Audible API
Audible (audible.com) has 2 public methods: list best sellers and get audiobook details. Each costs 1 credit per completed run (1¢ with pay as you go); failed runs are free.
Unofficial. Not affiliated with or endorsed by Audible.
Methods
2Lists the current bestselling audiobooks of an Audible store (United States, United Kingdom, Canada, Australia, India, Germany, France, Italy, Spain, Brazil or Japan), overall or in one chart category, in chart order with listed prices.
Returns rank, title, authors, narrators, length, average rating, number of ratings, price, currency, release date, Audible link, ASIN
Readaudible.com/list_best_sellersLooks up an audiobook in an Audible store by title (optionally narrowed by author) or by Audible book link, and returns its details, narrators, length, rating, visitor price, series, publisher summary and whether that store's Plus Catalog includes it.
Returns title, subtitle, authors, narrators, length, release date, language, rating, number of ratings, price, currency, Audible Plus status, series, book number, publisher, summary, cover image, Audible link, ASIN
Readaudible.com/get_audiobook