Algorithms

The /algorithms endpoint provides several algorithms to use as parameters. You can input one or two values depending on the algorithm.

GET/v5/algorithms

Parameters

Parameter	Required	Description
method	Yes	The algorithm to use (see available methods below)
value	Yes	The value to use in the algorithm. Must contain at least one character
value2	No	The second value to use if necessary. Must contain at least one character

Available Methods

Method	Description	Requires value2	Limits
anagram	Checks if two strings are anagrams	Yes	Max 1000 chars
bubblesort	Sorts an array of numbers, separated by commas	No	Max 1000 elements
factorial	Calculates the factorial of a number between 0 and 170	No	0–170
gcd	Computes the greatest common divisor of two numbers	Yes	1–100,000
isprime	Checks if a number is prime	No	1–100,000
fibonacci	Calculates a Fibonacci sequence up to a given number	No	0–1000
palindrome	Checks if a string is a palindrome	No	Max 1000 chars
primelist	Returns a list of prime numbers up to a given number	No	2–10,000
primefactors	Returns the list of prime factors of a number	No	1–100,000
reverse	Reverses a string	No	Max 1000 chars
roman	Converts between Roman numerals and numbers (1–3999)	No	1–3999

Response Fields

Field	Type	Description
answer	number|string|boolean|number[]	The algorithm result

Code Examples

curl -X GET \
  "https://api.sylvain.sh/v5/algorithms?method=gcd&value=17&value2=493"

Try It

GEThttps://api.sylvain.sh/v5/algorithms

method*Select...anagrambubblesortfactorialgcdisprimefibonaccipalindromeprimelistprimefactorsreverseroman

value*

value2

Error Handling

If parameters are missing or invalid, the API will return an error:

Error Message	Description
Please provide a valid algorithm (?method={algorithm})	The method parameter is missing or invalid
Invalid input	The value exceeds the method's constraints or limits
Value must be a number	factorial/isprime: value is not numeric
Value must be an integer	factorial/isprime: value is not a whole number
Number must be positive	factorial/isprime: value is negative (or zero for isprime)
Number must be between 0 and 170	factorial: value is out of range
Number must be between 1 and 100000	isprime: value is out of range