# ONE Engine ISO Date Extractor (T5)

> ONE Engine ISO Date Extractor (T5) is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0025/call, status unknown (last checked 2026-10-02).

Extracts and normalizes ISO-format dates from arbitrary text up to 50,000 characters using a T5 model.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-extract/iso-dates/t5?utm_source=zero.xyz
- Price: $0.0025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/one-engine-iso-date-extractor-t5-58481370
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vQTMmCLK47c8zSvF5ltaj

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 one-engine-iso-date-extractor-t5-58481370 -d '<json body>'
```

Example prompt: Can you pull out all the ISO-format dates from this contract text? Here's the text: 'The agreement was signed on March 5th, 2023 and expires on the first of January 2025, with a renewal window from December 15 to December 31, 2024.'

## When to prefer this

Choose this endpoint when you need lightweight, low-cost date extraction from unstructured text and want a per-call pay-as-you-go model via x402 on Base. Ideal for agents processing documents, emails, contracts, or articles where dates need to be normalized to ISO format without spinning up a full NLP pipeline. Best suited for single-document or per-call workflows rather than large batch jobs.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected
- No recognizable date expressions found in text — empty result returned
- Ambiguous dates (e.g. '05/06/07') may be misinterpreted or omitted
- Payment failure via x402 results in 402 response before processing
- Malformed or non-UTF8 text may cause parsing errors

## How this service works

Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.

## Output

Returns a JSON object containing the extracted ISO-format dates found in the input text, likely as an array of date strings (e.g. '2024-03-05', '2025-01-01') identified by the T5 model from natural language date expressions.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "text": {
   "type": "string",
   "description": "Text up to 50000 characters"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-iso-date-extractor-t5-58481370/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from one-search.one-engine.workers.dev](https://www.zero.xyz/host/one-search.one-engine.workers.dev/llms.txt)