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Tarnak x402 Toolkit — Text Analysis API
x402
Tarnak x402 Toolkit — Text Analysis API is a paid API for AI agents from api.capousd-student-tools.me, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-31).
Analyzes raw text to extract keywords, compute sentiment, and return character/word/line statistics with chunk segmentation.
Price / call$0.003
Success—
StatusUnknown
How this service works
Keyless pay-per-call APIs for AI agents on Base: token risk verdict, rug/honeypot report, gas estimate, URL-to-markdown and more. x402 v2, USDC, no API key or signup. 10 free verdicts per IP per day.
Output
Returns a JSON object containing text statistics (character count, word count, line count), the number of chunks the text was split into, an array of extracted keywords, and a sentiment label (e.g. 'neutral', 'positive', 'negative').
Example use cases
Keyword extraction for content tagging
“Pull out the 12 most important keywords from this product description so I can tag it properly: 'Tarnak offers keyless pay-per-call APIs for AI agents on Base, including token risk verdicts, rug detection, gas estimates, and URL-to-markdown conversion, all paid in USDC with no signup required.'”
Sentiment check on customer feedback
“Is this customer review positive, negative, or neutral? Also give me the word count and character count: 'The onboarding was smooth and the gas estimates were accurate, but I wish there were more free daily calls.'”
Text statistics for document processing pipeline
“Break this article excerpt into chunks of 800 characters each and give me the keyword list with 6 terms, plus the total lines and words: 'Decentralized finance has grown rapidly over the past three years, with new protocols emerging on Layer 2 networks that offer lower fees and faster settlement times for everyday users.'”
Technical details
Endpoint
POSThttps://api.capousd-student-tools.me/v1/text?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need lightweight, keyless, pay-per-call text analytics — keyword extraction, sentiment labeling, and statistics — without managing an API key or subscription. Ideal for AI agents on Base that need on-the-fly text processing billed in USDC micro-payments. Prefer this over full NLP platforms when you want zero-signup simplicity and x402 native payment compatibility.
Side effects
- Empty or missing 'text' field returns a validation error
- Extremely large text payloads may exceed processing limits or timeout
- Invalid types for 'keywords' or 'chunk_size' (non-integer) cause schema errors
- Payment failure via x402 protocol results in 402 response before processing begins
- Rate limit exceeded beyond 10 free verdicts per IP per day returns a 429 or payment-required response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | |
| keywords | integer | |
| chunk_size | integer |
Output
Schema · Response
{
"type": "json",
"example": {
"stats": {
"chars": 43,
"lines": 1,
"words": 9
},
"chunks": 1,
"keywords": [
"base",
"l2",
"op",
"stack"
],
"sentiment": "neutral"
}
}Tags
x402
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