Solana get balance. Parameters # string required.

Solana get balance This is very inefficient. ts. You can get your own API Key from the SHYFT . Learn more. You can achieve this really easily retrieving the solana object from your window. Hot Network Questions Within my Rust program I would like to get the mint token balance of an account. The minimum slot that the request can be evaluated at. js v1. If you've never used Solana and don't know what a blockchain is, you can also checkout this Welcome to the official Solana subreddit. GetBlock is a blockchain nodes provider. In this sample project tutorial, we will see how we can use SHYFT APIs to list all fungible tokens from our wallet and also get the details of one particular token denis725/solana-get-balance. The Solana blockchain has a few different types of fees and costs that are incurred to use the permissionless network. x-api-key is an authentication parameter, which gives you access to SHYFT APIs. Let’s implement a command for checking the balance at an address. Opt In Solana you can get your own balance with the CLI $ spl-token accounts But how do I get the token balance of a foreign account if I have the account ID or his pubkey? When I use the solana explorer I can see the information I need when I search for the foreign account ID and then click on the Tokens tab Decentralized. Provide details and share your research! But avoid . getTokenAccountsByOwner( this. Aprender; Desenvolvedores; Soluções; Rede; Comunidade; Search. Pubkey of account to query, as base-58 encoded string Decentralized. 0001 SOL. How Get Devnet SOL # In Devnet you can get free SOL to develop with. Using Solana's JavaScript API (Jump to Solana-We Learn how to use getBalance RPC Method on Solana with our easy-to-follow API documentation. An intuitive dashboard utilizing Mobula API to display Solana wallet balances in real-time. In this guide, we will walk through five Verify wallet balance before transactions; Monitor account balance for automated financial services; Check balance changes to detect unusual account activity To read the Solana balance of an address inside a Solana program, use the following code: use super::*; pub fn read_balance(ctx: Context<ReadBalance>) -> Result<()> { let balance = You'll want to use getBalance to get the SOL on the wallet: https://docs. Solana Web3 Example. getTokenAccountBalance RPC Method. Home Guides API Reference Changelog. (At this time, I check solana balance. So, in order to get accurate result through this method, using getBlock is necessary in my opinion if I want to list all the event that impact balance. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their Learn how to retrieve that account balance on Solana. Pubkey of account to query, as base-58 encoded This guide will walk you through building a full-stack Solana dApp using React and Anchor. Transactions may reference addresses stored inside of the address-lookup-table during construction, reducing the size of the transaction. Edytuj stronę. Home > Solana Dokumentation > Solana RPC Methods > HTTP Methods. 4. Puzzle Piece 1: The Balance Myth # 🤫 Tell you a secret, wallets are misleading. First, you need to import Every account on Solana has a balance of SOL stored. Dokumentacja Kursy Poradniki Książka kucharska Terminologia API RPC Stack Exchange. Decentralized. ; Transaction metadata is limited How to Get Account Balance; Writing Programs. It is useful for checking the balance at a If you plan to build a DeFi protocol, wallet, NFT platform, or any type of payment application on Solana, you will need to be able to check the balance of a Solana SPL token account. Wrapped SOL. 🔍 SURVEY: Most investors don’t know that crypto losses can lead to massive tax savings! Learn more. What's the probability the tournament ends Real-time Balance Updates: Seamless access to your Solana wallet balance updates. Search. 0. Seite bearbeiten. Web3 API Reference Guide #. So why do we need even them in dapps and blockchain? A screenshot of a wallet balance. Token. This subreddit is operated by the Solana Foundation. I haven't mentioned precisely how data are stored. I found the spl_token sdk but it only has functions to convert from a balance to a ui balance. Learn how to create accounts at PDAs on Solana. Home > Solana Documentation > Solana RPC Methods > HTTP Methods. How do I check each one for a balance without having to import them to the solana-cli each time? Is there a simple command to check a After that, you'll be able to look at transaction. publicKey Every account on Solana has a balance of SOL stored. So far I only managed to get the Sol balance (0. data to get the full info about the value transferred. These can be segmented into a few specific types: Rent - A withheld balance to keep data stored on-chain; Add Balance #. Returns the token balance of an SPL Token account. uiAmount: <number|null> - the balance, using mint-prescribed decimals DEPRECATED uiAmountString: <string> - the balance as a string, using mint-prescribed decimals For more details on returned data, the Token Balances Learn how to quickly retrieve a Solana token account's balance with a single call. Tatum API How does one parse the data in an SPL token account? It contains a binary blob and I'd like to get the token type and number of tokens. The Solana getBalance method retrieves the current balance of an account for a given public key, providing the number of lamports in the account. More. Ucz się ; Deweloperzy; Rozwiązania; Sieć; Społeczność; Search. My task is to create a giveaway mint with metaplex, but I think that storing list of all users' pubkeys might be expensive, because I have With the above lines of code in place, we can start implementing Moralis’ Solana API endpoints: Balance API endpoints: Get native balance by wallet; Get token balance by A collection of python3 scripts to check your balance/positions on Solana. get-account Learn how to quickly retrieve a Solana token account's balance with a single call. You can find the full documentation for the @solana/web3. How to Get Account Balance. Home Guides API Reference Changelog Get Solana Account balance. In fact, they do not hold anything. We will fetch a pool's parsed info and understand how much tokens are present in the pool. How to get Solana Account Info and-or SOL Balance using Vanilla JS and JSON-RPC via Phantom wallet integration? 0. Learn how to quickly retrieve a Solana token account's balance with a single call. OnMessage occurs when the solana balance changes. Configuring State Commitment # For preflight checks and transaction processing, Solana nodes choose which bank state to query Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company As of v2. Pubkey of Token account to query, as base-58 encoded string. getBalance RPC Method. ) However, if there is a change in the spl-token balance, there is no event. after a transaction to send solana is confirmed, the balance shown on the frontend does not update. Verify wallet balance before transactions; Monitor account balance for automated financial services; encoding format for the returned Account data. As of v2. Lookup the balance for any Solana wallet with our free wallet balance checker. NFT Tax Software. Returns minimum balance required to make account rent exempt. Open a Moralis account and play around with their APIs. Jump to Content. object optional. Support Website Build Now. com/#operation/solanaGetBalance With Solana, it's possible to unlock true micropayments. Returns the token balance of an SPL It's up to you what you need. An acceptable language is solana-cli, web3. The ultimate in the NFT functionality. Address user's by their . js from the solana development examples: import { Connection, LAMPORTS_PER_SOL, PublicKey,clusterApiUrl } from "@solana/web3. It contains a binary blob and I'd like to get the token type and number of tokens. Skip to content. Parameters # string required. The @solana/web3. In order for your Web3 application to interact with the Arbitrum blockchain — either by reading blockchain data or sending transactions to the network — it must connect to a Solana node. the Account's data length. Dokumentaatio Kurssit Oppaat Cookbook Terminologia RPC API Stack Exchange. 0, developers can use the default configurations within the main library (@solana/web3. Meet the Winners of the Solana Radar Hackathon 📡. 9. blockchainapi. Returns the lamport balance of the Overview: Effortlessly check the balance of any Solana wallet or token mint with SolanaAPIs' Token and Solana Balance API. Learn how to use getTokenAccountBalance RPC Method on Solana with our easy-to-follow API documentation. Tax Reports. Modifica Pagina. Solana check all spl token balances of a wallet. Every account on Solana has a balance of SOL stored. Once you have the accountInfo, you can get the bal with something like: However I want to get all the token balance by one call instead of asking a token balance by giving a mint address for every token out there which makes my api respond like 10 minutes, is there any friendly way to do that? I saw Covalent api can do it for checking ethereum wallet balance, wonder how they can do it However I want to get all the token balance by one call instead of asking a token balance by giving a mint address for every token out there which makes my api respond like 10 minutes, is there any friendly way to do that? I saw Covalent api can do it for checking ethereum wallet balance, wonder how they can do it As of v2. py - Get all token mint addresses getsolbalance. Values: jsonjsonParsedbase64base58 jsonParsed encoding attempts to use program-specific