ऐप एकीकरण

Ethereum के लिए लाइटवेट, मॉड्यूलर, रिएक्टिव Java और Android लाइब्रेरी। JSON-RPC क्लाइंट API, वॉलेट सपोर्ट, और डिप्लॉयमेंट और इंटरैक्शन के लिए ऑटो-जनरेटेड Solidity कॉन्ट्रैक्ट रैपर्स। इसमें CLI, Maven/Gradle प्लगइन्स और ENS सपोर्ट शामिल है।

web3.py एक ओपन सोर्स लाइब्रेरी है जो Python डेवलपर्स को Ethereum से जोड़ती है। यही टीम py-evm, eth-account और eth-utils सहित एक दर्जन से अधिक अतिरिक्त बिल्डिंग ब्लॉक्स का रखरखाव करती है।

go-ethereum ships Go packages for Ethereum development, including the ethclient RPC client, account and key handling, and abigen for type-safe contract bindings. Go builders import them to talk to nodes and call contracts from generated code.

Ethers.js स्क्रिप्ट, वॉलेट और सेवाओं के लिए एक कॉम्पैक्ट TypeScript लाइब्रेरी है, जिन्हें Node या ब्राउज़र में पूर्वानुमानित जेसन-आरपीसी, ABI एन्कोडिंग और हस्ताक्षर करने वाले हेल्पर्स की आवश्यकता होती है।

Viem इथेरियम के लिए सबसे अधिक उपयोग किया जाने वाला आधुनिक TypeScript इंटरफ़ेस है। Viem इथेरियम पर वेब एप्लिकेशन, TypeScript लाइब्रेरी, वॉलेट, बैकएंड, इंडेक्सर, स्क्रिप्ट और बहुत कुछ बनाने के लिए आधार के रूप में मजबूत, उच्च-प्रदर्शन वाले और टाइप-सेफ मॉड्यूल प्रदान करता है।

Nethereum Ethereum के लिए .Net एकीकरण लाइब्रेरी है, जो Geth (या आपके पसंदीदा क्लाइंट) जैसे सार्वजनिक Ethereum नोड्स, Optimism, Arbitrum (या आपके पसंदीदा L2) जैसे L2 चेन, किसी भी संगत EVM चेन (Gnosis, आदि) और Quorum जैसे अनुमति प्राप्त चेन के साथ पहुंच और स्मार्ट कॉन्ट्रैक्ट इंटरैक्शन को सरल बनाता है।

rust-libp2p, libp2p के मॉड्यूलर पीयर-टू-पीयर स्टैक का संदर्भ Rust कार्यान्वयन है, जिसका उपयोग OP Stack पर Magi, लाइटहाउस, Forest और कई अन्य प्रोजेक्ट्स द्वारा किया जाता है, जिन्हें विकेंद्रीकृत नेटवर्किंग के लिए संयोज्य ट्रांसपोर्ट्स, सुरक्षा, pubsub और खोज प्रिमिटिव्स की आवश्यकता होती है।

Revm Ethereum इकोसिस्टम में एक महत्वपूर्ण घटक है जिसका उपयोग बिल्डरों, टूलिंग, क्लाइंट और चेन द्वारा किया जाता है।

The ethereumjs monorepo holds core JavaScript primitives for Ethereum, including transaction signing, an EVM implementation, RLP encoding, tries, and shared utilities. JavaScript builders import individual packages when they need protocol-level pieces rather than a full client library.

Safe Protocol Kit is the TypeScript SDK of safe-core-sdk for building, signing, and executing Safe multisignature transactions. Builders use it to drive Safe accounts from application or script code.

web3.swift from Argent is a Swift library covering Ethereum RPC calls, ABI encoding, and transaction signing. iOS and macOS builders use it to talk to Ethereum from native applications.

Merkle Trees बनाने और प्रमाणों को सत्यापित करने के लिए एक JavaScript लाइब्रेरी।

Delphereum is a web3 implementation for Delphi that lets Object Pascal desktop and mobile applications sign transactions and read contract state. It is the maintained route to Ethereum for builders working in that language.

