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Cardano Price API (x402)
x402
Cardano Price API (x402) is a paid API for AI agents from anibalb.duckdns.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).
Returns the current USD price of Cardano (ADA) cryptocurrency, paid per call via x402/USDC on Base with no API key required.
Price / call$0.001
Success—
StatusUnknown
How this service works
Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.
Output
A JSON object containing the coin name ('cardano') and its current price in USD as a numeric value, e.g. {"coin":"cardano","price_usd":0.45}.
Example use cases
Live ADA portfolio valuation
“I hold 5,000 ADA — what's it worth in USD right now at the current Cardano price?”
Crypto price alert monitoring
“Check the current Cardano price for me and let me know if it's above $0.50.”
Cardano price comparison snapshot
“Pull the current USD price of Cardano so I can compare it against yesterday's close.”
Technical details
Endpoint
GEThttps://anibalb.duckdns.org/x402/cardano-price?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, low-cost, keyless Cardano price lookup and are already operating within an x402/USDC micropayment environment on Base. Ideal for agents that need on-demand spot prices without committing to a subscription or managing API credentials. Not ideal if you need historical price data, OHLCV candles, or prices for many assets in a single call.
Side effects
- Payment failure if USDC balance on Base is insufficient or x402 payment header is malformed
- Stale or delayed price data if the underlying data source is lagging
- HTTP 402 if payment is not provided
- HTTP 500 if the upstream price feed is unavailable
- No authentication errors since no API key is required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"coin": "cardano",
"price_usd": 1
}
}Tags
x402
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