Sequence
Sequence is a modular crypto infrastructure stack that unifies smart wallets, 1-click cross-chain payments, and real-time data layers across EVM-compatible blockchains.
Overview
Sequence is a comprehensive modular infrastructure platform designed to simplify and unify key components of Web3 development across Ethereum Virtual Machine (EVM) compatible chains. It provides developers and ecosystems with smart wallets, seamless 1-click cross-chain payment solutions, and real-time multi-chain data indexing. This unified stack enables building scalable, user-friendly blockchain applications with reduced friction in wallet management, payments, and data access.
At its core, Sequence offers smart wallets that consolidate user accounts across multiple chains and applications, eliminating wallet fragmentation and enabling secure sandboxed sessions. Developers can integrate social and email authentication, passkeys, and time-lock recovery mechanisms to improve user onboarding and account security. The Payments SDK supports universal 1-click crypto transactions, allowing users to pay or swap tokens across chains from any wallet, simplifying complex cross-chain interactions.
The real-time Indexer API delivers near-instant multi-chain data such as token balances, contract events, and price feeds, with webhook support for reactive applications. Sequence supports a broad range of SDKs and APIs including Web (React, Next.js, Vue), Mobile (React Native), Unity, Unreal, Go, and Node.js, enabling integration into diverse development environments. Its modular design allows teams to adopt individual components or the full stack depending on their needs.
Sequence is actively used in production by millions of users and integrated with leading blockchain ecosystems, gaming platforms, DeFi protocols, and NFT marketplaces. Developers can get started quickly using boilerplates and starter projects available in the documentation. The platform also offers hosted storefronts for NFT primary sales and ecosystem wallet launches. Comprehensive docs, community support via Discord, and a public GitHub repository facilitate onboarding and customization.
The Problem
Developers face fragmentation in wallet solutions, complex cross-chain payment flows, and unreliable multi-chain data access, which hinder building seamless Web3 applications. Managing user accounts securely while providing easy onboarding and real-time data is challenging across multiple EVM chains.
The Solution
Key Features
Web, Mobile, Unity, and Unreal SDKs
SDKs for React, Next.js, Vue, React Native, Unity, and Unreal enable broad platform integration.
Hosted NFT Storefronts
Launch primary-sale NFT shops with built-in checkout and payment support.
Transactions API with Gas Sponsorship
Send transactions with automatic gas estimation and optional sponsorship for better UX.
Sidekick Backend
Dockerized backend for simplified blockchain reads/writes and secure key management.
Key Strengths
How Developers Use Sequence
Building Ecosystem Wallets with Social Login
Developers can launch branded wallets on their domains that support passkeys, social authentication, and secure account recovery.
Enabling 1-Click Cross-Chain Payments
Integrate the Payments SDK to allow users to pay or swap tokens instantly across multiple EVM chains from any wallet.
Real-Time Multi-Chain Data for DeFi and Gaming
Use the Indexer API to fetch live balances, token prices, and contract events with webhook notifications to power responsive DeFi apps and games.
Works Well WithEthereumAvalancheBaseSKALE
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Pricing
Free | Enterprise | |
|---|---|---|
| Price (Monthly) | Free | Custom pricing |
| Price (Annual) | Free | Custom pricing |
| Messaging | N/A | Dedicated support and SLAs |
| Support | Community support via Discord and GitHub | Priority support with onboarding assistance |
| Analytics |
Resources
Sequence provides extensive resources including detailed documentation, SDK guides, API references, boilerplates, and community support channels to help developers integrate wallets, payments, and data indexing efficiently.