Ethereumex is an Elixir JSON-RPC client for Ethereum and the transport layer that higher-level libraries such as Elixir Ethers build on. Elixir builders configure it by name even when they work through a higher-level library.

headlong is a Java library for encoding and decoding contract ABI calldata and RLP, tuned for throughput in JVM services. Java builders add it when a backend has to process a high volume of Ethereum calls.

hs-web3 is a Haskell library for talking to Ethereum nodes, with contract ABI code generation through Template Haskell. It is the route to Ethereum for builders working in Haskell.

ruint is a const-generic unsigned integer type for Rust that represents Ethereum's 256-bit words, and it sits under Alloy and Reth. Rust builders add it directly when they need fixed-width big integers.

rust-web3 is a Rust implementation of the web3 JSON-RPC client with pluggable transports. It predates Alloy and carries no deprecation notice.

web3dart is an Ethereum client library for Dart and Flutter covering JSON-RPC calls, contract bindings, and local transaction signing. Flutter builders use it as the general client for mobile applications.

safe-eth-py is the Python SDK from the Safe team for building, signing, and relaying Safe multisig transactions. Python builders use it to drive Safe accounts from backend code.

abitype provides strict TypeScript types and static inference for Ethereum ABIs, and it is the type layer under viem and wagmi. TypeScript builders import it when contract calls should be checked against the ABI at compile time.

essential-eth is a lightweight JavaScript client library that bundles to roughly a tenth of the size of ethers.js or web3.js. Builders install it when bundle size on the frontend is the constraint.

ox is a low-level TypeScript library of Ethereum primitives covering ABI, RLP, hex, signing, and transactions, and it sits under viem and other wevm tools. Builders import it directly when they want the primitives without the client layer.

multicall.py is a Python client that batches many contract calls into a single Multicall aggregate call. Python builders install it to turn hundreds of reads into one RPC request.

ethkit is a Go toolkit for building Ethereum applications from the team behind the Sequence JavaScript SDK. Go builders import it for wallet handling, ABI work, and RPC calls.

w3 is a modular Go JSON-RPC client for Ethereum with first-class ABI support and request batching. Go builders import it when contract calls should be typed and many requests sent in one batch.

Elixir Ethers is a library for calling and decoding Ethereum smart contracts from Elixir. Builders use it when the backend is written in Elixir, where options are few.

Zabi इथेरियम और अन्य EVM चेन के साथ इंटरैक्ट करने के लिए एक Zig लाइब्रेरी है, जो जेसन-आरपीसी क्लाइंट, ABI यूटिलिटीज़, हस्ताक्षरकर्ता और वॉलेट प्रिमिटिव्स प्रदान करती है।

ethers-kt is an async Kotlin library for interacting with EVM chains, targeting the JVM and Android. Kotlin builders use it to read contracts and send transactions from server or mobile code.

Vectorized का Multicaller गैस-अनुकूलित मल्टीकॉल-शैली अनुबंधों का एक संग्रह है जो प्रत्येक कॉली के लिए मूल msg.sender संदर्भ को संरक्षित करते हुए मनमाने बाहरी कॉल को बैच करते हैं, जिससे EVM चेन पर जटिल राउटर या एग्रीगेटर फ्लो सस्ते और सुरक्षित हो जाते हैं।

libethc C/C++ के लिए एक ओपन-सोर्स ethereum लाइब्रेरी है

Voltaire, TypeScript, Zig, C और Swift के लिए एक आधुनिक सामान्य-उद्देश्य वाली Ethereum लाइब्रेरी है। टाइप-सेफ प्रिमिटिव्स, WASM-त्वरित प्रदर्शन, और AI-सहायता प्राप्त विकास के लिए डिज़ाइन किया गया है।

एक हल्का ब्लूम फ़िल्टर क्लाइंट जो आपको सेट सदस्यता की त्वरित जांच के लिए ethereum ब्लूम का परीक्षण करने की अनुमति देता है।

primitive-types provides the shared Rust U256, H160, and H256 types used across Ethereum and Substrate node and tooling codebases. Rust builders add it when their code has to carry Ethereum-sized integers and hashes.

ENSjs is the TypeScript library from ENS for resolving names and reading or writing ENS records, built on viem. Builders use it to show ENS names in place of addresses and to manage names from their own app. It works on Ethereum mainnet and Sepolia.

