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 developer with your preferred framework: React, React Native, Unity or Unreal.

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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.

Embedded Wallet Demo

Try the in-browser demo of our embedded 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. Works alongside EOA wallets via linking.

Quickstart: Real-Time Indexer

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

Quickstart: Payments

Accept card and crypto payments, enable on-ramps, and streamline purchases with our drop-in Checkout SDK.

Join our Community

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

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Core Building Blocks

Wallets

Embedded, non-custodial wallets with gasless options and minimal user friction. Support web2 sign-in, link EOA wallets, and keep UX clean without transaction pop-ups.

Real-Time Indexer

High-performance indexing for EVM chains: balances, token prices, transfers, and contract events. Ready to query in real time and at scale.

Payments

Card + crypto checkout, fiat on-ramp, and seamless in-app purchases. Bring funds on-chain quickly with simple, modular APIs.

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SDKs

Web SDK

Built on wagmi for familiar DX. Connect embedded or external wallets, call contracts, and integrate checkout in minutes.

React Native

Ship native mobile experiences with the same wallet, indexing, and payments primitives.

Unity

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

Unreal

Build high-fidelity game experiences while keeping wallet, data, and payments modular and composable.

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Commerce & Payments

White-Label 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.

Checkout

Drop-in purchase flow for cards and crypto with optional gasless execution.

Fiat On-ramps

Convert users from fiat to crypto globally and move funds on-chain with less friction.

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Build, Ship, and Operate

Contracts & Collectibles

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

Analytics

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

Sidekick

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

Wallet Linking

Let users connect embedded and external wallets for asset discovery, balance queries, and flexible liquidity flows.