API features

ISBN and title search

Use an ISBN for direct lookup or search by title keywords when the identifier is unavailable.

Publishing metadata in one response

Receive the title, ISBN, publisher, publication date, page count, and binding as structured fields.

Author and translator details

Enrich book records with author and translator information when it is present in the source data.

Covers and introductions

Display the cover image, book introduction, and author introduction when available.

Catalog and bookstore enrichment

Populate product pages, internal catalogs, library records, and educational reading lists.

Pagination for keyword results

Browse title-search matches with predictable page controls and total result counts.

API Document

HTTP Protocol:HTTPS

HTTP Method:GET

HTTP Endpoint:https://api.gugudata.io/v1/text/isbn

Response Type:application/json; charset=utf-8

DEMO Endpoint:https://api.gugudata.io/v1/text/isbn/demo

Live Demo:Try Interactive Demo

Postman Collection:Run in Postman

API Request Parameters

Name	Type	Is Required	Default Value	Remark
appkey	string	true	YOUR_APPKEY	API key used to authenticate the request.
isbn	string	false		ISBN used for an exact book lookup.
keywords	string	false		Book-title keywords used for partial matching.
pageIndex	integer	false	1	One-based page number used for title searches.
pageSize	integer	false	10	Number of title-search results to return per page.

API Response Parameters

Name	Type	Remark
Title	string	Book title.
Author	string	Author name.
ISBN	string	ISBN number of the book.
Publisher	string	Publisher name.
PublisherDateTime	string	Publication date or year.
PageNumber	integer	Number of pages.
Binding	string	Binding type.
BriefIntroduction	string	Short introduction or summary.
CoverImage	string	Book cover image URL.

API Response Status Codes

Status Code	Explanation of Status Code	Remarks
200	Request processed successfully.	Some endpoints expose a separate application-level status field in the response body, such as `dataStatus.statusCode`.
400	Invalid request parameters or request format.	Check required fields, data types, and request body format.
401	Missing or unknown application key.	Provide a valid `appkey` with the request.
403	The application key is recognized but access is not allowed.	The key may be expired, inactive, or not permitted for the requested API.
429	Request rate or trial usage limit exceeded.	Reduce request frequency and retry with backoff. If a trial allowance is exhausted, check Trial Keys for remaining requests and subscribe to continue.
500	Internal service error.	Retry later or contact support if the error persists.
503	Upstream service unavailable.	Retry later; the requested upstream dependency is temporarily unavailable.

Remote MCP

AI client access

Use this API through GuGuData Remote MCP

Connect your AI client once, authorize in the browser, and the client can use the GuGuData API tools available to your account. You do not need to paste an appkey into the MCP client.

Endpoint https://mcp.gugudata.io/mcp

Open MCP Guide

Generic MCP configuration

{
  "mcpServers": {
    "gugudata": {
      "url": "https://mcp.gugudata.io/mcp",
      "transportType": "streamable-http"
    }
  }
}

Code Snippets

Run in Postman Open LLM Page

Frequently asked questions

Common questions about request limits, trials, renewal, and cancellation.

What does the 5 requests per second limit mean?

It is a request-rate limit, not a concurrency allowance. Keep your request rate at or below 5 per second. If the service returns a rate-limit response, reduce the frequency and retry with backoff.

Is total paid usage limited?

There is no total request cap during an active paid subscription and no usage-based overage charge.

How does the free trial work?

Each account can receive a limited trial key. Requests are shared across APIs in the same category. Check Trial Keys for the exact allowance and remaining requests.

How do renewal and cancellation work?

The plan renews annually until canceled. Manage or cancel the renewal from Dashboard → Orders & Billing. Access continues through the paid period after cancellation. See the Terms of Service for the current refund policy. If the billing portal is unavailable, contact support.

Technical support

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