Documentation

Build a full web3 app, from its contract to a frontend using indexers. Welcome! In this guide we will help you navigate NEAR tech stack, so you can build Web3 applications from start to finish in no-t

Learn how to create a signature request in Abstract DAO to execute actions on foreign EVM chains. The Abstract DAO contract works as an intermediary between decentralized organizations in NEAR and EVM

Learn how to sign Abstract DAO requests for different chains and relay them to target EVM networks. In the previous section, we saw how to register a signature request on the Abstract DAO contract. No

NEAR has a rich access key system, allowing fine-grained control over accounts In NEAR, accounts can hold multiple keys, each key has its own set of permissions and specific signature schemes to sign

RPC queries, indexers, and hosted data APIs for exchange integrations. Exchanges need on-chain data to detect deposits, track withdrawals, and reconcile balances. RPC provides queries for specific blo

Implicit-account derivation, on-chain creation, transfers, key management, and account costs for exchanges. NEAR supports implicit accounts with 64-character hexadecimal IDs derived locally from an ED

Learn to query information from accounts and contracts using the NEAR RPC API. The RPC API enables you to view details about accounts and contracts as well as perform contract calls. Quick Reference |

Learn all about NEAR account addresses NEAR accounts are identified by a unique address, which can take multiple forms: 1. Implicit address, which are 64 characters long (e.g. fb9243ce...) 2. Named ad

Learn about the structure and components of NEAR Protocol transactions, including signers, receivers, actions, and transaction validation fields. This section explains the anatomy of a transaction in

Learn to use APIs in JavaScript, Rust, and Python to interact with the blockchain. We offer a collection of language-specific libraries that allow developers to interact with the NEAR blockchain from

Understand NEAR's accounts, transactions, data flow, tokens, storage, and network. NEAR is a blockchain for applications built with smart contracts. Users interact with these applications through acco

Create new auctions through a factory using a shared global contract. Since an auction contract hosts a single auction, each time you would like to host a new auction you will need a new contract acco

Learn about scenarios that can lead to token loss in NEAR Protocol and how to prevent them, including key management, account deletion, and smart contract failures. This document outlines the common e

Learn how to authenticate NEAR users in your backend service by creating challenges, requesting wallet signatures, and verifying signatures. Recently NEAR has approved a new standard that, among other

Remember to always deduct a user's balance before sending them tokens in a cross-contract call Between a cross-contract call and its callback, any public method of your contract can execute. This mean

Learn how to query and track account balances in NEAR protocol, including native NEAR tokens, fungible tokens, and balance management for integrations. Balance changes on accounts can be tracked by us

Learn the basic anatomy of all smart contracts. Let's illustrate the basic anatomy of a simple "Hello World" contract. The code on this page comes from our Hello NEAR repository on GitHub. Importing t

Learn how to build n auction smart contract on NEAR. In this section, we will analyze a simple auction contract, which allows users to place bids, track the highest bidder and claim tokens at the end

A collection of best practices for writing smart contracts on NEAR. This page provides a collection of best practices for writing smart contracts on NEAR. These practices are designed to help you writ

Learn how to enable bidding with fungible tokens To further develop this contract we will introduce another primitive: fungible tokens. Instead of placing bids in $NEAR tokens, they will be placed in

Learn how to use NEAR Protocol's BigQuery public dataset for blockchain data analysis, including querying on-chain data, understanding costs, and accessing historical transaction data. This document p

Learn how to retrieve details about blocks and chunks from the NEAR RPC API. The RPC API enables you to query the network and get details about specific blocks or chunks. Quick Reference | Method | De

Finalized block queries, skipped heights, chunk processing, and transaction execution milestones for exchanges. NEAR blocks contain chunks from individual shards. Transactions can produce receipt chai

Learn how to build a meta transaction relayer that allows users to transact on NEAR without paying gas fees while maintaining transaction security through signed delegates. Relayers allow users to tra

Curated resources to help you start building quickly, plus the Awesome NEAR directory. This page brings together practical resources you can use right away when building on NEAR. Getting started [card

A callback always runs, but it can still fail. Design your contract so a failed callback cannot leave it in an unsafe state. When you attach a callback to a cross-contract call, the protocol guarantee

Efficiently store, access, and manage data in smart contracts. When deciding on data structures it is important to understand their tradeoffs. Choosing the wrong structure can create a bottleneck as t

Connect with the NEAR community through various channels and join specialized communities. NEAR is a global community of Web3 enthusiasts and innovators. Connect with developers, builders, and founder

Emit structured events from your contract so indexers and frontends can track on-chain activity. Smart contracts can emit events — structured log messages that follow NEP-297 and are stored on-chain.

Learn to control a NEAR account securely using Multi-Party Computation. Imagine acting on behalf of another Near account - without ever holding its private key. Sounds futuristic? It’s possible today,