# Hermes Micro-Agent — Keywords Extraction

> Hermes Micro-Agent — Keywords Extraction is a paid API for AI agents from hermesmicroservice.theworkpc.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-30).

Extracts key terms and keywords from a given text using an on-chain micropayment-gated AI endpoint on Base (USDC).

## Facts

- Endpoint: POST https://hermesmicroservice.theworkpc.com/keywords?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hermes-micro-agent-keywords-extraction-76dfb324
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-ESWFCOUVofnX2o3hU4dH

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 hermes-micro-agent-keywords-extraction-76dfb324 -d '<json body>'
```

Example prompt: Pull out the main keywords from this article intro: 'Artificial intelligence is transforming industries from healthcare to finance, enabling automation, predictive analytics, and smarter decision-making at scale.' Pay the $0.10 USDC fee using the keywords task.

## When to prefer this

Choose this endpoint when you need lightweight, pay-per-use keyword extraction without an API subscription, especially in agentic workflows that already support x402/HTTP 402 micropayments on Base. Ideal for low-volume or sporadic keyword extraction tasks where paying $0.10 per call is preferable to maintaining a paid NLP service subscription.

## Known failure modes

- Payment not verified on-chain — returns HTTP 402 requiring USDC micropayment before execution
- Missing required 'prompt' field — returns error indicating required parameter absent
- Empty or very short input text — may return empty or minimal keyword list
- Network or blockchain verification timeout — payment may succeed but response delayed
- Unsupported task value passed — endpoint may return unexpected results if task field is mismatched

## How this service works

20 paid AI and data micro-tasks over HTTP 402 on Base (USDC): summarize, extract, keywords, sentiment, translate, rewrite, proofread, python_debug, code_lint, code_explain, code_refactor, code_review, json_minify, json_query, csv_to_json, hash, base64, convert, describe_image, probe_media. Each call is priced per-task and verified on-chain before execution.

## Output

A string containing the extracted keywords or key terms found in the input text, returned as a plain-text response after on-chain USDC payment verification on Base.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "prompt"
 ],
 "properties": {
  "task": {
   "type": "string",
   "description": "Which micro-task to run"
  },
  "input": {
   "type": "string",
   "description": "Alias for prompt"
  },
  "prompt": {
   "type": "string",
   "description": "Text to process"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "string"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hermes-micro-agent-keywords-extraction-76dfb324/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from hermesmicroservice.theworkpc.com](https://www.zero.xyz/host/hermesmicroservice.theworkpc.com/llms.txt)