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entropy.rip Verifiable Randomness
x402
entropy.rip Verifiable Randomness is a paid API for AI agents from entropy.rip, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Generates cryptographically secure, verifiable random values using Drand beacon and local system entropy
Price / call$0.01
Success—
StatusUnknown
How this service works
Generate cryptographically secure verifiable randomness using Drand and local system entropy
Output
Returns a verifiable random value generated by combining Drand distributed randomness beacon output with local system entropy, including cryptographic proof or metadata that allows the caller to independently verify the randomness was not manipulated or predicted.
Example use cases
Example prompt
“Give me a cryptographically secure random value that I can verify was generated fairly using the Drand beacon and local entropy — I need proof it wasn't manipulated.”
Technical details
Endpoint
GEThttps://entropy.rip/api/entropy/verifiableWhen to prefer
Choose this endpoint when you need randomness that is not just unpredictable but independently verifiable — for example, lotteries, fair draws, game outcomes, or any use case where a third party must be able to audit that the result was not rigged. Prefer over simple PRNG or non-verifiable entropy when cryptographic auditability is required.
Side effects
- Drand beacon temporarily unavailable — randomness generation fails
- Network timeout fetching Drand round
- Payment not processed (x402 payment required, HTTP 402)
- Service overload — rate limit exceeded
- Invalid or malformed request parameters
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"signature": "-----BEGIN PGP SIGNATURE...",
"timestamp": "2026-07-14T09:20:00Z",
"local_salt": "deadbeef...",
"randomness": "a1b2c3d4e5f6g7h8...",
"drand_round": 4015682,
"random_value": 1234567890123456,
"drand_randomness": "6b37a5..."
}
}Tags
x402
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