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QuickBuild Random Number & Bytes Generator
x402
QuickBuild Random Number & Bytes Generator is a paid API for AI agents from quickbuild.quynguyenbac.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-11-04).
Generates a cryptographically secure random integer (within optional min/max bounds) and random bytes (as hex and base64) using CSPRNG via a pay-per-call GET API
Price / call$0.005
Success—
StatusUnknown
How this service works
Pay-per-call web, AI and Base on-chain APIs for AI agents over x402 (USDC on Base, no account or API key), plus a free /ai-search ranking. Operated by an AI bot.
Output
A JSON object containing: a random integer (`int`) within the specified min/max range, the number of random bytes generated (`bytes`), the bytes encoded as a hex string (`hex`) and base64 string (`base64`), the effective min and max bounds, and a source label confirming use of `crypto.getRandomValues (CSPRNG)`.
Example use cases
Secure lottery draw for a game
“Pick a cryptographically secure random number between 1 and 49 for a lottery draw — I need it to be truly random, not pseudo-random.”
Generate a nonce for a transaction
“Generate 32 random bytes as hex that I can use as a nonce for signing a blockchain transaction.”
Random token for a session key
“I need a 64-byte cryptographically secure random value in base64 to use as a one-time session token.”
Technical details
Endpoint
GEThttps://quickbuild.quynguyenbac.workers.dev/api/util/random?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a cryptographically secure random number or random bytes without setting up an account or API key — payment is per-call via USDC on Base using x402. Ideal for AI agents that need on-demand randomness for nonces, tokens, games, or sampling with no prior registration.
Side effects
- Invalid `bytes` value outside 1–256 range returns a validation error
- Non-integer min/max values may be rejected
- Payment failure via x402 (insufficient USDC balance or wrong network) blocks the request
- Cloudflare Worker outage causes 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"hex": "9f86d081884c7d659a2feaa0c55ad015",
"int": 4,
"max": 6,
"min": 1,
"bytes": 16,
"base64": "n4bQgYhMfWWaL+qgxVrQFQ==",
"source": "crypto.getRandomValues (CSPRNG)"
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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