Curvegrid MultiBaas मल्टी-चेन EVM बैकएंड को तैनात करने और संचालित करने के लिए REST API के साथ एक होस्टेड कंट्रोल प्लेन है, जब आप सभी ऑप्स को इन-हाउस बनाए बिना प्रबंधित कुंजियाँ, इंडेक्सिंग हुक और डैशबोर्ड चाहते हैं।

Wagmi, Viem के ऊपर एक React हुक लेयर है, जो प्रत्येक प्रोजेक्ट में वॉलेट के बुनियादी ढांचे को फिर से बनाए बिना फ्रंटएंड में इथेरियम स्थिति को पढ़ने, लिखने और कैश करने के लिए है।

Impersonator.xyz डेवलपर्स को निजी कुंजियों के बिना किसी भी पते का रूप धारण करते हुए WalletConnect, एक iframe शिम, या ब्राउज़र एक्सटेंशन के माध्यम से विकेंद्रीकृत एप्लिकेशन (dapp) से जुड़ने की अनुमति देता है, जो उन QA टीमों के लिए आदर्श है जिन्हें बैलेंस का पूर्वावलोकन करने, Tenderly सिमुलेशन के लिए कॉल डेटा कैप्चर करने, या वॉलेट प्रवाह का सुरक्षित रूप से रिग्रेशन-टेस्ट करने की आवश्यकता होती है।

ant-design-web3 is a React component library from the Ant Design team for wallet connection and account interfaces. Builders drop it into a React application as an alternative to RainbowKit or ConnectKit.

Swiss-Knife सभी उपयोगी EVM टूल्स को एक ही स्थान पर एकत्रित करता है ताकि डिबगिंग करने या नई चीजें बनाने के दौरान डेवलपर अनुभव को आसान बनाया जा सके।

Nexth is a Next.js starter kit wired up with viem, wagmi, Sign-In with Ethereum, and Tailwind. Builders clone it to start from a working frontend rather than assembling the same pieces again.

Human Passport aggregates identity credentials, called Stamps, into one Unique Humanity Score per wallet, so projects can check that an address is a distinct person before an airdrop, grant round, vote or signup. Read scores from the REST API or drop in the Passport Embed React component.

thirdweb हर EVM चेन पर संपूर्ण Web3 ऐप्स बनाने के लिए फ्रंटएंड, बैकएंड और ऑनचेन टूल के साथ एक फुल स्टैक, ओपन-सोर्स Web3 डेवलपमेंट प्लेटफ़ॉर्म है।

Alchemy का Modular Account एक अधिकतम मॉड्यूलर, अपग्रेड करने योग्य स्मार्ट कॉन्ट्रैक्ट खाता है जो ERC-4337 और ERC-6900 के अनुकूल है। Alchemy का Modular Account बाज़ार में सबसे कुशल स्मार्ट खाता है जिसका v2 रिलीज़ फरवरी 2025 में जारी किया गया है।

EAS किसी भी चीज़ के बारे में ऑनचेन या ऑफचेन अनुप्रमाणन करने के लिए एक बुनियादी ढांचा सार्वजनिक वस्तु है। अनुप्रमाणन डेटा के संरचित टुकड़ों पर डिजिटल हस्ताक्षर होते हैं जिनका उपयोग ऑनलाइन और ऑनचेन अधिक विश्वास बनाने के लिए किया जाता है।

Coinbase Wallet SDK connects applications to Coinbase Wallet through the injected provider and the mobile WalletLink flow. Builders use it to support Coinbase Wallet users on web and mobile.

Reown AppKit, formerly Web3Modal and the WalletConnect SDK, is a wallet-connection SDK with a hosted relay, support for over 700 wallets, and embedded logins. Application builders use it to cover both external wallets and embedded sign-in from one integration.

Web3-Onboard is a framework-agnostic wallet-connection library supporting more than 35 wallets and the EIP-1193, 1102, 3085 and 3326 standards, started by Blocknative and now maintained by thirdweb. Builders install it when the frontend is not React or must cover many wallet providers.

RainbowKit is a customizable React wallet-connection interface built on wagmi. React builders add it when an application needs a ready-made connect flow instead of wiring wallet selection by hand.

