Skip to main content
Sundial Protocol is a Bitcoin-native DeFi platform that lets you earn yield on BTC and ADA while benefiting from high-throughput Layer 2 infrastructure built on Cardano. Whether you’re a user looking to stake, a developer integrating the SDK, or a network participant running a node, this documentation covers everything you need.

Introduction

Learn what Sundial Protocol is and how it works at a high level.

Quick Start

Get up and running with Sundial in minutes.

Testnet Guide

Try Sundial on testnet with free sBTC from the faucet.

Node API Reference

Explore the full Sundial node API endpoints.

​
Explore by Role

Stake BTC

Lock Bitcoin and earn yield via the BTC Locker protocol.

Stake ADA

Stake ADA on Sundial’s Layer 2 and earn rewards.

Run a Node

Operate a Sundial layer node and earn block rewards.

Watch the Network

Submit fraud proofs and earn bounties as a Prover.

Accelerate Transfers

Fast-track deposits and withdrawals as a Facilitator.

BTC Locker SDK

Build Bitcoin staking flows with the BTC Locker library.

​
Key Protocol Components

L2 Optimistic Rollup

How Sundial scales Cardano to 2,000–5,000 TPS with fraud proofs.

Charms Bridge

Cross-chain Bitcoin transfers using zk-SNARK verification.

Alchemy (FIRE & ICE)

Bitcoin reserve assets offering differentiated risk/reward profiles.

Fraud Proofs

How the network detects and penalizes invalid blocks.