# HydraTrader Text NLP — Summarize

> HydraTrader Text NLP — Summarize is a paid API for AI agents from x402.hydratrader.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Summarizes (or performs other NLP tasks on) arbitrary text for $0.01 USDC per call via x402 micropayment, no API key required.

## Facts

- Endpoint: POST https://x402.hydratrader.ai/v1/summarize?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hydratrader-text-nlp-summarize-93781ad5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_We2-69ZmSuNVsvPi8ZGiJ

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 hydratrader-text-nlp-summarize-93781ad5 -d '<json body>'
```

Example prompt: Can you summarize the following article for me? It's about 1,500 words and I just need the key takeaways in a few sentences: [paste article text here].

## When to prefer this

Choose this endpoint when you need lightweight, pay-per-use NLP on arbitrary text without an API key or subscription — ideal for agents that need occasional summarization, keyword extraction, sentiment tagging, or translation at $0.01 per call. Prefer it over larger LLM APIs when cost efficiency and simplicity matter and the task fits one of its six supported operations.

## Known failure modes

- HTTP 402 returned if x402 micropayment is not attached or fails
- Input text exceeds 8000 character limit causing validation error
- Unsupported task enum value causing a 400 bad request
- Empty or missing 'input' field returns an error
- Network timeout for very large inputs near the character limit

## How this service works

Summarize text: Verb-path alias of POST /v1/cheap-errand ($0.01 USDC). Same handler + payment terms; path defaults task=summarize when body.task omitted. Cheap agent glue for buyer-supplied text. Base via x402. No API key.

## Output

A JSON response containing the processed output of the requested NLP task — e.g. a condensed summary string, a list of keywords, a sentiment label, a rewritten version of the text, or a translated passage, depending on the task specified (or defaulted from the path).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "task": {
   "enum": [
    "summarize",
    "rewrite",
    "classify",
    "extract_keywords",
    "sentiment",
    "translate"
   ],
   "type": "string"
  },
  "input": {
   "type": "string",
   "maxLength": 8000
  },
  "options": {
   "type": "object"
  },
  "client_ref": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hydratrader-text-nlp-summarize-93781ad5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.hydratrader.ai](https://www.zero.xyz/host/x402.hydratrader.ai/llms.txt)