Kickbox Account API

Account balance and metadata.

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/kickbox-account-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 email required.

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

OpenAPI Specification

kickbox-account-api-openapi.yml Raw ↑
openapi: 3.1.0
info:
  title: Kickbox Email Verification Account API
  description: 'REST API for verifying the deliverability of email addresses with Kickbox.

    Endpoint paths and authentication are derived from the official Kickbox PHP

    SDK at https://github.com/kickboxio/kickbox-php (see HttpClient.php and

    Api/Kickbox.php), which is the canonical client for the production API.

    '
  version: 2.0.0
  contact:
    name: Kickbox
    url: https://kickbox.com/
    email: help@kickbox.com
servers:
- url: https://api.kickbox.com
  description: Kickbox production API.
- url: https://open.kickbox.io
  description: Kickbox Open (disposable lookup) API.
security:
- TokenAuth: []
tags:
- name: Account
  description: Account balance and metadata.
paths:
  /v2/balance:
    get:
      tags:
      - Account
      summary: Get the account verification balance
      operationId: getBalance
      responses:
        '200':
          description: Remaining verification credits.
          content:
            application/json:
              schema:
                type: object
                properties:
                  balance:
                    type: integer
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  responses:
    Unauthorized:
      description: Missing or invalid API key.
      content:
        application/json:
          schema:
            type: object
            properties:
              success:
                type: boolean
              message:
                type: string
  securitySchemes:
    TokenAuth:
      type: http
      scheme: bearer
      bearerFormat: token
      description: 'Kickbox API key sent in the Authorization header in the form

        `Authorization: token YOUR_API_KEY`.

        '