state parsers to return more human-readable and explicit data in the Can be any API or method to get the balance of a Sol account (more than one account in one time ) not use loop like getBalance() not that function, Skip to main content. The Solana getMinimumBalanceForRentExemption method returns the minimum balance required to make an account rent exempt, which is useful for determining the minimum Solana can power thousands of transactions per second. amount is the total amount of lamports, so 90_000_000_000 in your example; uiAmountString is the formatted amount of SOL, so 90. Documentação Cursos Guias Cookbook Terminologia API RPC Stack Exchange. We use the Blockchain API to get the balance of a wallet on Solana. py. Which will be 0 for now, but we will airdrop SOL into it in Retrieves the balance of an account on the Solana blockchain. For Tax Get a Public key; Get Balance of all tokens; Perform Buy/Sell; I'm able to connect to a phantom wallet with the below code. Values: fullaccountssignaturesnone If accounts are requested, transaction details only include signatures and an annotated list of accounts in each transaction. 006124) which is not what I wanted. Find Get Latest Balance Updates . Check your balance # Re-run the script. Imagine a world where you can use your Solana wallet as seamlessly as you can use Apple Pay. Stack Overflow. Learn how to retrieve Solana token account details, including owner, mint, and balance Learn how to retrieve that account balance on Solana. getting started. txt: WALLET_ID_1 WALLET_ID_2 WALLET_ID_3 balances. How to Transfer SOL in a Solana Program; How to get clock in a program; How to change account size; How to do Cross Program Invocation; How to create a Program Derived Address; How to read accounts in a program; Reading Multiple Instructions; How to verify accounts in a Solana program; Tokens. - anouci/solana-wallet-balance-tracker. Pick any amount of SOL you like. Code sample # How can I get a list of Tokens in a Solana Wallet? 0. In the Solana world, everything is stored in accounts. Documentation Courses Guides Cookbook Terminology RPC API I tried to use getBalance() method, but I got an error: Error: failed to get balance of account GAcDDi9xp: TypeError: fetch failed I found that I call any method under Connection, I got the same Learn how to quickly retrieve a Solana token account's balance with a single call. A walkthrough video is available here. If you are just starting your Solana journey, you will probably need to check an account's balance. Get Balance and all custom token list of Solana tokens in Wallet. A Solana Framework for JavaScript clients. It is useful for tracking the token balance of an account. There are two ways to do it. Looking for a way to fetch owner tokens and balance. Opt-out Details Returns Every account on Solana has a balance of SOL stored. txt: list. English ; 中文 ; Getting Started. Welcome to the official Solana subreddit. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. How to get a token mint address from a transaction signature in Solana web3. Navigation Menu Toggle navigation. Configuration object containing the following fields: The Solana getAccountInfo method retrieves detailed information about a specific account, including its balance, owner, and executable state, and can be used to retrieve the current balance of a Solana account. If my crypto were stored inside a wallet, how come you can just look up what's inside my wallet Solana can power thousands of transactions per second. Find out more on how we use cookies. I'm looking for any solution. web3. getBalance(publicKey); The above method is what I found from the documentation, Every account on Solana has a balance of SOL stored. how to detect spl-token balance change? Best regards, To get started, we will need a few things. Includes code examples in both TypeScript and Rust. There are two ways to add balance for Wrapped SOL. Solana Web3. js, or solana. py - Get your SOL and token balances (Requires solana pip3 library) Program Derived Addresses, also known as PDAs, enable developers to extend their program's functionality with program-owned accounts. Use cases. Home > Solana Returns the lamport balance of the account of provided Pubkey. Up to this point, we have talked about utilizing the Moralis Solana API and NodeJs to obtain the native balance of a solana wallet. getBalance - solana [Value: 12CU] Retrieves the balance of an account on the Solana blockchain. Fast. 8 min read. Visit Stack uiAmount: <number|null> - the balance, using mint-prescribed decimals DEPRECATED; uiAmountString: <string> - the balance as a string, using mint-prescribed decimals; For more details on returned data, the Token Balances Structure response from getBlock follows a similar structure. instructions[0]. Using Solana's