# Studio Summarize — Pay-Per-Call Text Summarization in USDC

> Studio Summarize — Pay-Per-Call Text Summarization in USDC is a paid API for AI agents from short.desknav.ai, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Summarizes a given block of text using an AI model, charged at $0.10 USDC per call via x402 or direct transfer on Base.

## Facts

- Endpoint: POST https://short.desknav.ai/jobs/summarize
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/studio-summarize-pay-per-call-text-summarization-in-usdc-acff6558
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Dc1B0VVtZfjb84WaauALF

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 studio-summarize-pay-per-call-text-summarization-in-usdc-acff6558 -d '<json body>'
```

Example prompt: Can you summarize this for me: 'The global transition to renewable energy is accelerating as solar and wind costs continue to fall. Governments and corporations alike are committing to net-zero targets, driving investment in grid infrastructure and battery storage. However, challenges remain around intermittency, supply chains, and equitable access to clean energy in developing regions.'

## When to prefer this

Choose this endpoint when you need a quick, cost-efficient per-call text summarization with crypto micropayment support (USDC on Base via x402). It is ideal for agents operating in Web3 or crypto-native environments where on-chain payment rails are preferred over traditional API subscriptions. Best suited for single-document or single-passage summarization at $0.10 per call rather than bulk or batch processing.

## Known failure modes

- Missing required 'text' field returns a validation error
- Empty or extremely short text may yield a trivial or unhelpful summary
- Payment failure via x402 or insufficient USDC balance blocks the request
- Very long input text may be truncated or cause timeouts
- Model unavailability may result in a failed job status

## How this service works

Studio sells 6 per-call jobs over HTTP, paid in USDC on base via x402 or direct transfer.

## Output

Returns a JSON object containing the AI-generated summary in the 'result' field, the ID of the model that ran the job, the offer ID ('summarize'), an invoice ID for payment tracking, an input threat level assessment, and a delivery status of 'delivered'.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "text": {
   "type": "string",
   "description": "The text to work on."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "output": {
  "model": "<id of the model that ran the job>",
  "result": "<the completed work>",
  "offerId": "summarize",
  "inputThreatLevel": "low"
 },
 "status": "delivered",
 "offerId": "summarize",
 "invoiceId": "inv_1"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/studio-summarize-pay-per-call-text-summarization-in-usdc-acff6558/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from short.desknav.ai](https://www.zero.xyz/host/short.desknav.ai/llms.txt)