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Delx Nonce Hex
x402
Delx Nonce Hex is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Generates a cryptographically random hex-encoded nonce of a specified byte length for use as idempotency keys or request identifiers.
Price / call$0.001
Success—
StatusUnknown
How this service works
Generate a random hex nonce. Call when you need request nonces for agent idempotency keys. Returns hex nonce and byte length for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.
Output
Returns a JSON object containing the generated hex-encoded nonce string and the byte length used to produce it, with no server-side retention of the value.
Example use cases
Idempotency key for payment request
“I need a 32-byte hex nonce to use as an idempotency key before I submit a payment so it can't be duplicated.”
Unique token for webhook deduplication
“Generate a random 16-byte hex nonce I can attach to an outgoing webhook so my receiver can detect and drop duplicates.”
Nonce for request signing
“Give me a fresh 24-byte hex nonce to include in the signature header for my next signed API call.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/nonce-hexWhen to prefer
Choose this endpoint when you need a lightweight, stateless, no-setup way to generate a random hex nonce for idempotency keys, request deduplication, or signing headers — especially inside an agent pipeline that already uses x402 micropayments on Base and wants a local JSON result with no API keys or retained state.
Side effects
- Invalid or missing bytes field returns a 4xx error
- bytes value too large or negative may cause a validation error
- Network timeout or service unavailability returns a 5xx error
- Payment failure via x402 prevents the call from completing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| bytes | integer | Input field: bytes. |
Output
Schema · Response
{
"type": "json",
"example": {
"hex": "af108c381d9aeaa3",
"bytes": 8,
"schema": "delx/util-nonce-hex/v1"
}
}Tags
x402
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