# x402 APIs - Text Summarization

> x402 APIs - Text Summarization is a paid API for AI agents from x402-apis-eta.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Summarizes a given text into a concise set of sentences using pay-per-request micropayments via the x402 protocol

## Facts

- Endpoint: POST https://x402-apis-eta.vercel.app/api/summarize
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-apis-text-summarization-b6800683
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Gn1gFXH5G4v4cFIymQYm3

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 x402-apis-text-summarization-b6800683 -d '<json body>'
```

Example prompt: Summarize the following article text into no more than 3 sentences: 'Artificial intelligence is transforming industries worldwide. Companies are investing billions in machine learning research. Governments are beginning to regulate AI development to ensure safety and fairness. Experts predict AI will reshape the labor market over the next decade.'

## When to prefer this

Choose this endpoint when you need quick, on-demand text summarization without setting up API keys or accounts, and when you are operating in an x402-compatible micropayment environment. It is well-suited for AI agents that need to condense large amounts of text programmatically and can pay $0.01 USDC per call. Ideal for Coinbase/x402 ecosystem integrations.

## Known failure modes

- Missing required 'text' field returns a 400 or validation error
- Payment not provided or insufficient USDC balance results in x402 payment required response
- Text too long may result in timeout or truncation
- max_sentences set to zero or a negative value may cause unexpected behavior
- Network or upstream service downtime causes 500 error

## How this service works

AI-agent-friendly APIs with instant micropayments via x402 protocol. No API keys, no accounts - just pay and access.

## Output

A condensed summary of the provided text, reduced to the requested number of sentences (or a default number if max_sentences is not specified), capturing the key points of the original content.

## Example request

```json
{
 "text": "Artificial intelligence is transforming industries worldwide. Companies are investing billions in machine learning research. Governments are beginning to regulate AI development to ensure safety and fairness. Experts predict AI will reshape the labor market over the next decade.",
 "max_sentences": 3
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "text": {
   "type": "string"
  },
  "max_sentences": {
   "type": "number"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-apis-text-summarization-b6800683/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-apis-eta.vercel.app](https://www.zero.xyz/host/x402-apis-eta.vercel.app/llms.txt)