# ClearCheck Content Safety Screener

> ClearCheck Content Safety Screener is a paid API for AI agents from loonie-toll.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Screens a text passage for harmful or policy-violating content, returning an allow/review/block action plus the triggered safety categories.

## Facts

- Endpoint: GET https://loonie-toll.onrender.com/moderate
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/clearcheck-content-safety-screener-7e58a534
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p7EztYB1AJRSnyzb0cmnj

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 clearcheck-content-safety-screener-7e58a534
```

Example prompt: Can you run a safety check on this user comment before I publish it: 'You should all be ashamed of yourselves, people like you deserve to suffer' — tell me whether to allow, review, or block it, and which categories triggered.

## When to prefer this

Use this endpoint when you need a fast, cheap ($0.01) first-pass content safety check on text before publishing, relaying, or storing it. It is best suited for automated pipelines that need to triage content into allow/review/block buckets at scale without human review on every item. Prefer this over heavier moderation APIs when cost and latency matter more than fine-grained category taxonomies or appeal workflows.

## Known failure modes

- Text exceeds 6000 character limit — request rejected or truncated
- Empty or missing text query parameter — returns an error
- Ambiguous borderline content may receive 'review' rather than a decisive allow/block
- Model may miss subtle or highly coded harmful language (false negatives)
- Service may be unavailable if the Render.com free-tier instance is sleeping (cold start delay)

## How this service works

Content safety screen: allow, review or block, with the categories that fired. A first-pass filter, not a ruling.

## Output

Returns a JSON object containing an action field (allow, review, or block), a verdict string, a reason explaining the decision, an array of triggered safety categories, the model used for classification, and a disclaimer note clarifying this is a first-pass filter rather than a definitive ruling.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "text"
     ],
     "properties": {
      "text": {
       "type": "string",
       "description": "The text to work on. 6000 characters maximum."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "note": {
       "type": "string"
      },
      "model": {
       "type": "string"
      },
      "action": {
       "type": "string"
      },
      "reason": {
       "type": "string"
      },
      "source": {
       "type": "string"
      },
      "verdict": {
       "type": "string"
      },
      "categories": {
       "type": "array"
      },
      "disclaimer": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/clearcheck-content-safety-screener-7e58a534/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from loonie-toll.onrender.com](https://www.zero.xyz/host/loonie-toll.onrender.com/llms.txt)