# PrepLayer.ai Multi-Label Text Classifier

> PrepLayer.ai Multi-Label Text Classifier is a paid API for AI agents from api.maximusmediahouse.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-29).

Applies rule-based multi-label classification to text across a fixed 12-category taxonomy including urgency, spam, crypto mentions, and PII signals

## Facts

- Endpoint: POST https://api.maximusmediahouse.com/v1/classify?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/preplayer-ai-multi-label-text-classifier-95eb6c9c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ONfddLoqE6q5CDNTYcjlF

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 preplayer-ai-multi-label-text-classifier-95eb6c9c -d '<json body>'
```

Example prompt: Can you classify this email text for urgency, financial promises, crypto mentions, and spam signals using the rule-based classifier — use a threshold of 2: 'Act now! Limited Bitcoin investment opportunity. Call us today to secure your guaranteed returns. Click here: bit.ly/xyz'

## When to prefer this

Choose this endpoint when you need fast, deterministic, rule-based multi-label classification over a fixed content-safety taxonomy — especially for spam, financial fraud, phishing, or compliance screening pipelines where reproducibility is required. Prefer this over LLM-based classifiers when you need zero variance across identical inputs, low latency, and predictable cost at $0.003 per call. Best suited for high-volume content moderation where the 12-label taxonomy covers your use case.

## Known failure modes

- Text shorter than 1 character or longer than 100,000 characters returns a validation error
- Threshold value outside 0-4 range returns a schema validation error
- Empty or null text field causes a bad request response
- Non-string text input causes type validation failure
- Network timeout on very large payloads near the 100,000 character limit

## How this service works

Rule-based multi-label text classification over a fixed taxonomy (urgency, financial_promise, credential_request, crypto_mention, cta, legal_offer, medical_claim, seo_spam, url_shortener, press_release, question, has_contact). Deterministic - identical text always yields identical labels.

## Output

Returns a set of matched label names from the fixed 12-label taxonomy (urgency, financial_promise, credential_request, crypto_mention, cta, legal_offer, medical_claim, seo_spam, url_shortener, press_release, question, has_contact) for labels whose rule weights meet or exceed the specified threshold. Response is deterministic — identical inputs always produce identical label sets.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "description": "Source text (1-100000 chars)."
  },
  "threshold": {
   "type": "integer",
   "default": 2,
   "maximum": 4,
   "minimum": 0,
   "description": "Minimum rule weight for a label to be emitted."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/preplayer-ai-multi-label-text-classifier-95eb6c9c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.maximusmediahouse.com](https://www.zero.xyz/host/api.maximusmediahouse.com/llms.txt)