Operate Headless publishing via ButterCMS — search your blog posts, extract custom categories, and map collections with any AI agent.

Access headless content — list items, audit types, and query taxonomies.

Navigate the complete FRED taxonomy: from Money & Banking to Employment to Prices — drill down through categories, discover thousands of series organized by topic, and filter by tags and frequency.

Search 2.4 billion biodiversity records — find any species on Earth with full taxonomy, observation locations, and geographic distribution from the Global Biodiversity Information Facility.

The definitive geographic metadata API for resolving country ISO codes, geographic regions, and global income/lending classifications.