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x402 Micro Pay — Keyword Extraction
x402
x402 Micro Pay — Keyword Extraction is a paid API for AI agents from x402-micro-pay.com, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-13).
Extracts keywords from a given text input via a pay-per-call HTTP microservice using x402/USDC micropayments.
Price / call$0.008
Success—
StatusUnknown
How this service works
Agent-ready microservices with x402 + Stripe rails, volume primitives, tutorials, and applet UI.
Output
A JSON response containing extracted keywords or key phrases from the submitted text, along with a success status flag and the request path. The response follows the format {ok: true, path: '/api/skills/keyword-extract'} plus the keyword payload.
Example use cases
Tag generation for blog content
“I just wrote this blog post intro and need you to pull out the top keywords so I can tag it properly: 'Electric vehicles are transforming urban transportation, cutting emissions and reducing fuel costs for city commuters.'”
SEO keyword extraction from product copy
“Extract the main keywords from this product listing so I can optimize it for search: 'Noise-cancelling wireless headphones with 30-hour battery life, foldable design, and deep bass sound for audiophiles.'”
Topic identification from customer feedback
“What are the key terms and topics coming out of this customer review? 'The delivery was lightning fast but the packaging was damaged and the instructions were impossible to follow.'”
Technical details
Endpoint
POSThttps://x402-micro-pay.com/api/skills/keyword-extract?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call keyword extraction service that works natively with AI agent workflows and x402 micropayment rails. Ideal when you want zero subscription overhead and only pay $0.008 USDC per extraction. Best for agents that process variable volumes of text and need on-demand NLP without managing API keys or monthly quotas.
Side effects
- Payment not included or insufficient USDC balance — 402 Payment Required returned
- Malformed request body missing required 'type' or 'method' fields — 400 Bad Request
- Empty or null input text — may return empty keyword list or validation error
- Network timeout or service unavailability — 503 or connection error
- Unsupported bodyType field value — unexpected parsing behavior
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | |
| limit | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"path": "/api/skills/keyword-extract"
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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