ISBNdb

ISBNdb Stats API

Database statistics

Documentation GitHub OpenAPI

Operations 1

GET /stats #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/isbndb-stats-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.2.0
info:
  title: ISBNdb API v2 Stats API
  description: "Definition of ISBNdb.com API v2.\n\n***Note: A 404 Not Found response for an ISBN lookup typically\nindicates that the book information is not yet available in our database.\nHowever, due to frequent updates, there is a high probability that the data will be \nadded shortly, often within a minute or up to 24 hours. We recommend trying your request \nagain after a while, as the information may soon become accessible***\n"
  version: 2.7.0
servers:
- url: https://api2.isbndb.com
  description: API Endpoint
tags:
- name: Stats
paths:
  /stats:
    get:
      operationId: get_app_api_stats_getstats__invoke
      responses:
        '200':
          description: Returns books details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BaseStatsResponse'
      security:
      - ApiKeyAuth: []
      tags:
      - Stats
components:
  schemas:
    BaseStatsResponse:
      required:
      - books
      - authors
      - publishers
      - subjects
      properties:
        books:
          type: integer
        authors:
          type: integer
        publishers:
          type: integer
        subjects:
          type: integer
      type: object
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      name: Authorization
      in: header