ibc-rs

Rust implementation of the Inter-Blockchain Communication (IBC) protocol that hosts all the data structures and on-chain logic implementations of various IBC core, clients and applications. This repository organized as a collection of sub-crates that can be used independently or together.

Project Structure

Crate	Description
ibc	Re-exports all the data structures and on-chain logic of various IBC core, clients and applications.
ibc-data-types	Re-exports all the IBC data types that are shared across different IBC implementations.
ibc-core	Contains data structures and implementations of all the IBC core specifications.
ibc-clients	Contains data structures and implementations of various IBC light clients.
ibc-apps	Contains data structures and implementations of various IBC applications.
ibc-testkit	Provides testing toolkit to aid ibc-rs and host chains in writing integration tests.
ibc-query	Contains utility traits and implementations for querying states of an integrated IBC module.
ibc-derive	Derive macros for ClientState and ConsensusState traits, reducing boilerplate.

Contributing

IBC is specified in English in the cosmos/ibc repo. Any protocol changes or clarifications should be contributed there.

If you're interested in contributing, please refer to the CONTRIBUTING guidelines. We welcome and appreciate community contributions!

Community calls

The IBC-rs community calls are now part of the IBC Core community calls. During these calls, we update the community on our current direction and gather feedback on what to work on next. The community calls are also a platform for you to update everyone else on what you're working on and find opportunities to collaborate.

Please join the Google group to receive a calendar invitation to the monthly meetings.

Resources

• IBC Website
• IBC Specification
• IBC Go implementation
• Protobuf definitions in Rust

ibc-rs in the wild

The IBC Protocol is integrated in numerous networks and projects. The ibc-rs implementation, in particular, is used for IBC integration, testing, or development for some of the most technically compelling use cases.

#	Integration use-case	Team	Used-Modules	Links	Phase
1	Solana IBC implementation	Composable	💯	Picasso Network	✅
2	Ethereum IBC relayer	Composable	💯	Picasso Network	✅
3	Polkadot SDK IBC implementation	Composable	💯	Picasso Network	✅
4	Nomic	Nomic	💯	Nomic network	✅
5	CosmWasm Tendermint Light Client	Informal	ics07	cosmwasm-ibc	✅
6	Namada	Anoma	💯	Namada	⏳
7	Sovereign	Informal	💯	sovereign-ibc	⏳
8	Hermes IBC relayer	Informal	💯	basecoin-rs	⚒️
9	Substrate pallet	Octopus	💯	Substrate IBC Pallet	⚒️
10	Near Protocol	Octopus	💯	near-ibc	⏳
11	Tendermint Light Client	Electron Labs	ics07	Electron-Labs/tendermint-rs	⏳
12	Starknet	Informal	👀	👀	👀
13	SP1 Tendermint Light Client	Interchain	ics07	cosmos/sp1-ics07-tendermint	⏳

Legend:

• ✅ IBC integration in production
• ⏳ IBC integration in development (testnet or devnet)
• ⚒️ used in testing and/or development
• 💯 full IBC integration
• 👀 early exploration phase

License

Copyright © 2024 Informal Systems Inc. and ibc-rs authors.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use the files in this repository except in compliance with the License. You may obtain a copy of the License at

https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.