Open DotSwap

Introduction

DotSwap Nexus is the decentralized coordination engine that powers non-custodial, peer-to-peer swaps on the Bitcoin network. Built with Bitcoin-native primitives like PSBTs and multi-signature wallets, Nexus enables secure liquidity aggregation and automated trade execution without relying on smart contracts.

Nexus acts as a self-hosted gateway for liquidity providers, market makers, and integrators to participate in the DotSwap protocol in a trustless manner.

Key Features

  • Bitcoin-Native Design: Fully aligned with Bitcoin’s UTXO model and built on PSBT and native multisig standards.

  • Self-Hosted Node: Developers run their own Nexus node to participate in liquidity provision, trade coordination, and signing.

  • Liquidity Curve API: Market makers expose their bid/ask curves to the network via HTTP endpoints.

  • PSBT Signing Workflow: Nexus supports automated threshold signing and validation of PSBTs for secure on-chain settlement.

  • Stateless Coordination: Nexus does not store user funds or private keys. All activity is coordinated cryptographically.

System Architecture

  • API Server: Listens for incoming trade intents and curve queries.

  • Execution Engine: Matches swap requests to available liquidity across multiple nodes.

  • Threshold Signing Service: Coordinates multisig or MPC-based co-signing of PSBTs.

  • Bridge Layer: Facilitates secure communication between the frontend interface and back-end liquidity providers.

Use Cases

  • Run a Nexus Node: Participate as a liquidity provider in the DotSwap network.

  • Integrate Liquidity Intent Curves: Connect your own pricing algorithms or market-making logic.

  • Develop Custom Frontends: Leverage Nexus as a backend to power your own wallet, aggregator, or trading interface.

Getting Started

  • Visit the official GitHub repository for source code, configuration templates, and deployment scripts.

  • Explore example integrations in our SDK library.

  • Join the DotSwap developer community on Discord for technical support.

By running or integrating with Nexus, you help strengthen the decentralized liquidity fabric of Bitcoin. Let's build the future of Bitcoin-native finance together.

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