Neutron offers several specialized modules that provide unique functionality for developers building on the platform. Each module is designed to solve specific problems commonly encountered in DeFi applications.

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DeFi Modules

These modules are designed for direct integration with your smart contracts and DeFi applications:

Interchain Queries (ICQ)

Query data from any IBC-connected blockchain

Interchain Transactions (ICTX)

Execute transactions on remote chains via ICA

Cron

Schedule automated contract executions

Contract Manager

Safe IBC acknowledgment handling

Dex

Decentralized exchange functionality

Harpoon

Staking hooks for historical voting power

Transfer

IBC transfers with contract callbacks

Token Factory

Create and manage custom tokens

GMP

General Message Passing protocol

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System Modules

These modules handle chain-level operations and are primarily managed through governance:

Admin

DAO governance operations

Revenue

Validator compensation system

Fee Burner

NTRN burning & treasury management

Fee Refunder

IBC relayer incentives

IBC Rate Limit

Network protection mechanisms

Dynamic Fees

Asset price management for fee calculations

Global Fee

Network-wide minimum gas prices

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Integration Patterns

Most Neutron modules follow consistent patterns when used in CosmWasm smart contracts:

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1. Import Dependencies

use neutron_sdk::interchain_queries::...; // for ICQ
use neutron_sdk::bindings::...; // for other modules

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2. Create Messages

let msg = NeutronMsg::RegisterInterchainQuery { ... };

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3. Handle Callbacks

#[entry_point]
pub fn sudo(deps: DepsMut, env: Env, msg: SudoMsg) -> StdResult<Response> {
    match msg {
        SudoMsg::ModuleCallback { ... } => { ... }
        _ => Err(StdError::generic_err("unsupported sudo message")),
    }
}

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Documentation Structure

Each module provides comprehensive documentation following the Divio system:
  • Overview: Core concepts and capabilities
  • Explanation: Detailed mechanisms and architecture
  • How-to Guides: Step-by-step instructions
  • Reference: Complete API and technical specifications