Buenos Aires · Nov 21 – 23

Ledger × ETHGlobal Buenos Aires

Build Clear Signing experiences or Device Management Kit integrations. Meet our engineers, get live reviews, and aim for the $10,000 bounty pool.

Explore tracks

Total Bounty Pool

$10,000

Tracks

Live

Judging

New

Ledger Wallet Provider

Embed Ledger’s official connect flow directly inside your app. Handles USB/Bluetooth, enables Clear Signing, and provides a standard EIP-1193 provider for any framework.

Password:LedgerWalletProviderAlpha2025

Access Docs

Choose your track

Track 01

Clear Signing (ERC-7730)

$4,000

Enable human-readable signing for any dApp. Author ERC-7730 descriptors to decode complex transactions, or build the developer tooling needed to scale the standard.

Create JSON files for DeFi protocols→ Win a Ledger device
Build tooling for ERC-7730 creation/validation
Improve the JSON Builder

Resources

Clear Signing Docs JSON Registry (GitHub)JSON Builder Docs JSON Builder Repo (GitHub)Python Validator (PyPI)

1st Place

$2,500

2nd Place

$1,500

Track 02

Hardware Integrations

$5,000

Expand Ledger hardware support with the Device Management Kit. Add signers, upstream improvements, or build Discover Live Apps.

Implement DMK in popular Web3 connector libraries (ethers.js, wagmi, RainbowKit, web3-react, Reown AppKit, Web3Auth...)
Add a new Signer to the Device Management Kit
Build a Device App (C/Rust) or a Discover Live App

Resources

DMK Docs Signer Docs DMK (NPM)Signer (NPM)

1st Place

$3,000

2nd Place

$2,000

Track 03

Creativity Award

Rewarding surprising, high-impact ideas. Show us inventive Ledger tooling, DMK use cases, or Clear Signing experiences that change how people build.

Winner Takes All

$1,000

Documentation Feedback

We judge the Developer Experience (DX) feedback as much as the code. Help us improve our docs.

What to include

Feedback on overall experience using Ledger docs & SDKs
Identify gaps, confusing flows, or missing context
Specific improvements with screenshots or PRs

Bonus points

Better tutorial or code sample ideas
Navigation or search improvements for the portal
"Time-saver" suggestions for future integrators

Need support? Come see us at the booth or join our dedicated Telegram Support Group