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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, $0.0015/call, status unknown (last checked 2026-10-02).
Extracts and normalizes ISO-formatted dates from unstructured text up to 50,000 characters
Price / call$0.0015
Success—
StatusUnknown
How this service works
Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.
Output
A JSON object containing the ISO-formatted dates extracted from the input text, representing all identified date expressions normalized to ISO 8601 format.
Example use cases
Contract date extraction for legal review
“Pull out every date mentioned in this contract and return them as ISO dates: 'This Agreement is entered into on the first day of January 2024 and shall remain in effect until the thirtieth of June 2026, subject to the renewal clause dated March 15, 2025.'”
Meeting notes date normalization
“I have meeting notes with a bunch of informally written dates — can you extract them all as ISO 8601 dates? Here's the text: 'We met on the 4th of July, planned a follow-up for next Monday Aug 12th, and set a deadline for end of Q3 2024.'”
News article timeline extraction
“Extract and standardize all the dates from this news article excerpt into ISO format: 'The earthquake struck on September 8, officials declared a state of emergency two days later on the tenth, and reconstruction funding was approved by late October 2023.'”
Technical details
Endpoint
POSThttps://one-search.one-engine.workers.dev/v3/text-extract/iso-dates/t4?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to extract and normalize dates from free-form or unstructured text at low cost ($0.0015/call) without running a full NLP pipeline. It is especially useful for agents processing documents, emails, contracts, or news articles where dates appear in varied human-written formats and need to be returned as standardized ISO strings. Prefer this over general-purpose LLM date parsing when cost efficiency and deterministic structured output are priorities.
Side effects
- Text exceeds 50,000 character limit — request rejected
- No recognizable date expressions found in text — empty result returned
- Ambiguous date formats may be parsed incorrectly or omitted
- Payment failure via x402 protocol — 402 response before processing
- Malformed or missing 'text' field in request body — validation 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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