Command Line Interface (Solana CLI) (Jump to Solana CLI) 2. Result # Returns the lamport balance of the account of provided Pubkey. JUMP TO. Mobile E-Commerce. Summary. Create Keypair (Account) Request Airdrop ; Get Balance (SOL) Transfer (SOL) Create Mint (Token) Get Mint (Token) Create Account (Token) Get Account (Token) Every account on Solana has a balance of SOL stored. Solana API is available on Web3 API platform (opens in a new tab). This tool is convenient for querying different programs on Solana, including the Solana SPL Token Account library. The query will subscribe you to real-time updates for balance changes on the Solana blockchain, providing a continuous stream of data as new transactions are processed and recorded. Need an extra life? That'll be 0. Values: jsonParsedbase58base64base64+zstd base58 is slow and limited to less than 129 bytes of Account data. Customizable: Use or build plugins for any onchain functionality (sending tokens, checking wallet balance, etc) and protocol (Jupiter, Meteora, Uniswap, etc). Create Token Account ; Add Balanace ; Close Account ; Set Authority ; Get All Token Account By Owner ; Metaplex (NFT) Get Token Metadata ; Get NFT Connect and Get Balance of Solana Wallet Using Plan JavaScript and jQuery - Amenulhaq/solana-wallet-js. Edit Page. GitHub open in new window. Web-scale blockchain with speeds of 50k TPS. Overview . minContextSlot number optional. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Connect to Bitcoin, Ethereum, Binance Smart Chain and other nodes with JSON-RPC, REST and WebSockets APIs How do I get all token balances for a specific mint? I want a list of all owners and their balance. js"; const connection = new Connection(" Skip to main content. Pubkey of account to query, as base-58 encoded string. Think of Devnet SOL like board game money - it looks like it has value, but it doesn't have value. Gets the native balance owned by a given network and address [API Documentation]. How do I get all token balances for a specific mint? I want a list of all owners and their balance. sh: As of v2. How to Transfer SOL in a Solana Program; How to get clock in a program; How to change account size; How to do Cross Program Invocation; How to create a Program Derived Address; How to Every account on Solana has a balance of SOL stored. With this, we will be able to check the balance of our wallet. . js) or import any of its subpackages where better composition or more granular control over the imports is desired. How CoinLedger Works . Use getAssociatedTokenAccount that is provided with the @solana/spl-token library. If Linux stores data into files, Solana stores data into accounts like a file system. Solana can power thousands of transactions per second. 0. NFT. Skeptical? Take a look at this account's balance. sol domain name. I have 100s of solana private keys for a service I'm building. Opi; Kehittäjät; Ratkaisut; Verkko; Yhteisö ; Search. Documentazione Corsi Guide Cookbook Terminologia API RPC Stack Exchange. js; solana-wallet-adapter; react; nextjs; You have 2 options to get the new balance: either you query again the blockchain with getParsedAccountInfo(wallet_address) Solana can power thousands of transactions per second. This method provides the token balance of a specific account, which is the amount of tokens the account holds. com/developing/clients/jsonrpc-api#getbalance. For example, I want a user to access a certain part of the website only if they have x token on their phantom wallet (or other Solana wallet). This method does not prints any balance of the SPL or NFT tokens on the account. Historical Data: Track the historical balance of your Solana wallet with ease. – David Choi. Configuration object containing the following fields: commitment string optional. ; base64 will return base64 encoded data for uiAmount: <number|null> - the balance, using mint-prescribed decimals DEPRECATED; uiAmountString: <string> - the balance as a string, using mint-prescribed decimals; For more details on returned data, the Token Balances Structure response from getBlock follows a similar structure. