Open source focus
Open Source Alternatives to Reissue
60 open source Decentralized Identity options similar to Reissue, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.
Aemetis15Climate TechCupertino, United StatesOpen source · Self-hostable
VeritasforgeBlockchainLondon, EnglandOpen source
OpenkmsFintechOpen source
StarkWare73BlockchainTel Aviv, Israel$180.0MOpen source
ENS (Ethereum Name Service)53Web3$1.0MOpen source
Kima50BlockchainTel Aviv, Israel$6.7MOpen source
io.finnet47FintechTel Aviv, IsraelOpen source
Cred Protocol45FintechSan Francisco, United StatesOpen source
Poseidon36Decentralized IdentityTel Aviv, Israel$18.0MOpen source
- ZAzauth10CybersecurityTel Aviv, Israel
Open source
- Fed LabsDigital IdentitySan Francisco, United States
Open source
Polygon81BlockchainMumbai, India$400.0MOpen source
WorkOS71Developer ToolsSan Francisco, United States$198.0MOpen source
Teleport69CybersecurityOakland, United States$190.0MOpen source
Monad Labs62BlockchainNew York, United States$266.0MOpen source
Ownera58BlockchainTel Aviv, Israel$20.0MOpen source · Self-hostable
Near58BlockchainZug, Switzerland$1.1BOpen source
Cardano55BlockchainOpen source · Self-hostable
Tweed54FintechNew York, United States$4.0MOpen source
Olas54Agentic AIUnited Kingdom$13.8MOpen source
ConsenSys (Infura)54Web3San Francisco, United States$221.0MOpen source
- RARated Labs54Web3London, United Kingdom$2.5M
Open source
Connext54Fintech$12.0MOpen source
Fhenix53BlockchainNew York, United States$22.0MOpen source
Lunar.dev53EnterpriseTel Aviv, Israel$6.0MOpen source
The Graph53Web3San Francisco, United StatesOpen source
Filecoin53DePINSan Francisco, United States$150.0MOpen source
Monad50BlockchainNew York, United States$259.0MOpen source
Horizon Blockchain Games47FintechToronto, Canada$10.0MOpen source
Bluprynt47FintechNew York, United States$6.0MOpen source
- KEKeeta Network47BlockchainSanta Monica, United States$34.0M
Open source
Thena AI47FintechSingapore, Singapore$10.1MOpen source
Ensemble Codes46Agentic AISan Francisco, United States$1.5MOpen source
Bitfount46Data MarketplaceLondon, United Kingdom$23.6MOpen source
BlockSec45Web3Singapore, Singapore$1.0MOpen source
RedStone43Web3Warsaw, PolandOpen source
Arrakis Finance41FintechOpen source
Storj41Cloud StorageAtlanta, United States$973.0MOpen source
Hermes Protocol41Web3Open source
Slauth.io38EnterpriseAshburn, United States$1.5MOpen source · Self-hostable
- VIVirtuals Protocol38BlockchainSan Francisco, United States
Open source
Blockmesh Network31BlockchainOpen source · Self-hostable
Mirra AI28Web3Open source
Apigee25API PlatformSan Jose, United States$196.5MOpen source
Faremeter22FintechOpen source · Self-hostable
Clawpump19BlockchainOpen source
Cyberscope16CybersecurityTel Aviv, IsraelOpen source
PayAI15FintechOpen source
- ATAtoZ Labs11Blockchain
Open source · Self-hostable
- X4x402.org10EdTech
Open source
Rei Labs10Web3Singapore, SingaporeOpen source
ERC-800410BlockchainOpen source
Citcall10CybersecurityJakarta, IndonesiaOpen source
- 0X0xWork10Web3
Open source
- LOLobster.cash9Fintech
Open source
CodeNut7Web3 DevelopmentOpen source
Forgemesh6API PlatformSan Francisco, United StatesOpen source
Headless Domains0Agentic AIHong Kong, Hong KongOpen source
Obscura Ephermeral ClubAI InfrastructureOpen source
JapaneseonchainWeb3Open source
| Company | Sector | License | HQ | Funding | Score |
|---|---|---|---|---|---|
| Aemetis | Climate Tech | Open source · Self-hostable | Cupertino, United States | — | 15 |
| Veritasforge | Blockchain | Open source | London, England | — | — |
| Openkms | Fintech | Open source | — | — | — |
| StarkWare | Blockchain | Open source | Tel Aviv, Israel | $180.0M | 73 |
| ENS (Ethereum Name Service) | Web3 | Open source | — | $1.0M | 53 |
| Kima | Blockchain | Open source | Tel Aviv, Israel | $6.7M | 50 |
