# Strale Text Summarization API

> Strale Text Summarization API is a paid API for AI agents from api.strale.io, paid per call via x402, $0.054/call, status unknown (last checked 2026-09-14).

Summarizes a block of text into a shorter form, with configurable style (paragraph, bullets, or one sentence) and optional word-count limit.

## Facts

- Endpoint: GET https://api.strale.io/x402/v2/summarize
- Price: $0.054/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/strale-text-summarization-api-bb74ec67
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZMGGViJMSn0_bE3-FbvzN

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 strale-text-summarization-api-bb74ec67
```

Example prompt: Can you summarize this article in bullet points, keeping it under 150 words? Here's the text: [paste of article]

## When to prefer this

Choose this endpoint when you need a quick, cost-effective text summarization with a verifiable audit trail — especially in agentic pipelines that require cryptographic proof of each call. It supports three distinct output styles (paragraph, bullets, one_sentence) and an adjustable word-count cap, making it flexible for content pipelines, briefing generators, and summarization workflows across 27 countries. Prefer it over generic LLM summarization when auditability, per-call micropayment billing via x402, or integration with other Strale data capabilities is required.

## Known failure modes

- Missing required 'text' query parameter returns a validation error
- Invalid 'style' value (not paragraph, bullets, or one_sentence) may return an error or be ignored
- Text that is extremely long may be truncated or time out
- Payment of 0.054 USDC via x402 must succeed before the response is returned; failed payments result in 402 response
- Empty or whitespace-only text input may return an empty or trivial summary

## How this service works

The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.

## Output

Returns a condensed version of the input text in the requested style (paragraph, bullet points, or a single sentence), respecting the optional maximum word count. Each call also returns a Strale audit record with cryptographic chain hashing for traceability.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "text"
     ],
     "properties": {
      "text": {
       "type": "string",
       "description": "Text to summarize"
      },
      "style": {
       "type": "string",
       "description": "Summary style: paragraph, bullets, or one_sentence"
      },
      "max_length": {
       "type": "integer",
       "description": "Approximate max word count"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/strale-text-summarization-api-bb74ec67/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)