Link token contracts: Price Feed Contract Addresses Chainlink Documentation

Link token contracts

Link token contracts

Additionally, all transactions on Stacks settle on Bitcoin via the PoX consensus mechanism. Chainlink is a platform that can support communication between different smart contracts and can supply real-world data to smart contracts in a format they can understand and use. Chainlink has limited functionalities in comparison with Ethereum. The Chainlink ecosystem is powered by LINK which serves as its native digital asset. The rewards work as incentives to encourage accurate reporting from external data sources and the correct functioning of nodes within the Chainlink network. They also make the smart contract network more resilient and reliable overall.

Chainlink was launched in June 2017 by the San Francisco tech company SmartContract. The project is led by the CEO Sergey Nazarov and CTO Steve Ellis. Sergey Nazarov is a serial entrepreneur known as a founder of SmartContract, Secure Asset Exchange, and CryptoMail – a decentralized email service. Before co-founding SmartContract, Steve Ellis worked as a software engineer at Pivotal Labs and Secure Asset Exchange.

Link token contracts

EIP-2309 that standardize the structure of events emitted when creating or transferring non-fungible tokens. This means there can be different approaches to security, speed, scalability, etc., and that diversity enriches the overall experience. It also means that developers and designers can design with reference to a stable point regarding the minimum set of behaviors required from the system. This stimulates innovation on top of the standard, which unlocks more use cases, drives more adoption, and so on. In this blog, we’ll explore why standards are important to increasing crypto token adoption, use, and value. We will also explore how Ethereum standards are developed, and briefly discuss Solana standards too.

The growth of the DeFi market through 2020 and 2021 also made it one of the best performing cryptocurrencies in 2021, with the LINK price registering new all time highs multiple times. Check the latest LINK price, market cap, 24-hour trading volume and perform analysis on the Chainlink price action before entering a new trade. Solana’s native token is the SOL token, comparable to Ethereum’s ETH. This is also an SPL token.


BNB is used to pay for transactions on the BNB Chain mainnet. This process, along with extra secure hardware, eliminates the reliability issues that might occur if using only a single centralized source. Augur – focuses on oracles for the prediction markets that allow betting on future events. Mobius – develops oracles for consumer applications on native dApp store. Request Network – an exchange seeking to become the standard for exchanging fiat and cryptocurrencies.

Link token contracts

Bringing access to the exterior data would allow for a new wave of advanced smart contracts and decentralized applications. This was done by creating a decentralized network which acts as a bridge between the oracles and the smart contracts. This system is built from a nexus of individual nodes, each acting as smart contracts in their own right, gathering information and providing it as needed. Now, instead of having to blindly trust a source, smart contracts run through the Chainlink network have unfettered access to resources like data feeds, traditional bank account payments, and web APIs. Chainlink is a decentralized oracle network that provides real-world data to smart contracts on the blockchain. Smart contracts are pre-specified agreements on the blockchain that evaluate information and automatically execute when certain conditions are met.

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And from the Ethereum price, which is based on the coin’s role in supporting the Ethereum blockchain, which is essential to decentralized applications and NFTs. The XRP price is supported by the usefulness of the underlying XRP Ledger blockchain, which is tuned to support international person-to-person and bank-to-bank fund transfers. This approach incentivizes node operators to keep accumulating LINK. Owning more tokens means access to bigger and more rewarding data contracts.

A valuable feature of smart contracts is that they can store and manage on-chain assets , just like you can with an Ethereum wallet. Because they have an on-chain address like a wallet, they can do everything any other address can. This enables you to program automated actions when receiving and transferring assets.

Smart Contract Use Cases Enabled By Chainlink

Blockchain and functions as the utility token within Chainlink. Validator nodes stake LINK and earn rewards for providing accurate data in LINK. Token standards are a set of agreed-upon rules that guide the design, development, behavior, and operation of cryptocurrency tokens on a given blockchain protocol. For token standards to be useful, they must be widely adopted. Without adoption, their rules cannot be elevated to the status of a “standard”—because standards are the rules that are generally followed by a wide range of people.

The core task of the Chainlink network is to make it possible to run them in a decentralized fashion. Therefore, when smart contracts eventually replace old digital agreements, they will need high-assurance versions of data inputs and outputs. Before the invention of smart contracts, digital agreements were embedded in code that could’ve been altered, terminated, or even deleted by a party that controls it. Smart contracts are changing the game, kicking off a new era of a decentralized, tamper-proof, self-verifying and self-executing agreements that bind all parties to deliver as promised.

