# Halowerk Unicode 13 UAX#14 Tailored Line-Break Opportunity Detector

> Halowerk Unicode 13 UAX#14 Tailored Line-Break Opportunity Detector is a paid API for AI agents from detect.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-11-04).

Derives the complete set of Unicode 13 UAX#14 line-break opportunities for input text with explicit numeric tailoring, then verifies the result against a canonical SHA-256 hash claim.

## Facts

- Endpoint: POST https://detect.halowerk.com/v1/F-TD2000-DOCUMENTS-09/unicode13-uax14-example7-tailored-complete-line-break-opportunity-set?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-04
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/halowerk-unicode-13-uax-14-tailored-line-break-opportunity-detector-e64b507b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rFaGMsaQuRIHud9mqJWNk

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-unicode-13-uax-14-tailored-line-break-opportunity-detector-e64b507b -d '<json body>'
```

Example prompt: Find all Unicode 13 UAX#14 tailored line-break opportunities in the text 'Hello World 123' and check whether the result matches the SHA-256 claim 'a3f1...c9d2' (provide the full 64-character hex hash you want verified).

## When to prefer this

Use this endpoint when you need to compute Unicode 13 compliant UAX#14 line-break opportunities with explicit numeric tailoring and optionally verify the result against a SHA-256 integrity claim. Prefer this over generic text utilities when strict Unicode 13 compliance, example-7 tailoring, and cryptographic result verification are required together in a single call.

## Known failure modes

- Text exceeds 512-character maximum length — input validation error
- Text is empty or below minimum length of 1 character
- SHA-256 claim format invalid — must be exactly 64 lowercase hex characters
- Hash mismatch — computed result does not match the supplied claim
- Malformed JSON input — missing required 'text' field inside lineBreaks.data
- Payment failure — x402 payment not completed before request is processed

## How this service works

Derive Unicode13 line-break opportunities with explicit numeric tailoring. Reconstruct the fully typed result and compare its complete canonical SHA256 claim.

## Output

Returns the fully reconstructed set of Unicode 13 UAX#14 tailored line-break opportunities for the input text, along with a comparison result indicating whether the computed output matches the supplied canonical SHA-256 hash claim (or the computed hash itself if no claim was provided).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "artifact": {
   "type": "object",
   "required": [
    "lineBreaks"
   ],
   "properties": {
    "lineBreaks": {
     "type": "object",
     "required": [
      "data",
      "claim"
     ],
     "properties": {
      "data": {
       "type": "object",
       "required": [
        "text"
       ],
       "properties": {
        "text": {
         "type": "string",
         "maxLength": 512,
         "minLength": 1
        }
       },
       "additionalProperties": false
      },
      "claim": {
       "anyOf": [
        {
         "type": "null"
        },
        {
         "type": "string",
         "pattern": "^[0-9a-f]{64}$",
         "maxLength": 64,
         "minLength": 64
        }
       ]
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/halowerk-unicode-13-uax-14-tailored-line-break-opportunity-detector-e64b507b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from detect.halowerk.com](https://www.zero.xyz/host/detect.halowerk.com/llms.txt)