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Sindri Miller-Rabin Primality Test
x402
Sindri Miller-Rabin Primality Test is a paid API for AI agents from ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Deterministically tests whether a non-negative integer up to 2^53-1 is prime using the Miller-Rabin algorithm with a proven deterministic witness set.
Price / call$0.01
Success—
StatusUnknown
How this service works
Deterministic primality test using the Miller-Rabin algorithm with a witness set proven deterministic for all integers below 3.3x10^24, safely covering the full JavaScript safe-integer range.
Output
Returns a boolean indicating whether the input integer n is prime (true) or composite/non-prime (false), determined deterministically — no false positives or false negatives for any integer in the range 0 to 2^53-1.
Example use cases
Cryptographic key candidate validation
“I'm generating RSA key material and need to confirm whether 3215031751 is actually a prime number before I use it — can you run a deterministic primality test on it?”
Math homework or puzzle verification
“My puzzle says the answer should be a prime number and I got 982451653 — can you verify whether that's actually prime?”
Large integer primality screening
“I'm building a sieve and want to double-check individual candidates — is 9007199254740881 a prime number?”
Technical details
Endpoint
POSThttps://ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/isPrime?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a provably correct, deterministic primality answer (no probability of error) for integers up to 2^53-1. Unlike probabilistic Miller-Rabin implementations, this uses a witness set mathematically proven to be deterministic up to 3.3×10^24, making it ideal for cryptographic screening, puzzle solving, or any context where a wrong answer is unacceptable. Prefer this over general-purpose math libraries when you want a simple, cheap, pay-per-call API without managing dependencies.
Side effects
- Input n exceeds 2^53-1 (outside JavaScript safe integer range) — may return an error or undefined behavior
- Input n is negative — not supported, expect validation error
- Non-integer or floating-point input — likely rejected with a schema validation error
- Missing required field n — returns a 400 or schema error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| n | number | Non-negative integer to test (0 to 2^53 - 1). |
Tags
x402
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