# HALOWERK medienwerk – Engineering Performance Literal Index

> HALOWERK medienwerk – Engineering Performance Literal Index 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).

Timestamped source search for engineering-performance passages using literal vocabulary only, returning an indexed result set for the baumarkt/media domain.

## Facts

- Endpoint: POST https://medien.halowerk.com/v1/baumarkt/media/engineering-performance-literal-index?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-medienwerk-engineering-performance-literal-index-a41636d9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WiQh5P-tU-mDDSx7XgMmM

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-medienwerk-engineering-performance-literal-index-a41636d9 -d '<json body>'
```

Example prompt: Search the HALOWERK engineering-performance literal index for timestamped media sources that mention exactly 'Tragfähigkeit' and 'Belastungsgrenze' — I need precise literal matches only, no semantic expansion.

## When to prefer this

Choose this endpoint when you need strict literal vocabulary matching against timestamped engineering-performance media sources in the baumarkt domain, and semantic or fuzzy search would produce false positives. Ideal when exact terminology traceability and source provenance are required over recall breadth.

## Known failure modes

- Query terms not found in literal index — returns empty result set
- Overly broad or non-literal query terms yield no matches due to strict literal-only matching
- Rate limiting or payment failure via x402 protocol results in 402 Payment Required
- Malformed POST body causes 400 Bad Request
- Timestamp range constraints too narrow return no matching sources

## How this service works

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

## Output

Returns a JSON object containing timestamped source references and literal-match passages from engineering-performance media, including source metadata, matched vocabulary terms, and index entry identifiers relevant to the queried literal terms.

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-medienwerk-engineering-performance-literal-index-a41636d9/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)