Base Tx Preflight for Claude Code
com.madebydevx.preflight/preflight
Simulate a Base tx before signing: revert reason, gas limit, full fee in ETH/USD. Paid x402.
client:Claude Code
transport:streamable-http
tools:2
Install Base Tx Preflight in Claude Code
run in your project directory
claude mcp add --transport http preflight https://preflight.madebydevx.com/mcp
Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs