DeFi API Overview
Disclaimer
The cost and speed of transacting with blockchain-based systems are varied and may change significantly at any time, resulting in price and fee fluctuations. The actual prices and fees may vary from the information shown.
The expand.network by Blockdaemon DeFi API is a unified and standardized interface that enables seamless DeFi integration across 50+ blockchains and protocols. With over 170 endpoints, including DEXs, bridges, lending platforms, oracles, and liquid staking.
We connect developers, traders, wallets, institutions, and applications to the full breadth of DeFi infrastructure. Whether you need to perform same-chain token swaps or transfer assets across blockchains, expand.network by Blockdaemon provides the tools to support a wide range of decentralized application workflows.
Features
💰 Token Swaps
Swap tokens within or across chains for seamless and optimized asset transfers.
📈 Token Information
Retrieve data about various supported tokens.
🛒 Transaction Status
Monitor and fetch the status of cross-chain transactions.
🔗 Single API Integration
Transact and source data across EVM and Non-EVM chains (e.g., Ethereum, Solana, Bitcoin).
🔒 Security
Private keys never leave your environment; transactions are signed locally.
🏢 Institutional-Scale
Backed by Blockdaemon, a leader in blockchain infrastructure.
Use Cases
✅ Trade - Execute swaps via DEXs like Uniswap, PancakeSwap, Curve, etc., and cross-chain swaps via bridges such as Squid Router, Stargate, AllBridge, KyberSwap, and more.
✅ Lending/Borrowing- Integrate Aave, Compound, Morpho, Pendle, and others for liquidity management.
✅ Portfolio - Track performance across chains by pulling real-time balance data, setting alerts for changes, and automating rebalancing via API triggers.
✅ Build - Create DeFi apps and wallets by adding swap, lending, and reporting capabilities using Blockdaemon’s pre-built APIs.
✅ Data Sourcing - Access historical price data for tax compliance or risk analysis, monitor liquidity pools, and analyze transaction trends for trading strategies.
Getting Started
Log into your Blockdaemon account and go to the DeFi APIs section. No setup required, your free API key is already included in the code examples shown in the in-app Quickstart.
You can start:
- Generating transactions for DEX swaps or bridge transfers
- Receiving and signing transaction payloads
- Broadcasting transactions to the network
- Monitoring status across chains
To explore step-by-step workflows, check out the Same Chain Swap or Cross Chain Swap tutorials.
Roadmap Preview: Full Integration with Blockdaemon
We’re actively working on integrating expand.network into the Blockdaemon ecosystem. Full support is planned for Q3–Q4 2025, but in the meantime, you can explore core functionalities directly offered via expand.network, and can have an early access to build the rails for below use cases.
Get started now:
- Try it in the Playground → expand.network Playground
- Get your API Key → API key
🚀 What’s next?
As we move toward a full release, we want to hear from you! Your feedback helps us tailor our DeFi API to meet your specific use cases and development needs.
Once the upcoming features are fully integrated, you’ll gain access to:
🔐 Unified API Access
Access all DeFi endpoints with a single authenticated API key from Blockdaemon.
⚙️ Expanded Capabilities
Interact with lending, borrowing, yield aggregation, and liquid staking protocols — backed by enterprise-grade SLAs for reliability, uptime, and performance.
👋 Need Help?
Contact us through email or our support page for any issues, bugs, or assistance you may need.
Updated 18 days ago