openapi: 3.0.3
info:
  title: NetworkCalc Binary Converter Subnet Calculator API
  description: NetworkCalc provides RESTful APIs for network and security tools including a subnet calculator, DNS tools, security tools (TLS/SSL inspection, password generation), encoders, and a binary converter. The public APIs return JSON responses over HTTPS and use common HTTP verbs.
  version: '1.9'
  contact:
    name: NetworkCalc
    url: https://networkcalc.com/
servers:
- url: https://networkcalc.com/api
  description: Production
tags:
- name: Subnet Calculator
  description: IPv4 and IPv6 subnet calculations.
paths:
  /ip/{address}:
    get:
      tags:
      - Subnet Calculator
      summary: Subnet calculator (IPv4)
      description: Calculate subnet details for a given IPv4 address with CIDR notation.
      parameters:
      - name: address
        in: path
        required: true
        schema:
          type: string
        description: IPv4 address with CIDR mask, for example 192.168.1.0/24.
      responses:
        '200':
          description: Subnet calculation result.
  /ipv6/{address}:
    get:
      tags:
      - Subnet Calculator
      summary: Subnet calculator (IPv6)
      description: Calculate subnet details for a given IPv6 address with CIDR notation.
      parameters:
      - name: address
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: IPv6 subnet calculation result.