ConnectKit provides React wallet-connection components built on wagmi. React builders drop it in when they want prebuilt connect buttons and modals for an application.

Web3Auth is an MPC and threshold key-management SDK that backs seedless wallets created from a social login. Builders use it when users should sign in with an existing account instead of a seed phrase.

Magic is an embedded non-custodial wallet SDK with email and social login and delegated key management. Builders integrate it to give users a wallet behind a familiar login flow.

Dynamic is an SDK covering wallet connection, embedded MPC wallets, and application authentication. Builders choose it when an application must serve both existing wallet users and new users who need one created.

ethr-did-resolver resolves decentralized identifiers anchored to Ethereum addresses. Applications that handle ethr identifiers install it to look up and manage those records.

mipd is a set of TypeScript utilities implementing EIP-6963 multi injected provider discovery for detecting installed browser wallets. Builders install it on its own when they need wallet discovery without pulling in wagmi.

Privy provides embedded wallet and authentication SDKs with configurable custody and signing permissions. Builders use it to create wallets during sign-up and support email, social, or passkey login.

React Native Passkeys iOS, Android और Web प्लेटफ़ॉर्म पर एक WebAuthn-स्वरूपित पासकी API प्रदान करता है, ताकि आप नेटिव मोबाइल वॉलेट या उपभोक्ता ऐप शिप करते समय मौजूदा ऑथ बैकएंड का पुन: उपयोग कर सकें।

MetaMask Connect is the SDK that connects web, mobile and game applications to the MetaMask wallet, replacing the deprecated MetaMask SDK with direct wallet communication and multichain support. Builders install the connect-evm package to reach MetaMask users from any frontend.

ERC-8128 (RFC 9421 HTTP Message Signatures एक्सटेंशन) का उपयोग करके Ethereum वॉलेट के साथ HTTP अनुरोधों पर हस्ताक्षर करने और सत्यापित करने के लिए TypeScript लाइब्रेरी, जो वॉलेट-आधारित प्रमाणीकरण और अनुरोध अखंडता को सक्षम करती है।

जब आप EVM चेन के लिए Flutter या मोबाइल क्लाइंट बना रहे हों, तो Variance_dart पासकी-फर्स्ट वॉलेट, EIP-1271 हस्ताक्षर फ्लो और ENSIP-15 सामान्यीकरण के लिए एक Dart SDK स्टैक है।

एन्क्रिप्टेड वॉलेट्स और गोपनीयता सुविधाओं के साथ पासवर्डलेस Web3 प्रमाणीकरण SDK।

noble cryptography न्यूनतम-निर्भरता वाली TypeScript क्रिप्टोग्राफ़िक लाइब्रेरी का एक परिवार है जो पठनीय स्रोत, हस्ताक्षरित रिलीज़ और पारदर्शी npm बिल्ड को प्राथमिकता देता है, और ये मेटामास्क, Rabby, Rainbow सहित अधिकांश आधुनिक JavaScript वॉलेट और पूरे इकोसिस्टम में कई SDK का आधार हैं।

Trezor Connect is a JavaScript SDK for integrating Trezor hardware wallet signing, including Ethereum, into applications and wallets. Builders use it when users should sign with a Trezor device.

blst is a multilingual BLS12-381 signature library and the BLS implementation behind most Ethereum consensus clients. Builders link against it in Rust, C, or Go when writing validator or consensus tooling.

The Ledger hw-app-eth package is the JavaScript API for signing Ethereum transactions and messages with a Ledger device, and it sits behind the Ledger connectors in wagmi and viem. Wallet and application builders import it to add hardware wallet signing.

py_ecc is a Python library for elliptic curve pairing operations over bn128 and BLS12-381, used by py-evm and other Python tooling. Builders import it for precompile or BLS work in Python.

eth-crypto is a set of JavaScript helpers for signing, verifying, recovering addresses, and ECIES encryption alongside ethers or web3. Builders import it for one-off cryptographic steps that the client libraries do not expose directly.

mcl from herumi is a portable pairing-based cryptography library used for BLS signature operations by several Ethereum consensus clients. Builders link against it for BLS work in C++ or Go.

