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Why SpanDEX

Let's clarify some key concepts in DeFi: DEX aggregators and meta aggregators.

Why Aggregators?

Aggregators monitor liquidity across multiple DEXes. The benefits are numerous:

  • Better Prices: By indexing liquidity from various sources, aggregators find better prices for swaps than any single DEX could offer.
  • Reduced Slippage: Aggregators can split trades across multiple DEXes to minimize slippage, resulting in more favorable execution prices.
  • Atomic Swaps: Aggregators can facilitate complex trades that involve multiple tokens or routes, allowing users to swap tokens that may not have direct liquidity pools.

Why Meta Aggregators?

Meta aggregators automate the process of querying multiple DEX aggregators. The advantages include:

  • Expanded Liquidity: Not all aggregators cover the same DEXes or tokens. By using a meta aggregator, users can access a broader range of liquidity sources.
  • Optimal Pricing: Meta aggregators can compare quotes from different aggregators to ensure users receive the best possible price for their swaps.
  • Redundancy: If one aggregator is down or experiencing issues, a meta aggregator can fall back to other aggregators, ensuring continuous service.

And SpanDEX?

SpanDEX is an open-source meta aggregator library provides all the benefits of a meta aggregator in a developer-friendly package without any middlemen. Benefits:

  • Open Source: SpanDEX is fully open source, allowing developers to inspect, modify, and contribute to the codebase.
  • No Middlemen: SpanDEX interacts directly with DEX aggregators, eliminating a centralized meta-aggregation service that could introduce latency, fees, censorship, or single points of failure.
  • Customizable: Developers can choose which aggregators to include, configure settings, and extend functionality to suit their specific use cases.
  • Onchain Simulation: SpanDEX supports onchain simulation of swaps, allowing developers to verify quote accuracy, gas costs, and potential reverts before executing transactions.
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