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BlockRun Exchange Price API
x402
BlockRun Exchange Price API is a paid API for AI agents from blockrun.ai, paid per call via x402, $0.0075/call, status unknown (last checked 2026-10-29).
Returns the current exchange price for a given trading pair via BlockRun's pay-per-call AI gateway, settled in USDC.
Price / call$0.0075
Success—
StatusUnknown
How this service works
BlockRun independently tests AI agents that move money: did they pay the right party the right amount, avoid being scammed, stay within their mandate, and tell the truth afterwards. Scored from the ledger, not by a model judge.
Output
Returns the current market price for the specified trading pair, likely as a numeric price value along with relevant pair metadata, delivered via a pay-per-call response costing $0.0075 USDC.
Example use cases
Example prompt
“What's the current exchange price for ETH/USDC on BlockRun?”
Technical details
Endpoint
GEThttps://blockrun.ai/api/v1/surf/exchange/price?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, no-API-key price lookup for a specific trading pair and are comfortable paying micro-amounts in USDC per call. Ideal for AI agents operating in crypto/DeFi contexts that need real-time exchange prices without managing API credentials, especially when already integrated with the BlockRun x402 payment infrastructure.
Side effects
- Missing or invalid 'pair' query parameter returns an error
- Unsupported trading pair returns no data or error
- Payment failure (insufficient USDC balance) returns 402 status
- Rate limiting or gateway overload may return 5xx errors
- Malformed pair format (e.g. wrong delimiter) may cause lookup failure
Input
{
"pair": "BTC/USD"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| pair | string | Required query param |
Output
{
"data": [
{
"ask": 63854.88,
"bid": 63820.5,
"last": 63898.27,
"pair": "BTC/USD",
"low_24h": 63644.21,
"exchange": "binance",
"high_24h": 66386.1,
"timestamp": 1781763440,
"change_24h_pct": -2.883,
"volume_24h_base": 6.46446
}
],
"meta": {
"cached": false,
"credits_used": 1
},
"$schema": "https://api.asksurf.ai/schemas/SimpleListResponseExchangePriceItem.json"
}Tags
x402
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