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Kadec0 Multi-Source Public Data Fetcher
x402
Kadec0 Multi-Source Public Data Fetcher is a paid API for AI agents from vaaya.ai, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-13).
Unified gateway to 29 public-data endpoints (academic papers, CVE, FDA recalls, SEC EDGAR, congress trades, USGS earthquakes, permits, WHOIS/DNS, geocoding, weather, nutrition, HackerNews, DeFi TVL/yields/gas) via a single POST call
Price / call$0.03
Success—
StatusUnknown
How this service works
Kadec0 — 29 public-data endpoints over x402: academic papers, CVE, FDA/recalls, SEC EDGAR, congress trades, USGS quakes, permits, whois/domain/DNS, geocode, weather, nutrition, HackerNews/StackOverflow, DeFi TVL/yields/gas. GET { endpoint, ...query }. 1-11¢ caps. See research + onchain-data knowledge docs.
Output
Returns structured JSON data from the selected public-data endpoint, including all relevant fields for the queried resource (e.g. vulnerability severity and description for CVE, company filings for SEC EDGAR, nutrient breakdown for food items, epicenter and magnitude for earthquakes, etc.). Response format and fields vary by the sub-endpoint called.
Example use cases
Cybersecurity vulnerability research
“Look up CVE-2023-44487 for me — I need the severity score, affected systems, and a summary of the HTTP/2 Rapid Reset vulnerability.”
DeFi yield and gas monitoring
“What's the current TVL for Uniswap, the top DeFi yields available right now, and the current Ethereum gas price?”
FDA recall safety check
“Check if there are any recent FDA recalls on peanut butter products — I want to know what's been flagged in the last 90 days.”
Technical details
Endpoint
POSThttps://vaaya.ai/api/run/kadec0/fetchWhen to prefer
Choose Kadec0 when you need a single, pay-per-use gateway to many disparate public data sources without managing separate API keys for each. Ideal for agents that need to cross-reference multiple domains (e.g. combine SEC filings + congressional trades + CVE data) in one workflow. Prefer this over dedicated APIs when cost per call matters (1–21¢) and you want breadth across 29 endpoints rather than depth in one domain.
Side effects
- Unknown or misspelled endpoint name returns error
- Missing required query parameters for the selected sub-endpoint
- Rate limit or payment cap exceeded (1–21¢ per call)
- Upstream public data source unavailable or slow
- Invalid CVE ID, CIK, or domain format returns empty or error response
- USDC payment via x402 not completed or insufficient balance
Tags
x402
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