# Integer to Hex Converter

> 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.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/int-to-hex
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/integer-to-hex-converter-13c9b0fc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_huhPWTRXI4mi6kMzrhrE3

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability integer-to-hex-converter-13c9b0fc -d '<json body>'
```

Example prompt: Convert the integer 4096 to a 0x-prefixed hex string for me.

## When to prefer this

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).

## Known failure modes

- 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

## 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.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "value": {
   "type": "integer",
   "description": "Input field: value."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "hex": "0xff",
  "value": "255",
  "schema": "delx/util-int-to-hex/v1"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/integer-to-hex-converter-13c9b0fc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)