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OnchainExpat x402 Stock Quote API
x402
OnchainExpat x402 Stock Quote API is a paid API for AI agents from x402.onchainexpat.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Fetches a real-time stock price quote for a given ticker symbol via pay-per-request x402 micropayment protocol
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-request AI, crypto, proxy, and utility APIs using x402 protocol
Output
Returns a JSON object containing the real-time stock quote for the requested ticker, including current price and associated market metadata such as symbol, price, change, and volume indicators.
Example use cases
Portfolio performance monitoring agent
“Check the latest prices for Apple, Microsoft, and Tesla so I can see how my portfolio is doing right now”
Real-time trading alert system
“What's the current price of Bitcoin stock tickers and major tech stocks? I need to track if any hit my alert thresholds”
Investment research comparison tool
“Pull the live prices for Nvidia, AMD, and Intel so I can compare their current valuations while researching semiconductor companies”
Technical details
Endpoint
POSThttps://x402.onchainexpat.com/api/x402-tools/stocks/quoteWhen to prefer
Choose this endpoint when you need a real-time stock price quote via a pay-per-request micropayment model (x402/USDC) without a subscription, especially useful for AI agents that need on-demand financial data with per-call billing rather than a monthly API key plan.
Side effects
- Invalid or unrecognized ticker symbol returns an error response
- Payment failure or insufficient USDC balance prevents request from being fulfilled
- Market closed or after-hours may return stale or unavailable quote data
- Malformed POST body missing the ticker parameter returns a validation error
- Rate limiting or service downtime returns a 5xx error
Input
{
"symbol": "AAPL"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| symbolrequired | string | Stock ticker symbol, e.g. 'AAPL', 'TSLA', 'GOOGL' |
Output
{
"low": 294.36,
"high": 302.07,
"open": 300.845,
"price": 295.95,
"cached": false,
"change": -3.29,
"symbol": "AAPL",
"volume": 42745060,
"change_percent": "-1.0995",
"previous_close": 299.24,
"latest_trading_day": "2026-06-17"
}Schema · Response
| Field | Type | Description |
|---|---|---|
| price | number | |
| cached | boolean | |
| change | number | |
| symbol | string | |
| volume | integer | |
| change_pct | number |
Tags
x402
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