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QuantaFlow x402 API Gateway – CoinRanking Proxy
x402
QuantaFlow x402 API Gateway – CoinRanking Proxy is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Proxies requests to the CoinRanking cryptocurrency data API via x402 micropayment protocol, charging $0.01 USDC per call
Price / call$0.01
Success—
StatusUnknown
How this service works
Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.
Output
The raw upstream CoinRanking API response passed through after successful x402 micropayment, including cryptocurrency rankings, prices, market caps, trading volumes, and other coin metadata in JSON format.
Example use cases
Real-time crypto price dashboard
“Get me the latest prices and market caps for Bitcoin, Ethereum, and Solana from CoinRanking so I can update my portfolio tracker.”
DeFi token research tool
“Look up the top 20 DeFi tokens ranked by market cap on CoinRanking, including their 24-hour volume and price changes.”
Coin search for trading bot
“Fetch details for the coin with symbol 'AVAX' from CoinRanking — I need its current price, all-time high, and circulating supply.”
Technical details
Endpoint
POSThttps://quanta-roan.vercel.app/api/service/rapid-coinranking1When to prefer
Choose this endpoint when you need cryptocurrency market data (rankings, prices, volumes) and are operating in a web3/DeFi environment with x402 micropayment capability. Ideal for agents that already have USDC wallet infrastructure and want pay-per-call access to CoinRanking data without a monthly API subscription.
Side effects
- Payment failure: insufficient USDC balance or wallet not configured for x402 protocol
- Invalid path: upstream CoinRanking endpoint not found (404)
- Rate limiting: RapidAPI quota exceeded on the upstream key
- Malformed query parameters causing upstream API errors
- Network timeout proxying to CoinRanking upstream
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| body | string | Optional JSON body forwarded to POST requests. |
| path | string | Path below the selected upstream origin. |
| query | object | |
| method | string |
Output
Schema · Response
{
"description": "The upstream response body and content type are passed through after successful payment."
}Tags
x402
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