noble secp256k1 is a standalone pure JavaScript library for secp256k1 signing and ECDH, used by many wallets and libraries. Builders install it on its own when they need signing without the wider noble curves package.

js-ethereum-cryptography is an audited JavaScript package bundling the hashing and curve primitives that tooling such as ethers.js and web3.js builds on. Builders install it directly when they need keccak, secp256k1, or BIP-39 work without a full client library.

k256 from RustCrypto is a pure Rust secp256k1 implementation covering ECDSA signing, verification, public key recovery, Schnorr, and ECDH, and it sits under reth, Alloy, and most Rust tooling. Rust builders depend on it directly when they handle signatures themselves.

Web3Signer is a remote signing service that keeps keys in a vault or hardware security module. Node and validator operators run it so signing happens outside the client process.

c-kzg-4844 is the reference C implementation, with Rust bindings, of the KZG polynomial commitment scheme used for EIP-4844 and EIP-7594 blobs, and it is embedded in most execution and consensus clients. Rollup and blob tooling imports the bindings to produce KZG commitments and proofs.

The OKX js-wallet-sdk is a TypeScript signature SDK covering Bitcoin, Ethereum, Solana, Cosmos, and other chains. Builders install it to derive keys and sign transactions for several chains through one API.

The Fireblocks SDK connects applications to Fireblocks' MPC wallet infrastructure for signing, transfers, and treasury operations. Builders use it to automate transactions and approval policies for wallets managed through Fireblocks.

Turnkey offers an API and SDK for secure key generation and transaction signing backed by trusted execution environments. Builders use it to create and operate wallet infrastructure without holding raw private keys in their own code.

eth-keys is a Python library for secp256k1 keys and signatures, and it sits under eth-account and web3.py. Python builders import it when they need key and signature operations directly.

micro-eth-signer is a minimal JavaScript library for building and signing Ethereum transactions, built on the audited noble cryptography libraries by the same author. Builders install it when a small signing dependency matters more than a full client library.

coins-bip32 is a Rust library for BIP-32 hierarchical deterministic key derivation, used by ethers-rs and other Rust wallets and signers. Rust builders add it when an application derives keys from a seed.

eciesjs implements the Elliptic Curve Integrated Encryption Scheme for secp256k1 in JavaScript. Builders import it to encrypt and decrypt data against an Ethereum-style keypair.

keypo is a local-first command line tool for hardware-bound key management and encrypted secret storage, aimed at AI agents that hold credentials. It installs from a Homebrew tap on macOS.

Lit Protocol is a decentralized network for threshold key management with programmable signing through its programmable key pairs. Builders use its SDK when signing or decryption should follow rules enforced by a network rather than a single key holder.

The eth-infinitism account-abstraction repository holds the reference ERC-4337 contracts, including SimpleAccount, plus a TypeScript SDK from the authors of the specification. Builders use it as the baseline implementation when creating ERC-4337 accounts.

Alchemy aa-sdk, shipped as Account Kit, is a full-stack smart wallet SDK with embedded wallets and a gas manager. Application builders use it to give users an account and sponsored transactions without a separate wallet app.

Rundler, Alchemy का मॉड्यूलर Rust ERC-4337 बंडलर है जिसे क्षैतिज रूप से स्केल की गई तैनातियों के लिए लक्षित किया गया है; आज कई इथेरियम उपयोगकर्ता संचालन वर्कलोड इस पर चलते हैं।

Coinbase Smart Wallet is a passkey-based smart account with the largest share of deployed wallets. Application builders integrate it so users sign with a passkey instead of managing a seed phrase.

Skandha Etherspot का TypeScript ERC-4337 बंडलर है जो वैकल्पिक MEV सुरक्षा और साझा मेमपूल संगतता के साथ उपयोगकर्ता संचालन सबमिशन, गैस अकाउंटिंग, और मेमपूल रूटिंग को अनुकूलित करता है, और Etherspot उस साझा मेमपूल स्टैक को उत्पादन में चलाता है।

Openfort is an embedded wallet SDK with authentication, ERC-4337 smart accounts, and self-hostable key management. Builders use it to give users a wallet inside the application without a separate wallet install.

