# Delx Commerce CSV Null Normalize

> Delx Commerce CSV Null Normalize is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Normalizes null/empty values in CSV text by replacing custom null tokens with standard empty fields, returning a cleaned CSV string.

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/csv-null-normalize?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-commerce-csv-null-normalize-32471633
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UE7rSgXC_mOqR2wI_3mmN

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-commerce-csv-null-normalize-32471633 -d '<json body>'
```

Example prompt: Take this CSV text and normalize all the null values — replace tokens like 'NULL', 'N/A', and 'none' with actual empty fields: 'id,value\n1,NULL\n2,N/A\n3,none'

## When to prefer this

Choose this endpoint when you need a verifiable, pay-per-call, no-signup CSV null normalization with cryptographic evidence of non-retention. Ideal for agents handling sensitive or regulated tabular data where auditability matters, or for lightweight ETL steps in agent workflows that must avoid persistent data storage. Prefer over self-hosted solutions when you need provable processing guarantees without infrastructure overhead.

## Known failure modes

- Input text exceeds 8192 character limit — request rejected
- null_tokens array exceeds 256 items — request rejected
- Malformed JSON body — 400 error
- Payment not included or invalid USDC payment via x402 — 402 payment required
- Network timeout on large CSV payloads

## How this service works

Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.

## Output

Returns a JSON object containing the normalized CSV string under result.csv, a status field ('pass'), operation metadata ('data_batch:csv_null_normalize'), and an evidence block with a SHA-256 hash of the input, confirmation that no data was retained, and the count of external calls made (always 0).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "maxLength": 8192,
   "description": "Text supplied to CSV Null Normalize; used only for this bounded calculation and processed in memory without retention."
  },
  "null_tokens": {
   "type": "array",
   "items": {
    "type": "string",
    "maxLength": 8192
   },
   "maxItems": 256,
   "description": "Null Tokens supplied to CSV Null Normalize; used only for this bounded calculation and processed in memory without retention."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "csv": "id,value\n1,\n2,"
  },
  "schema": "delx/util-csv-null-normalize/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "0d3f23cb4b83985ebd8f4738f93f8b5fe9ff8a59fe6762aa4eb095a755f5b176",
   "external_calls": 0
  },
  "operation": "data_batch:csv_null_normalize"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-csv-null-normalize-32471633/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from commerce.delx.ai](https://www.zero.xyz/host/commerce.delx.ai/llms.txt)