Fei USD (FEI) API and Price Oracle


For informational use only; request a custom oracle/API for production below.
General information
Contract address
Smart contract address of the asset
Blockchain network where the asset is deployed
Pricing methodology used to determine the price of the token in USD. By default, all price feeds on the DIA App are calculated with a MAIR methodology. This parameter is customisable.Learn more about methodologies.
Update frequency
120 seconds is the default update frequency. This parameter is customisable.Learn more about oracle updates.
Next update
24h Volume
The total volume captured by DIA across all the integrated sources.
Volume 24h
Trades 24h
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Token information

What is Fei USD (FEI)?

Fei USD (FEI) is a stablecoin protocol created to maintain a stable value of 1 USD. It operates on the Ethereum blockchain and was founded in 2021 by a team of anonymous developers. The protocol aims to achieve price stability through an algorithmic mechanism instead of relying on collateral. FEI token holders can stake their tokens and earn fees from stability fees charged on trades.

How does Fei USD work?

Fei USD is a stablecoin built on the Ethereum blockchain. It utilizes a new algorithmic design called "direct incentives" to maintain its price stability. Unlike other stablecoins that are usually backed by reserves, Fei relies on its own mechanisms to maintain its peg to the US dollar.

The underlying technology behind Fei USD is a combination of bonding curves and algorithmic incentives. When users want to acquire Fei, they can do so by providing a different cryptocurrency, such as Ether (ETH), in a process called "minting." The amount of Fei received is determined by an algorithmic bonding curve, which adjusts the price based on the supply and demand dynamics.

To maintain stability, Fei employs a mechanism called "redemption." When the price of Fei deviates from its pegged value, users are incentivized to help restore the peg by burning their Fei tokens in exchange for the underlying collateral. This mechanism creates a balance between supply and demand, helping to keep the price of Fei stable.

Fei USD functions as a decentralized stablecoin that operates entirely on the Ethereum blockchain. It provides a reliable and transparent means of transferring value without the volatility typically associated with other cryptocurrencies. As an Ethereum-based token, Fei USD benefits from the security and widespread adoption of the Ethereum network.

By combining algorithmic design, bonding curves, and strong blockchain infrastructure, Fei USD offers users a stable and reliable medium of exchange within the rapidly evolving blockchain ecosystem.

What are the benefits of Fei USD?

Fei USD offers several benefits compared to its direct competitors in the cryptocurrency space. One of the key advantages of Fei USD is its stability mechanism, known as the Protocol Controlled Value (PCV). This mechanism helps to maintain the price stability of Fei USD by utilizing dynamic incentives. Unlike other stablecoins, Fei USD does not rely on traditional fiat reserves, but rather on its PCV. This sets it apart from competitors such as Tether or USD Coin, which are backed by fiat currencies.

Another benefit of Fei USD is its decentralized governance model. The protocol is governed by FIPs (Fei Improvement Proposals) which are voted on by the community. This ensures that decisions regarding the protocol are made collectively and transparently, giving users a say in the future development and direction of Fei USD.

Furthermore, Fei USD provides interoperability with other decentralized finance (DeFi) platforms. This means that users can easily integrate Fei USD into various DeFi applications and take advantage of the growing ecosystem of decentralized financial services.

In conclusion, Fei USD stands out among its direct competitors due to its stability mechanism, decentralized governance, and interoperability with other DeFi platforms. These features position Fei USD as a viable and innovative stablecoin option in the blockchain space.

What is Fei USD used for?

Fei USD is a stablecoin that is used for various purposes in the blockchain ecosystem. As a stablecoin, its main function is to provide stability and act as a reliable medium of exchange, store of value, and unit of account within the digital economy.

One common use case for Fei USD is as a means of payment. It can be used for online transactions, remittances, and peer-to-peer transfers, allowing users to send and receive value quickly and securely across borders without the need for traditional banking intermediaries. Its stable value makes it an attractive option for merchants and consumers alike, as it minimizes the volatility commonly associated with other cryptocurrencies.

In addition to payment transactions, Fei USD can also be used in decentralized finance (DeFi) protocols. DeFi platforms leverage smart contracts to provide various financial services without the need for traditional intermediaries. Stablecoins like Fei USD are often used as collateral, enabling users to access loans and borrow against their holdings without the risk of price fluctuations.

An interesting specific use case for Fei USD is in yield farming strategies. Yield farming involves depositing assets into liquidity pools or farming protocols to earn additional rewards. Stablecoins like Fei USD can be paired with other tokens in these protocols, providing liquidity and earning yield through fees or token rewards. This can be an attractive option for investors looking for stable returns in the volatile cryptocurrency market.

