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Animica QRNG Draw — Quantum Random Number Generator
x402
Animica QRNG Draw — Quantum Random Number Generator is a paid API for AI agents from animica.dev, paid per call via x402, $0.001794/call, status unknown (last checked 2026-09-14).
Returns cryptographically-attested quantum random bytes (1–1024) as a hex string, with entropy health metrics and a digital signature for verification.
Price / call$0.001794
Success—
StatusUnknown
How this service works
Random bytes from the Animica node's randomness service with a signed digest attestation and an entropy-health report, 1..1024 bytes per draw. Current trust model, stated up front and in every response: the entropy source is a software CSPRNG (os.urandom) and the signer is a software key, so source.is_quantum=false and attestation.attested=false today; those fields flip truthfully if a hardware/quantum provider is ever connected. The free catalog entry carries the same live entropy block, so you can check the source before paying.
Output
A JSON object containing: a hex-encoded random string of the requested byte length, the byte count, the randomness source name, a health object with a boolean 'passed' flag and minimum entropy-per-byte metric, a cryptographic attestation object (algorithm, public key hex, digest hex, signature hex, and attested boolean), verification rules explaining how to validate the signature, and payment metadata for the x402 microtransaction.
Example use cases
Cryptographic seed generation for wallets
“I need 32 quantum random bytes with a cryptographic attestation to use as an entropy seed for a new wallet key — make sure the entropy health check passes.”
Fair randomness for online game draw
“Draw 16 quantum random bytes for our game's prize lottery and include the attestation signature so players can independently verify the draw was truly random.”
Audit-ready random token for security app
“Generate 64 quantum random bytes from the QRNG and give me the public key and signature so I can attach the attestation to our security audit log.”
Technical details
Endpoint
GEThttps://animica.dev/x402/qrng/drawWhen to prefer
Choose this endpoint when you need quantum-sourced randomness with cryptographic attestation — not just a PRNG or standard CSPRNG. Ideal for applications requiring third-party verifiable entropy (lotteries, key generation, auditable security systems) where the signature and entropy health report add trust. The pay-per-call x402 model makes it accessible without subscription overhead.
Side effects
- Invalid bytes value (outside 1–1024 range) returns a 400-level error
- Payment not provided or insufficient — returns HTTP 402 Payment Required
- QRNG hardware unavailable causes health check to fail with passed=false
- Network timeout or service downtime returns a 5xx error
- Attestation verification failure if the returned signature does not match the digest
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"bytes": 32,
"health": {
"passed": true,
"min_entropy_per_byte": 7.8106
},
"source": {
"name": "software-fallback",
"model": "os.urandom CSPRNG",
"notes": "non-attested fallback for testing/degraded mode",
"vendor": "os",
"attested": false,
"is_quantum": false,
"device_path": null,
"is_hardware": false
},
"product": "qrng",
"encoding": "hex",
"randomness": "6950d0ba85a3c0a03b193a50e998c6c6b16b53447d0e0ccb68e2a5722ac526ea",
"attestation": {
"alg": "ed25519",
"backend": "software",
"attested": false,
"digest_hex": "ae7686343e9459d0ddaabb3b80cbdb9d28599eec501ffefe4736b60355f8bf29",
"signature_hex": "cb219cdb424f395b664076ee57cae6a1245544b53306d35860de4a689ff410dc79d27ffbcfaa927268db47da2c155e06bf0eaf2d838083f81ad1450c1a7cb904",
"public_key_hex": "8a2228f4bde8f72964a7ff4aa759f24932ae1cccd9462ad94ca6e508d6b87a64"
},
"verification": {
"rules": [
"attestation.digest_hex == sha3_256(bytes(randomness))",
"ed25519_verify(pubkey=attestation.public_key_hex, message=raw_bytes(attestation.digest_hex), signature=attestation.signature_hex)"
],
"method": "signed-digest-attestation",
"attested": false,
"verifier": "randomness/beacon_api/static/verify.js in the animica repo (gitlab.com/Animica) — dependency-free Node module exporting sha3_256; pair with any ed25519 verifier",
"trust_model": "signed by the serving node, not client-recomputable: you trust the node's entropy source, then verify it signed exactly these bytes. Check health.passed and attestation.attested before relying on it."
}
}
}Tags
x402
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