isEven API

isevenapi.xyz

A RESTful API that returns whether a given number is even or odd as JSON.

The isEven API API uses none authentication; has freemium pricing; offers a free tier (Free public tier, numbers 0 - 999,999 with advertisements). Verified 2026-07-12 with per-field source links.

Health & Science Verified 2026-07-12 medium confidence

Base URL

https://api.isevenapi.xyz/api/

isevenapi.xyz ↗

Auth

none

isevenapi.xyz ↗

Free tier

Free public tier, numbers 0 - 999,999 with advertisements

isevenapi.xyz ↗

Pricing model

freemium

isevenapi.xyz ↗

Pricing

Public: Free (range 0-999,999, includes ads); Premium: $1.99/month (range 0-999,999,999, no ads); Enterprise: $99.99/month (range 0-999,999,999,999, no ads)

isevenapi.xyz ↗

Rate limits

not documented null

no source

OpenAPI spec

not documented null

no source

MCP server

not documented null

no source