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with Learn how to retrieve that account balance on Solana. General # Connection #. Product. solana. In this guide, we will walk through four easy ways to check the balance of a Solana Wallet: 1. Docs: https://docs. Muokkaa sivua. Gated access based on their wallet content. Skip to main content. Just on RPC-requests or After that, you'll be able to look at transaction. get-account-balance. It provides a zero-dependency library that defines a set of core interfaces that libraries can rely on without being tied to a specific implementation. I would also like to do this at a historical point in time using a snapshot. English ; 中文 ; GitHub open in new window. Write better code with AI Security. I'd imagine you could do a shell script like this to iterate over different wallets in a file, list. You can use connection. Home > Solana Cookbook Learn how to quickly retrieve a Solana token account's balance with a single call. Intro ; Tour. Therefore, I am periodically checking the spl-token. I got this Account from a Jupiter Quote where I found the AMM? address. const balance = connection. I'm not sure if the next step in the process is to get a public key so that I can find the balance of all tokens as part of the account. You can fetch token accounts by owner. Saiba mais sobre como usamos solana-balance Get your balance USAGE: solana balance [FLAGS] [OPTIONS] [ACCOUNT_ADDRESS] FLAGS:-h, --help Prints help information--lamports Display balance in lamports instead of SOL--no-address-labels Do not use address labels in the output --skip-seed-phrase-validation Skip validation of seed phrases. We will also fetch pricing info for the tokens involved using Jup API and find the total liquidity value of the pool. Encoding for the returned Transaction. Returns the lamport balance of the account of provided Pubkey. Is there a way to wait some time within a Solana program or would this not be allowed since it can cause a delay or program completion. By SOL Transfer # Get Solana balance command. I don't want to rely on Raydium API or any other. Umi is a modular framework for building and using JavaScript clients for Solana programs. connection. Get All Token Account Solana. function get ataBalance(walletPubkey:PublicKey) { const ata = await getAssociatedTokenAccount(USDC_MINT,walletPubkey); let accountData = await Returns the token balance of an SPL Token account. Documentation Courses Guides Cookbook Terminology RPC API Stack Exchange. Hello readers! To kick off Solana Summer and the current whitelist meta, we thought it would be helpful to dig into all of the token accounts you and your users have using the getParsedProgramAccounts method. It's time to enter the arena 📡 - Sign up for the Solana Radar hackathon now! This website uses cookies to offer you a better browsing experience. Home > Solana Cookbook > Accounts. Separately, you could also use the preBalances and postBalances to see how much was moved during the whole transaction. Nice! We can now talk to Solana and ask for the balance. Solana is a decentralized blockchain built to enable scalable, user-friendly apps for the world. js: Getting `null` for Mint account, althought it should return an `AccountInfo` object. Solana: Parse Token Data. js library here. 📩 Sending Transactions on Solana; Resources. network: Solana blockchain environment Stake accounts on Solana can be used to assign tokens to validators on the network to potentially earn rewards for the owner of the stake account. js library is a package that has coverage over the Solana JSON RPC API. Editar Página. Let's use SOL as an example, which as 9 decimal places, such that 1 SOL = 1_000_000_000 lamports. Create/read/update Energy efficient. getallsoltokens. Secure and Reliable: Powered by Mobula API for accurate and up-to This transaction uses address-lookup-tables, which are special accounts that store addresses. But for some accounts, I also find there is tiny sol missing, which I believe that it is rent happend in block rewards. To do it from a snapshot, you can hack solana-ledger-tool to do something similar. Home > Solana Documentation > Solana RPC <string> - the raw balance without decimals, a string representation of u64; decimals: <u8> - number of Returns the token balance of an SPL Token account. solanaUtilService. Stop showing random hex values in their profile. Search their wallets for specific tokens or NFTs in a dead simple way. get-account Solana getTokenAccountBalance method The Solana getTokenAccountBalance method returns the token balance of an account. Bu web sitesi size daha iyi bir gezinme You can fetch the balance for your USDC associated token account (ATA). Sign in Product GitHub Copilot. By sending a simple GET request, you can retrieve accurate balance information in seconds. 1. have issue with token in react. Source Is it possible to get SOL balance and/or SPL token balances for a given account in an Anchor program? Skip to main content. Parameters # usize optional. So, I want to get the balance of the Wsol of an liquidity Account on Raydium. To get all of the non-SOL The first thing you need to do is to get the user’s public key. This will also require us to query OpenBook through RPC. import { address, createSolanaRpc } This is balance. message. I have a branch which searches through all programs at a snapshot, I'm trying to see how you can get the "ownerof" token like on Ethereum but on the Solana blockchain instead. how can i change the code so that the balance is updated? web3. Designed for developers and users, this API ensures fast, reliable, and easy access to balance inquiries. Learn how to retrieve that account balance on Solana. If I understood you right, your code works, but you need to get the TokenAccount address from the wallet right? What you can do is: call getTokenAccountsByOwner(pubKey) and then check all the token accounts TokenAccountInfo mint if its the mint of your specific token. They do not store your crypto. Commented Aug Solana - How to get the balance from my Phantom wallet? 