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Web3

Gas Fee Timing Advisor

Know the cheapest time to send a non-urgent transaction.

Beginner8h1 person16/20 fit
TL;DR

Build Gas Fee Timing Advisor for ethereum users in ~8h with 1 person. Stack: Viem + ECharts + Next.js.

Why it wins: Simple data project with daily use.

Build flow

01 · Problem
Users overpay fees by sending at busy times.
02 · Solution
Collect base fee history, show hourly patterns and alert when fees drop below a chosen level.
03 · Build
  1. 1Fetch fee history
  2. 2Aggregate by hour
  3. 3Chart
  4. 4Send alerts
04 · Demo
Show the weekly heatmap and set an alert.

MVP checklist

  • Fee history
  • Heatmap
  • Threshold alerts
  • Savings estimate

Tech stack

TechRole
ViemEthereum client
EChartsInteractive charts
Next.jsFrontend + API routes

Reference repos

Open-source projects you can build on. Links checked 2026-10-31.

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