# HALOWERK Construction Defect Literal Index Snapshot Compare

> HALOWERK Construction Defect Literal 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 snapshots of a construction defect literal index to identify changes over time in building defect records

## Facts

- Endpoint: POST https://medien.halowerk.com/v1/baumarkt/media/construction-defect-literal-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-construction-defect-literal-index-snapshot-compare-49686dd3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wFnIAJAlzpwbOb7cZrEwd

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-construction-defect-literal-index-snapshot-compare-49686dd3 -d '<json body>'
```

Example prompt: Compare the two latest snapshots of the construction defect literal index and tell me what changed — which defects are new, which were resolved, and what the key differences are.

## When to prefer this

Use this endpoint when you need to programmatically compare two states of a construction defect literal index (Baumarkt domain) and need structured JSON output of the differences. Prefer this over manual audits or generic diff tools when dealing with structured defect index data in the HALOWERK medienwerk ecosystem.

## Known failure modes

- Missing or invalid snapshot references result in a 400 error
- Snapshots from incompatible index versions may produce unreliable diffs
- No changes detected returns an empty diff or null delta
- Payment failure via x402 blocks the request
- Snapshot data unavailable for the requested time range returns a 404

## How this service works

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

## Output

Returns a JSON object detailing the differences between two construction defect literal index snapshots, including newly added defects, resolved or removed defects, modified entries, and a summary of the overall changes between the two indexed states.

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-construction-defect-literal-index-snapshot-compare-49686dd3/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)