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https://github.com/cosmos/ibc
Interchain Standards (ICS) for the Cosmos network & interchain ecosystem.
https://github.com/cosmos/ibc
blockchain cosmos distributed-ledger interchain
Last synced: about 1 month ago
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Interchain Standards (ICS) for the Cosmos network & interchain ecosystem.
- Host: GitHub
- URL: https://github.com/cosmos/ibc
- Owner: cosmos
- License: other
- Created: 2019-02-08T22:57:36.000Z (almost 6 years ago)
- Default Branch: main
- Last Pushed: 2024-10-29T15:45:40.000Z (about 1 month ago)
- Last Synced: 2024-10-30T01:59:26.786Z (about 1 month ago)
- Topics: blockchain, cosmos, distributed-ledger, interchain
- Language: TeX
- Homepage:
- Size: 53.3 MB
- Stars: 935
- Watchers: 78
- Forks: 381
- Open Issues: 102
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
- Codeowners: .github/CODEOWNERS
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README
# IBC
![banner](./assets/interchain-standards.png)
## Synopsis
This repository is the canonical location for development and documentation of the inter-blockchain communication protocol (IBC).
It shall be used to consolidate design rationale, protocol semantics, and encoding descriptions for IBC, including both the core transport, authentication, & ordering layer (IBC/TAO) and the application layers describing packet encoding & processing semantics (IBC/APP).
Contributions are welcome. See [CONTRIBUTING.md](meta/CONTRIBUTING.md) for contribution guidelines.
## What is IBC?
For a high-level explanation of what IBC is and how it works, please read [this blog post](https://medium.com/the-interchain-foundation/eli5-what-is-ibc-def44d7b5b4c).
## Interchain Standards
All standards at or past the "Draft" stage are listed here in order of their ICS numbers, sorted by category.
### Meta
| Interchain Standard Number | Standard Title | Stage | Maintainer |
| ---------------------------------------- | -------------------------- | ----- | ------------- |
| [1](spec/ics-001-ics-standard/README.md) | ICS Specification Standard | N/A | Protocol team |### Core Transport
| Interchain Standard Number | Standard Title | Stage | Implementations | Maintainer |
| ------------------------------------------------------------- | -------------------------- | --------- | --------------- | ------------- |
| [2](spec/core/ics-002-client-semantics/README.md) | Client Semantics | Candidate | [ibc-go](https://github.com/cosmos/ibc-go), [ibc-rs](https://github.com/cosmos/ibc-rs) | Protocol team |
| [3](spec/core/ics-003-connection-semantics/README.md) | Connection Semantics | Candidate | [ibc-go](https://github.com/cosmos/ibc-go), [ibc-rs](https://github.com/cosmos/ibc-rs) | Protocol team |
| [4](spec/core/ics-004-channel-and-packet-semantics/README.md) | Channel & Packet Semantics | Candidate | [ibc-go](https://github.com/cosmos/ibc-go), [ibc-rs](https://github.com/cosmos/ibc-rs) | Protocol team |
| [5](spec/core/ics-005-port-allocation/README.md) | Port Allocation | Candidate | [ibc-go](https://github.com/cosmos/ibc-go) | Protocol team |
| [23](spec/core/ics-023-vector-commitments/README.md) | Vector Commitments | Candidate | [ibc-go](https://github.com/cosmos/ibc-go), [ibc-rs](https://github.com/cosmos/ibc-rs) | Protocol team |
| [24](spec/core/ics-024-host-requirements/README.md) | Host Requirements | Candidate | [ibc-go](https://github.com/cosmos/ibc-go), [ibc-rs](https://github.com/cosmos/ibc-rs) | Protocol team |
| [25](spec/core/ics-025-handler-interface/README.md) | Handler Interface | Candidate | [ibc-go](https://github.com/cosmos/ibc-go), [ibc-rs](https://github.com/cosmos/ibc-rs) | Protocol team |
| [26](spec/core/ics-026-routing-module/README.md) | Routing Module | Candidate | [ibc-go](https://github.com/cosmos/ibc-go), [ibc-rs](https://github.com/cosmos/ibc-rs) | Protocol team |
| [33](spec/core/ics-033-multi-hop/README.md) | Multi-hop Messaging | Candidate | [ibc-go](https://github.com/cosmos/ibc-go) | Protocol team |### Light Clients
| Interchain Standard Number | Standard Title | Stage | Implementations | Maintainer |
