Cosmos SDK

P2P Platform

A modular, open-source framework for building application-specific Layer-1 blockchains ("appchains"), pairing with the CometBFT (formerly Tendermint) BFT consensus engine. Used by 200+ chains in production, including Cosmos Hub, Osmosis, and (per this matrix) did-cheqd and ixo's Impact Hub. Cosmos Labs, the primary commercial steward of ongoing SDK development, is a wholly-owned subsidiary of the Interchain Foundation (a Swiss nonprofit).

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Details

License Apache-2.0
Dev Status 🟢 Active
Owner Cosmos Labs (development), a subsidiary of the Interchain Foundation.
Governing Body Interchain Foundation (Swiss nonprofit) — funds development, public goods, and governance support for the broader Cosmos ecosystem, though individual chains built with the SDK govern themselves independently.
Country Switzerland (Interchain Foundation)
Start Year 2019
Stack Go, pairs with CometBFT (BFT PoS consensus engine) as its default consensus layer.
Funding Interchain Foundation grants; Cosmos Labs itself is ICF-funded.
Last Investigated Aug 23, 2026

Use Case Domains

Platform Evolution & Sovereignty

P2P Platform Attributes

Origins Application-specific blockchain framework, enabling developers to build sovereign, purpose-built chains rather than deploying smart contracts on a shared chain.
Database Chain-specific — each SDK-built chain has its own state store (typically IAVL tree-backed).
Query Language gRPC/REST query endpoints, auto-generated per-module from Protobuf definitions.
Data Formats Protobuf.
Collaborative Live Editing N/A
Rich Text Editing N/A
Mobile Support N/A directly (individual chains' wallet ecosystems provide this)
Web Support N/A directly (chain-specific frontends/block explorers provide this)
Native Apps N/A (a framework, not an end-user app)
Terms Free, open-source framework; individual chains set their own transaction fee/gas models.
Funds Not centrally tracked at the SDK level (individual chains have their own treasuries).
Based On Pairs with CometBFT/Tendermint BFT consensus; IBC (this story's own separate entry) for interchain communication.
P2P Architecture Inherits CometBFT's validator-gossip P2P network for whichever chain is built with the SDK.
Development Tools Full module framework (bank, staking, gov, IBC, etc.), CLI scaffolding (ignite/formerly starport), extensive documentation and tutorials.
Deployment Options Self-hosted validator/full-node deployment (each SDK chain runs its own independent network); no managed/hosted option from Cosmos Labs itself.
Authentication & Identity Cosmos SDK accounts (secp256k1/ed25519 keypairs), with an x/auth module handling account state.
Storage Model On-chain, IAVL-tree-backed key-value store per chain.
Interoperability Native IBC support (this story's own separate entry) for cross-chain communication with any other IBC-enabled chain.
Social Graph N/A