# HALOWERK buerowerk — Legal Evidence Literals Source Note Register

> HALOWERK buerowerk — Legal Evidence Literals Source Note Register is a paid API for AI agents from buero.halowerk.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Extracts and registers legal evidence literals and source notes from meeting transcript segments, producing a structured evidence register for legal or compliance use.

## Facts

- Endpoint: POST https://buero.halowerk.com/v1/baumarkt/meeting/legal-evidence-literals-source-note-register?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-buerowerk-legal-evidence-literals-source-note-register-2f21b60e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2oZQjGc4KTWKzAYgfPJl1

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-buerowerk-legal-evidence-literals-source-note-register-2f21b60e -d '<json body>'
```

Example prompt: I have a meeting transcript with speaker labels and timestamps — can you extract all the legally significant statements and register them as source-noted evidence literals? Here's the transcript with segments starting at 0 seconds and running through the full 45-minute meeting.

## When to prefer this

Choose this endpoint when you need to extract and formally register legally significant statements from a meeting transcript with full source attribution and timestamp anchoring — particularly when preparing legal evidence, compliance records, or dispute documentation from recorded meetings. Prefer over generic transcript summarization when the output must be structured as an evidence register rather than a summary.

## Known failure modes

- Missing required segment fields (start, end, speaker, text) returns validation error
- Segment timestamps exceeding maximum (14400 seconds) are rejected
- Empty segments array or segments with empty text are rejected
- transcript_package cues exceeding duration_seconds maximum (1800) are rejected
- Malformed JSON input returns 400 error
- Payment failure via x402 returns 402 Payment Required

## How this service works

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

## Output

A structured JSON evidence register containing extracted legal evidence literals from the transcript, each annotated with source notes, speaker attribution, and precise timestamp references from the meeting segments.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "segments": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "start",
     "end",
     "speaker",
     "text"
    ],
    "properties": {
     "end": {
      "type": "number",
      "maximum": 14400,
      "exclusiveMinimum": 0
     },
     "text": {
      "type": "string",
      "maxLength": 3000,
      "minLength": 1
     },
     "start": {
      "type": "number",
      "maximum": 14400,
      "minimum": 0
     },
     "speaker": {
      "type": [
       "string",
       "null"
      ],
      "maxLength": 80,
      "minLength": 1
     }
    },
    "additionalProperties": false
   },
   "maxItems": 20000,
   "minItems": 1
  },
  "transcript_package": {
   "type": "object",
   "required": [
    "cues",
    "media"
   ],
   "properties": {
    "cues": {
     "type": "array",
     "items": {
      "type": "object",
      "required": [
       "start",
       "end",
       "speaker",
       "text"
      ],
      "properties": {
       "end": {
        "type": "number",
        "maximum": 1801,
        "exclusiveMinimum": 0
       },
       "text": {
        "type": "string",
        "maxLength": 3000,
        "minLength": 1
       },
       "start": {
        "type": "number",
        "maximum": 1801,
        "minimum": 0
       },
       "speaker": {
        "type": [
         "integer",
         "null"
        ],
        "maximum": 20000,
        "minimum": 0
       }
      }
     },
     "maxItems": 20000,
     "minItems": 1
    },
    "media": {
     "type": "object",
     "required": [
      "duration_seconds"
     ],
     "properties": {
      "duration_seconds": {
       "type": "number",
       "maximum": 1800,
       "exclusiveMinimum": 0
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-buerowerk-legal-evidence-literals-source-note-register-2f21b60e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from buero.halowerk.com](https://www.zero.xyz/host/buero.halowerk.com/llms.txt)