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ApexAPI Crypto Currency Converter
x402
ApexAPI Crypto Currency Converter is a paid API for AI agents from apex-api-gamma.vercel.app, paid per call via x402, $0.178097/call, status unknown (last checked 2026-09-13).
Converts between cryptocurrency pairs or calculates crypto conversion values using a search-style query
Price / call$0.178097
Success—
StatusUnknown
How this service works
Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.
Output
Returns the converted cryptocurrency amount and/or exchange rate between the specified crypto pair, based on the query provided.
Example use cases
Real-time portfolio rebalancing calculations
“I'm trying to rebalance my crypto portfolio. How much USDC would I need to get 5 ETH, and what's that worth in SOL right now?”
Cross-chain trading opportunity analysis
“Show me the current exchange rate between BTC and USDT, then tell me how many Solana tokens I could get with 2 Bitcoin.”
Quick micro-payment conversion checker
“A customer wants to pay me 0.3 ETH for a service, but I prefer to settle in USDC. What's that worth right now?”
Technical details
Endpoint
POSThttps://apex-api-gamma.vercel.app/api/crypto/convertWhen to prefer
Use this endpoint when you need a quick, pay-per-call crypto conversion without setting up API keys. Ideal for agents that need on-demand cryptocurrency conversion values across a broad range of crypto pairs, billed in USDC on Base.
Side effects
- Unsupported currency pair returns an error or empty result
- Malformed query string fails to parse correctly and returns an error
- Payment of 0.178097 USDC not received results in 402 Payment Required
- Downstream price feed unavailable causes 503 or stale data response
- Ambiguous query may return unexpected conversion direction or pair
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| query | string | Search query or input parameter |
Output
Schema · Response
{
"type": "object",
"description": "API response data"
}Tags
x402
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