1. Impara; Sviluppatori; Soluzioni; Rete; Comunità ; Search. Home > Dokumentacja Solany > Solana RPC Methods > HTTP Methods. Energy efficient. Support Status Sign Up Login. Asking for help, clarification, or responding to other answers. 🏗️ What is NFT compression on Solana?; 💊 Digital Asset Standard (DAS) API Fast. getMultipleAccountsInfo([pubkey1, pubkey2, pubkey3, etc]) to load several accounts in a single RPC call, but you'll get AccountInfo instead of balance, so you need to parse the balance manually from the AccountInfo. Multi-Chain: Primary support for Solana with additional support for EVM chains. By summing up all these calculations, I can get the historical balance. js v2 web3. Scalable. Interact with Solana nodes directly with the JSON RPC API via the HTTP and Websocket methods. Below you see the Account on solscan. Hot Network Questions Is there a way to confirm your Alipay works before arriving in China? In a single elimination tournament, each match can end with 1 loser or two losers. Lernen; Entwickler; Lösungen; Netzwerk; Community; Search. 000000000 in your example; If you need to do calculations, you should hold on to amount Get Solana account balance in SOL. Este site usa cookies para oferecer uma melhor experiência de navegação. API Reference. level of transaction detail to return. Authentication: Getting your Shyft API key. wallet. Code sample # Learn how to create accounts on the Solana blockchain. Languages Languages. This is a place to post any information, news, or questions about the Solana blockchain. Hey, thanks for that, but its a solution for a client side, but I need to do this in smartcontract. Get the details you need to integrate getTokenAccountBalance into your web3 projects on Solana. About; Products Get Balance and all custom token list of Solana tokens in Wallet. SMS can enable a new wave of mobile e-commerce shoppers to pay directly from their favorite Solana wallet. Stack Exchange Network . i have tried the following code: const tokenAccounts = await this. See Tree-Shakability for more information. First, you have to get the USDC ATA address. Solana defi data. Get the details you need to integrate getBalance into your web3 projects on Solana. Get Balance (SOL) Transfer (SOL) Create Mint (Token) Get Mint (Token) Create Account (Token) Get Account (Token) Mint To (Token) Get Balance (Token) Transfer (Token) Advanced. Thanks for contributing an answer to Solana Stack Exchange! Please be sure to answer the question. DeFI APIs Callbacks. How to Get Account Balance; Writing Programs. While files have a filename, accounts have a public address: So your SOL balance is actually stored in an account whose public address is your public key! Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site Returns the lamport balance of the account of provided Pubkey. Just add a wallet address! 💸 Lost money in crypto last year? You can save thousands on your taxes. 📘 The inte Thanks for contributing an answer to Solana Stack Exchange! Please be sure to answer the question. Opt Learn how to quickly retrieve a Solana token account's balance with a single call. Learn; Developers; Solutions; Network; Community; Search. Get the balance of a particular token in a wallet (Supports Token 2022 token info 🆕) Query Params. Solana First: Deep integration with Solana's ecosystem including SPL tokens, NFTs, and DeFi protocols. Get some Devnet SOL and use the public key of your keypair as the address. In this link, you can see that it includes balance changes for the token being bought/sold as well as the sol amount traded for the token. Create Keypair (Account) Request Airdrop ; Get Balance (SOL) Transfer (SOL) Create Mint (Token) Get Mint (Token) Create Account (Token) Get Account (Token) Learn how to quickly retrieve a Solana token account's balance with a single call. ☎️ What are Callbacks? 📔 Get a user's entire portfolio in one single call. You should see your balance updated: Learn how to quickly retrieve a Solana token account's balance with a single call. Write better code Solana Web3 Example. Opt Fast. This website uses cookies to offer you a better browsing experience. Dokumentation Kurse Leitfäden Cookbook Glossar RPC-API Stack Exchange. dyu cmes svag qkcb penxe tanbmr gkcq fdkvt hhfqp gxphk