AI/ML Free tier (up to 5,000 units/month), then $1 per 1,000 units
Google Natural Language API
Cloud-based API that uses machine learning to classify text into categories, useful for determining search intent.
Overview
Google Natural Language API provides powerful text classification capabilities. For content gap analysis, it can categorize keywords into over 700 categories, which can be mapped to search intent (informational, commercial, transactional). The free tier is generous for small to medium keyword lists, making it accessible for most content teams.