Cross chain Swaps and Beyond with 1inch
summary
1inch runs on 12 EVM chains plus Solana and claims 3 million users, $55 billion available liquidity and $500 billion routed volume. Classic aggregation splits trades across AMMs for gas and price optimization while Fusion posts intent orders as Dutch auctions with competing resolvers and recorded partial fills (example multi‑minute fills for large orders). Fusion Plus executes trustless cross‑chain swaps using hashed timelock contracts with escrow safety deposits, a relayer, and developer tooling including Typescript and Golang SDKs, REST APIs and a cloud proxy for API key security.
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chapters (31)
- 0:00Introduction
- 0:301inch Overview & Market Position
- 1:19Supported Chains & Solana Launch
- 1:41Classic Swap Aggregation Explained
- 2:21Aggregator Pathfinding & Optimization
- 3:36Gas Efficiency Comparison
- 4:19Introduction to 1inch Fusion
- 4:42Dutch Auctions & Resolvers
- 5:55Dutch Auction Mechanics
- 6:16Fusion Swap Example Walkthrough
- 7:28Real-World Fusion Swap Case Study
- 8:08Liquidity Sourcing for Resolvers
- 8:48Introduction to Fusion Plus (Cross-Chain)
- 9:05Cross-Chain Design & HTLCs
- 9:39HTLC Mechanism Explained
- 10:37Cross-Chain Swap Example
- 11:29Escrow Contracts & Safety Deposits
- 12:11Role of the Relayer
- 12:49Secret Release & Finalization
- 13:26Non-EVM Chain Extensions & Hackathon Focus
- 14:04Integrating 1inch: Developer Portal & APIs
- 14:56API Documentation & Dashboard
- 15:14SDKs & Proxy Usage
- 16:29Cloud Proxy for API Security
- 17:01Additional API Suite (Token, Wallet, NFT Data)
- 17:20Hackathon Bounties & Opportunities
- 18:14Accessing Resources & Q&A
- 18:48Q&A: Resolver Profit & Arbitrage
- 20:11Q&A: Price Impact, Market Makers, and Dutch Auctions
- 22:26Q&A: Spot Price vs Market Rate
- 24:15Conclusion
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