- Data completeness
- 100%
- Confidence
- 94%
- Sources
- 6
- Last reviewed
- 7 Jun 2025
The take
What to know
Commonware is open-source, modular Rust blockchain infrastructure — an 'anti-framework' of reusable primitives built around the Simplex BFT consensus protocol. Within the Tempo ecosystem it operates at the infrastructure layer: Tempo uses Commonware's Simplex consensus for fast sub-second BFT finality, and is both a core contributor to and the lead investor (a $25M strategic round) in the project.
Best for
- +Teams evaluating or researching Tempo's BFT consensus and finality stack
- +Developers seeking modular Rust blockchain primitives rather than a full framework
- +Low-level consensus and infrastructure work rather than consumer-facing apps
Watch out
- It is low-level consensus infrastructure and a library — not a consumer app, RPC endpoint, explorer, wallet, bridge, or oracle.
- Its public footprint is open-source Rust primitives, so adopting it means integrating library components rather than consuming a turnkey service.
The record
Key facts
- Founder
- Patrick O'Grady is the founder of Commonware.· 95%
- What it is
- Open-source, modular Rust blockchain infrastructure — a developer 'anti-framework' of reusable primitives spanning consensus, networking, storage, cryptography, and runtime.· 95%
- Consensus protocol
- Commonware's consensus is built on Simplex (Simplex BFT / Simplex Consensus), a fast Byzantine-fault-tolerant agreement protocol.· 97%
- Main repository
- The public codebase is the commonwarexyz/monorepo GitHub repository of Commonware Library primitives and examples.· 88%
- Role on Tempo
- Tempo uses Commonware's Simplex consensus to achieve fast, sub-second BFT finality.· 96%
- Tempo relationship
- Tempo builds with the Commonware Library, is a core contributor, and led Commonware's $25M strategic investment round (announced November 2025).· 95%
The timeline
History
2024-12
$9M seed round
Commonware raised a $9M seed round co-led by Haun Ventures and Dragonfly Capital.
2025-11
Tempo collaboration and $25M strategic investment
Tempo led a $25M strategic round into Commonware and began building with the Commonware Library as a core contributor.
Questions
FAQ
- What is Commonware?
- Open-source, modular Rust blockchain infrastructure — an 'anti-framework' of reusable primitives (consensus, networking, storage, cryptography, runtime) built around the Simplex BFT consensus protocol. Its public codebase is the commonwarexyz/monorepo repository.
- What is Commonware's role in the Tempo ecosystem?
- Tempo uses Commonware's Simplex consensus for fast, sub-second BFT finality. Tempo is also a core contributor to Commonware and led its $25M strategic investment round.
- Who founded Commonware?
- Patrick O'Grady founded Commonware.
- Is Commonware a standalone blockchain, RPC, or explorer for Tempo?
- No. It is consensus and library infrastructure — modular Rust primitives developers use to build chains like Tempo — not a standalone blockchain, RPC endpoint, explorer, wallet, bridge, or oracle.
The graph