# ClearCheck Text Summarizer

> ClearCheck Text Summarizer 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).

Compresses a text passage into a fixed number of sentences with deterministic, filler-free output

## Facts

- Endpoint: GET https://loonie-toll.onrender.com/summarize
- 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-text-summarizer-f627c82e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wOIUYpsXrQJTWXvFfmFLu

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-text-summarizer-f627c82e
```

Example prompt: Can you compress this article into exactly 4 sentences — no preamble, no filler, just the core content: [paste up to 6000 characters of text here]?

## When to prefer this

Choose this endpoint when you need a deterministic, fixed-length text summary with no AI-generated preamble or filler sentences. It is ideal for pipelines where consistent output length is critical, such as digest feeds, UI cards, or downstream processing. Prefer this over open-ended summarizers when you need exactly N sentences every time, not a variable-length response.

## Known failure modes

- Text exceeds 6000 character limit — request will fail or be truncated
- Missing required 'text' query parameter returns an error
- Requesting 0 or negative sentence count may produce unexpected results
- Very short inputs may not compress meaningfully into the requested sentence count
- Network or render.com cold-start latency may cause timeouts on first request

## How this service works

Compress a passage to a fixed number of sentences. Deterministic length, no preamble, no filler.

## Output

Returns a JSON object containing the compressed summary (fixed to the requested number of sentences), the model used, compression ratio, input and output character counts, the number of requested sentences, and source metadata. No preamble or filler is included in the summary.

## 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."
      },
      "sentences": {
       "type": "integer",
       "description": "How many sentences, default 3"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "model": {
       "type": "string"
      },
      "source": {
       "type": "string"
      },
      "summary": {
       "type": "string"
      },
      "verdict": {
       "type": "string"
      },
      "disclaimer": {
       "type": "string"
      },
      "inputChars": {
       "type": "integer"
      },
      "compression": {
       "type": "number"
      },
      "outputChars": {
       "type": "integer"
      },
      "requestedSentences": {
       "type": "integer"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/clearcheck-text-summarizer-f627c82e/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)