# Delx Chunk List

> Delx Chunk List 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).

Splits an array into fixed-size batches, returning the chunked groups and total count.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/chunk-list
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-chunk-list-1d57d7a7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LQeCS-C_Rf2HSdVk5aDio

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-chunk-list-1d57d7a7 -d '<json body>'
```

Example prompt: Can you split this list of 200 product IDs into batches of 25 so I can POST them in chunks without hitting the payload limit?

## When to prefer this

Choose this endpoint when you need a simple, stateless, zero-dependency utility to partition an array into fixed-size batches before making batch API calls — especially in agentic pipelines where you want a deterministic, auditable split without writing custom code. It is ideal when operating under payload ceilings or rate limits and you want a reliable chunk count returned alongside the data.

## Known failure modes

- Missing 'items' field returns a validation error
- Missing or non-integer 'size' field returns a validation error
- Size of zero or negative integer causes an error
- Payment not fulfilled via x402 returns a 402 response
- Empty items array may return a single empty chunk or zero chunks

## How this service works

Chunk a list into fixed-size batches. Call when you plan batch POSTs under payload ceilings. Returns chunks array and count 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 a 'chunks' array (an array of arrays, each sub-array being one batch of items up to the specified size) and a 'count' integer indicating the total number of chunks produced.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "size": {
   "type": "integer",
   "description": "Input field: size."
  },
  "items": {
   "type": "array",
   "description": "Input field: items."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "size": 2,
  "count": 3,
  "chunks": [
   [
    1,
    2
   ],
   [
    3,
    4
   ],
   [
    5
   ]
  ],
  "schema": "delx/util-chunk-list/v1"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-chunk-list-1d57d7a7/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)