cardano-opensource-index
To contributors: Please help me fill this out with accurate data.
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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". |
[!NOTE] Liqwid Labs makes significant OS contributions however it is a smudge against them that they do not open-source their protocol smart contracts.
Data
Full Open Source
| Project logo | Project Name | Open Source | Plutus Version | Link | Reference |
|---|---|---|---|---|---|
 |
Minswap | Yes | ? | Minswap V2 Minswap Stableswap Minswap on GitHub | V2 is fully open-source |
 |
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 |
|---|---|---|---|---|---|
 |
SundaeSwap | V3 is, V1 is not | ? | Sundae V3 on GitHub | |
 |
Indigo | Partial* V2 not OS yet | ? | Indigo on GitHub | disclosure: author of this document is building a competitor to Indigo |
 |
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. | |
|
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 | Open Source | Plutus Version | Link | Reference |
|---|---|---|---|---|---|
| Astarter | ? | ? | |||
 |
Genius Yield | ? | ? | ||
 |
FluidTokens | ? | ? |