New York · October 24-25, 2026

Ledger × XRPL Hackathon

A 36-hour sprint on the XRP Ledger, hosted by XRPL Commons in New York. Three tracks for teams building with Ledger as the trust layer: bring device-backed security to XRPL apps, build agentic payment flows, or take on the deep integration work, including things Ledger doesn't support yet.

Explore the tracks

Total Bounty Pool

$10,000

Tracks

36h

Sprint

Choose your track

Pick one track. Whatever you build, we want Ledger used as a real trust layer, not just wallet branding, and a working demo, ideally on the XRP Ledger or its EVM sidechain.

Track 01 · Core

Core Integrations

$4,000

The deep-integration track. Bring the modern Ledger stack into the XRPL ecosystem, and lean into the gaps. Ledger's XRP support is still legacy-shaped: the device app can sign a wide range of XRPL transactions, but Ledger Live only exposes basic send/receive, there is no XRP signer in the Device Management Kit, and no XRPL transaction Clear Signing. This track is your invitation to build the things we don't support yet. A rough prototype that fills a real gap beats a polished rebuild of something that already exists.

Example directions

Build an XRP signer kit for the Device Management Kit: the missing device-signer-kit-xrp, wrapping the on-device XRP app over its public APDU protocol. The DMK and its ETH and Solana kits are open source, so fork one as your template.
Prototype human-readable previews for XRPL transactions: a metadata format plus an in-app parser that turns TrustSet, OfferCreate, AMM or Escrow payloads into plain-language summaries before you sign, extending the Clear Signing idea beyond EVM / ERC-7730.
Ship a Ledger-secured DEX / AMM / trustline dApp for the flows Ledger Live can't do today: set trustlines, place order-book offers, add AMM liquidity, all signed on-device.
Use Ledger's Ethereum signer on the XRPL EVM sidechain (chain ID 1440000): deploy or consume a contract and sign with the ETH DMK signer plus Clear Signing.
Build a Xaman xApp (or wallet integration) with Ledger signing, bringing cold-storage security to a tool people already use.
Device-signed tooling for NFTs (XLS-20), Escrow / Payment Channels, DIDs & Credentials, or multisig treasuries, all signable by the XRP app but unserved by the modern SDK.

What we like

Fills a real gap in the Ledger × XRPL stack.
Reusable by other developers: a library, not a one-off.
Signs on a real device against testnet or the EVM sidechain.

Ledger

DMK Docs Signer Docs Clear Signing Docs hw-app-xrp XRP Device App

XRPL

XRPL Docs xrpl.js XRPL EVM Docs Xaman Dev

Track 02$4,000

Agentic Finance

Build across the full agentic stack with Ledger as the trust layer. Finance is a strong angle but not a requirement. We want projects where device-backed security is central: agents that pay for tools and services, human-in-the-loop approval for sensitive actions, and copilots that make autonomous behavior safer instead of bypassing user intent. XRP's fast, low-cost settlement is a natural rail when money does move.

Example directions

Agents that pay for APIs, tools, or services with Ledger-secured flows, including x402-style pay-per-use patterns.
Human-in-the-loop agents where Ledger approves high-risk actions before funds move or permissions escalate.
Ledger-backed identity, credentials, or policy-based spending limits for autonomous systems.
Copilots that explain transactions, simulate outcomes, or surface risks before you sign.

Resources

AI Tools DMK skills Ledger Wallet Provider Clear Signing Docs

Track 03$2,000

Creative Minds

The open track. Build whatever you want with Ledger; it doesn't even need to be XRPL-specific: consumer apps, wallet UX, security tooling, tipping, games, education. Great for teams with an idea that doesn't fit neatly into the other two tracks.

Example directions

A polished consumer app or wallet experience, on XRPL or any chain, that signs with a Ledger device.
Tooling that makes XRPL safer or easier to use: transaction previews, address books, monitoring.
Something fun: an on-chain game, a collectible, or an interactive demo backed by device signing.

Resources

Signer Docs Clear Signing Docs Ledger Wallet Provider XRPL Docs

Total bounty pool of $10,000, split across the three tracks. Prize breakdown to be confirmed.

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 support group