0.03/call.
Domain Overview
$0.01Domain authority, organic traffic estimates, backlink counts, and top-ranking keywords in a single API call. Competitor intelligence from $0.01/call.