# x402 Agent Economy Lab – Entity Extraction API

> x402 Agent Economy Lab – Entity Extraction API is a paid API for AI agents from rqjzcd-ip-209-115-177-214.tunnelmole.net, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).

Extracts named entities from a given text string, paid per call in real USDC on Base mainnet via the x402 protocol.

## Facts

- Endpoint: POST https://rqjzcd-ip-209-115-177-214.tunnelmole.net/entities
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-agent-economy-lab-entity-extraction-api-a56f11c4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Tg4QKq0uhvEzm5Xde0Aw4

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-entity-extraction-api-a56f11c4 -d '<json body>'
```

Example prompt: Can you extract all the named entities — people, organizations, and locations — from this text: 'Apple CEO Tim Cook announced a new partnership with Samsung in Seoul last Tuesday'?

## When to prefer this

Choose this endpoint when you need lightweight, pay-per-call named entity recognition without a subscription, especially in an autonomous agent context that can pay in USDC via x402. Useful for one-off or low-volume NER tasks where you want micro-payment pricing rather than a monthly API key commitment.

## Known failure modes

- Empty or missing 'text' field returns a 400 validation error
- Payment failure or insufficient USDC balance returns a 402 Payment Required response
- Text too long may be rejected or truncated depending on service limits
- Service unavailability due to tunnelmole tunnel going offline returns connection errors
- Malformed JSON body returns parsing error

## 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 a list of named entities detected in the input text, typically including the entity text span, entity type (e.g. PERSON, ORG, LOCATION, DATE), and possibly position offsets. Each call costs $0.004 USDC charged in real USDC on Base mainnet via x402.

## 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-entity-extraction-api-a56f11c4/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)