### What - Buy and trade tokens of your twitter "friends" onchain. ### Why - Owning a "key" (previously referred to as a "share") to a twitter friend allows you to talk to them and read their "alpha" in a private chat with other keyholders. - Speculators may wish to buy keys in the hope the value will go up as more people buy keys of twitter friends. ### Risk - On signing up you must give friend tech permissions to tweet on your behalf (you can revoke this in Twitter settings after you've signed up). - There is currently no Privacy Policy (23-Aug-2023). - The value of friends' keys can go up or down depending on demand, so if you buy a key there is a chance it will go down in value. - There have been similarities drawn with friend tech being similar to "paid groups". ### Reward - By paying for keys you get to talk with people you may not otherwise have the opportunity to talk to. - Speculators have bought popular people's keys early, before their value goes up, allowing them to sell keys for a profit as demand (and price) increases. - When people trade your keys you earn a fee from those trades (as does friend tech).

The open protocol and network for secure web3 messaging. Build with XMTP to send messages between blockchain accounts, including DMs, alerts, announcements, and more

The home for web3 publishing Built on web3 for web3, Mirror’s robust publishing platform pushes the boundaries of writing online—whether it’s the next big white paper or a weekly community update.

Your personal metaverse that grows from on-chain activities.

Farcaster is a sufficiently decentralized social network. It is an open protocol that can support many clients, just like email.

Saddle is a decentralized automated market maker on the Ethereum blockchain, optimized for pegged value crypto assets such as stablecoins and wrapped BTC. Saddle enables cheap, efficient, swift, and low-slippage swaps for traders and high-yield pools for LPs. Saddle’s open-sourced StableSwap implementation in Solidity is the pillar for many DeFi projects, across different verticals and blockchains.

#### What Ambient (previously known as CrocSwap) is a DEX that is run in a single smart contract, where individual AMM (automated market maker) pools are included in the same contract instead of being separate smart contracts. Ambient single-contract architecture is designed to reduce gas and taxes while allowing users to seamlessly manage collateral in a single platform. #### Why? Ambient was developed as a new codebase that provides various different features compared to other DEXes. The team believes that the economics of AMMs are "broken", which causes liquidity to be centralized and controlled by very few. In order to change this, Ambient built their protocol from the ground-up allowng for deeper and varied types of liquidity and introduced various features and quality of life improvements vs other DEXes. These features include: * Gas savings vs other competing DEXes * Gasless transactions - users can pay in the swapped token instead of ETH for gas (using the EIP-712 off-chain standard) * Permissioned pools * Different types of liquidity - Concentrated (similar to UniV3), ambient (similar to UniV2), and knockout (similar to limit orders) * Dynamically adjusted pool fees

### What Morpho is a peer-to-peer layer built on top of other lending protocols like Compound or AAVE. It is a lending protocol optimizer - this means that it improves capital efficiency on lending pools by improving the matching of lenders and borrowers. Morpho can be adapated and deployed to any pool based lending protocol, and it acts as a proxy between the user and the underlying lending pool. In the worst case scenario users get the normal APY of the underlying pool, but when matched they received an improved rate thanks to the P2P matching. You can think of Morpho as an engine that matches users interacting in a pool depending on their preferences to get the best rates for both of them. ### Why Peer-to-peer lending is more efficient than peer-to-pools lending (where lenders provide liquidity or assets, to a pool of assets, and borrowers borrow from it). In P2P lending, lenders and borrowers are matched directly and the interest is paid by the borrowers directly to the lender instead of being paid to a pool to be later distributed among all lenders in a pro-rata basis. Morpho combines the benefits of P2P lending (capital efficiency) with the relative high liquidity of peer-to-pool lending. This enhanced matching results in improved rates for lenders and borrowers.

DELV is building the complete suite of decentralized finance. From core infrastructure to structured products, our protocols work together to help create and usher in the new financial system.

