Sequence is a modular web3 developer platform and infrastructure stack that gives you the building blocks to ship onchain apps fast. Leverage our Wallets, Real-Time Indexer, and Payment solutions, and plug them into your existing stack. Start with creating your project on Sequence Builder, and develop with your preferred framework: React, React Native, Unity or Unreal.

​
Start Here

Create your first project

Set up your project on Sequence Builder, grab your API keys, and enable the core building blocks (Wallets, Indexer, Payments) for your app.

Ecosystem Wallet Demo

Try the in-browser demo of our Ecosystem Wallet with Web SDK: Customizable UI, brandable flows, and production-ready auth.

Quickstart: Wallets

Add a non-custodial, pop-up-free wallet experience with social/email sign-in.

Quickstart: Real-Time Indexer

Query balances, transfers, and contract events across EVM chains with low-latency APIs.

Quickstart: Payments

Integrate 1-click cross-chain payments with any wallet using our Trails SDK, or launch hosted primary-sale storefronts with built-in checkout.

Join our Community

Get help, share feedback, and talk shop with other builders.

​
SDKs

Web SDK

Connect ecosystem or external wallets to any React or Next.js app.

React Native

Ship native mobile wallet experiences with Expo and React Native.

Unity

Add on-chain features to interactive apps and games using Unity.

Unreal

Build high-fidelity web3 game experiences with Unreal.

​
Commerce & Payments

Trails SDK

Drop-in 1-click cross-chain payments with any wallet, for fund, swap, earn and pay flows.

Hosted Marketplace

Launch a branded collectibles marketplace rapidly with integrated checkout.

Marketplace APIs

Build custom commerce flows with APIs for listings, bids, and settlements within your custom app.

Hosted Shop

Launch a hosted primary-sale storefront with built-in checkout.

​
Build, Ship, and Operate

Sidekick

Dockerized backend for simplified blockchain reads/writes with secure key management.

Contracts

Rapidly deploy collectible, sale, packs contracts using audited templates.

Analytics

Observe wallet, contract, and marketplace activity to understand growth, retention, and revenue.

Cross-Chain Balances

Query balances, transfers, and contract events across EVM chains with low-latency APIs.