# Case Study Action-Marker Line Extraction

> Case Study 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 2026-10-15).

Extracts action-marker lines (e.g. TODO items, deadlines, review flags) from case study Markdown or plain text documents

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-writing-case-study-action-lines?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/case-study-action-marker-line-extraction-1487eb27
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TyE9t_KVoarnLgz1Lybsz

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 case-study-action-marker-line-extraction-1487eb27 -d '<json body>'
```

Example prompt: Can you scan this case study document and pull out all the action-marker lines like TODOs and review deadlines? Here's the text: '## Challenge
We identified a major bottleneck.
TODO: review with stakeholders by 2026-10-10.
## Results
Revenue improved 30%.
TODO: validate figures with finance by 2026-11-01.'

## When to prefer this

Choose this endpoint when you need deterministic, template-driven extraction of action markers (TODOs, review flags, deadlines) specifically from case study documents formatted in Markdown or plain text. It is ideal when you want consistent, repeatable extraction without generative AI inference or hallucination risk, and when the document is under 20,000 characters.

## Known failure modes

- Input text exceeds 20,000 character limit — request rejected
- Empty or missing text field — no output returned
- No action-marker lines present in the document — empty result set returned
- Malformed input that is not recognizable as text — processing error

## How this service works

Case study - Action-marker line extraction: Action-marker line extraction for Case study. 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 structured list of action-marker lines extracted from the submitted case study text — including TODO items, review flags, deadline markers, and any similar annotated action cues found in the document, without generative prose or additional commentary.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "default": "## Challenge\nExample 1 content.\nTODO: review the supplied document by 2026-10-10.\n\n## Solution\nExample 2 content.\nTODO: review the supplied document by 2026-10-10.\n\n## Results\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/case-study-action-marker-line-extraction-1487eb27/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)