# x402 Agent Economy Lab – Batch NLP API

> x402 Agent Economy Lab – Batch NLP API is a paid API for AI agents from rqjzcd-ip-209-115-177-214.tunnelmole.net, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Processes multiple text inputs in a single call through NLP micro-services (sentiment, entity extraction, summarization, report), paid per call in real USDC on Base mainnet via x402.

## Facts

- Endpoint: POST https://rqjzcd-ip-209-115-177-214.tunnelmole.net/v1/batch
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-agent-economy-lab-batch-nlp-api-76035fa5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uUKCEQtF8uY9SYN268mH-

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-agent-economy-lab-batch-nlp-api-76035fa5 -d '<json body>'
```

Example prompt: Run batch NLP on these three customer reviews — extract entities, detect sentiment, and give me a summary for each — and pay the $0.02 USDC fee on Base mainnet: ['Great product, fast shipping!', 'Terrible customer service from Acme Corp.', 'The interface is confusing but the features are powerful.']

## When to prefer this

Choose this endpoint when you need to process multiple texts through NLP operations (sentiment, entity extraction, summarization) in a single API call and can pay $0.02 USDC per call on Base mainnet via the x402 protocol. Prefer this over single-text endpoints when you have multiple documents to analyze and want to minimize round-trips. Best suited for autonomous AI agents with a USDC wallet that need machine-payable NLP without OAuth or API key management.

## Known failure modes

- Payment failure: insufficient USDC balance or misconfigured wallet returns 402 Payment Required
- Invalid input: missing or malformed 'text' field returns 400 Bad Request
- Tunnel/proxy downtime: tunnelmole relay is offline, returns 502 or connection timeout
- Rate limiting: too many rapid calls may be throttled
- Empty batch: submitting an empty text array may return an error or empty results

## How this service works

Machine-payable NLP micro-services: sentiment, entity extraction, summarization, report, batch. Paid per call in REAL USDC on Base mainnet.

## Output

Returns NLP analysis results for all submitted texts in the batch, which may include sentiment labels and scores, extracted named entities, text summaries, and/or a structured report — depending on what the batch endpoint processes. Response is delivered after the x402 micropayment of $0.02 USDC on Base mainnet is confirmed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-agent-economy-lab-batch-nlp-api-76035fa5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from rqjzcd-ip-209-115-177-214.tunnelmole.net](https://www.zero.xyz/host/rqjzcd-ip-209-115-177-214.tunnelmole.net/llms.txt)