Sequence

Sequence (sequence.xyz) is a web3 development platform that supplies infrastructure building blocks for onchain applications: smart contract wallets for ecosystems and developers, a payments layer for one-click crypto transactions across tokens, wallets and chains, and a real-time multi-chain indexer providing balances, token prices, contract events and webhooks across EVM chains. The company packages these into vertical solutions for chains (branded ecosystem hubs, wallets and liquidity), DeFi (swaps, vaults, lending with cross-chain data), stablecoins (one-click transfers and settlement) and gaming (player onboarding, gasless purchases and token economies).

The platform's developer surface includes the no-code Sequence Builder, a CLI (npx sequence-cli), and SDKs for Web, Node.js, Go, Unity, Unreal, React Native and Kotlin, plus sequence.js and open-source smart contract wallet contracts. The public 0xsequence GitHub organization hosts 119 repositories and a large library of boilerplates and demos covering embedded wallets, white-label marketplaces, primary NFT sales, server-side transaction relaying, fiat on-ramps and in-game marketplaces.

Sequence is a product of Horizon Blockchain Games (also referred to as Horizon), whose own products — the trading card game Skyweaver and the collectibles marketplace Niftyswap — run on the platform. Earlier descriptions of the platform emphasize gaming use cases: smart contract deployment, wallet solutions including a Vault and a Wallet-as-a-Service, in-game marketplaces with enforced royalties, payment support for fiat, crypto and cards, and batched and gasless transactions. A banner on the company's site states that Polygon Labs is acquiring Sequence to power the "Open Money Stack."

Founding story

Sequence originated as internal tooling: the team set out in 2017 to build Skyweaver, a web3 video game, found no developer tools that enabled the seamless user experiences it wanted, and built its own — making the team its own first customer. Architecture work on Sequence began in January 2018 at Horizon, the parent company.

Business model

Sequence sells developer infrastructure and platform services — wallets, payments and data indexing — to companies building onchain applications, offering both self-serve building blocks (SDKs, CLI, Builder console, boilerplates) and direct engagement ("talk with us about your roadmap"). Pricing terms are not disclosed in the available sources.

Not disclosed in the available sources; the company markets paid-looking developer platform services (wallets, payments, indexing) and invites prospects to contact sales, but no pricing or revenue mechanics are stated.

Traction

The company reports hundreds of games and apps, thousands of developers, millions of users and players, and billions of dollars in volume. Cited deployments include Skyweaver, which minted over a million items and ran an in-game marketplace on Sequence; Hunters On-Chain, a web3 action RPG reported to have seen a 4.5x increase in day-30 retention and a 7.2x rise in average revenue per user after integrating; Niftyswap; and DAZN Boxing, which uses Sequence Wallet to onboard users to its NFT collections. Polygon and Ubisoft are named among brands using the platform.

Latest developments

Sequence's website carries a notice that Polygon Labs is acquiring Sequence to power the Open Money Stack. The product line has broadened beyond gaming tooling to ecosystem smart wallets, one-click cross-chain payments and a real-time multi-chain indexer, with vertical offerings for chains, DeFi, stablecoins and gaming; a Somnia Builder is referenced as new. Repository activity in the 0xsequence GitHub organization continued through August 2026, including a Trails documentation repo, a Kotlin SDK for embedded wallets and a fork of a Solana relayer implementation.