# Delx EVM Hex Data Normalize

> Delx EVM Hex Data Normalize is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Normalizes arbitrary input data into a well-formed EVM hex string, returning the normalized hex value and its byte count.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/evm-hex-data-normalize
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-evm-hex-data-normalize-cbf90024
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WGQUQ8fJ6LC7lC8lXdxuV

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 delx-evm-hex-data-normalize-cbf90024 -d '<json body>'
```

Example prompt: Normalize this raw data into a properly formatted EVM hex string and tell me the byte count: '0xabcd'.

## When to prefer this

Choose this endpoint when you need a reliable, auditable, stateless utility to normalize EVM hex data before submitting on-chain transactions, estimating gas, or passing calldata to smart contracts. Prefer it when you need both normalization and byte-count in a single call with a verifiable evidence trail (SHA256 of input, no retention guarantee).

## Known failure modes

- Input data exceeds 8192 character limit — request rejected
- Malformed input that cannot be interpreted as hex — error response
- Empty or null data field — may return error or zero-byte result
- Non-string input type — schema validation failure

## How this service works

EVM Hex Data Normalize: EVM Hex Data Normalize normalizes even-length EVM hex data while preserving byte boundaries from bounded caller-supplied values without an external provider. Call EVM Hex Data Normalize before signing, submitting, replacing, or accepting an EVM/Base transaction assembled from caller-owned data. Returns normalized transaction evidence, calculated budget or shape findings, and a fail-closed preflight status for EVM Hex Data Normalize as versioned deterministic JSON. Price:…

## Output

Returns a JSON object with the normalized hex string (0x-prefixed), the byte count of the data, the operation name, processing status ('pass'), and an evidence block confirming no data retention, no external calls, and the SHA256 hash of the input.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "type": "string",
   "maxLength": 8192,
   "description": "Data supplied to EVM Hex Data Normalize; used only for this bounded calculation and processed in memory without retention."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "data": "0xabcd00",
   "byte_count": 3
  },
  "schema": "delx/util-evm-hex-data-normalize/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "9944dc2e2c04677c19c2d73f2496d153a58e6d3177f2db401b47c86a5fb08dca",
   "external_calls": 0
  },
  "operation": "evm_preflight:evm_hex_data_normalize"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-evm-hex-data-normalize-cbf90024/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)