Core blockchain
Explore the XCL codebase and changes addressing key calculations, including halving and difficulty.
See development →The original Project Excelsior
One Project.
One Blockchain.
One XCL.
Welcome to the official home of Project Excelsior (XCL). Follow ongoing blockchain development, explore the mobile wallet, and find trusted project resources—all in one place.
Built for continuity
The next chapter of XCL
XCL continues through practical software maintenance, core improvements, and tools designed to make the network easier to explore.
Mobile wallet
Learn about the Android wallet project, its features, and how to find the official source.
Explore wallet →Transparent network
Look up activity and blockchain data using the official XCL block explorer.
Launch explorer ↗Identity & continuity
V1 and V2 were testnets.
There is one XCL.
V1 (November 2021) and V2 (October 2022) were successive testnets, not separate XCL coins. XCL launched on April 8, 2025, following that development history.
Explore the XCL timelineClarity matters.
Only the channels identified on this website should be treated as authoritative for official project news, links, and software resources.
Project Excelsior does not endorse third-party claims of affiliation unless specifically confirmed through its official channels.
Wallet development
XCL in your pocket
The XCL Android wallet project brings mobile access to the ecosystem. Discover its current capabilities, security considerations, and the official development repository.
Wallet software may be experimental; verify release availability and protect recovery credentials before use.
Explore the mobile walletStay connected
Official resources. Direct access.
No guesswork: use these verified channels for source code, blockchain information, and updates.