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x402-gateway Crypto Price API
x402
x402-gateway Crypto Price API is a paid API for AI agents from x402-gateway-production.up.railway.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns real-time cryptocurrency prices for a specified coin in a specified fiat or crypto currency
Price / call$0.001
Success—
StatusUnknown
How this service works
Real-time cryptocurrency prices for any coin in any fiat currency
Output
Returns the real-time spot price of the requested cryptocurrency expressed in the specified fiat currency, likely including the coin symbol, currency code, and current price value.
Example use cases
Example prompt
“What's the current price of Ethereum in USD? Also check what Bitcoin is going for right now in EUR.”
Technical details
Endpoint
GEThttps://x402-gateway-production.up.railway.app/api/crypto/priceWhen to prefer
Use this endpoint when you need a quick, real-time spot price for a specific cryptocurrency in a specific fiat currency and are operating in an x402 payment-enabled agent context. Prefer this over scraping exchanges or using heavier financial data APIs when cost-per-call efficiency matters at $0.001 USDC.
Side effects
- Unknown or unsupported coin symbol returns an error
- Unsupported fiat currency code returns an error
- Downstream price feed unavailable causes timeout or 503
- Missing required fields in POST body returns 400 bad request
- Payment not attached or insufficient USDC causes 402 Payment Required
Input
{
"ids": "bitcoin,ethereum",
"vs_currencies": "usd,eur"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| idsrequired | string | |
| vs_currenciesrequired | string |
Output
{
"bitcoin": {
"usd": 63334,
"usd_24h_change": 1.8699412622147396
},
"ethereum": {
"usd": 1663.66,
"usd_24h_change": 1.2168375473760633
}
}Schema · Response
| Field | Type | Description |
|---|---|---|
| bitcoinrequired | object | |
| ethereumrequired | object |
Tags
x402
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