# Delx Commerce Range List API

> Delx Commerce Range List API 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).

Generates a list of integers over a specified range with a given step, returning count and values array

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/range-list?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-range-list-api-b0a95ff1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OQOQ-g5Mfi9qErrmSwnIm

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-range-list-api-b0a95ff1 -d '<json body>'
```

Example prompt: Give me a list of integers starting at 0, stopping at 20, with a step of 4 — I need the full array and count.

## When to prefer this

Use this endpoint when an AI agent needs a deterministic, verifiable, pay-per-result integer range computation without requiring a code execution environment. Ideal for agents that can pay in USDC on Base or Solana via x402 and need a simple numeric sequence as a building block for iteration, pagination, or axis generation — without signup or authentication overhead.

## Known failure modes

- Missing required parameters (start, stop, step) returns an error
- Step of zero causes infinite loop or division-by-zero error
- Reversed range with positive step returns empty list
- Payment failure via x402 protocol blocks request
- Very large ranges may time out or be rejected

## 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 schema identifier ('delx/util-range-list/v1'), a count of how many integers are in the range, and a 'values' array of the generated integers (e.g. count:4, values:[0,1,2,3] for start=0, stop=4, step=1).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "step": {
   "type": "integer",
   "description": "Input field: step."
  },
  "stop": {
   "type": "integer",
   "description": "Input field: stop."
  },
  "start": {
   "type": "integer",
   "description": "Input field: start."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 4,
  "schema": "delx/util-range-list/v1",
  "values": [
   0,
   1,
   2,
   3
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-range-list-api-b0a95ff1/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)