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Integer to Hex Converter
x402
Integer to Hex Converter is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Converts a non-negative integer into a 0x-prefixed hexadecimal string for use in hex fields or debug payloads.
Price / call$0.001
Success—
StatusUnknown
How this service works
Encode non-negative integers into 0x-hex strings. Call when building simple hex fields or debug payloads from decimal values. Returns 0x-prefixed hex string as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.
Output
A JSON object containing a 0x-prefixed hexadecimal string representation of the supplied non-negative integer (e.g., {"result": "0x1000"} for input 4096). The result is deterministic and computed locally with no external dependencies.
Example use cases
Building EVM transaction hex fields
“I need to encode the integer 21000 as a 0x hex string to put in the gas field of an Ethereum transaction payload — can you convert it?”
Debug payload inspection
“I'm logging a debug payload and need the integer 16777215 formatted as a 0x-prefixed hex string so I can read it in my hex editor.”
Smart contract parameter encoding
“Can you turn the decimal value 1000000 into a 0x hex string? I need it formatted for a smart contract call parameter.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/int-to-hexWhen to prefer
Choose this endpoint when you need a quick, deterministic, no-key-required conversion of a non-negative decimal integer to a 0x-prefixed hex string, especially for constructing blockchain transaction fields, EVM payloads, or debug data. It is pure local math with no RPC calls, market data, or storage side effects, making it ideal for lightweight, high-confidence formatting tasks at minimal cost ($0.001 USDC).
Side effects
- Negative integer input — the endpoint only accepts non-negative integers; negative values will be rejected
- Non-integer input (e.g. float, string) — will return a validation error
- Missing required 'value' field — will return a schema/validation error
- Extremely large integers may exceed supported range depending on implementation limits
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| value | integer | Input field: value. |
Output
Schema · Response
{
"type": "json",
"example": {
"hex": "0xff",
"value": "255",
"schema": "delx/util-int-to-hex/v1"
}
}Tags
x402
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