Sequence Review 2026: Wallets, Payments and Data for EVM Apps

Sequence is a modular crypto infrastructure stack for builders. Its homepage groups the product into three parts: smart wallets, 1-click cross-chain payments and a real-time multi-chain indexer. It also sells packaged solutions for chains, DeFi, stablecoins and gaming.

The company was previously called Horizon Blockchain Games. One report names Peter Kieltyka as CEO and says it has raised $53M from investors. Its platform originally powered Horizon's own games and marketplace before being offered more widely.

The homepage now states that Polygon Labs is acquiring Sequence to power its Open Money Stack. The terms and timeline are not given there. The site also carries a testimonial from the founder of Somnia, which uses Sequence's Somnia Builder.

Sequence is a set of services that developers plug into an app. The wallet layer gives each user a smart-contract account that can work across apps in an ecosystem, with account recovery and sandboxed sessions to limit what a connected app can do.

The payments layer, built around Trails, uses what one report calls intent-based interoperability. Instead of manually bridging and swapping, the user states a goal such as buying an NFT. The system looks for a route, can combine balances held on different chains, and completes the steps. Standard wallets often fail with insufficient-funds errors when a balance sits on the wrong chain. Trails is designed to find a workable route if one exists.

The indexer reads blockchain activity and serves it through APIs and webhooks, so developers do not have to run their own data pipelines. Together the three pieces aim to let a team ship a multi-chain app without building this infrastructure itself.

Sequence does not publish pricing or fee schedules on its homepage. Developers would see plan details and usage limits in the dashboard or by contacting the team.

End users of apps built on Sequence still pay normal network gas, unless an app sponsors it. The homepage mentions gasless buys for gaming. Swap and bridge costs inside payment flows are not detailed in the information reviewed.

Sequence is a non-custodial-style developer toolkit, but the homepage does not publish audit reports, a bug bounty or a custody breakdown. Developers should ask the team for audit details and review the smart-wallet contracts before integrating them. Cross-chain routing adds bridge and swap risk that sits on top of the wallet itself.

The pending acquisition by Polygon Labs may change ownership, terms and support. No hack or shutdown appears in the information reviewed. Sequence does not publish a regulatory licence, and its terms and privacy pages are linked from the footer for review.

Sequence is for app developers, game studios, chain ecosystems and DeFi or stablecoin teams building on EVM networks. It fits teams that want embedded wallets, one-click payments and real-time data without building each layer themselves. It is less relevant to individual traders who are not integrating or building anything.