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Chainlink Features and Reviews

Chainlink is a decentralized oracle network (DON) that allows for the secure transfer of real-world data onto blockchain networks. 


Chainlink is a network of nodes that supplies blockchain smart contracts with data and information from non-blockchain sources using oracles. Smart contracts require off-chain data in an on-chain format to build agreements apart from those relating to data contained on the blockchain.

A major limitation in using smart contracts is that external sources and the blockchain network do not communicate in a language that both parties understand. This is where oracles come into play.

Think of an oracle as a “middleman.” It translates real-world data into smart contracts on the blockchain and vice versa. Oracles supply data. They provide real-world data to the blockchain and, in turn, the smart contract.

Oracles help real-world data to go into the blockchain, making it possible for smart contracts to interpret, draw conclusions and make transactions. 

So, what makes Chainlink so important? An oracle like Chainlink will play a vital role in the viability and the long-term stability of blockchain and cryptocurrencies. Industries such as supply chain, insurance, securities, and anywhere that requires data stamps and proof of events can all use Chainlink.

Since its release, Chainlink has set itself as one of the most commonly used and trusted projects for oracle services within the crypto space. Many successful DeFi protocols such as Aave, yearn.finance, and crypto.com rely on Chainlink for providing accurate real-world data.

Product Details

Chainlink makes it easier for enterprises and governments to adopt blockchain. Chainlink’s oracle infrastructure lets governments and enterprises securely connect their systems to the blockchain network. Organizations can use Chainlink to read data from their systems and write smart contracts.

Smart contracts help businesses secure existing workflows, mitigate risks, and reduce overhead. Businesses can also generate revenue using Chainlink by providing a secure source of real-world data and off-chain computing to hybrid smart contracts.

Chainlink aims to become a bridge between traditional information and blockchain. Chainlink oracles can write Datasets, APIs, and any other external source to smart contracts. Projects that require external data will find this highly beneficial. The Chainlink project allows for cross-chain compatibility between Bitcoin, Ethereum and connects payment providers and banks to the blockchain network.

On-chain money markets protocols like Aave, Compound, and Rari Capital employ Chainlink Price Feeds to get market data for dozens of different on-chain cryptocurrencies.

Chainlink offers developers a decentralized and reliable automated solution. Smart contracts have a major drawback. They are not fully automated, meaning they cannot execute their own functions based on predefined conditions. 

But with Chainlink keepers, smart contracts can automate DevOps tasks and key functions in a reliable, decentralized, and cost-effective manner. The Chainlink keepers constantly check to see if the transaction has met the predefined conditions you set. Once the conditions are met, they issue on-chain transactions, triggering the smart contract.

You can automate yield harvesting, automated trading, and rebasing for smart contract applications using Chainlink. Synthetix is an example of a DeFi protocol that employs Chainlink Keepers to automatically distribute exchange fees and staking rewards to users every week.

Chainlink lets developers build DeFi applications across varying use cases. Smart contract developers have access to Chainlink Data Feeds, which gives them a reliable and secure source of real-world data to power their unique DeFi applications.

Using pre-built and dependable decentralized services, developers can quickly construct, test, and deploy complex DeFi apps that leverage various external resources.

Chainlink VRF provides cryptographically secure randomness for NFTs and blockchain-based gaming applications. Chainlink VRF refers to a Verifiable Random Function.  It is a fair and accurate source of randomness created for smart contracts.

Developers can use this VRF as a secure random number generator (RNG) to build trustworthy applications that use these unpredictable outcomes. Smart contracts can use Chainlink VRF to obtain randomization without sacrificing security or usability.

Chainlink VRF generates a random number and cryptographic proof of how it chose that number with every new request for randomness.

An example of an application that works with VRF is randomly assigning resources and duties, like random assigning of judges to cases. Another example of applications that work with VRF is blockchain games and NFTs.

Developers can build secure cross-chain applications quickly. The Cross-Chain Interoperability Protocol (CCIP) is an open, universal standard that allows developers to create secure services and apps to send messages, transfer tokens, and perform operations across varying blockchain networks.

Smart contracts can communicate across several blockchain networks thanks to the universal messaging interface. Developers will no longer need to write custom code to create chain-specific connectors. CCIP introduces a new DeFi application for multichain ecosystems, which developers can build on.

Chainlink delivers an efficient security system to its users. Chainlink has implemented a security system that ensures the accuracy of data. It has a four-way security system to help consumers keep their cryptocurrency safe. 

Validation system, reputation services, certification services, and contract upgrading service are all part of the four-way security system. First off is the validation system, which helps users identify the ideal oracle to employ because it monitors and verifies on-chain behavior. The second is the security service.  This security feature records and publicizes the ratings of every Oracle user. 

It builds confidence and improves the oracle's credibility as a reliable source of information. There’s also the certification service that helps users pick the right oracle. Lastly, there’s the contract upgrade service. This service acts as a backup and generates a new supporting oracle if there’s a hack on the system.


Compared to centralized oracles, Chainlink provides a more dependable and secure alternative. Smart contracts must interface with external data sources such as APIs, IoT sensors, and data feeds as products move through various stages and migrate from one location to another.

Chainlink oracles connect smart contracts to these external sources in a decentralized, tamper-proof way.

With its tamper-proof middleware network, Chainlink is speeding up the adoption of smart contracts, allowing the technology to replace intermediaries in banking, insurance, healthcare, and supply chain, and finally realize many of blockchain's original promises.