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Crypto Shark Bazaar – Chain Receipt Lookup
x402
Crypto Shark Bazaar – Chain Receipt Lookup is a paid API for AI agents from cryptoshark.duckdns.org, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Retrieves blockchain transaction receipt data for a given transaction on the Base network
Price / call$0.005
Success—
StatusUnknown
How this service works
Low-cost x402 blockchain primitives, market intelligence, and AI utilities for autonomous agents
Output
Returns a JSON object containing the blockchain network (e.g. 'base') and the timestamp at which the transaction was observed (observedAt in ISO 8601 format), along with any additional receipt fields captured at query time.
Example use cases
Verify payment confirmation on Base
“I just sent a USDC payment on Base — can you fetch the chain receipt and confirm it went through?”
Audit agent-initiated blockchain transactions
“My autonomous agent made a transaction on the Base network a few minutes ago — pull the receipt so I can verify it was recorded correctly.”
Monitor x402 payment settlement
“We processed an x402 micropayment on Base — can you retrieve the transaction receipt so I can check the observed timestamp and network details?”
Technical details
Endpoint
GEThttps://cryptoshark.duckdns.org/chain/receipt?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a low-cost ($0.005 USDC) on-chain receipt lookup specifically on the Base network and are already operating within an x402 micropayment-compatible agent framework. Prefer this over heavier blockchain explorer APIs when you want a lightweight, agent-native primitive without complex authentication overhead.
Side effects
- Missing or malformed transaction properties in the request may return an empty or null response
- Transaction not yet indexed may result in a not-found response
- Network congestion or node unavailability may cause timeouts
- Invalid property format may return a 400-level error
- The DuckDNS dynamic domain may occasionally be unreachable if the host's IP changes
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"network": "base",
"observedAt": "2026-09-16T00:00:00.000Z"
}
}Tags
x402
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