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SubsecondHave one built

Pitch · Subsecond

Twelve products that only exist because Arc settles money in under a second.

On 16 September 2026 Arc’s team published a Request for Builders naming four frontiers where programmable money makes something buildable that was not buildable before. Subsecond is three products on each, every one live on mainnet with no wallet needed to see it, every contract deployable from a wallet, every product with a revenue line already in its contract and a pitch of its own. It is an app store for Arc with one difference: whoever picks a product owns it.

Three on each of Arc’s four frontiers

  1. 01

    Global money and embedded finance

    Arc asked forPlatforms built for one country or community, where local context is the moat. Commercial agreements written as contract logic. Payroll that feels like one workflow.

  2. 02

    The agentic economy

    Arc asked forAutonomous businesses that hold a treasury and pay for what they use. Markets that pay on verified completion. Insurance for the moment an agent fails.

  3. 03

    Onchain credit and collateral

    Arc asked forCollateral a lender can verify. Credit markets for the long tail that cannot reach investors today. Risk protection bundled into deposit and lending flows.

  4. 04

    The intelligent account

    Arc asked forA household run as a programmable balance. Baskets behind one interface, the system handling the rest. Money handed to an agent with a mandate and a limit.

One foundation

The twelve share four packages. A thirteenth product goes live in under an hour, and that foundation is what a grant buys as much as any single app.

  • Arc and Circle, typed

    One wrapper over every read and write that never throws, so every screen can say plainly what went wrong.

  • Motion and numerals

    Money that rolls because it moved, entrances, the app frame on a phone and a desk.

  • An identity per app

    Palette, faces and voice declared once per product, so no two of the twelve look alike.

  • Real before sign-in

    A labelled example on the real rules, so a stranger understands a product in ten seconds.

The ask

Each product carries its own draft figure on its pitch page. Together they are a portfolio for the Arc Builders Fund: one builder, twelve products, a foundation that compounds, and revenue in every contract. The first conversation decides which three to take to market first.

Arc’s programmes, as Arc lists them

  • Just getting started

    Microgrants

    For early experiments, prototypes and promising ideas that need a push.

  • Already shipping

    Developer grants

    Milestone-based funding and technical guidance for production applications already on Arc.

  • Building a company

    Arc Builders Fund

    Strategic investment and introductions through Circle Ventures for category-defining companies.

  • The community

    Arc House

    Hackathons, accelerators, workshops and office hours for people building on Arc.