### What Euler is a non-custodial permissionless protocol on Ethereum that allows users to lend and borrow almost any crypto asset. Euler helps users to earn interest on their crypto assets or hedge against volatile markets without the need for a trusted third-party. ### Why? Euler introduces a number of new features in DeFi, including permissionless lending markets, protected collateral, reactive interest rates, per-second compounding interests and feeless flash loans. #### Permisionless listing Euler lets its users determine which assets are listed. Any asset that has a WETH pair on Uniswap v3 can be added as a lending market on Euler. #### Protected Collateral On Compound and Aave, collateral deposited to the protocol is always made available for lending. On the other hand, Euler allows collateral to be deposited, but not made available for lending. This collateral is 'protected'. It doesn't earn interest, but is free from the risks of borrowers defaulting, can always be withdrawn instantly, and helps protect against borrowers using tokens to influence governance decisions. #### Reactive interest rates Euler uses control theory to autonomously change the interest rates towards a level that maximises utilisation of assets in the protocol. These reactive interest rates adapt to market conditions for the asset in real-time without the need for ongoing governance intervention. #### Compound Interest Compound interest is accrued on Euler each second. This is different from other lending protocols, where interest is typically accrued every block. Earning interest per-second is generally expected to perform more predictably in the long-run, even if upgrades to Ethereum lead to changes in the average time between blocks. #### Feeless Flash Loans Euler only charges fees according to the time value of money, and from the blockchain's perspective flash loans are held for a duration of 0 seconds. Thus, they are entirely free on Euler (ignoring gas costs).

The Yield Protocol. Yearn is a decentralized suite of products helping individuals, DAOs, and other protocols earn yield on their digital assets.

### What Uniswap is a decentralized exchange protocol (DEX). It allows people to set up or contribute to liquidity pools consisting of various ERC-20 token pairs, or to use the available liquidity to swap their tokens against another using its Automated Market Maker (AMM) mechanism. ### Why AMMS are one of the building blocks in the crypto space as they always provide users with a price between two assets. Uniswap uses a simple X * Y = K, formula to price assets where x is the amount of one token in the liquidity pool, and y is the amount of the other. k is a fixed constant, meaning the pool’s total liquidity is always the same. ### Risk There are various risks involved with using AMMS. These include but are not limited to: Protocol Risk - risk due to mechanics in the design of a protocol. Even when the protocol functions as intended there might be risks e.g. high slippage incurred in trades due to the liquidity curve set-up Smart contract risk - This is risk from an error in the code causing the contract to operate in ways unexpected by the developers. It might leave the code vulnerable to exploits or other attacks Cybersecurity risk - Hackers, Exploiters or other malicious actors trying to attack Uniswap ### Reward Uniswap is arguably one of the largest AMMs in crypto and is usually the protocol where tokens find the most liquidity. Its UI/UX is extremely simple and users can trade most tokens with little problems.

Nexus Mutual protocol and token can be used to buy insurance cover, vote on governance decisions, and participate in Risk and Claims Assessments. It is also used to encourage capital provision and represents ownership to the mutual’s capital. As the mutual’s capital pool increases, the value of NXM will increase as well.

dYdX is a leading decentralized exchange that currently supports perpetual, margin trading, and spot trading, as well as lending, and borrowing. dYdX runs on smart contracts on the Ethereum blockchain, and allows users to trade with no intermediaries.

Curve is a decentralized exchange protocol. It is mainly utilized for swapping various stablecoins, as its Automated Market Maker mechanism is designed to handle such trades very efficiently. The protocol's native token is CRV, which people may stake for periods of time in order to earn the right to partake in the protocol's governance decisions as well as to claim a part of the protocol's cash flows.

CowSwap is the first trading interface built on top of Gnosis Protocol v2. CowSwap is a Meta DEX aggregator that allows you to trade with MEV protection.

### What Astaria is an on-chain NFT lending platform that aims to provide a seamless experience for the native DeFi user. The Astaria protocol allows Strategists to publish loan terms through Vaults, which can accept capital from liquidity providers to be lent to borrowers. Competition between Strategists ensures that borrowers have access to competitive market rates and terms.

Scatter is an artist first platform where you can create NFT collections, mint, buy, and sell NFTs. They are by the people for the people. They are the art underground of NFTs. They embody the revolutionary spirit of Web3, of returning ownership to the people. Scatter goes above and beyond what a typical product launchpad platform may offer. Scatter is a home for artists to express themselves and share their art with the world in a sustainable way.

The NFT marketplace for pro traders

Opensea is an NFT exchange platform that allows users to buy and sell NFTs on the ethereum network.

Buy, sell, and swap NFTs instantly. Deposit NFTs to earn yield (but you may not get the sames ones back).

Decentralised naming for wallets, websites, and more

BlackPool is the first decentralised autonomous organisation (DAO) built solely for NFT gaming and trading. Their strategies will be based on their long-term passion for gaming and art, as they combine professional data analytics and machine learning to provide the best returns for their users.

