Loops House
Road To Devcon - I
Reading Ethereum
In 2026, Ethereum turns 11. Eleven years since a genesis block turned an experiment into the base layer for a global builder economy. To mark it, we're running 11 weeks of Build Battles, one for every year of Ethereum's life, every weekend as part of Road to Devcon.
New dev challenge drops every weekend, welcome to the first chapter.
Throughout ancient Indian dynasties, royal decrees, tax records, and grand land grants were etched into Tamra-Patra (copper plates) or carved into temple rock faces using specialized Brahmi scripts.
Today, the Ethereum blockchain functions as our digital Tamra-Patra, an unyielding, immortal ledger recording every transfer of value and agreement.
This weekend, you would be building a focused mini block-explorer around one lens, e.g. gas-usage trends, failed transactions, or MEV-adjacent activity using only direct RPC calls, no third-party indexer. A raw-data decoder that turns calldata and event logs into human-readable transaction stories in real time, via RPC subscriptions/websockets rather than a pre-built API.
FAQ
Frequently asked questions
How does scoring work?
Submissions are scored by an AI judge against each problem's judging criteria. Your best problem score becomes your battle score, and ratings update once results are finalized.
Can I work in a team?
No, this is a solo build battle.
What do I need to submit?
A GitHub repository with your working project. You can keep updating your submission until the build window closes.
Final leaderboard
1 commits1 contributorlast push Aug 23
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
1 commits1 contributorlast push Aug 22
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
1 commits1 contributorlast push Aug 22
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
1 commits1 contributorlast push Aug 22
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
Complete wallet transfer history using Alchemy Transfers API — all categories, both directions, and full pagination.
3 commits1 contributorlast push Aug 22
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
Complete Ethereum wallet activity feed using Alchemy Transfers API with multi-category transfers, bidirectional history, pagination, timestamps, and NFT support.
3 commits1 contributorlast push Aug 22
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
2 commits1 contributorlast push Aug 22
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
A direct Alchemy Transfers API wallet activity explorer with full pagination, bidirectional history, and human-readable output.
4 commits1 contributorlast push Aug 23
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
1 commits1 contributorlast push Aug 21
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
3 commits1 contributorlast push Aug 22
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
2 commits1 contributorlast push Aug 23
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
High-performance TypeScript engine & glassmorphism web UI for querying, merging, and chronologically sorting complete Ethereum wallet activity feeds via Alchemy Data API.
3 commits1 contributorlast push Aug 23
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
7 commits1 contributorlast push Aug 23
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
14 commits1 contributorlast push Aug 22
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)The Multi-Chain Bag Nobody Can Total Up
An X-ray for wallet activity.
1 commits1 contributorlast push Aug 22
The Wallet That Won't Explain ItselfThe Multi-Chain Bag Nobody Can Total Up
3 commits1 contributorlast push Aug 22
The Wallet That Won't Explain ItselfThe Multi-Chain Bag Nobody Can Total Up
1 commits1 contributorlast push Aug 23
The Wallet That Won't Explain ItselfThe Alert That Fired Twice (Or Never)
A TypeScript CLI wallet activity feed using Alchemy Transfers API to fetch, paginate, deduplicate, and display complete Ethereum wallet transfer history.
5 commits1 contributorlast push Aug 22
The Wallet That Won't Explain ItselfThe Multi-Chain Bag Nobody Can Total Up
15 commits1 contributorlast push Aug 23
1 commits1 contributorlast push Aug 23
The Wallet That Won't Explain Itself
1 commits1 contributorlast push Aug 22
Ethereum wallet activity feed CLI that fetches, merges, and chronologically displays on-chain transfers across multiple categories.
2 commits1 contributorlast push Aug 22
13 commits1 contributorlast push Aug 23
1 commits1 contributorlast push Aug 23
13 commits1 contributorlast push Aug 23
2 commits1 contributorlast push Aug 23
1 commits1 contributorlast push Aug 22
2 commits1 contributorlast push Aug 23
2 commits1 contributorlast push Aug 23
1 commits1 contributorlast push Aug 22
1 commits1 contributorlast push Aug 23
1 commits1 contributorlast push Aug 23
14 commits1 contributorlast push Aug 22
1 commits1 contributorlast push Aug 22
3 commits1 contributorlast push Aug 22
1 commits1 contributorlast push Aug 22
Complete Ethereum wallet activity feed using Alchemy Transfers API with multi-category transfers, bidirectional history, pagination, timestamps, and NFT support.
