Numbers API
Simple REST endpoints to analyze numbers and list concepts in JSON.
Base URL
/api/v1
Format
UTF-8 JSON
Limit
100 req/hour per IP
CORS
Enabled
What you get
API v1 returns mathematical properties, representations, divisors and concept collections without authentication.
Getting started
Analyze a number
Query a specific number and get primality, Fibonacci, divisors, binary, Roman numerals and more.
Limit fields
Trim the payload with ?fields=prime,fibonacci,square or any individual property.
List concepts
Use /api/v1/concepts to discover concept endpoints such as prime, square or composite.
Quick examples
https://webnumeri.com/api/v1/42 https://webnumeri.com/api/v1/42?fields=prime,fibonacci,square https://webnumeri.com/api/v1/range/1/25?filter=prime https://webnumeri.com/api/v1/concepts https://webnumeri.com/api/v1/concepts/square?limit=12