Path Parameters
Query Parameters
Code Examples
Response
Keyword Object
Metric Details
volumeScore (0–100)
Estimated relative search volume for the keyword. Derived from iTunes result counts, top app review volumes, and autocomplete position. A score of 80+ indicates a high-traffic keyword.difficulty (0–100)
How hard it is to rank in the top results for this keyword. Factors in average rating of top apps, review count distribution, developer diversity, and market dominance. A score of 70+ means the keyword is dominated by strong incumbents.opportunity (0–100)
A composite score that combines volume, difficulty, and your current rank into a single prioritization metric. High opportunity means the keyword has good search volume, manageable difficulty, and room for your app to climb.trend
Auto-Discovery
When no keyword data exists for an app, the API automatically runs keyword discovery:- Extracts keywords from the app’s title, subtitle, and description
- Adds category-relevant keywords based on the app’s primary category
- Expands with Apple Search Suggestions to find related long-tail keywords
- Queries iTunes Search for up to 30 keywords to determine rankings
- Returns enriched results immediately with all scoring metrics
Auto-discovery runs transparently on the first request for any app. Subsequent requests return stored data instantly. There is no need to pass
discover=1 — this parameter is deprecated and kept only for backward compatibility.
