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Semilla1 TxCheck - Base Transaction Summary
x402
Semilla1 TxCheck - Base Transaction Summary is a paid API for AI agents from semilla1-txcheck.netlify.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-28).
Fetches a summary of a Base mainnet transaction by hash, returning status, gas usage, ETH value, and USDC transfer details
Price / call$0.01
Success—
StatusUnknown
How this service works
Resumen de una transacción de Base: estado, gas, transferencias USDC. Pago x402 v2: 0.01 USDC en Base (lote de hasta 10: 0.05 USDC; /balance, /tokens, /receipt: 0.005 USDC).
Output
Returns a JSON object with the queried transaction hash, status ('ok' or 'fallida'), block number, sender and recipient addresses, ETH value sent, gas used, fee in ETH, and an array of USDC transfer events parsed from the transaction logs (each with from, to, and USDC amount).
Example use cases
Verify USDC payment confirmation
“Did the USDC payment go through? Check Base transaction 0x811a2f5f216a87810a8ce59e645836544df7a4b5a66b0a3b048087a904637168 and tell me the status, who sent USDC, who received it, and how much.”
Debug failed transaction on Base
“I think my transaction failed on Base — can you check 0x3a9f2c1d4e5b6f7a8b9c0d1e2f3a4b5c6d7e8f9a0b1c2d3e4f5a6b7c8d9e0f1a and tell me the status, gas used, and fee paid?”
Audit gas costs for a Base tx
“How much gas and ETH fees were spent on Base transaction 0x1234abcd5678ef901234abcd5678ef901234abcd5678ef901234abcd5678ef90? I need the gas used and total fee in ETH.”
Technical details
Endpoint
GEThttps://semilla1-txcheck.netlify.app/tx?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pre-parsed summary of a Base mainnet transaction — especially when you care about USDC transfer logs decoded from raw event data. It is ideal for agents verifying payments, auditing gas costs, or checking transaction success without running a full blockchain node or parsing raw RPC responses manually. Prefer it over raw RPC calls when you want structured JSON output with USDC amounts already parsed.
Side effects
- Invalid hash format (not 0x + 64 hex chars) returns a validation error
- Transaction not found on Base mainnet returns an empty or error response
- Network timeout if Base RPC is slow or unavailable
- Payment failure if x402 USDC payment of 0.01 is not completed
- Transactions with no USDC transfers return an empty usdcTransfers array
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "0x5ff137d4b0fdcd49dca30c7cf57e578a026d2789",
"eth": 0,
"from": "0x1278c1e48e3c9548a5d9f2b16dc27ed311b0697c",
"hash": "0x811a2f5f216a87810a8ce59e645836544df7a4b5a66b0a3b048087a904637168",
"block": 52920980,
"feeEth": 0.000009421146,
"status": "ok",
"gasUsed": 1570191,
"usdcTransfers": [
{
"to": "0xa4ba7f4fca58c50df7232ba65e8d794f78dc65bc",
"from": "0x26572ff23c6c52bfb1a69cb0c9114a8be443b422",
"usdc": 1
}
]
}
}Tags
x402
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