ISBNdb

aid: isbndb
name: ISBNdb
description: ISBNdb is the world's largest book database REST API providing access to metadata for over 110 million books
  and publications. Search by ISBN (ISBN-10 or ISBN-13), title, author, publisher, or subject to retrieve up to 19 data points
  per book including cover images, publication dates, descriptions, and real-time pricing. The API supports bulk lookups of
  up to 1,000 ISBNs per request on eligible plans.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/isbndb/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
tags:
- Books
- ISBN
- Publishing
- Metadata
- Library
- Bibliography
apis:
- aid: isbndb:isbndb-api
  name: ISBNdb API
  description: RESTful API for searching and retrieving book metadata by ISBN, title, author, publisher, and subject from
    the world's largest book database with 110M+ entries.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://isbndb.com/api-documentation
  baseURL: https://api2.isbndb.com
  tags:
  - Books
  - ISBN
  - Publishing
  - Metadata
  - Search
  properties:
  - type: Documentation
    url: https://isbndb.com/api-documentation
  - type: OpenAPI
    url: https://api2.isbndb.com/doc.json
  - type: Pricing
    url: https://isbndb.com/isbn-database
  contact:
  - FN: ISBNdb Support
    url: https://isbndb.com/faq
    email: ''
common:
- type: Website
  url: https://isbndb.com
- type: Documentation
  url: https://isbndb.com/api-documentation
- type: Pricing
  url: https://isbndb.com/isbn-database
- type: Blog
  url: https://isbndb.com/blog/
- type: X
  url: https://x.com/ISBNdb_com
- type: Plans
  url: plans/isbndb-plans-pricing.yml
- type: RateLimits
  url: rate-limits/isbndb-rate-limits.yml
- type: FinOps
  url: finops/isbndb-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com