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TradepilotUSA Markdown Heading Outline Extractor
x402
TradepilotUSA Markdown Heading Outline Extractor is a paid API for AI agents from www.tradepilotusa.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-29).
Parses a Markdown document and returns a structured outline of all ATX headings (H1–H6) with their line numbers and levels.
Price / call$0.01
Success—
StatusUnknown
How this service works
Extract ATX headings with levels and source line numbers from Markdown, excluding fenced code blocks. Leaves inline Markdown in titles unchanged. Setext and container-nested headings are outside the supported subset.
Output
Returns a JSON object containing: a 'headings' array where each item has 'line' (line number), 'level' (1–6), and 'title' (heading text); a 'heading_count' integer; a 'syntax' description clarifying that only ATX-style headings outside fenced code blocks are extracted; a 'utility' identifier; and a 'provenance' block confirming deterministic local execution with no model or network calls used.
Example use cases
Auto-generate document table of contents
“I have a long markdown README file — can you pull out all the headings and their levels so I can build a table of contents from it? Here's the full markdown text.”
Validate section structure of a doc
“Can you extract all the headings from this markdown spec I wrote and tell me how many there are and what levels they are, so I can check whether the structure looks right?”
Index headings for search navigation
“I need to index all the section headers in this markdown wiki page — can you give me each heading's title, level, and line number so I can build a jump-to-section nav?”
Technical details
Endpoint
POSThttps://www.tradepilotusa.com/api/agent-commerce/v1/services/markdown_heading_outline/execute?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, deterministic, zero-hallucination extraction of ATX heading structure from Markdown — no LLM involved, so results are perfectly consistent. Ideal when you need line numbers for navigation, want to validate document structure programmatically, or need to build a table of contents without any AI variance. Prefer over LLM-based parsing when accuracy and reproducibility are critical.
Side effects
- Markdown input exceeds 48,000 character limit — request rejected
- Empty markdown string returns an empty headings array with heading_count 0
- Setext-style headings (underline syntax) are intentionally excluded and will not appear in results
- Headings inside fenced code blocks are excluded by design
- Malformed JSON body returns a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| markdown | string |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"syntax": "ATX headings outside fenced code; inline Markdown preserved; Setext headings excluded",
"headings": [
{
"line": 1,
"level": 1,
"title": "Overview"
},
{
"line": 3,
"level": 2,
"title": "Delivery"
}
],
"heading_count": 2
},
"utility": "markdown_heading_outline",
"provenance": {
"execution": "deterministic_local",
"model_used": false,
"network_request_performed": false
},
"request_id": "example_markdown_heading_outline"
}
}Tags
x402
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