Overall, Fei USD serves as a stable and reliable currency for various transactions and financial activities within the blockchain ecosystem, offering stability and utility in a decentralized manner.

What is DIA's Fei USD API?

DIA's Fei USD API is one of the real-time price feed API endpoints offered by DIA. DIA constructs its price feeds by sourcing raw data from over 85 on-chain and off-chain cryptocurrency and NFT exchanges, gathering information about billions of individual trades. This extensive data collection allows DIA to deliver what other web3 data providers may not be able to offer.

DIA provides developers with both free API endpoints for testing purposes and fully customizable, custom feeds. While the free price feed API endpoints are publicly available on the DIA App for informational purposes and offer a simple way for developers to test, the custom feeds offer even more flexibility. When a user requires a custom configuration for a feed, DIA builds a dedicated API price feed according to their specific needs.

These custom API data feeds can be tailored in terms of sources, methodologies, update mechanisms, and more. To request a custom feed, users can get in touch with DIA via Discord or Telegram.

The use cases for DIA's API are diverse and can benefit various applications in the blockchain ecosystem. In the DeFi space, the price information from DIA's API can be utilized for derivatives, options, futures, lending and borrowing markets, collateralized stablecoins, synthetic asset issuance, money markets, and more. Additionally, in the NFTfi sector, DIA's API can be utilized for peer-to-pool NFT lending and borrowing, on-chain NFT derivatives, NFT renting, NFT fractionalization, and other applications.

In summary, DIA's Fei USD API, along with their other API endpoints, provides real-time price feeds of crypto assets. While DIA offers free API endpoints for testing, their custom feeds offer greater flexibility and customization options to meet specific user requirements. Developers can utilize DIA's API in various ways across the blockchain ecosystem, benefiting DeFi and NFTfi applications.

What is DIA's Fei USD price oracle?

DIA's Fei USD price oracle is a smart contract that provides real-time price feeds for cryptocurrencies, including Fei USD. DIA stands out from other web3 data providers because it is integrated with 35+ layer 1 and layer 2 networks, allowing it to deploy price oracles across multiple blockchains.

DIA's price feeds are constructed using raw data sourced from over 85 on-chain and off-chain cryptocurrency and NFT exchanges, incorporating information from billions of individual trades. This extensive data collection ensures accurate and reliable price information.

While DIA offers (free) demo oracles for developers to test, these are only for testing purposes and cannot be integrated into production applications. However, DIA also accommodates users who require custom configurations for their price feeds. With a custom feed, users can tailor the sources, methodologies, update mechanisms, and more according to their specific needs. To request a custom feed, users can reach out to DIA via Discord or Telegram.

DIA's custom oracles have a range of use cases across the blockchain ecosystem. For DeFi applications, they can be utilized in derivatives, options and futures, lending and borrowing markets, collateralized stablecoins, synthetic asset issuance, money markets, and more. In NFTfi applications, DIA's oracles can facilitate peer-to-pool NFT lending and borrowing, on-chain NFT derivatives, NFT renting, NFT fractionalization, and other use cases.

Briefly explaining, a blockchain oracle is an external information provider that supplies verified data from outside the blockchain to smart contracts. Oracles, like DIA's, play a crucial role in connecting blockchain applications with real-world data, enabling the automation of various financial processes and applications.

Why use DIA's FEI API & price oracle?

DIA's FEI API and FEI Price Oracle offer several benefits for users in the blockchain ecosystem. One key advantage is the high level of customization available. Users can tailor each oracle and API endpoint to their specific needs, including configuring data sources, filters, pricing methodologies, and update mechanisms. This allows for a robust and resilient data feed that can adapt to unique market conditions. The customization ensures that the data and oracle remain reliable and accurate, providing global and specific market prices.

Transparency is another major benefit of using DIA's API and Oracle feeds. DIA provides full and granular transparency throughout the entire data journey, allowing users to verify the authenticity and reliability of the information. Additionally, DIA offers tracking and monitoring tools to closely follow the oracle and API feeds. This level of transparency instills trust and confidence in the data being provided.

Overall, DIA's FEI API and FEI Price Oracle offer accurate and reliable price data for cryptocurrencies and NFTs, with the added benefits of customization and transparency. These features make DIA's technology a valuable resource for users in the blockchain ecosystem seeking trustworthy and customizable price feeds.

Why use DIA data feeds and oracles?

DIA provides full insight on the oracle’s data journey as well monitoring tools to track feeds in real-time.
Oracles can be tailored to any use case in terms of data sources, methodologies and update mechanisms and much more.
Broadest coverage
DIA provides price oracles for 3,000+ cryptocurrencies: from blue-chip tokens to long-tail assets.