The Lombard SDK

The Lombard SDK is a complete, deployment-ready toolkit that packages Lombard's proven Bitcoin infrastructure into modular components developers can integrate directly into their applications. It provides everything needed to launch Bitcoin products at scale, from established Bitcoin assets like LBTC & BTC.b to complete integration flows and institutional security controls, all built on infrastructure that powers over $3 billion in assets.

It is the first tool available within Bitcoin Connect, Lombard’s developer platform for building Bitcoin products on any chain, protocol or application.

Rather than building and maintaining Bitcoin infrastructure in-house, teams integrate the SDK to access the same assets, flows, and security model that Lombard operates at institutional scale. The SDK connects applications directly to Lombard's live, production infrastructure.

Start building!

Get up and running in 5 minutes. Integrate Bitcoin utility directly into your application with our deployment-ready toolkit that powers over $3 billion in assets.

Quickstart Guide


What Lombard SDK Is (and Is Not)

The Lombard SDK is:

  • A complete Bitcoin infrastructure toolkit delivered through a unified integration surface

  • A production-tested system designed for live deployment at scale

  • An abstraction over Bitcoin custody, minting, redemption, settlement, security, and monitoring

  • A maintained system that evolves as new assets, chains, and capabilities are introduced

  • A modular set of SDKs that can be enabled incrementally as product needs evolve

The Lombard SDK is not:

  • A single-purpose API or isolated service

  • A custodial wallet or consumer-facing application

  • A toolkit that requires operating validators, bridges, or security systems


What Teams Build with Lombard SDK


What's Included in The Lombard SDK

The SDK includes everything developers need to ship great Bitcoin products fast:

  • Plug-in BTC Infrastructure: Integrate BTC assets, mints & redemptions, routing, and yield strategies into your product

  • Live Playground: for testing code in real time and debugging. Includes detailed live codes, and concrete endpoints.

  • Institutional-grade Security Controls: Leverage the same Security Consortium, and institutional security and audit controls securing the Lombard Protocol

  • Unmatched White-glove Builder Support: The most comprehensive docs, user guides, 24/7 support, and ongoing maintenance by Lombard.

The SDK is modular: integrate specific capabilities as needed, launch on any supported chain, and scale without rebuilding infrastructure for each deployment.


Who Integrates Lombard SDK

Exchanges: Launch BTC assets, minting, redemption, and yield without operating infrastructure

Wallets: Offer Bitcoin earning and strategy execution without embedding custody or routing systems

Protocols: Accept Bitcoin-backed assets or enable native minting

Custodians: Add onchain Bitcoin functionality while maintaining custody controls

Financial Institutions: Integrate Bitcoin flows with explicit validation assumptions

Staking Providers: Extend services to Bitcoin without building Bitcoin-specific infrastructure

From exchanges, institutions and wallets to staking providers and custodians, leading global teams already power their Bitcoin products through the Lombard SDK.


For Developers: How The SDK Documentation Is Structured

The SDK documentation is organized to guide developers from evaluation to integration and long-term operation:

Quickstart: High-level overview and guidance on where to find key information

User Guides: Step-by-step implementations and endpoints for each capability

Playground: Live code and example configurations for testing and debugging

FAQ: Common integration and operational questions

Support: Integration assistance and builder support

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