Sequence, published as 0xsequence, is a smart-contract wallet SDK with embedded wallets, a relayer, an indexer, and gasless transactions. Builders use it when a game or application needs wallets and transaction plumbing from one stack.

Gelato is a hosted network that provides a bundler, paymaster and relay for smart accounts together with Web3 Functions for scheduled and event-driven contract execution. Builders use it to run gasless transactions and contract automation without operating those services themselves.

Particle Network is a hosted wallet-abstraction stack that bundles a bundler, paymaster, and social login. Builders choose it when they want account creation, login, and transaction sponsorship from one service.

Base Account SDK is Coinbase's package for Base Account, a smart-contract wallet with passkey signing and gasless transactions. Web builders install it to add passkey sign-in and sponsored transactions, separate from the older Coinbase Wallet SDK.

The MetaMask Delegation Framework, known as Gator, is a set of contracts that let one account grant specific revocable permissions to another account or agent along the lines of ERC-7715 and ERC-7710. Teams building delegated or agent-controlled permissions import these contracts and write their own caveat enforcers against them.

Ithaca Account is the set of EIP-7702 smart account contracts behind Porto, an account standard for web authentication and payments. Teams picking an EIP-7702 implementation can read, fork, or deploy these contracts.

1 JSONRPC अनुरोध में कई ethereum निरंतर फ़ंक्शन कॉल को कॉल करने की क्षमता

Alto is a TypeScript ERC-4337 bundler from Pimlico that also runs behind their hosted service. Infrastructure builders run it themselves when they need to operate a bundler instead of relying on a third party.

Kernel from ZeroDev is a modular ERC-7579 smart-account contract with wide deployment. Wallet builders deploy it when an account needs pluggable validators and executors.

The Safe 4337 module adds native ERC-4337 support to Safe multisig accounts. Safe builders install it so an existing multisig can be driven by user operations through a bundler.

permissionless.js from Pimlico is a vendor-neutral TypeScript library built on viem for ERC-4337 accounts. TypeScript builders use it to assemble and submit user operations while keeping the choice of bundler and paymaster open.

नामित स्वामित्व के साथ हल्के, ओपन सोर्स, ऑडिटेड और गैस-अनुकूलित ERC-4337 संगत स्मार्ट कॉन्ट्रैक्ट खातों का एक सेट

The ZeroDev SDK is a smart-account SDK for the Kernel account with modular validators and session keys. Account-abstraction builders use it to create Kernel accounts and delegate limited signing rights to sessions.

Nexus from Biconomy is a modular ERC-7579 smart-account contract aimed at high-volume applications. Wallet builders deploy it as the account implementation behind their smart wallets.

Voltaire एक ERC-4337 बंडलर कार्यान्वयन है जिसे आप तब चला सकते हैं जब आपको खाता अमूर्तन वॉलेट के लिए कॉन्फ़िगर करने योग्य उपयोगकर्ता संचालन रिलेइंग की आवश्यकता हो।

Arka is the open-source paymaster service from Etherspot for sponsoring transaction gas. Builders self-host it when gas sponsorship for ERC-4337 accounts should run on their own infrastructure.

executooor एक पुन: प्रयोज्य निष्पादक कॉन्ट्रैक्ट पैटर्न पर केंद्रित है ताकि स्क्रिप्ट हर बार कस्टम राउटर को फिर से तैनात किए बिना Viem या ethers के माध्यम से प्रतिनिधि कॉल, टोकन अनुमोदन और एटॉमिक ऑनचेन चरणों को एक साथ जोड़ सकें।

AbstractionKit, वायर प्रोटोकॉल को शुरुआत से लागू किए बिना ERC-4337 फ्लो—उपयोगकर्ता संचालन, पेमास्टर, और बंडलर कॉल—को वायर करने के लिए एक TypeScript सहायक लाइब्रेरी है।

safe7579 from Rhinestone is an adapter that makes Safe accounts ERC-7579 compliant. Builders add it when they want portable ERC-7579 modules to run on a Safe, usually alongside the Safe 4337 module.

Rhinestone SDK, the successor Rhinestone names for its retired ModuleKit, adds smart wallets with passkeys, session keys and multichain transactions to an application. Builders use it when users should pay, swap or call contracts on one chain with funds from another.

