cardano-opensource-index

To contributors: Please help me fill this out with accurate data.

Ethos

Important

"In the real world, you would never ask someone to sign a contract that they cant read. " - @phil_uplc twitter

Important

"This culture of making excuses for "decentralized" applications with closed-source smart contracts needs to stop.

Important

Your application is not a DApp if your smart contracts cannot be independently reviewed by the public for backdoors / master-keys. " - @phil_uplc twitter

Important

"All closed source code can have some backdoors to steal your funds" - @notjuve twitter

Dishonourable Mentions

Name	Logo	Why
Liqwid Finance		advertises as "DeFi" (decentralised finance) despite not open-sourcing their main protocol contracts.
VyFi		to my knowledge operates as DeX but has not open-sourced their main contracts.
Optim Finance		calls itself "decentralization advocates" despite not open-sourcing their main protocol contracts.
WingRiders		also closed source "DeX".
SundaeSwap		build "decentralized software" however do not meet the most basic tenet of decentralisation

Note

Sundae & Liqwid Labs both make significant OS contributions however it is a smudge against them that they do not open-source their protocol smart contracts.

Some honourable mentions

• Indigo is a fully-fledged protocol, and one of the largest which is also completely open-source.
• LenFi v1 has been open-source and has already open-sourced v2 before launch.
• Spectrum-Finance (soon to be splash) is probably the only DeX which is actually decentralised.
• Danogo is a cool project, would like to see more bonds some day.

Data

Full Open Source

Project logo	Project Name	Open Source	Plutus Version	Link	Reference
	Indigo	Yes (Full)	?	Indigo on GitHub	disclosure: author of this document is building a competitor to Indigo
	Jpgstore	Yes (Full)	?	Jpgstore Contract V2 Jpgstore Contract V3
	Lenfi	Yes (Full)	?	Lenfi on GitHub
	Cerra.io	Yes (Full)	?	Cerra.io on GitHub
	Paima Engine	Yes* (Full)	?	Paima Engine on GitHub	*Paima Engine is free for open-source projects, but has additional terms for closed-sourced commercial projects.
	Spectrum Finance	Yes (Full)	?	Spectrum Finance on GitHub
	Discovery	Yes (Full)	?	Discovery on GitHub
	MetaDEX.fi	Yes (Full)	?	MetaDEX.fi on GitHub

Partial Open Source

Project logo	Project Name	Open Source	Plutus Version	Link	Reference
	Minswap	Yes* (Partial)	?	Minswap on GitHub	V1 source is available, however when Wingriders found a vulnerability they were allegedly blackmailed and closed their source. Most recent, corrected contracts I can not find.
	MuesliSwap	Yes	?	MuesliSwap on GitHub
	CSWAP DEX	Yes*	?		* Allegedly opensource but I cannot find the repository
	Danogo	Yes*	?		* ironic that an optim-derived product is opensource but optim isn't
	Meld	Yes*	?		*opensource in spite of not being deployed. They might not have a commitment to Cardano but they have done better than every closed source project on this list.
	TeddySwap	Yes (Uses other protocol)	?
	CherryLend	Yes (Uses other protocol)	?

Closed Source

Project logo	Project Name	Open Source	Plutus Version	Link	Reference
	Liqwid	No (Governance)	?		*Liqwid has opensourced various other components but have not opensourced their main smart contracts.
	Optim Finance	No*	?		* their team in principle support OS but can't OS right now for whatever reasons
	Levvy Finance	No	?		* https://x.com/ponziratti/status/1736412671036084725?s=20 No interest in open-source.
	SundaeSwap	No	?
	VyFinance	No	?
	WingRiders	No	?
	Lending Pond	No	?
	ADAX Pro	No*	?		*project is seemingly dead
	MeoswapFi	No*	?		*project is seemingly dead

Unknown

Project logo	Project Name	Protocol Opensource	Level of OpenSource	Link	Reference
	Astarter	?	?
	Genius Yield	?	?
	FluidTokens	?	?