3 commits1 contributorlast push Aug 22
Complete wallet transfer history using Alchemy Transfers API — all categories, both directions, and full pagination.
3 commits1 contributorlast push Aug 22
A direct Alchemy Transfers API wallet activity explorer with full pagination, bidirectional history, and human-readable output.
4 commits1 contributorlast push Aug 23
High-performance TypeScript engine & glassmorphism web UI for querying, merging, and chronologically sorting complete Ethereum wallet activity feeds via Alchemy Data API.
3 commits1 contributorlast push Aug 23
1 commits1 contributorlast push Aug 21
3 commits1 contributorlast push Aug 22
Ethereum wallet activity feed CLI that fetches, merges, and chronologically displays on-chain transfers across multiple categories.
2 commits1 contributorlast push Aug 22
2 commits1 contributorlast push Aug 22
13 commits1 contributorlast push Aug 23
1 commits1 contributorlast push Aug 23
1 commits1 contributorlast push Aug 23
2 commits1 contributorlast push Aug 23
13 commits1 contributorlast push Aug 23
A TypeScript CLI wallet activity feed using Alchemy Transfers API to fetch, paginate, deduplicate, and display complete Ethereum wallet transfer history.
5 commits1 contributorlast push Aug 22
7 commits1 contributorlast push Aug 23
2 commits1 contributorlast push Aug 23
2 commits1 contributorlast push Aug 23
2 commits1 contributorlast push Aug 23
No submission made for this problem.
No submission made for this problem.
1 commits1 contributorlast push Aug 22
3 commits2 contributorslast push Aug 22
Built a TypeScript tool to track multi-chain token holdings, fetch real-time prices, and calculate portfolio value with chain-wise breakdowns and partial-failure detection.
3 commits1 contributorlast push Aug 22
2 commits1 contributorlast push Aug 22
2 commits1 contributorlast push Aug 21
1 commits1 contributorlast push Aug 22
Multi-chain Ethereum portfolio valuation tool for Road To Devcon - I, using Alchemy Portfolio and Prices APIs with partial-failure detection.
4 commits1 contributorlast push Aug 22
TypeScript CLI for trustworthy multi-chain wallet portfolio valuation with partial-failure and missing-price handling.
2 commits1 contributorlast push Aug 23
1 commits1 contributorlast push Aug 23
Multi-chain portfolio valuation CLI for Loops House Road To Devcon - I Problem 2
4 commits1 contributorlast push Aug 22
A TypeScript CLI wallet activity feed using Alchemy Transfers API to fetch, paginate, deduplicate, and display complete Ethereum wallet transfer history.
5 commits1 contributorlast push Aug 22
A multi-chain portfolio tracker that brings your holdings and current token prices into one clear view.
1 commits1 contributorlast push Aug 23
1 commits1 contributorlast push Aug 23
3 commits1 contributorlast push Aug 23
Multi-chain portfolio valuation CLI & web dashboard with robust partial-data error classification (Road to Devcon - I)
10 commits1 contributorlast push Aug 23
3 commits1 contributorlast push Aug 23
6 commits1 contributorlast push Aug 22
1 commits1 contributorlast push Aug 22
No submission made for this problem.
No submission made for this problem.
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1 commits1 contributorlast push Aug 22
15 commits1 contributorlast push Aug 23
1 commits1 contributorlast push Aug 23
2 commits2 contributorslast push Aug 22
Reorg-safe, zero-duplicate, zero-gap on-chain Ethereum event watcher service for Loops House Road to Devcon - I (Problem 3)
6 commits1 contributorlast push Aug 23
Reliable Ethereum event watcher with reorg safety and duplicate prevention
6 commits1 contributorlast push Aug 22
Reliable Ethereum event watcher with persistent checkpoints, pagination, reorg handling, and exactly-once alerts.
3 commits1 contributorlast push Aug 22
2 commits1 contributorlast push Aug 22
1 commits1 contributorlast push Aug 21
7 commits1 contributorlast push Aug 22
1 commits1 contributorlast push Aug 22
3 commits1 contributorlast push Aug 23
Reliable Ethereum event watcher with persistent checkpoints, reorg safety, deduplication, and resilient log pagination.
1 commits1 contributorlast push Aug 23
1 commits1 contributorlast push Aug 23
1 commits1 contributorlast push Aug 23
9 commits1 contributorlast push Aug 22
No submission made for this problem.
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