# Delx Commerce — Integer String Validator

> Delx Commerce — Integer String Validator 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).

Validates whether a given text string represents a valid integer value

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/is-int-str?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-integer-string-validator-32fa9e90
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_l-wVNt_GJIirHHCSyjvqE

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-integer-string-validator-32fa9e90 -d '<json body>'
```

Example prompt: Can you check whether the string '42' is a valid integer?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call, no-signup check on whether a text value is a valid integer string — especially useful in agent pipelines where you want verifiable, auditable validation without deploying your own logic or maintaining infrastructure. Ideal for micro-validation steps in agentic workflows paid in USDC via x402.

## Known failure modes

- Missing or empty 'text' field in request body — likely returns an error or unexpected result
- Non-string input type may cause parsing failure
- Network or payment failure via x402 protocol before result is delivered
- Edge cases like very large numbers, leading zeros, or special formats (e.g. hex) may return unexpected validity judgments

## 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 with the original input text, a boolean 'valid' field indicating whether the text is a valid integer string, and a schema identifier ('delx/util-is-int-str/v1') for verifiable provenance.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "description": "Input field: text."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "text": "42",
  "valid": true,
  "schema": "delx/util-is-int-str/v1"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-integer-string-validator-32fa9e90/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)