# HALOWERK Word-Gap Index Snapshot Compare

> HALOWERK Word-Gap Index Snapshot Compare is a paid API for AI agents from medien.halowerk.com, paid per call via x402, $0.031/call, status unknown (last checked 2026-10-10).

Compares two snapshots of subtitle/caption word-gap index data to identify changes in caption coverage gaps over time

## Facts

- Endpoint: POST https://medien.halowerk.com/v1/baumarkt/media/word-gap-index/snapshot-compare?utm_source=zero.xyz
- Price: $0.031/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-word-gap-index-snapshot-compare-fa6a3f05
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sYCFPuqLaNGIuNeL8scSW

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 halowerk-word-gap-index-snapshot-compare-fa6a3f05 -d '<json body>'
```

Example prompt: Compare these two word-gap index snapshots for my video — snapshot A is from the original cut and snapshot B is from the revised version — and tell me how the caption coverage gaps changed between them.

## When to prefer this

Choose this endpoint when you need to programmatically compare two specific caption/subtitle word-gap index snapshots to detect coverage changes — particularly useful for QA workflows, accessibility audits, or version-to-version regression checks on subtitle timing and coverage. Prefer this over general transcription or document analysis endpoints when your focus is specifically on subtitle display gap deltas between two known states.

## Known failure modes

- Missing or malformed snapshot data returns validation error
- Snapshots in incompatible formats cannot be compared
- Payment failure via x402 returns 402 status before processing
- Overly large snapshot payloads may exceed size limits
- Invalid snapshot structure returns schema mismatch error

## How this service works

HALOWERK medienwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.

## Output

Returns a JSON object containing the comparison results between two word-gap index snapshots, including identified differences in caption display gaps, coverage deltas, and a summary of where subtitle coverage improved or regressed between the two snapshots.

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-word-gap-index-snapshot-compare-fa6a3f05/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from medien.halowerk.com](https://www.zero.xyz/host/medien.halowerk.com/llms.txt)