What Happened to Mastercoin?
Short answer: Mastercoin was renamed to Omni Layer in March 2015. The protocol is still live on Bitcoin. The MSC token became OMNI. Nothing on-chain was lost — only the name changed.
Mastercoin → Omni Layer
Before March 2015
- • Protocol name: Mastercoin
- • Token ticker: MSC
- • Foundation: Mastercoin Foundation
- • Reference client: Mastercoin-Tools
After March 2015
- • Protocol name: Omni Layer
- • Token ticker: OMNI (property ID #1)
- • Foundation: Omni Foundation
- • Reference client: Omni Core / OmniCore
What did NOT change
Token IDs, on-chain history, consensus rules, the original Exodus Address, and every Mastercoin-era balance all remain intact on the Bitcoin blockchain. The 2015 rebrand was administrative — no fork, no migration, no token swap. If you held MSC in 2014, you hold OMNI today at the same address with the same private key.
Current status (2026)
The protocol is operational. The OmniCore wallet v0.13.0 ships in 2026 as the rebuilt reference client. OMNI, MaidSafeCoin (MAID), and other historical tokens remain transferable on Bitcoin via the Omni Layer protocol.
In September 2025, Tether ended USDT issuance on Omni Layer. This reduced commercial volume but did not affect the protocol's technical operation or any non-USDT tokens.
For ongoing protocol coverage and ecosystem updates, see the latest Omni Coin news and development activity. New to Bitcoin-based tokens? Start with Bitcoin tokens explained.
Looking for the full origin story?
The complete history — J.R. Willett's 2012 whitepaper, the August 2013 crowdsale of approximately 563 BTC at 100 MSC per BTC, the Exodus Address, and the road to Omni Layer — is documented on the About page.
Read the full history on About OmniCoreFAQ
What happened to Mastercoin?
Mastercoin was rebranded to Omni Layer in March 2015. The Mastercoin Foundation became the Omni Foundation, and the reference client became Omni Core. The protocol itself continues to operate today on the Bitcoin blockchain. The MSC token was renamed to OMNI and remains property ID #1 on the Omni Layer.
Is Mastercoin dead?
No — only the name was retired. The protocol is active under its current name, Omni Layer. OmniCore v0.13.0 ships in 2026 as the rebuilt reference wallet. Tokens issued under the Mastercoin/Omni name (including MaidSafeCoin) remain transferable on Bitcoin.
What is Mastercoin called now?
The protocol is now called Omni Layer. The token is now called OMNI (formerly MSC). The reference wallet is OmniCore. The administrative entity is the Omni Foundation. All on-chain history, token IDs, and consensus rules from the Mastercoin era remain intact.
Where can I learn the full Mastercoin origin story?
Visit the About OmniCore page for the complete history: J.R. Willett's 2012 whitepaper, the August 2013 crowdsale (~563 BTC raised at 100 MSC per BTC), the Exodus Address, and the path to Omni Layer.
The protocol lives on as Omni Layer
Hold OMNI, MAID, or other historical tokens? OmniCore v0.13.0 is the official wallet.
Download OmniCore