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LogicNodes Random From Block
x402
LogicNodes Random From Block is a paid API for AI agents from logicnodes.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-28).
Generates one or more verifiable random numbers derived from a specified EVM blockchain block hash, using an optional salt for uniqueness.
Price / call$0.002
Success—
StatusUnknown
How this service works
Exact answers for AI agents: 40+ tools for EVM chains and Aptos, gas on 14 chains, never a guess. Free tier; pay per call in USDC (x402) on 13 networks.
Output
Returns a JSON object with ok: true, the tool name 'random_from_block', and an array of random integers derived from the specified block's hash, bounded by the max value provided and influenced by the optional salt. Results are deterministic for a given block+salt+max combination, making them auditable and verifiable.
Example use cases
NFT raffle winner selection
“I need to pick 3 random winners from 500 NFT holders — can you generate 3 random numbers between 1 and 500 using the latest Ethereum block (eip155:1) with salt 'nft-raffle-2024' to make it verifiable?”
Blockchain game random loot drop
“For my on-chain game, generate 10 random numbers between 1 and 100 using block 19800000 on Base (eip155:8453) with salt 'loot-drop-session-42' so the randomness is tied to the chain.”
Auditable random team assignment
“I'm running a DAO hackathon and need to randomly assign 8 participants to 2 teams — give me 8 random numbers between 1 and 2 from the current Polygon block (eip155:137) with salt 'hackathon-teams-Q3'.”
Technical details
Endpoint
POSThttps://logicnodes.io/paid/v1/tools/random_from_block?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need blockchain-anchored, verifiable, tamper-resistant randomness tied to a specific block — ideal for smart contract lotteries, NFT raffles, game mechanics, or any scenario where the source of randomness must be auditable on-chain. Prefer it over off-chain random generators when provability and trustlessness matter, and over on-chain VRF solutions when you need a fast, cheap, off-chain computation that references real block data.
Side effects
- Invalid or unrecognized chain format (chain names are rejected; must use CAIP-2 like eip155:8453 or bare numeric chain ID)
- Block not found or too recent (block hasn't been confirmed yet)
- max value out of range (must be between 2 and 1,000,000)
- count out of range (must be between 1 and 100)
- salt exceeds 200 characters
- Payment failure via x402 protocol
- Network or RPC unavailability for the requested chain
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| max | integer | |
| salt | string | |
| block | string | |
| chain | string | EVM CAIP-2 chain id such as eip155:8453, or a bare chain id number as a string. Chain names are refused. |
| count | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"tool": "random_from_block"
}
}Tags
x402
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