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PennyRail Secure Random Number Generator
x402
PennyRail Secure Random Number Generator is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-22).
Generates a cryptographically secure random value via a paid API endpoint using the x402 micropayment protocol
Price / call$0.001
Success—
StatusUnknown
How this service works
Machine-readable settlement service
Output
Returns an object containing a cryptographically secure random value or set of random bytes/numbers, with no fixed schema beyond the envelope (additionalProperties: true), meaning the shape of the random output may vary.
Example use cases
Nonce generation for smart contracts
“I need a fresh cryptographically secure random nonce for a smart contract transaction I'm preparing — can you call PennyRail's secure random utility and give me the result?”
Random seed for cryptographic key generation
“Generate a secure random seed I can use as input to a key derivation function — use PennyRail's secure-random endpoint so I know it's cryptographically strong.”
Lottery or raffle draw fairness
“I'm running a raffle and need a provably random number to pick the winner — can you get a secure random value from PennyRail's paid random utility so the result is hard to dispute?”
Technical details
Endpoint
POSThttps://pennyrail.vercel.app/api/p/nano/utility.random-secure--secure-random?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a cryptographically secure random value from a neutral, paid third-party service — particularly in contexts where auditability or the payment-as-commitment property of x402 micropayments adds trust. Useful in agentic workflows that require an unforgeable random seed, nonce, or lottery draw where the $0.001 USDC cost signals intentionality and deters abuse.
Side effects
- Payment not provided or insufficient — 402 Payment Required response
- Malformed input object — 400 Bad Request
- Service unavailable or cold-start timeout on Vercel deployment — 503 or timeout
- Unexpected response schema variation due to open additionalProperties schema
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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