# Unix Seconds Timestamp Validator

> Unix Seconds Timestamp Validator is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-02).

Validates whether a given string represents a 10-digit Unix timestamp in seconds

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/check-date-unix-s?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/unix-seconds-timestamp-validator-e8750f28
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_0ICU6x4QNAT655CTieSzU

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 unix-seconds-timestamp-validator-e8750f28 -d '<json body>'
```

Example prompt: Can you check whether the string '1704067200' is a valid 10-digit Unix seconds timestamp?

## When to prefer this

Use this endpoint when you need a deterministic, no-LLM check to confirm a string is a 10-digit Unix seconds timestamp and you cannot use the free sandbox endpoint at /v1/sandbox/check-date-unix-s. Prefer the unpaid sandbox version first; use this paid endpoint only when the sandbox is unavailable or rate-limited.

## Known failure modes

- Input string is empty or exceeds maxLength of 20000 characters
- String contains non-numeric or unexpected characters that don't match Unix seconds format
- Payment of $0.003 USDC not provided or x402 payment protocol not followed, resulting in 402 response
- Network timeout or service unavailability returning a 5xx error

## How this service works

Call when an agent needs whether a string is 10-digit Unix seconds. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/check-date-unix-s first.

## Output

A boolean or structured result indicating whether the input string conforms to the 10-digit Unix seconds timestamp format, without any storage or side effects.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "data": {
   "description": "JSON value for schema-check SKUs. Omit it on string checks such as email or IBAN."
  },
  "value": {
   "type": "string",
   "examples": [
    "1700000000"
   ],
   "maxLength": 20000,
   "minLength": 1,
   "description": "Value to check. The route description names the format: email, phone, IBAN, postal code, VAT, national id, or similar."
  },
  "schema": {
   "description": "JSON Schema document for schema-check SKUs. Omit it on string checks."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/unix-seconds-timestamp-validator-e8750f28/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)