DefiLlama is a popular crypto data website that provides comprehensive information on various decentralized finance (DeFi) projects. It serves as an aggregator, offering data on decentralized exchanges (DEXs), lending platforms, yield farming projects, and more. With DefiLlama, users can easily access information about token prices, trading volumes, liquidity pools, stablecoin market capitalization, and filter it by blockchain or category.

How DefiLlama Works:
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DefiLlama works by aggregating on-chain DeFi data from various protocols and chains. It covers a wide range of projects, including DEXs, lending platforms, and liquid staking protocols. The platform aims to gather all DeFi data in one place, making it convenient for users to track the DeFi market across key metrics such as Total Value Locked (TVL), trading volume, and liquidity.

Data Aggregation:
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DefiLlama tracks thousands of protocols across major blockchains, including Ethereum, Polygon, Fantom, Cardano, Solana, and more. It also pulls data from 21 major NFT marketplaces, providing a comprehensive overview of the DeFi ecosystem. Some of the key data tracked by DefiLlama includes:

Yield Tracking: DefiLlama tracks and compares the yield that DeFi users can earn across different protocols and tokens.
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LlamaSwap: It offers a trading tool that automatically finds the best prices and lowest fees for token swaps.
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Token Unlock Updates: DefiLlama tracks when tokens are scheduled for release onto the market.
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Centralized Exchange (CEX) Transparency Monitor: It provides insights into the assets held by CEXs, offering transparency to users.
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Cross-Chain Bridge Data: DefiLlama helps track flows and volumes across blockchain bridges, enabling users to send cryptocurrency between blockchains.
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Governance Proposal Tracker: It provides data and links to monitor protocol governance via Decentralized Autonomous Organizations (DAOs).
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Hack/Exploit History: DefiLlama displays information about protocols that have been targeted by malicious actors, including the amounts lost and vulnerability descriptions.
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Borrow Aggregator: This tool simplifies lending and borrowing in DeFi by providing market-wide data, helping users filter out risky protocols and lending conditions.

Open-Source and Community-Driven:
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DefiLlama is an open-source project that prioritizes unbiased data aggregation. To list a protocol on the site, projects can submit code that returns on-chain TVL figures or an API or subgraph to outsource the job. DefiLlama adapters are also open-source, allowing projects to list themselves pending approval from the DefiLlama GitHub community. The data used by DefiLlama is sourced directly from the blockchain, ensuring accuracy based on the smart contracts that feed it.

Management and Expansion:
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DefiLlama is managed by a core team, some of whom are self-funded, while others are compensated as employees [2]. The team works closely with the wider public community, known as "The Llamas," who contribute to the project through GitHub repositories and social media platforms. The Llama community has a significant following on Twitter, a Discord community, and other social media outlets.