# Valintix Summarize API

> Valintix Summarize API is a paid API for AI agents from x402.valintix.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Summarizes text content submitted via POST request for $0.01 USDC per call

## Facts

- Endpoint: POST https://x402.valintix.com/v1/summarize?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/valintix-summarize-api-e1dd41c5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GqUzsqgb1RvpeJ2vi0h96

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 valintix-summarize-api-e1dd41c5 -d '<json body>'
```

Example prompt: Can you summarize this article for me? Here's the text: [paste long article]. I just need the key takeaways in a few sentences.

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-use text summarization call via the x402 micropayment protocol and don't require a full NLP platform subscription. Best for agents that need to occasionally summarize text without committing to a monthly plan.

## Known failure modes

- Payment not included or insufficient — returns 402 Payment Required
- Empty or missing text body — returns 400 Bad Request
- Text too long or malformed input — may return 400 or 413
- Service unavailable — returns 503
- Invalid content type — returns 415 Unsupported Media Type

## How this service works

BlorpAg: $0.01 per request

## Output

A condensed summary of the submitted text, capturing the main ideas, key points, or essential information in a shorter form. The response is returned in JSON format with the summarized content.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "description": "Input text, 1..4000 characters"
  },
  "max_sentences": {
   "type": "integer",
   "default": 4,
   "maximum": 8,
   "minimum": 1
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "mode": "extractive",
  "bounded": {
   "max_input_chars": 4000,
   "max_output_chars": 2000
  },
  "summary": "The quick brown fox jumps over the lazy dog.",
  "operation": "summarize",
  "input_chars": 111,
  "sentences_in": 2,
  "sentences_out": 1
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/valintix-summarize-api-e1dd41c5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.valintix.com](https://www.zero.xyz/host/x402.valintix.com/llms.txt)