Endpoints: 28,729MCP servers: 18,413Payout addresses: 2,070Paid calls: 1,530Letters: 13Defects: 1,322counted 3 min ago
teppi

Endpoint · onchainGETmachinemint-native-x402-production.up.railway.app/v1/base-preflight?data=0x&from=0x4200000000000000000000000000000000000006&to=0x1111111111111111111111111111111111111111&value=0

Check an unsigned Base mainnet transaction before signing or broadcasting.
Read moreCheck an unsigned Base mainnet transaction before signing or broadcasting. Simulates with eth_call, estimates gas, checks sender balance and target bytecode, decodes supported token transfers and approvals, flags unlimited approvals and suspicious transaction shapes, and returns PASS, REVIEW, or FAIL. Never signs or broadcasts.
UNRATEDListedProse in the URL

Overview

Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.01 per call
Paid calls
none yet
delivery unknown until someone pays

More info

Seller?
0xe43e47dd…c2f36c80
URL
https://machinemint-native-x402-production.up.railway.app/v1/base-preflight?data=0x&from=0x4200000000000000000000000000000000000006&to=0x1111111111111111111111111111111111111111&value=0
Seen
first 34 days ago · last 12 hr ago
63 free handshakes

Payment

Pays through
x402
Offered on?
Base USDC
Listed on?
Base

About

?Description
Check an unsigned Base mainnet transaction before signing or broadcasting. Simulates with eth_call, estimates gas, checks sender balance and target bytecode, decodes supported token transfers and approvals, flags unlimited approvals and suspicious transaction shapes, and returns PASS, REVIEW, or FAIL. Never signs or broadcasts.
URL
https://machinemint-native-x402-production.up.railway.app/v1/base-preflight?data=0x&from=0x4200000000000000000000000000000000000006&to=0x1111111111111111111111111111111111111111&value=0
Method
GET
Class
onchain
?Checkable to
L1
Endpoint id
cap_01M1A5AFZ2XM17223PZRVJNJHW
?Badge

Reads live. UNRATED until paid calls earn a letter.

Markdown
[![Teppi](https://api.teppi.xyz/badge/cap_01M1A5AFZ2XM17223PZRVJNJHW.svg)](https://teppi.xyz/endpoint/cap_01M1A5AFZ2XM17223PZRVJNJHW)
HTML
<a href="https://teppi.xyz/endpoint/cap_01M1A5AFZ2XM17223PZRVJNJHW"><img src="https://api.teppi.xyz/badge/cap_01M1A5AFZ2XM17223PZRVJNJHW.svg" alt="Teppi delivery record"></a>
Image
https://api.teppi.xyz/badge/cap_01M1A5AFZ2XM17223PZRVJNJHW.svg
Verify it yourselfnpx teppi-check https://machinemint-native-x402-production.up.railway.app/v1/base-preflight?data=0x&from=0x4200000000000000000000000000000000000006&to=0x1111111111111111111111111111111111111111&value=0curl -s https://api.teppi.xyz/v1/trust/cap_01M1A5AFZ2XM17223PZRVJNJHW