# Understanding Actively Validated Services (AVSs) in DeFi

By [Ese Monday](https://paragraph.com/@esemonday-2) · 2024-06-15

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**What are AVSs?**

Actively Validated Services (AVSs) are a key innovation in the DeFi (Decentralized Finance) space. Unlike traditional blockchain validation methods, AVSs are independent systems within a blockchain ecosystem that perform their own validation for specific functionalities. These functionalities can include:

*   **Sidechains:** Scaling solutions that run alongside the main blockchain for faster transactions.
    
*   **Data Availability Layers:** Storing and guaranteeing the availability of off-chain data used by DeFi applications.
    
*   **New Virtual Machines:** Enabling the execution of smart contracts written in different languages.
    
*   **Keeper Networks:** Ensuring automated tasks are executed within DeFi protocols.
    
*   **Oracle Networks:** Providing reliable and secure external data feeds to DeFi applications.
    
*   **Bridges:** Facilitating communication and asset transfers between different blockchains.
    

**How AVSs Function:**

Each AVS operates with its own consensus mechanism, independent of the main blockchain. This allows for greater flexibility and customization compared to the traditional Proof-of-Work (PoW) or Proof-of-Stake (PoS) validation methods. Here's a simplified breakdown:

1.  **Transactions Submitted:** Users interact with DeFi applications, triggering transactions that involve AVSs.
    
2.  **AVS Validation:** The AVS utilizes its own consensus mechanism to validate the transaction's legitimacy within its specific functionality.
    
3.  **Results Reported:** The AVS reports the validation results to the main blockchain.
    
4.  **Blockchain Update:** Based on the AVS report and depending on the specific blockchain protocol, the main chain updates its state accordingly.
    

**Advantages of AVSs over Traditional Validation:**

*   **Scalability:** AVSs can offload validation tasks from the main blockchain, improving transaction throughput and reducing congestion.
    
*   **Flexibility:** Different AVSs can cater to specific functionalities, allowing for more innovative and tailored DeFi applications.
    
*   **Security:** By using diverse consensus mechanisms, AVSs can potentially decrease the risk of a single point of failure in the validation process.
    
*   **Efficiency:** AVSs can potentially achieve faster validation times compared to traditional methods.
    

**Real-World Use Cases of AVSs in DeFi:**

*   **dYdX (Margin Trading):** Utilizes an AVS called StarkNet, a scalable rollup solution, for faster and cheaper margin trading transactions.
    
*   **Chainlink (Oracle Network):** Acts as an AVS by providing secure and decentralized Oracle
    
*   services for reliable data feeds in DeFi applications.
    
*   **UMA (Synthetic Assets):** Leverages Optimism, another scalable rollup solution as an AVS, for efficient creation and trading of synthetic assets.
    

**Why AVSs are Crucial for Secure and Reliable DeFi Applications:**

*   **Improved Scalability:** AVSs can handle higher transaction volumes, enabling DeFi applications to serve a wider user base.
    
*   **Enhanced Security:** By distributing validation across different AVSs, DeFi becomes less susceptible to single points of attack.
    
*   **Greater Innovation:** AVSs pave the way for the development of more complex and feature-rich DeFi applications.
    
*   **Increased Efficiency:** Faster validation times through AVSs lead to a smoother user experience for DeFi interactions.
    

In conclusion, AVSs represent a significant advancement in the DeFi landscape. They offer a path towards scalability, enhanced security, and the creation of a more versatile and robust DeFi ecosystem. As the technology matures and adoption grows, AVSs have the potential to unlock the full potential of decentralized finance.

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*Originally published on [Ese Monday](https://paragraph.com/@esemonday-2/understanding-actively-validated-services-avss-in-defi)*