Top auditors compete to keep high severity bugs out of production. Community-driven contests for smart contract audits.

Fast and secure access to the blockchain. LlamaNodes provides public and premium RPCs with industry leading features, crypto payments, and no contracts.

A peer-to-peer hypermedia protocol designed to preserve and grow humanity's knowledge by making the web upgradeable, resilient, and more open.

Fleek makes it easy to build websites and apps on the new open web: permissionless, trustless, censorship resistant, and free of centralized gatekeepers.

Vyper is a contract-oriented, pythonic programming language that targets the Ethereum Virtual Machine (EVM). ## Principles and Goals Security: It should be possible and natural to build secure smart-contracts in Vyper. Language and compiler simplicity: The language and the compiler implementation should strive to be simple. Auditability: Vyper code should be maximally human-readable. Furthermore, it should be maximally difficult to write misleading code. Simplicity for the reader is more important than simplicity for the writer, and simplicity for readers with low prior experience with Vyper (and low prior experience with programming in general) is particularly important.

Rated offers a solution to the poor contextualization of validator quality problem. This solution is centered around reputation scores for machines and their operators, starting with the Ethereum Beacon Chain [6]. Rated seeks to embed a large swathe of available information from all layers of a given network, and compress it in an easily legible and generalizable reputation score that can act as an input to human workflows but most importantly, machines (e.g. an API that acts as an input to insurance or derivatives Smart Contracts).

### What Ethereum is open access to digital money and data-friendly services for everyone – no matter your background or location. It's a community-built technology behind the cryptocurrency ether (ETH) and thousands of applications and smart contracts (computer programs living on Ethereum) you can use today. The Ethereum network is a network of computers all over the world that follow a set of rules called the Ethereum protocol, and it acts as the foundation for communities, applications, organizations and digital assets that anyone can build and use. Ethereum allows you to coordinate, make agreements or transfer digital assets directly with other people. You don't need to rely on intermediaries. And because no government or company has control over Ethereum it is impossible for anyone to stop you from receiving payments or using services on Ethereum. As mentioned before, Ethereum is not controlled by any particular entity and it exists whenever there are connected computers running software following the Ethereum protocol and adding to the Ethereum blockchain. Each of these computers is known as a node. Nodes can be run by anyone, although to participate in securing the network you have to stake ETH (Ethereum’s native token). Anyone with 32 ETH can do this without needing permission. ### Why Ethereum helps people and communities to coordinate in a resilient, open and trustworthy way on the internet. It also gives people the tools to have self sovereignty over their digital assets, and is particualrly important for people who have had to handle uncertainty around the security or soundness or mobility of their assets due to external forces outside of their control. The core value of Ethereum is that you can interact with the internet without trusting a central authority that could change the rules or restrict your access. The internet was meant to be a free and open space for everyone, and Ethereum builds on this premise, allowing you to control your own assets and identity, instead of them being controlled by a few mega-corporations.

The Ethereum Development Framework For Python Developers, Data Scientists, And Security Professionals

Stake tests to show faith in the underlying smart contracts and potentially earn rewards, or challenge tests you think will fail

The Ultimate Job Aggregator for Crypto Developers

### What Holyheld is a debit card that you connect to your crypto wallet(s). It allows you to spend the funds in your wallet(s) at the shops and online – just as you would use a regular bank debit card. You can pay from your phone, and one day (soon) you may be able to order a shiny metal card. ### Why Being able to spend your crypto straight from your crypto wallet via a debit card saves a bunch of steps that you'd traditionally take using a fiat offramp. ### Risk Your onchain transactions are protected up to $50,000 with their security partner Sherlock. ### Reward Unlimited 1% daily cashback on purchases for metal cardholders. Up to 0.5% for virtual cardholders. And all the time you save by not having to offramp.

Accurate, honest and responsible news and analyses on cryptocurrency and decentralised finance.

Move all your tokens from one address to another quickly. No fees, open source. Made for blockchain nomads.

We analyze 240M+ labeled addresses & their activities, so you can get real-time Crypto, DeFi & NFT insights

If you haven’t gotten started with crypto or Ethereum yet, download Rainbow today and start exploring!

Dune Analytics is a platform that aggregates multiple datasets and creates indicators about protocols in the DeFi space.