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SignalDesk AI – Is Prime Check
x402
SignalDesk AI – Is Prime Check is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).
Checks whether a given non-negative integer (up to 1,000,000,000) is a prime number, returning a boolean result.
Price / call$0.001
Success—
StatusUnknown
How this service works
Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.
Output
A JSON object with a single boolean field `prime` — true if the submitted integer is prime, false otherwise. No additional detail (factors, nearest prime, etc.) is returned.
Example use cases
Primality check for cryptography key
“I'm picking a modulus for a small RSA demo — can you verify if 104729 is actually a prime number?”
Math homework number validation
“My student worksheet says 561 should be prime — can you double-check whether that's true or false?”
Large number primality test
“Is 999999937 a prime number? I need to confirm before using it as a hash table size.”
Technical details
Endpoint
POSThttps://x402-agent.kariguetoazul.workers.dev/api/math/is-prime?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs a quick, cheap, authoritative primality check on a single integer up to one billion, particularly in contexts where calling a local math library is not an option or when operating within an x402 micropayment workflow. It is not suitable for batch primality testing, numbers above 1,000,000,000, or when factorization or nearest-prime information is also needed.
Side effects
- Input integer exceeds maximum of 1,000,000,000 — rejected with validation error
- Negative integer submitted — rejected (minimum is 0)
- Non-integer value submitted — schema validation failure
- Payment not attached or insufficient — HTTP 402 response requiring x402 payment of $0.001 USDC
- Service quota or rate limit reached — bounded execution may reject the request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| n | integer | Integer. |
Output
Schema · Response
{
"type": "json",
"example": {
"prime": true
}
}Tags
x402
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