isEven (humor)

About isEven (humor)

isEven API is a RESTful API that returns a JSON response indicating whether a given number is even or odd, accessed via a GET request to a numbered endpoint (e.g. /iseven/6/). The free public tier supports numbers from 0 to 999,999, including negative numbers, and includes an advertisement in the response payload.

Paid tiers remove the advertisement and extend the supported number range: a Premium plan at $1.99/month covers 0 to 999,999,999, and an Enterprise plan at $99.99/month covers 0 to 999,999,999,999. All tiers list 24/7 support. An unofficial Python module (PyIsEven) is also available on PyPI for interacting with the API.

Key features

• Determines whether a given number is even or odd via a REST GET endpoint
• Returns JSON responses, e.g. {"iseven": true}
• Free tier supports numbers in the range 0 - 999,999
• Paid tiers extend the supported number range up to 999,999,999,999
• Supports negative numbers
• Unofficial Python module (PyIsEven) available on PyPI

Frequently asked questions