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Blackwood State Random Number Generator (x402)
x402
Blackwood State Random Number Generator (x402) is a paid API for AI agents from x402-gateway.blackwoodstate8.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-23).
Generates cryptographically secure random values — integers, dice rolls, coin flips, UUIDs, or random bytes — via Workers Web Crypto CSPRNG, paid per call via x402.
Price / call$0.005
Success—
StatusUnknown
How this service works
Use when you need a random number generator, dice rolls, a coin flip, a uuid or random bytes that no one can predict. Do not use for verifiable on-chain randomness (VRF) or reproducible seeded sequences. Returns JSON with cryptographically secure random values: integers in a range, dice rolls, coin flips, UUIDs or hex bytes, from the Workers Web Crypto CSPRNG for 0.005 USDC per call. Typical response time 500 ms (p95). Category: Infrastructure.
Output
Returns a JSON object containing the requested kind of random values (array of results), an optional sum (for numeric types), the generation timestamp, and the source/method used (Workers Web Crypto CSPRNG). May also include a 'next' suggestion for chaining calls.
Example use cases
Secure random token generation
“Generate 32 random bytes as a hex string — I need something cryptographically unpredictable for a session nonce.”
Tabletop game dice roll
“Roll 4 twenty-sided dice for me and tell me the individual results and the total.”
Random winner selection
“Pick 5 random integers between 1 and 500 — I need them to be truly unpredictable for a raffle draw.”
Technical details
Endpoint
POSThttps://x402-gateway.blackwoodstate8.workers.dev/v1/random?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need unpredictable, cryptographically secure random values for security tokens, nonces, game mechanics, or random selection — especially in agent workflows where reproducibility is undesirable. Prefer this over seeded PRNGs when you cannot afford predictability. Do not use if you need verifiable on-chain randomness (VRF) or reproducible sequences from a seed.
Side effects
- Invalid 'kind' enum value — returns validation error
- 'count' outside 1–100 range — returns schema error
- 'length' outside 1–256 for bytes — returns schema error
- 'sides' outside 2–1000 for dice — returns schema error
- Payment not included or insufficient — returns 402 Payment Required
- Service timeout beyond 500ms p95 — rare but possible under load
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"sum": 5,
"kind": "dice",
"source": "crypto.getRandomValues (Cloudflare Workers CSPRNG)",
"values": [
4,
1
],
"generatedAt": "2026-10-17T16:48:06.750Z"
}
}Tags
x402
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