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The problem

Tokenized assets move in seconds on-chain, but settlement still takes days. Every platform rebuilds the same compliance checks, escrow logic, and counterparty coordination from scratch. Cross-platform settlement doesn’t exist.

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What KeyStone OS does

KeyStone OS is neutral settlement infrastructure. We sit between tokenization platforms, custodians, and compliance providers to coordinate atomic settlement of tokenized real-world assets. Platforms integrate once via our REST API and gain:
  • Atomic settlement - All legs of a transaction complete together, or none do. No partial execution.
  • Dual-layer compliance - Off-chain entity screening and on-chain wallet risk scoring at every settlement, in 2-4 seconds.
  • Cross-platform settlement - Platform A’s seller and Platform B’s buyer in a single atomic settlement.
  • Smart contract escrow - Deposits locked until all conditions are met. Automatic rollback on timeout.
  • Template-driven workflows - Define your settlement state machine once. The engine executes it deterministically.

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Architecture overview

Your Platform (API Client)
        |
        v
   KeyStone OS API
        |
        +--- Settlement Engine (state machine orchestration)
        +--- Compliance Layer (LSEG World-Check + CipherOwl)
        +--- Escrow Contracts (on-chain lock/release/rollback)
        +--- Webhook Dispatch (real-time event delivery)
KeyStone never custodies funds. We coordinate. The escrow smart contract holds deposits until settlement conditions are met, then executes the atomic swap.

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Key concepts

ConceptDescription
SettlementA coordinated transaction between parties, driven through a state machine.
TemplateA reusable definition of a settlement workflow: states, transitions, and actions.
PartyAn entity in a settlement with a specific role (e.g. buyer, seller). Details are provided inline at settlement creation.
LegA single obligation within a settlement (e.g. asset delivery, payment).
ActionAn operation the engine executes at each state (e.g. compliance check, escrow deposit).

Next: Quickstart

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