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Overview
IntroductionWhat Note Systems IsWhy On-ChainWho It Is ForWallets
Concepts
Autocallable NotesBarrierObservationPhysical SettlementCoupon DiscoveryWorked Example
Protocol
Series LifecycleCOUPONSHIELDEscrow InvariantOracle and MarketCalendarFeesAutomation and CranksLegs on Other ChainsCredit
Swap
Swap OverviewHow Pricing WorksProviding LiquidityRisk and Coverage
Token
NOTELaunch AuctionsNOTEBondsTreasury FloorBuyback AuctionDesk
Risk
Risk OverviewMarket RiskOracle RiskIssuer and Stock Token RiskSmart Contract RiskRegulatory and Token Risk
Security
Testing MethodologyInvariantsStatic AnalysisFormal VerificationUpgrade SafetyAuditsBug BountyHackathonVulnerability Disclosure
Build on Note
Build on NoteEmbed a VaultDistribute NotesLend Against LegsEconomicsIntegration Checklist
Developers
Integrations for DevelopersInterfacesERC-1155 IdsEventsAddresses
Governance
Governance OverviewveNOTEProposals and VotingGaugesEmissionsUpgradeability and Recovery
Reference
GlossaryFAQ
Published documentationSnapshot 19 October 2026

Documentation

Understand the protocol, compare settlement outcomes and use the published interfaces.

Read the Overview

Choose a Reading Path

01

Understand the Structure

The two legs. The barrier. The conditions that shape an outcome.

CONCEPTS · WORKED EXAMPLES
02

Read the Risks

Read the settlement conditions, issuer restrictions and risks before taking a position.

MECHANICS · RISK
03

Build an Integration

Interfaces, assets and integration patterns. The pieces are here.

CONTRACTS · INTEGRATION
ESSENTIAL READING

Clarity Before Commitment

THE WORKED EXAMPLE

Worked Example

Compare three illustrative outcomes: autocall, cash settlement and physical settlement.

Follow the example

The COUPON Leg

USDG, conditional coupons and settlement

The SHIELD Leg

Stock collateral and coupon prefunding

Risk, Stated Plainly

What collateralisation does not remove

The Developer Reference

Interfaces, events and integration detail

There Is a Guide for That

Explore every protocol, token, security and governance topic.

Note SystemsClear concepts. Inspectable structures.Explore the app