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Animica Random Commit (DRNG Commit-Reveal)
x402
Animica Random Commit (DRNG Commit-Reveal) is a paid API for AI agents from animica.dev, paid per call via x402, $0.001794/call, status unknown (last checked 2026-09-15).
Creates a cryptographic commit-reveal commitment using a decentralized random number generator, returning a commit ID and proof that a secret random draw has occurred without disclosing the result yet.
Price / call$0.001794
Success—
StatusUnknown
How this service works
Commit now, reveal to everyone later: the paid call returns a commitment sha3_256(secret||salt) and a commit id; GET /x402/random/reveal/{commit_id} is FREE, public and idempotent, and discloses the secret, the salt, the raw draw and the node's attestation so anyone — not just the buyer — can check the commitment. Reveal delay 0..604800s. For games, sealed-bid rounds and auditable draws. Trust model, stated plainly: the commitment binds the outcome from the moment you publish it, and the reveal proves the secret came from a node-signed draw — it does NOT prove the operator discarded no draws before committing, so publish the commitment to your players before the round.
Output
Returns a JSON object containing: a unique commit_id, the cryptographic commitment hash, the algorithm used, a reveal_after Unix timestamp, a reveal_url where the secret will be disclosed after the delay, the source and health status, an attestation proving the draw occurred without disclosing it, and verification/payment metadata. The actual random result is NOT disclosed at this stage.
Example use cases
Provably fair raffle draw
“I'm running a raffle and need to commit to a random draw before I announce winners — create a commit on Animica with memo 'raffle-event-sept-2024' and my request ID 'raffle-42', locked for 600 seconds so nobody can claim I changed the result.”
Betting round seed commitment
“Before I open betting on my next round, commit a secret random seed on Animica and tie it to my request ID 'bet-round-99' with memo 'sports-bet-round-99', revealable immediately after the round closes.”
On-chain randomness anchor
“I need a cryptographic randomness commitment I can reference in a smart contract — use Animica to commit a random draw with memo 'nft-mint-drop-001' and request ID 'drop-session-7', no reveal delay needed.”
Technical details
Endpoint
POSThttps://animica.dev/x402/random/commitWhen to prefer
Choose this endpoint when you need a provably fair, cryptographically attested commit-reveal randomness scheme — particularly for lotteries, games, raffles, or betting rounds where you must prove the random outcome was sealed before participants acted. Prefer this over a simple random number generator when auditability, tamper-resistance, or time-delayed reveal are required. It is especially suitable when you want to bind the commitment to a specific round or bet ID via the request_id field.
Side effects
- Invalid memo length (over 256 chars) — returns 400 Bad Request
- reveal_after_seconds out of range (>604800) — returns 400 or validation error
- Payment not included or insufficient — returns 402 Payment Required
- Service unavailable on animica.dev — returns 503
- Malformed request body — returns 400 with schema error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| memo | string | up to 256 printable ASCII chars, published verbatim at reveal (bind the commitment to your round/bet id) |
| request_id | string | your own tag; mixed into the DRNG seed that produced the secret |
| reveal_after_seconds | integer | seconds until the free reveal opens, 0..604800 (default 0 = revealable immediately) |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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