# Delx Commerce — Join Lines Utility

> Delx Commerce — Join Lines Utility 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).

Joins an array of text lines into a single string with a specified separator

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/join-lines?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-join-lines-utility-80d9ad00
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kxiq9lN9sisgTrBq4SQ36

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-join-lines-utility-80d9ad00 -d '<json body>'
```

Example prompt: Join these lines — 'alpha', 'beta', 'gamma' — into a single string separated by newlines.

## When to prefer this

Choose this endpoint when you need a simple, pay-per-call, no-signup text joining utility in an agentic pipeline that pays via USDC on Base or Solana — especially when you want verifiable delivery and an exact fixed cost of $0.001 per call rather than managing your own string-join logic or spinning up infrastructure.

## Known failure modes

- Missing or empty 'lines' array returns an error
- Invalid separator type (non-string) may cause a validation error
- Payment failure via x402 if USDC balance is insufficient
- Malformed request body returns a 4xx error

## 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 joined text string ('text'), the count of lines joined ('count'), and the schema identifier ('schema': 'delx/util-join-lines/v1').

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "lines": {
   "type": "array",
   "description": "Input field: lines."
  },
  "separator": {
   "type": "string",
   "description": "Input field: separator."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "text": "alpha\nbeta\ngamma",
  "count": 3,
  "schema": "delx/util-join-lines/v1"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-join-lines-utility-80d9ad00/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)