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What is KeyStone?

KeyStone coordinates bilateral atomic settlement between institutions on different platforms and chains. One integration, every counterparty, any chain. Both counterparties submit settlement instructions independently. KeyStone matches them, runs compliance, and creates a settlement on-chain. From there, smart contracts handle everything autonomously - deposits, atomic execution, and finalization. No custody, no chain, assets never bridge.

Quickstart

Get your first settlement running in minutes.

Core Concepts

Understand settlements, templates, and the state machine.

API Reference

Complete REST API documentation with interactive examples.

Smart Contracts

On-chain infrastructure for trustless settlement.

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How it works

1

Instruct

Both parties submit settlement instructions via the REST API. KeyStone matches them and creates a settlement on-chain.
2

Comply

KeyStone screens parties off-chain (LSEG, CipherOwl) and attests results to the ComplianceRegistry on-chain. The contract enforces compliance.
3

Deposit

Parties deposit their assets directly to the escrow contract. KeyStone is not involved.
4

Settle

Contracts auto-execute the atomic swap and finalize. Both platforms receive webhook notifications.

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Key capabilities

  • Autonomous post-compliance - After compliance clears, contracts handle deposits, execution, and finalization without KeyStone in the loop.
  • Cross-platform settlement - Platform A’s seller, Platform B’s buyer. One atomic settlement.
  • Cross-chain ready - Bond on one chain, cash on another. Assets never bridge: the KeystoneRouter coordinates release across chains. The hosted platform currently settles single-chain.
  • No custody - There is no KeyStone-controlled withdrawal path; recipients and refunds are bound at registration and even the operator can only abort, which unlocks refunds to the depositors.
  • Depositor-driven timeout - The operator or any depositor can trigger timeout after the deadline, and the path cannot be paused. Funds are never locked.
  • Dual-layer compliance - Off-chain entity screening and on-chain wallet risk scoring, attested on-chain.
  • Full audit trail - Every state change is an on-chain event. Independently verifiable by any third party.