▣ STANDARD DATA

Search Books & Authors API

What it does

Book Search API provides access to a catalog of books and authors. It allows you to search for authors, search and filter books, retrieve detailed information for a specific book, and find books similar to a given title.

Use it when you need book catalog data for reading applications, book discovery and search, recommendation features, library tools, catalog enrichment, or internal knowledge systems.

Search Authors lets you find authors by name with optional pagination using number and offset. Search Books supports free-text search and filtering by ISBN, OCLC number, author, genre, rating, publication year, result grouping, sorting, and pagination.

Get Book Information retrieves detailed information for a specific book, including its title, subtitle, cover image, external identifiers, authors, publication details, description, and rating. Find Similar Books returns a list of books related to a specified book, with an optional number parameter to control the number of results.

The API returns structured JSON responses that can be used directly in search interfaces, book discovery workflows, recommendation systems, and catalog enrichment pipelines.

▣ ENDPOINT 01 / 04

GET

Search Authors

https://api.eu.apyhub.com/skycraft/big-book-api/search-authors

QUICKSTART

GUIDE

Quickstart

Fetch a book result by passing the required query parameters in the URL.

curl -X GET "https://api.eu.apyhub.com/skycraft/big-book-api/search-authors?name=Morgan%20Housel&number=10&offset=0" \
  -H "apy-token: $APY_TOKEN"

What you'll get back

Returns a JSON object containing a list of matching authors.

{
  "authors": [
    {
      "id": 22313234,
      "name": "Morgan Housel"
    }
  ]
}

TRY ITLIVE · 20 ATOMS

API key

Loading your default key…

The full key is used to call the gateway and stays in this tab — never sent to orbit or saved.

About this endpoint

What it does

Searches the author catalogue by name and returns the matching authors with their ids.

Query Parameter(s)

Attribute	Type	Mandatory	Description
name	String	No	Author name to search for.
number	Number	No	Number of results to return.
offset	Number	No	Number of results to skip before starting the returned page.

Response

Returns a JSON object containing an authors array. Each author object includes the author's unique id and name.

Field	Type	Description
authors	Array	List of matching authors.
authors[].id	Number	Unique identifier of the author.
authors[].name	String	Name of the author.

Query parameters

Name

Type

Description

nameOPTIONAL

string

—

numberOPTIONAL

number

—

offsetOPTIONAL

number

—

▣ ENDPOINT 02 / 04

GET

Search Books

https://api.eu.apyhub.com/skycraft/big-book-api/search-books

QUICKSTART

GUIDE

Quickstart

Search the book catalog with a few common query filters.

curl -X GET "https://api.eu.apyhub.com/skycraft/big-book-api/search-books?query=books%20about%20wizards&sort=rating&number=10" \
  -H "apy-token: $APY_TOKEN"

What you'll get back

Returns a JSON object containing the matching books along with pagination and rating information.

{
  "available": 6260,
  "number": 10,
  "offset": 0,
  "books": [
    [
      {
        "id": 13043102,
        "title": "Crimson Tide Madness",
        "subtitle": "Great Eras in Alabama Football (Golden Ages of College Sports)",
        "image": "https://covers.openlibrary.org/b/id/1942923-M.jpg",
        "authors": [
          {
            "id": 13043088,
            "name": "Wilton Sharpe"
          }
        ],
        "rating": {
          "average": 1
        }
      }
    ]
  ],
  "expires": 1790771703776
}

TRY ITLIVE · 20 ATOMS

API key

Loading your default key…

The full key is used to call the gateway and stays in this tab — never sent to orbit or saved.

About this endpoint

What it does

Searches books by ISBN, OCLC, free-text query, genre, author, rating and publication year, with paging and sort options. All filters are query parameters.

Query Parameter(s)

Attribute	Type	Mandatory	Description
isbn	String	No	ISBN to search by.
oclc	String	No	OCLC number to search by.
sort	String	No	Sort field for the search results.
query	String	No	Search text query.
genres	String	No	Genre filter.
number	Number	No	Number of results to return.
offset	Number	No	Result offset for pagination.
authors	String	No	Author filter.
max-rating	Number	No	Maximum rating filter.
min-rating	Number	No	Minimum rating filter.
group-results	Boolean	No	Whether to group results.
sort-direction	String	No	Sort direction.
latest-publish-year	Number	No	Latest publish year filter.
earliest-publish-year	Number	No	Earliest publish year filter.

Response

Returns a JSON object containing the total number of available books, pagination details, and a list of matching books. Each book includes its ID, title, optional subtitle and image, author information, and rating.

Field	Type	Description
available	Number	Total number of books available for the search.
number	Number	Number of books returned in the response.
offset	Number	Number of results skipped before the returned results.
books	Array	List of result groups. Each group is an array of book objects.
books[][].id	Number	Unique identifier of the book.
books[][].title	String	Title of the book.
books[][].subtitle	String	Subtitle, when available.
books[][].image	String	Cover image URL, when available.
books[][].authors	Array	Authors of the book.
books[][].rating	Object	Rating information.
books[].rating.average	Number	Average rating of the book.
expires	Number	Expiration timestamp for the response.

