Cannes · April 3 – 5, 2026

Ledger × ETHGlobal Cannes 2026

Build secure signing flows, device integrations, or AI-powered Ledger experiences in Cannes. Meet our engineers, get live reviews, and aim for the $10,000 bounty pool.

Explore tracks

Total Bounty Pool

$10,000

Tracks

Live

Judging

Choose your track

Track 01$6,000

AI Agents x Ledger

Build AI agents and AI-powered products that use Ledger as the trust layer. Secure agent payments, authenticate autonomous systems, add human approval for sensitive actions, or create copilots that make signing and payment flows safer and easier.

Build agents that pay for APIs, tools, or services with Ledger-secured payment flows, including x402-style experiences
Create human-in-the-loop agents where Ledger approves high-risk actions before funds move or permissions escalate
Use Ledger as the trust layer for AI with device-backed identity, authentication, credentials, or policy-based spending
Build AI copilots that explain transactions, simulate outcomes, or surface risks in complex flows
Create developer agents that help teams integrate Ledger SDKs, generate Clear Signing artifacts, or validate implementation flows

Resources

Clear Signing Docs DMK Docs Ledger Wallet Provider Signer Docs

1st Place

$3,000

2nd Place

$2,000

3rd Place

$1,000

Track 02$4,000

Clear Signing, Integrations & Apps

Build projects that improve how people sign, integrate, and build with Ledger, from Clear Signing and wallet integrations to device and Live App experiences.

Create Clear Signing JSON files or build tooling that helps protocols and apps generate, validate, and test them→ Win a Ledger device
Extend Ledger support across wallets, apps, and protocols by integrating DMK into popular libraries, building new signer integrations, or embedding Ledger Wallet Provider in app flows
Build device apps or apps for Ledger Wallet’s Discover section that bring new Ledger-powered experiences to users

Resources

Clear Signing Docs JSON Registry (GitHub)DMK Docs Signer Docs Ledger Wallet Provider Device App Docs

1st Place

$2,500

2nd Place

$1,500

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