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x402 Demo API – Crypto Price
x402
x402 Demo API – Crypto Price is a paid API for AI agents from x402-demo-api-theta.vercel.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Returns the current price of a specified cryptocurrency using the x402 micropayment protocol on Base mainnet for $0.02 USDC per call.
Price / call$0.02
Success—
StatusUnknown
How this service works
Paid API with real data: AI/LLM, crypto prices, web search, translation, trending topics, sentiment analysis, aggregator, and more. All endpoints use x402 protocol on Base mainnet.
Output
Returns the current market price of the requested cryptocurrency, likely including the symbol and price value in USD or another quote currency.
Example use cases
Real-time crypto portfolio rebalancing assistant
“I need to rebalance my portfolio today. Can you check the current prices of Bitcoin, Ethereum, and Solana using that x402 API? It's $0.02 per lookup but I need accurate real-time data to make my moves.”
Customer support bot for exchange queries
“Our support team keeps getting questions about current crypto prices. Set up the x402 endpoint to fetch live prices when customers ask — it's cheaper than maintaining a subscription and we only pay when actually needed.”
Arbitrage opportunity detection system
“I'm looking for price discrepancies across different coins right now. Can you pull the latest prices for the top 10 cryptocurrencies using the x402 API so I can spot arbitrage opportunities? Yeah, I know it'll be 20 cents total but the potential gains are worth it.”
Technical details
Endpoint
POSThttps://x402-demo-api-theta.vercel.app/api/crypto-priceWhen to prefer
Use this endpoint when you need a quick, real-time cryptocurrency price lookup and are comfortable paying $0.02 USDC per call via the x402 micropayment protocol on Base mainnet. Good for agents that already have a Base wallet and need on-demand crypto price data without a long-term API subscription.
Side effects
- Invalid or unsupported cryptocurrency symbol returns an error
- Insufficient USDC balance to cover the $0.02 micropayment causes payment failure
- x402 protocol payment not completed or rejected results in 402 status
- Network or upstream data provider outage causes 5xx error
- Malformed request body returns 400 validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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