The Biconomy SDK, published as AbstractJS for the Nexus account, builds ERC-4337 smart accounts with paymaster and bundler services. Builders use it when an application needs sponsored or gasless transactions.

0x provides hosted APIs for trading tokens from apps and wallets. Swap API aggregates prices from 150+ liquidity providers and returns an unsigned transaction to sign and submit, Gasless API relays gasless approvals and swaps, and Cross-Chain API returns routes across bridge providers with ready-to-sign transactions.

AaveKit is Aave's SDK, a TypeScript client and React hooks over the Aave GraphQL API. Builders use it to read markets and user positions and to build supply, borrow, repay and swap transactions without calling the contracts by hand. Aave v3 and v4 are served by separate SDK versions of the same packages (0.x for v3, 4.0 and later for v4).

Crossmint offers stablecoin APIs aimed at enterprises, including cross-chain flows. Builders use it to add stablecoin payments to an application without building the payment rails.

eth-prices is a Rust crate that estimates the price of an Ethereum asset by reading Uniswap V2 and V3 pools and ERC-4626 vaults through an RPC provider, with no exchange rate API involved. Rust builders add it when a price should be derived from onchain liquidity rather than read from an oracle feed.

The Lido Ethereum SDK is the official package for staking and managing stETH and wstETH through the Lido protocol. Builders install it to add staking to an application without writing the Lido contract calls by hand.

The Machine Payments Protocol SDK, published as mppx by the wevm team behind viem and wagmi, is a TypeScript implementation of an agent payments specification. Builders install it to let a service or agent pay and charge programmatically.

The Peer SDK (formerly ZKP2P) adds a fiat-to-crypto onramp to an app, where users pay through services like Venmo, Revolut or Wise and receive tokens onchain. It also manages seller deposits and liquidity. The protocol runs on Base.

Request Network is a protocol and JavaScript library for creating, paying, and tracking crypto invoices and payment requests onchain. Builders install the client library to add invoicing to their own application.

The Splits SDK is a viem-based TypeScript library for creating and managing 0xSplits contracts, which share incoming payments between several recipients. It also covers waterfalls, swappers and vesting, and a React wrapper ships as a separate package.

Stripe Crypto Onramp is an embeddable fiat-to-crypto onramp SDK for web, iOS, Android, and React Native that delivers purchased crypto to a user's wallet. Builders embed it so users can fund a wallet with a card instead of transferring in.

web3-ethereum-defi is a Python library for DeFi integration and data research, with wrappers for Uniswap, Aave, Chainlink, and USDC on top of web3.py. Python builders import it instead of writing those protocol wrappers themselves.

x402 is an open payments protocol built on the HTTP 402 status code that lets an application or agent pay per request in stablecoins without accounts or API keys. Builders add its middleware to a service to charge per call, or to a client so it can pay.

Snapshot DAOs के लिए लचीली वोटिंग रणनीतियों और सत्यापन प्लगइन्स के साथ गैस-रहित ऑफचेन शासन के रूप में शुरू हुआ, और टीम ने बाद में Snapshot X लॉन्च किया, जो एक मॉड्यूलर ऑनचेन वोटिंग स्टैक है जो चतुर प्रमाणन और क्रॉस-चेन वोटिंग पावर अकाउंटिंग के माध्यम से गैस को कम करते हुए निष्पादन को न्यूनतम-विश्वास रखता है।

Aragon OSx मॉड्यूलर संगठनों को लॉन्च करने के लिए ऑनचेन DAO फ्रेमवर्क बुनियादी ढांचा है जो ऑडिट किए गए अनुबंध प्रिमिटिव्स के साथ राजकोषों और प्रोटोकॉल पैरामीटर को नियंत्रित करते हैं।

Agora is an onchain governance application used by protocols including Optimism, ENS, and Uniswap to run delegate voting. It is a Next.js application a DAO deploys rather than a library a builder imports.

DAOhaus मॉड्यूलर कॉन्ट्रैक्ट्स, ऐप्स और सामुदायिक शासन वर्कफ़्लो के साथ DAO को लॉन्च करने और संचालित करने के लिए ओपन-सोर्स टूलिंग प्रदान करता है।