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Playground demo key · api.reefapi.com
post/books/v1/book_detail1 credit

merged book record by ISBN-10/13 or OLID (work OL..W / edition OL..M): title/authors/covers/subjects/description/pages/publishers/languages/editions/identifiers/ratings+distribution/reading-log; queried ISBN always injected

Working example
Parameters
⌘↵
request preview
curl -X POST https://api.reefapi.com/books/v1/book_detail \
  -H "x-api-key: $REEF_KEY" \
  -H "content-type: application/json" \
  -d '{"id":"9780439023528"}'

Hit Send (or ⌘↵) to run this endpoint live.