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Here are some production-grade modules that can be used in Cosmos SDK applications, along with their respective documentation:
- Auth - Authentication of accounts and transactions for Cosmos SDK applications.
- Authz - Authorization for accounts to perform actions on behalf of other accounts.
- Bank - Token transfer functionalities.
- Bank v2 - Token transfer functionalities, enhanced.
- Circuit - Circuit breaker module for pausing messages.
- Consensus - Consensus module for modifying CometBFT's ABCI consensus params.
- Distribution - Fee distribution, and staking token provision distribution.
- Epochs - Allow other modules to set that they would like to be signaled once every period
- Evidence - Evidence handling for double signing, misbehaviour, etc.
- Feegrant - Grant fee allowances for executing transactions.
- Genutil - Genesis utilities for the Cosmos SDK.
- Governance - On-chain proposals and voting.
- Mint - Creation of new units of staking token.
- NFT - NFT module implemented based on ADR43.
- Params - Globally available parameter store.
- Protocolpool - Functionalities handling community pool funds.
- Slashing - Validator punishment mechanisms.
- Staking - Proof-of-Stake layer for public blockchains.
- Tx - Tx utilities for the Cosmos SDK.
- Upgrade - Software upgrades handling and coordination.
- Validate - Global ante/post handlers and tx validator setup.
To learn more about the process of building modules, visit the building modules reference documentation.
The IBC module for the SDK is maintained by the IBC Go team in its own repository.
Additionally, the capability module is from v0.50+ maintained by the IBC Go team in its own repository.
The CosmWasm module enables smart contracts, learn more by going to their documentation site, or visit the repository.
Read more about writing smart contracts with solidity at the official evm documentation page.