Chainlink is currently ranked #9 of all crypto projects by market cap, with a total market cap at time of writing of $10,874,639,775 USD. This market cap may fluctuate wildly as with any other cryptocurrency. It will take a few minutes after the successful execution of your trade for your account to receive the LINK tokens you have bought. Once you receive them, you can choose to keep them in your KuCoin trading account or you can transfer them to an external wallet with additional security for long term holding. Opensea to build marketplaces to list, trade, and sell NFTs, as the marketplace’s code can interact with the NFT’s smart contract to read and write data relating to the NFTs.

The lack of connectivity limits what smart contract developers can create. For example, an app like Uber uses multiple data feeds and key outputs to provide convenient services for everyday use. Without the proper link to such and similar off-chain resources, smart contracts are bound to the on-chain data only.

LINK tokens are used to reward Chainlink network operators for retrieving data from off-chain feeds, formatting data into accessible formats, and performing off-chain computations. Use the Optimism Bridge to transfer testnet ETH and LINK from Ethereum Goerli to Optimistim Goerli. Select Optimism Goerli in your wallet to access the Optimism Goerli bridge. Testnet ETH is available at or the faucets listed at

Though traditional oracles are centralized, Chainlink decentralizes the process of moving data on and off blockchains through “hybrid smart contracts.” Chainlink data feeds are sources of data aggregated from many independent Chainlink node operators. Each data feed has an on-chain address and functions that enable contracts to read from that address. Stacks has been built to enhance DeFi for Bitcoin as it can leverage Bitcoin’s settlement and security assurances. The ability for smart contracts to be executed on Bitcoin is also a functionality that’s been made possible through the Stacks blockchain.

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Chainlink tokens—called LINK—serve as currency to pay Chainlink network operators for retrieving and preparing off-chain data and performing computations. Trade finance smart contracts that need access to data from supply chain systems, customs, and GPS data on shipments. The connectivity issue also goes the other way around, as smart contracts can’t output data into the off-chain systems. Granting the ability to push data to various APIs and legacy systems would facilitate the development of externally-aware tamperproof contracts which could trigger off-chain actions. The Chainlink ecosystem is built around the LINK network and LINK token. Initially, Chainlink solutions are built on Ethereum blockchain, but the company intends to support all major smart contract chains.

If an operator decides to break the rules, they’ll have their LINK tokens removed as a result. One of the most interesting of these unique aspects is Chainlink’s off-chain architecture. The ChainLink network is a part of this architecture, which connects all nodes together. Each of these nodes is then connected to reserves via APIs to gather responses for every contract using the Chainlink service.

How Does Chainlink Differ From Ethereum?

Native tokens are a blockchain’s inherent digital currency. Blockchain network has its own native crypto, used to reward miners and to pay for things, including fees. Investopedia requires writers to use primary sources to support their work. These include white papers, government data, original reporting, and interviews with industry experts.

LINK tokens are the digital asset token used to pay for services on the network. Chainlink validator nodes act as blockchain oracles, performing a greater range of tasks than the nodes of many other decentralized platforms. These oracles interact with smart contracts and transmit data from external sources to them. Validators are incentivized by receiving LINK tokens for performing these tasks. Validator nodes must stake LINK, and the bigger their stake, the more contracts they get. Ethereum is the largest blockchain ecosystem to support decentralized applications using smart contract functionality.

The system also keeps the oracles honest, since their data is measured against other oracles. If an oracle begins to push false data, it’s immediately punished by the network and damages its reputation . The aggregating contract collects all the oracle providers’ responses and computes the final collective answer to the original query. However, it’s important to note that Stacks has its own blockchain and ecosystem. So, if Bitcoin succeeds, it doesn’t necessarily mean Stacks will also experience similar success. Chainlink price is also directly impacted by the demand for it by those using the network.

Please be careful with the feeds used by your smart contracts. The feeds listed in our official documentation have been reviewed; feeds built for custom deployments by other community members might have additional risks. Please do close diligence on your feeds before implementing them in your contracts. Learn more about making responsible data quality decisions. To pull reliable, timely, accurate, and tamper-proof real-world data and process it for access to resources on a blockchain ecosystem. The project contains v0.4 contracts that were used for LINK Ethereum Mainnet deployment in 2017.