# ISBNdb API API

> ISBNdb API API on Apizie: 10 endpoints (Gets author details, Search authors, Gets book details, Search books, …) returned as clean JSON through one API key. Send your own provider key in the x-upstream-key header. Call it over REST at https://zieapi.vercel.app/v1/open-data:isbndb/{endpoint} or from Claude, ChatGPT and Cursor through the Apizie MCP server. Free plan: 1,000 requests a month.

- Project key: `open-data:isbndb`
- Category: Open Data
- Status: byok
- Source: https://isbndb.com
- Page: https://zieapi.vercel.app/api/open-data/isbndb
- OpenAPI: https://zieapi.vercel.app/api/open-data/isbndb/openapi.json

Definition of ISBNdb.com API

## Endpoints

### Gets author details
`GET https://zieapi.vercel.app/v1/open-data:isbndb/get-author-name` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| name | string | yes | The name of an author in the Author's database |
| page | string | no | The number of page to retrieve, please note the API will not return more than 10,000 results no matter how you paginate them |
| pageSize | string | no | How many items should be returned per page, maximum of 1,000 |

### Search authors
`GET https://zieapi.vercel.app/v1/open-data:isbndb/get-authors-query` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| pageSize | string | no | How many items should be returned per page, maximum of 1,000 |
| query | string | yes | A string to search for in the Author’s database |
| page | string | no | The number of page to retrieve, please note the API will not return more than 10,000 results no matter how you paginate them |

### Gets book details
`GET https://zieapi.vercel.app/v1/open-data:isbndb/get-book-isbn` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| isbn | string | yes | an ISBN 10 or ISBN 13 in the Books database |

### Search books
`GET https://zieapi.vercel.app/v1/open-data:isbndb/get-books-query` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| query | string | yes | A string to search for in the Book’s database |
| page | string | no | The number of page to retrieve, please note the API will not return more than 10,000 results no matter how you paginate them |
| author | string | no | Filters the query results by author |
| pageSize | string | no | How many items should be returned per page, maximum of 1,000 |

### Gets publisher details
`GET https://zieapi.vercel.app/v1/open-data:isbndb/get-publisher-name` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| name | string | yes | The name of a publisher in the Publisher's database |
| page | string | no | The number of page to retrieve, please note the API will not return more than 10,000 results no matter how you paginate them |
| pageSize | string | no | How many items should be returned per page, maximum of 1,000 |

### Search publishers
`GET https://zieapi.vercel.app/v1/open-data:isbndb/get-publishers-query` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| pageSize | string | no | How many items should be returned per page, maximum of 1,000 |
| query | string | yes | A string to search for in the Publisher’s database |
| page | string | no | The number of page to retrieve, please note the API will not return more than 10,000 results no matter how you paginate them |

### Search all ISBNDB databases
`GET https://zieapi.vercel.app/v1/open-data:isbndb/get-search` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| q | string | no | A query string compatible with ElasticSearch 6 |

### Gets status on the ISBNDB Database
`GET https://zieapi.vercel.app/v1/open-data:isbndb/get-stats` (byok)

### Gets subject details
`GET https://zieapi.vercel.app/v1/open-data:isbndb/get-subject-name` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| name | string | yes | A subject in the Subject's database |

### Search subjects
`GET https://zieapi.vercel.app/v1/open-data:isbndb/get-subjects-query` (byok)

| Parameter | Type | Required | Description |
|---|---|---|---|
| pageSize | string | no | How many items should be returned per page, maximum of 1,000 |
| query | string | yes | A string to search for in the Subject’s database |
| page | string | no | The number of page to retrieve, please note the API will not return more than 10,000 results no matter how you paginate them |

## Example
```
curl "https://zieapi.vercel.app/v1/open-data:isbndb/get-author-name" \
  -H "x-api-key: $APIZIE_KEY" \
  -H "x-upstream-key: $PROVIDER_KEY"
```

## FAQ

### How do I call the ISBNdb API API?
Create a free Apizie key, then send GET https://zieapi.vercel.app/v1/open-data:isbndb/get-author-name with the header x-api-key. Every endpoint returns { project, data, timestamp }.

### Is the ISBNdb API API free on Apizie?
Yes. The Free plan includes 1,000 requests a month at 100 requests a minute, no credit card. ISBNdb API itself also needs your own key from isbndb.com.

### Can AI agents use the ISBNdb API API?
Yes. Add the Apizie MCP server (https://zieapi.vercel.app/mcp) to Claude, ChatGPT, Cursor or VS Code, then ask in plain language. The agent calls run_scraper with project key open-data:isbndb.

### What is the status of the ISBNdb API API?
Needs your own provider key (bring your own key)