Query parameters

Name

Type

Description

isbnOPTIONAL

string

—

oclcOPTIONAL

string

—

sortOPTIONAL

string

—

queryOPTIONAL

string

—

genresOPTIONAL

string

—

numberOPTIONAL

number

—

offsetOPTIONAL

number

—

authorsOPTIONAL

string

—

max-ratingOPTIONAL

number

—

min-ratingOPTIONAL

number

—

group-resultsOPTIONAL

boolean

—

sort-directionOPTIONAL

string

—

latest-publish-yearOPTIONAL

number

—

earliest-publish-yearOPTIONAL

number

—

▣ ENDPOINT 03 / 04

GET

Get Book Information

https://api.eu.apyhub.com/skycraft/big-book-api/:id

QUICKSTART

GUIDE

Quickstart

Fetch a book by its id by putting the path parameter in the URL.

curl -X GET "https://api.eu.apyhub.com/skycraft/big-book-api/:id" \
  -H "apy-token: $APY_TOKEN"

What you'll get back

Returns a JSON object containing detailed information about the requested book.

{
  "id": 13043102,
  "title": "Crimson Tide Madness",
  "subtitle": "Great Eras in Alabama Football (Golden Ages of College Sports)",
  "image": "https://covers.openlibrary.org/b/id/1942923-M.jpg",
  "identifiers": {
    "open_library_id": "OL5821286W",
    "isbn_10": "1581825803",
    "isbn_13": "1581825803"
  },
  "authors": [
    {
      "id": 13043088,
      "name": "Wilton Sharpe"
    }
  ],
  "publish_date": 2007,
  "number_of_pages": 272,
  "description": "A Tradition of Greatness Twelve national championships, twenty-one SEC championships, twenty College Football Hall of Famers, and the most legendary coach in college football history.",
  "rating": {
    "average": 1
  }
}

TRY ITLIVE · 20 ATOMS

API key

Loading your default key…

The full key is used to call the gateway and stays in this tab — never sent to orbit or saved.

About this endpoint

What it does

Retrieves information for a specific book identified by its id.

Path Parameter(s)

Attribute	Type	Mandatory	Description
id	Number	Yes	The book identifier.

Response

Returns a JSON object containing detailed information about the requested book, including its title, subtitle, cover image, identifiers, authors, publication date, page count, description, and rating.

Field	Type	Description
id	Number	Unique identifier of the book.
title	String	Title of the book.
subtitle	String	Subtitle of the book, when available.
image	String	URL of the book cover image.
identifiers	Object	External identifiers associated with the book.
identifiers.open_library_id	String	Open Library identifier of the book.
identifiers.isbn_10	String	ISBN-10 identifier of the book.
identifiers.isbn_13	String	ISBN-13 identifier of the book.
authors	Array	List of authors associated with the book.
authors[].id	Number	Unique identifier of the author.
authors[].name	String	Name of the author.
publish_date	Number	Year in which the book was published.
number_of_pages	Number	Number of pages in the book.
description	String	Description or summary of the book.
rating	Object	Rating information for the book.
rating.average	Number	Average rating of the book.

Path parameters

Name

Type

Description

idREQUIRED

string

—

▣ ENDPOINT 04 / 04

GET

Find Similar Books

https://api.eu.apyhub.com/skycraft/big-book-api/:id/similar

QUICKSTART

GUIDE

Quickstart

Fetch the book by its required path id, with the optional number query parameter if needed.

curl -X GET "https://api.eu.apyhub.com/skycraft/big-book-api/:id/similar" \
  -H "apy-token: $APY_TOKEN"

What you'll get back

Returns a JSON object containing books similar to the requested book.

{
  "similar_books": [
    {
      "id": 20920732,
      "title": "Always Alabama",
      "subtitle": "A History of Crimson Tide Football",
      "image": "https://covers.openlibrary.org/b/id/475562-M.jpg"
    },
    {
      "id": 20107962,
      "title": "Crimson Nation",
      "subtitle": "The Shaping of the South's Most Dominant Football Team",
      "image": "https://covers.openlibrary.org/b/id/750106-M.jpg"
    }
  ]
}

TRY ITLIVE · 20 ATOMS

API key

Loading your default key…

The full key is used to call the gateway and stays in this tab — never sent to orbit or saved.

About this endpoint

What it does

Finds books similar to the one identified by the id path parameter. Use the optional number query parameter to control how many are returned.

Path Parameter(s)

Attribute	Type	Mandatory	Description
id	Number	Yes	Book identifier.

Query Parameter(s)

Attribute	Type	Mandatory	Description
number	Number	No	Number of similar books to return.

Response

Returns a JSON object containing a list of books similar to the requested book. Each similar book includes its unique ID, title, and cover image, with an optional subtitle when available.

Field	Type	Description
similar_books	Array	List of books similar to the requested book.
similar_books[].id	Number	Unique identifier of the similar book.
similar_books[].title	String	Title of the similar book.
similar_books[].subtitle	String	Subtitle of the similar book, when available.
similar_books[].image	String	URL of the similar book's cover image.

Path parameters

Name

Type

Description

idREQUIRED

string

—

Query parameters

Name

Type

Description

numberOPTIONAL

number

—

▣ COMMON ERRORS

Errors any endpoint can return

400bad_request

Required parameter missing or malformed body.

401unauthorized

API key missing, revoked, or not authorized for this service.

429rate_limited

Your plan's per-second rate exceeded. Retry with exponential backoff.

503upstream_busy

Backend temporarily unavailable. Try again in a few seconds.

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