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AUN Base Transaction Lookup
x402
AUN Base Transaction Lookup is a paid API for AI agents from a-upgradenet.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-22).
Looks up a Base chain transaction by hash and returns full details including status, gas, value, and ERC-20 token transfers
Price / call$0.002
Success—
StatusUnknown
How this service works
Base Transaction Lookup: status, from/to, value, fee, block and decoded ERC-20 transfers of a Base mainnet transaction. $0.002 per call.
Output
Returns a JSON object with the transaction's sender and recipient addresses, hash, chain identifier ('base'), found flag, completion status, ETH fee, gas used, transaction success status, ETH value transferred, block number, and an array of ERC-20 token transfer events each containing to/from addresses, raw amount, and token contract address.
Example use cases
Verify USDC payment on Base
“I just sent a USDC payment on Base — can you check transaction 0xabc123def456789abcdef0123456789abcdef0123456789abcdef0123456789ab and confirm it went through and who received the tokens?”
Confirm DeFi trade settled
“Check if my Base transaction 0x1a2b3c4d5e6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a2b was successful and tell me the gas fees and block number it landed in.”
Audit ERC-20 token transfer details
“I need to audit a token transfer — pull up Base tx 0xdeadbeef1234567890abcdef1234567890abcdef1234567890abcdef12345678 and show me all the ERC-20 transfers including the token contract addresses and amounts.”
Technical details
Endpoint
POSThttps://a-upgradenet.com/x402/base-tx?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to verify or inspect a specific Base chain transaction by its hash, especially when ERC-20 transfer details (like USDC amounts and recipients) are needed. Prefer this over generic block explorers when you need programmatic access to transaction data within an agent workflow, or when confirming payment receipt on the Base L2 network.
Side effects
- Transaction hash not found on Base — returns found: false
- Invalid hash format (not 66 chars or missing 0x prefix) — likely 400 error or empty result
- Transaction still pending — status may show as pending rather than completed
- Network timeout if Base RPC is congested
- Incorrect chain — hash exists on Ethereum mainnet but not Base
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| hash | string | 0x transaction hash (66 chars). |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "0x…",
"from": "0x…",
"hash": "0x…",
"chain": "base",
"found": true,
"status": "completed",
"fee_eth": "0.0000012",
"gas_used": "65000",
"tx_status": "success",
"value_eth": "0",
"block_number": "21000000",
"erc20_transfers": [
{
"to": "0x…",
"raw": "100000",
"from": "0x…",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}
]
}
}Tags
x402
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