# Close API > Travel times from every US census block to nearby points of interest, by walking, biking, and public transit — a metered, read-only JSON API over the Close database. ## Documentation Sets - [Abridged documentation](https://docs.close.city/llms-small.txt): a compact version of the documentation for Close API, with non-essential content removed - [Complete documentation](https://docs.close.city/llms-full.txt): the full documentation for Close API ## Notes - The complete documentation includes all content from the official documentation - The content is automatically generated from the same source as the official documentation