0x Protocol
Swap aggregator protocol and APIs for DEX liquidity.
Open Source
Free
Freemium
7 APIs
Aave SDK
SDK and APIs for Aave lending markets and position management.
DeFi Primitives: DeFi, Lending
What can you build?
- Borrow/lend apps
- Yield aggregators
Open Source
Free
Aptos SDK
Official Aptos SDK for Move contracts, accounts, and transactions.
Open Source
Free
Jupiter SDK
Solana swap aggregator SDK for routing and DCA strategies.
Open Source
Free
Skip Protocol
MEV-aware routing and cross-chain swap infrastructure for Cosmos.
DeFi Primitives: Cross-chain, DeFi, Trading API
What can you build?
- Cross-chain swaps
- Relayer infra
Open Source
Free
Freemium
Stacks SDK
SDK for Bitcoin-anchored smart contracts on the Stacks layer.
Open Source
Free
Uniswap SDK
Official SDK for Uniswap swaps, routing, and liquidity management.
DeFi Primitives: DeFi, Trading API
What can you build?
- Token swaps
- Liquidity managers
Open Source
Free