# Web Page H2 Literal Term Matcher

> Web Page H2 Literal Term Matcher is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-14).

Searches level-two headings (H2 elements) on a web page for literal term matches, returning bounded results from static HTML parsing.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-web-h2-term?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/web-page-h2-literal-term-matcher-2312acb0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_F4bDEFxyyNSlIFPEBocwy

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 web-page-h2-literal-term-matcher-2312acb0 -d '<json body>'
```

Example prompt: Search the H2 headings on https://example.com/docs for the literal term 'installation' and tell me which headings match, filtering to those with id attribute equal to 'setup'.

## When to prefer this

Use this endpoint when you need fast, cheap literal keyword matching specifically within H2-level headings of a static HTML page — ideal for SEO audits, content structure checks, documentation discovery, or heading presence verification. Prefer this over full-page scrapers when you only care about H2 elements and want a bounded, structured result at minimal cost ($0.01 USDC). Not suitable when H2 content requires JavaScript rendering, login, or when fuzzy/semantic matching is needed.

## Known failure modes

- URL is unreachable or returns a non-200 HTTP status
- Provided HTML is malformed or exceeds 100,000 character limit
- Search term is empty or exceeds 100 characters
- Attribute name does not match the pattern ^[a-zA-Z][a-zA-Z0-9:_-]{0,49}$
- Page requires JavaScript rendering to expose H2 elements (static parse only)
- URL requires login or access bypass (not supported)
- No H2 headings found on the page
- No H2 headings match the literal term

## How this service works

Level-two headings — Literal term matches: Literal term matches for Level-two headings. One public HTTPS page or supplied HTML; static parsing, no JavaScript rendering, login or access bypass. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one bounded literal term matches result.

## Output

Returns a bounded set of literal term match results for H2 headings found on the provided page or HTML — including matched heading text, relevant attributes, and contextual information derived from static HTML parsing (no JavaScript rendering).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "default": "",
   "maxLength": 2048
  },
  "html": {
   "type": "string",
   "default": "<!doctype html><html><head></head><body><h2 id=\"sample\" data-kind=\"example\">Example product guide</h2></body></html>",
   "maxLength": 100000
  },
  "term": {
   "type": "string",
   "default": "product",
   "maxLength": 100,
   "minLength": 1
  },
  "attribute": {
   "type": "string",
   "default": "id",
   "pattern": "^[a-zA-Z][a-zA-Z0-9:_-]{0,49}$",
   "maxLength": 50
  },
  "previous_texts": {
   "type": "array",
   "items": {
    "type": "string",
    "default": "",
    "maxLength": 1000
   },
   "default": [
    "Older example"
   ],
   "maxItems": 200,
   "minItems": 0
  },
  "attribute_value": {
   "type": "string",
   "default": "sample",
   "maxLength": 200
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/web-page-h2-literal-term-matcher-2312acb0/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)