| --------------------------------------------------------------- | -------------------------- | ----- | --------------- | ------------- |
| [6](spec/client/ics-006-solo-machine-client/README.md) | Solo Machine Client | Candidate | [ibc-go](https://github.com/cosmos/ibc-go/tree/main/modules/light-clients/06-solomachine) | Protocol team |
| [7](spec/client/ics-007-tendermint-client/README.md) | Tendermint Client | Candidate | [ibc-go](https://github.com/cosmos/ibc-go/tree/main/modules/light-clients/07-tendermint), [ibc-rs](https://github.com/cosmos/ibc-rs/tree/main/ibc-clients/ics07-tendermint) | Protocol team |
| [8](spec/client/ics-008-wasm-client/README.md) | Wasm Client | Candidate | [ibc-go](https://github.com/cosmos/ibc-go/tree/main/modules/light-clients/08-wasm), [ibc-rs](https://github.com/cosmos/ibc-rs/tree/main/ibc-clients/ics08-wasm) | Protocol team / [Composable Finance](https://www.composable.finance) |
| [9](spec/client/ics-009-loopback-cilent/README.md) | Loopback Client | Draft | [ibc-go](https://github.com/cosmos/ibc-go/tree/main/modules/light-clients/09-localhost) | Protocol team |
| [10](spec/client/ics-010-grandpa-client/README.md) | GRANDPA Client | Draft | | [Octopus Network](https://oct.network) |### Relayer
| Interchain Standard Number | Standard Title | Stage | Implementations | Maintainer |
| ---------------------------------------------------------------- | -------------------------- | ----- | --------------- | ------------- |
| [18](spec/relayer/ics-018-relayer-algorithms/README.md) | Relayer Algorithms | Finalized | [go-relayer](https://github.com/cosmos/relayer), [rust-relayer](https://github.com/informalsystems/hermes), [ts-relayer](https://github.com/confio/ts-relayer) | Protocol team |### App
| Interchain Standard Number | Version | Standard Title | Stage | Implementations | Maintainer |
| -------------------------------------------------------- | ------- | ----------------------- | --------- | ------------------------------------------------------------------------------------------------------------------------- | ------------------ |
| [20](spec/app/ics-020-fungible-token-transfer/README.md) | v2 | Fungible Token Transfer | Candidate | [ibc-go](https://github.com/cosmos/ibc-go/tree/ics20-v2-beta.0/modules/apps/transfer) | Protocol team |
| [20](spec/app/ics-020-fungible-token-transfer/v1/README.md) | v1 | Fungible Token Transfer | Candidate | [ibc-go](https://github.com/cosmos/ibc-go/tree/main/modules/apps/transfer), [ibc-rs](https://github.com/cosmos/ibc-rs/tree/main/ibc-apps/ics20-transfer) | Protocol team |
| [27](spec/app/ics-027-interchain-accounts/README.md) | v1 | Interchain Accounts | Candidate | [ibc-go](https://github.com/cosmos/ibc-go/tree/main/modules/apps/27-interchain-accounts) | Protocol team |
| [28](spec/app/ics-028-cross-chain-validation/README.md) | v1 | Cross-Chain Validation | Candidate | [interchain-security](https://github.com/cosmos/interchain-security/tree/main) | Cosmos Hub team |
| [29](spec/app/ics-029-fee-payment) | v1 | General Relayer Incentivization Mechanism | Candidate | [ibc-go](https://github.com/cosmos/ibc-go/tree/main/modules/apps/29-fee) | Protocol team |
| [30](spec/app/ics-030-middleware) | v1 | IBC Application Middleware | N/A | N/A | Protocol team |
| [31](spec/app/ics-031-crosschain-queries) | v1 | Cross-Chain Queries | Draft | N/A | Protocol team |
| [32](https://github.com/strangelove-ventures/async-icq) | v1 | Interchain Queries | Candidate | [async-icq](https://github.com/strangelove-ventures/async-icq) | [Strangelove Ventures](https://strange.love) |
| [100](spec/app/ics-100-atomic-swap) | v1 | Interchain Atomic Swap | Candidate | [ibcswap](https://github.com/ibcswap/ibcswap) | [Side Labs](https://side.one) |
| [721](spec/app/ics-721-nft-transfer) | v1 | Non-Fungible Token Transfer | Candidate | [nft-transfer](https://github.com/bianjieai/nft-transfer) | [IRIS Network](https://www.irisnet.org) |## Translations
The Interchain Standards are also translated into the following languages:
- [Chinese](https://github.com/octopus-network/ibc-spec-cn)