Introduction
Welcome to the Nexus Developer Documentation — your gateway to building on the leading decentralized exchange infrastructure for Bitcoin-native assets.
What is Nexus?
Nexus is a trustless, non-custodial trading protocol built specifically for the Bitcoin ecosystem. By leveraging Partially Signed Bitcoin Transactions (PSBTs), multi-signature wallets, and UTXO-based liquidity models, Nexus empowers users to swap Bitcoin-native assets directly — without wrapped tokens, centralized custodians, or smart contracts.
At its core is Nexus, a coordination layer and liquidity aggregator that enables self-hosted market makers to contribute to a unified order flow while retaining full control of their funds.
What Can Developers Do?
Nexus offers a robust, modular developer stack for integrating, building, and contributing to Bitcoin-native DeFi:
Run a Nexus Node
Set up your own node to act as a liquidity provider or custom market maker.
Market Making API
Programmatically manage your liquidity intentions and trading strategies.
Swap Integration
Integrate swap capabilities into your dApp, wallet, or frontend.
Custom Protocol Extensions
Build on top of Nexus primitives (e.g. LP pools, channels, limit orders).
Query APIs
Access pool data, trading history, and swap quotes via open endpoints.
Tools & Resources
Open-source SDKs for JavaScript and TypeScript
RESTful APIs for pool data, quotes, and swap generation
Dockerized node templates for rapid Nexus deployment
Signature templates for handling PSBT signing flows
GitBook Docs for architecture, flows, and examples
System Requirements
Running a Nexus node requires:
A public IP address or domain
A server or VPS with Docker installed
Bitcoin Core node (recommended in pruned mode)
Basic familiarity with JSON and HTTP APIs
Join the Ecosystem
Whether you’re building a wallet, launching a token, or operating a market-making bot, Nexus provides the tools and primitives to innovate securely on Bitcoin. With a growing ecosystem and developer-first focus, we invite you to:
Fork our open-source templates
Launch your liquidity strategy
Extend Nexus with your own logic
Contribute to protocol improvement proposals
Telegram: https://t.me/NexusGroup
Discord: https://discord.gg/HR8hksbcQs
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