# User Guide Heading Outline

> User Guide Heading Outline 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).

Generates a structured heading outline from a user guide document supplied as Markdown or plain text

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-sector-writing-user-guide-outline?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/user-guide-heading-outline-930c02e6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PtcKDtadDQbmjg-4uYGAR

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 user-guide-heading-outline-930c02e6 -d '<json body>'
```

Example prompt: Can you generate a heading outline from my user guide? Here's the content: '## Overview
This section covers installation.
## Steps
Step-by-step setup instructions.
## Troubleshooting
Common issues and fixes.'

## When to prefer this

Choose this endpoint when you need a deterministic, non-generative extraction of heading structure from an existing user guide document in Markdown or plain text. It is ideal when you want a reliable, repeatable outline without AI-generated prose or hallucination risk, and when your document is under 20,000 characters.

## Known failure modes

- Input text exceeds 20,000 character limit — request will be rejected
- No headings detected in plain text input — output may be empty or minimal
- Malformed Markdown syntax may cause unexpected heading detection results
- Payment failure via x402 protocol prevents processing

## How this service works

User guide - Heading outline: Heading outline for User guide. 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 heading outline deliverable.

## Output

A bounded heading outline derived from the supplied Markdown or plain text, listing the document's section headings in hierarchical order without generative prose or additional content

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "default": "## Overview\nExample 1 content.\nTODO: review the supplied document by 2026-10-10.\n\n## Steps\nExample 2 content.\nTODO: review the supplied document by 2026-10-10.\n\n## Troubleshooting\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/user-guide-heading-outline-930c02e6/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)