# Newsletter Action-Marker Line Extraction

> Newsletter Action-Marker Line Extraction is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).

Extracts action-marker lines (e.g. TODO items with deadlines) from newsletter Markdown or plain text content

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-writing-newsletter-action-lines?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/newsletter-action-marker-line-extraction-630ef588
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bp2JKOz7DuYZvI2mil6fL

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 newsletter-action-marker-line-extraction-630ef588 -d '<json body>'
```

Example prompt: Can you extract all the action-marker lines from this newsletter draft? Here's the Markdown: '## Introduction
Great news this week.
TODO: review the supplied document by 2026-10-10.

## Updates
More updates here.
TODO: send feedback by 2026-11-01.'

## When to prefer this

Choose this endpoint when you need deterministic, rule-based extraction of action-marker lines (TODO items, deadline reminders) specifically from newsletter-format Markdown or plain text. It is purpose-built for the newsletter writing sector and guarantees no generative prose or hallucinated content — ideal for automated pipelines where reproducibility matters and the input is newsletter-structured content up to 20,000 characters.

## Known failure modes

- Text exceeds 20,000 character limit — request is rejected or truncated
- No action-marker lines present in submitted text — returns empty result
- Malformed or non-Markdown input may reduce extraction accuracy
- Service unavailable or payment not processed — no result returned

## How this service works

Newsletter - Action-marker line extraction: Action-marker line extraction for Newsletter. Supplied Markdown or plain text, up to 20,000 characters. Deterministic processing and document templates; no generative prose or fact checking. One of 25 profiles or calculations across 20 shared operations in this sector. 0.01 USDC includes one bounded action-marker line extraction deliverable.

## Output

A bounded, deterministic extraction of all action-marker lines (e.g. TODO items with associated dates or deadlines) found within the submitted newsletter Markdown or plain text, delivered as a structured list of matching lines without generative prose or fabricated content.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "default": "## Introduction\nExample 1 content.\nTODO: review the supplied document by 2026-10-10.\n\n## Updates\nExample 2 content.\nTODO: review the supplied document by 2026-10-10.\n\n## Call to action\nExample 3 content.\nTODO: review the supplied document by 2026-10-10.",
   "maxLength": 20000
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/newsletter-action-marker-line-extraction-630ef588/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)