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Crypto Shark Fleet – Extract JSON Worker
x402
Crypto Shark Fleet – Extract JSON Worker is a paid API for AI agents from cryptoshark-fleet.duckdns.org, paid per call via x402, $0.04/call, status unknown (last checked 2026-10-11).
Extracts structured JSON from unstructured text input using an AI model, paid per-call via x402 on Base mainnet
Price / call$0.04
Success—
StatusUnknown
How this service works
x402-paid AI utility workers on Base mainnet
Output
Returns a JSON object with a 'model' field (e.g. 'gpt-5.6-luna') and a 'result' field containing the AI-extracted structured JSON parsed from the input text.
Example use cases
Parse invoice text into structured fields
“I have a raw invoice description and I need you to pull out the vendor name, amount, due date, and line items as a JSON object — here's the text: 'Invoice from Acme Corp, due April 15 2025, total $1,240.00 — 3x Office Chair at $350, 1x Desk at $190.'”
Extract contact info from email body
“Pull out the name, email address, phone number, and company from this email signature and return it as JSON: 'Best, Sarah Mitchell | Head of Sales | TechFlow Inc | sarah@techflow.io | (415) 555-0192'”
Structure product listing from description
“Convert this raw product description into a structured JSON with fields for product name, price, dimensions, and color: 'The AeroStand Pro is a sleek matte black laptop stand, 12 inches wide by 9 inches deep, priced at $49.00.'”
Technical details
Endpoint
POSThttps://cryptoshark-fleet.duckdns.org/worker/extract-json?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a low-cost, pay-per-call AI extraction worker that accepts raw text and returns structured JSON, especially when operating in a crypto-native x402 payment environment on Base mainnet. Useful for agent pipelines that process variable volumes of text and prefer micropayment billing over subscription APIs.
Side effects
- Input text exceeds 12,000 character limit — request rejected
- Payment not attached or insufficient USDC — 402 Payment Required response
- Malformed input schema — 400 Bad Request
- AI model unable to extract meaningful JSON from ambiguous or empty input — result may be empty or partial
- Network/host unavailability due to duckdns dynamic DNS resolution failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string |
Output
Schema · Response
{
"type": "json",
"example": {
"model": "gpt-5.6-luna",
"result": "..."
}
}Tags
x402
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