Ogmios

A lightweight protocol translation service acting as a translation interface between Cardano nodes and applications written in languages besides Haskell.

Ogmios is not for applications and DApps interacting with the Cardano blockchain at the highest level. It is the best for “low-level work” where one needs to access every bit of the protocol, or for those building wallets, explorers, and smart contract application backends. Anything available on-chain is available through Ogmios.

Ogmios takes up relatively little data, although its resource usage is strongly linked to the application using it. Ogmios is open sourced and there is a TypeScript client library and REPL for Ogmios, and the developer hopes to build it into a more capable SDK for Cardano in the future.

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Developer Tools

Haskell

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Open Source

SDK

API

Author

builtoncardano

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Glossary

Wallets

If you’re searching for where to store Cardano, ada, you’ve come to the right page. The best cardano wallet is a hotly debated topic in the Cardano community, and there are many types of Cardano wallet, all listed here, available to users. The only Cardano desktop wallet available is Daedalus, a full node wallet that downloads the complete Cardano blockchain, ~100GB.

By far the most popular type of wallet is a Cardano light wallet and there are many of these for you to choose from. The second most popular type of wallet is a Cardano web wallet. Most Cardano wallets will show the Cardano price, and a few have even the integrated the ability for you to buy Cardano, ada, directly in the wallet!

Almost all the wallets listed above allow you participate in the Cardano staking protocol, Ouroboros, where you can help to secure the network and earn passive income in the form of staking rewards. Many of the wallets listed above will also allow you to search for which pool to stake your Cardano, ada, to right in the wallet itself.

Finally, there are multiple Cardano cold storage wallets for you to choose from. There are five hardware wallets that offer native support for where to store ada, and two of them, the Ledger and Trezor are supported by multiple light wallets allowing you to use your favorite interface to keep your coins secure in cold storage.

SDK

SDK stands for Software Development Kit.

A SDK is a specific set or package of tool designed to jump start a developer's journey or development in a certain area. SDKs are often used to create applications with advanced functions and can also include:

Informational or educational content
Programing libraries
APIs

SDKs are used by developers of all levels to assist them in their goals and developers on Cardano can find multiple SDKs created and open sourced by members of the community.

On-Chain

These are all the on-chain NFTs, and on-chain NFT collections, that currently exist on Cardano. Many people consider on-chain NFTs to be better, or more special, than off-chain NFTs.

In regards to the on-chain vs off-chain NFT argument, the image represented by an off-chain NFT is found by following a link, typically stored on the IPFS, from the NFTs metadata. This can be changed by the person who uploaded it. The image represented by an on-chain NFT is coded into the metadata and is, therefore, immutably coded into the blockchain's history. This is usually, but not always, in the form a language that your browser understands, allowing your browser to interpret that information and display the NFT.

Explorer

MYTH

Blockchains are a secret way of transacting money and hiding the exchange of funds from others and authorities.

TRUTH

A blockchain is a transparent ledge, meaning that anyone can explore the transactions on it when given the tools. Those tools exist for all blockchains (except the few privacy chains that have been created that do in fact hid the exchange of funds).

Explorers allow anyone to search and explore all the transactions on the blockchain. The blockchain can be searched and explored in numerous ways using: wallet addresses, transaction IDs (TX ID), block numbers, epoch number, slot/epoch number, stake pool ticker, token ticker, staking keys. Users can also search for individual assets and transaction metadata if they have the information. Developers can use APIs to scrape data from the blockchain to inform all sorts of processes, programs, and to create data sets.

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