| io.finnet | Fintech | Open source | Tel Aviv, Israel | — | 47 |
| Cred Protocol | Fintech | Open source | San Francisco, United States | — | 45 |
| Poseidon | Decentralized Identity | Open source | Tel Aviv, Israel | $18.0M | 36 |
| ZAzauth | Cybersecurity | Open source | Tel Aviv, Israel | — | 10 |
| Digital Identity | Open source | San Francisco, United States | — | — | |
| Polygon | Blockchain | Open source | Mumbai, India | $400.0M | 81 |
| WorkOS | Developer Tools | Open source | San Francisco, United States | $198.0M | 71 |
| Teleport | Cybersecurity | Open source | Oakland, United States | $190.0M | 69 |
| Monad Labs | Blockchain | Open source | New York, United States | $266.0M | 62 |
| Ownera | Blockchain | Open source · Self-hostable | Tel Aviv, Israel | $20.0M | 58 |
| Near | Blockchain | Open source | Zug, Switzerland | $1.1B | 58 |
| Cardano | Blockchain | Open source · Self-hostable | — | — | 55 |
| Tweed | Fintech | Open source | New York, United States | $4.0M | 54 |
| Olas | Agentic AI | Open source | United Kingdom | $13.8M | 54 |
| ConsenSys (Infura) | Web3 | Open source | San Francisco, United States | $221.0M | 54 |
| RARated Labs | Web3 | Open source | London, United Kingdom | $2.5M | 54 |
| Connext | Fintech | Open source | — | $12.0M | 54 |
| Fhenix | Blockchain | Open source | New York, United States | $22.0M | 53 |
| Lunar.dev | Enterprise | Open source | Tel Aviv, Israel | $6.0M | 53 |
| The Graph | Web3 | Open source | San Francisco, United States | — | 53 |
| Filecoin | DePIN | Open source | San Francisco, United States | $150.0M | 53 |
| Monad | Blockchain | Open source | New York, United States | $259.0M | 50 |
| Horizon Blockchain Games | Fintech | Open source | Toronto, Canada | $10.0M | 47 |
| Bluprynt | Fintech | Open source | New York, United States | $6.0M | 47 |
| KEKeeta Network | Blockchain | Open source | Santa Monica, United States | $34.0M | 47 |
| Thena AI | Fintech | Open source | Singapore, Singapore | $10.1M | 47 |
| Ensemble Codes | Agentic AI | Open source | San Francisco, United States | $1.5M | 46 |
| Bitfount | Data Marketplace | Open source | London, United Kingdom | $23.6M | 46 |
| BlockSec | Web3 | Open source | Singapore, Singapore | $1.0M | 45 |
| RedStone | Web3 | Open source | Warsaw, Poland | — | 43 |
| Arrakis Finance | Fintech | Open source | — | — | 41 |
| Storj | Cloud Storage | Open source | Atlanta, United States | $973.0M | 41 |
| Hermes Protocol | Web3 | Open source | — | — | 41 |
| Slauth.io | Enterprise | Open source · Self-hostable | Ashburn, United States | $1.5M | 38 |
| VIVirtuals Protocol | Blockchain | Open source | San Francisco, United States | — | 38 |
| Blockmesh Network | Blockchain | Open source · Self-hostable | — | — | 31 |
| Mirra AI | Web3 | Open source | — | — | 28 |
| Apigee | API Platform | Open source | San Jose, United States | $196.5M | 25 |
| Faremeter | Fintech | Open source · Self-hostable | — | — | 22 |
| Clawpump | Blockchain | Open source | — | — | 19 |
| Cyberscope | Cybersecurity | Open source | Tel Aviv, Israel | — | 16 |
| PayAI | Fintech | Open source | — | — | 15 |
| ATAtoZ Labs | Blockchain | Open source · Self-hostable | — | — | 11 |
| X4x402.org | EdTech | Open source | — | — | 10 |
| Rei Labs | Web3 | Open source | Singapore, Singapore | — | 10 |
| ERC-8004 | Blockchain | Open source | — | — | 10 |
| Citcall | Cybersecurity | Open source | Jakarta, Indonesia | — | 10 |
| 0X0xWork | Web3 | Open source | — | — | 10 |
| LOLobster.cash | Fintech | Open source | — | — | 9 |
| CodeNut | Web3 Development | Open source | — | — | 7 |
| Forgemesh | API Platform | Open source | San Francisco, United States | — | 6 |
| Headless Domains | Agentic AI | Open source | Hong Kong, Hong Kong | — | 0 |
| Obscura Ephermeral Club | AI Infrastructure | Open source | — | — | — |
| Japaneseonchain | Web3 | Open source | — | — | — |