Ledger Live Integrations — Ledger Developer Portal

Ledger Live integrations let apps and services interact with Ledger hardware wallets and Ledger Live features to provide a seamless, device-backed UX. Whether you are building a web dApp that signs transactions via WebUSB, a desktop partner using the Ledger Live API, or an enterprise integration using Ledger SDKs — this guide shows recommended patterns, security considerations, and example code to get started fast.

What “Ledger Live integrations” covers

• Connecting wallets via WebUSB / Ledger Bridge for in-browser flows.
• Using Ledger Live APIs and SDKs to query accounts, push transactions and subscribe to events.
• Partner onboarding patterns and deep linking into Ledger Live.
• Security & UX guidelines that keep private keys on the device.

Core building blocks

Quick example — request account & sign (JS)

Below is a compact example that sketches the common flow: request accounts, build a transaction, then prompt Ledger Live / device for signing.

// pseudo-code (high-level)
async function requestAccounts(){
  const accounts = await ledgerLive.fetch('/accounts'); // partner API
  return accounts;
}

async function signTx(tx){
  // build raw operation, then request signature via Ledger Live
  const sig = await ledgerLive.post('/sign', { tx });
  return sig;
}

Security-first integration tips

1. Never expose private keys: all signing must happen on the Ledger device. Your integration should only send unsigned payloads and receive back signed responses.
2. Verify addresses on-device: ensure the address shown in your app matches the one displayed on Ledger Live / device before broadcasting.
3. Use secure transport: always communicate with Ledger Live APIs over HTTPS and validate TLS certs; prefer mutual TLS for enterprise integrations.
4. Limit scopes & permissions: request the minimal set of capabilities necessary from partner accounts and APIs.
5. Sandbox & test: use testnets and emulators to validate flows before production rollout.

Onboarding partners & UX patterns

Great Ledger Live integrations minimize friction: show clear steps (“connect device”, “open Ledger Live”, “confirm on device”), handle device timeouts gracefully, provide copy/paste-safe unsigned payloads for air-gapped signing, and always surface meaningful error messages. Provide deep-link buttons that open Ledger Live directly to a signing screen where possible for a single-click experience.

Monitoring, telemetry & compliance

For enterprise or regulated integrations, design audit trails that record unsigned payloads, signed responses, and confirmation timestamps. Ensure you comply with regional data handling laws and provide users a way to review activity and revoke device sessions.

Common pitfalls & troubleshooting

• Device not discovered — check USB permissions, Bridge installation, and browser WebUSB support.
• Signature mismatch — ensure correct transaction serialization and canonical encoding.
• Stale account data — re-query accounts after network changes or prior to signing.

Getting started resources

Download SDKs, review API reference, and explore example repos on the Ledger Developer Portal. Use the official testnets and emulators for rapid iteration.

FAQ