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ONE Engine ISO Date Extractor
x402
ONE Engine ISO Date Extractor is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Extracts ISO-formatted dates from freeform text using a pay-per-call API secured by x402 micropayments on Base.
Price / call$0.01
Success—
StatusUnknown
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 ISO-formatted dates extracted from the input text, likely as an array of date strings (e.g. YYYY-MM-DD) identified from natural language or mixed-format date expressions in the input.
Example use cases
Date extraction from contract text
“I have a legal contract with lots of date references scattered through it — can you extract all the dates and give them to me as ISO-formatted strings? Here's the text: 'The agreement is effective as of January 15, 2025, with the first payment due on the 1st of March, 2025.'”
Normalize dates in meeting notes
“These meeting notes have dates all over the place in different formats — can you find every date mentioned and normalize them to ISO 8601? Text: 'We discussed the Q1 review on Feb 5th, the next sync is set for March 12, 2025, and the deadline was moved from 3/28 to April 4th.'”
Pull dates from news article
“Can you scan this news article snippet and extract every date it mentions as an ISO-formatted date? Here it is: 'The company was founded in June 2018 and went public on September 22, 2021. Their next earnings call is scheduled for May 8, 2025.'”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/text-extract/iso-dates/t8?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to extract and normalize date expressions from unstructured or semi-structured text into ISO 8601 format, especially in agentic pipelines that process documents, emails, contracts, or notes. It is ideal for lightweight, pay-per-call use cases where you don't want to pay for a full NLP subscription service. At $0.01 USDC per call, it suits high-volume or on-demand document pipelines on Base.
Side effects
- Text exceeds 50,000 character limit — request rejected
- No dates found in text — returns empty array or empty result
- Ambiguous dates (e.g. '01/02/03') may be misinterpreted or omitted
- Payment failure via x402 — 402 response returned before processing
- Malformed request body missing required 'text' field — 400 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| textrequired | string | Text up to 50000 characters |
Output
Schema · Response
{
"type": "object",
"additionalProperties": true
}Tags
x402
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