Open source focus
Open Source Alternatives to Defineapi
60 open source API Platform options similar to Defineapi, 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.
Komodor63Software DevelopmentTel Aviv, Israel$67.0MOpen source
vxtwitter.com31Web DevelopmentSan Francisco, United StatesOpen source · Self-hostable
Codefresh61EnterpriseBrisbane, Australia$42.0MOpen source · Self-hostable
Appwrite58EnterpriseSan Francisco, United States$37.0MOpen source · Self-hostable
Liblab58Developer ToolsAustin, United States$42.0MOpen source · Self-hostable
Wing Cloud54EnterpriseTel Aviv, Israel$20.0MOpen source · Self-hostable
KiloClaw54Artificial IntelligenceOpen source · Self-hostable
Runhouse52EnterpriseSan Francisco, United States$4.9MOpen source
Kiro IDE44Artificial IntelligenceSan Francisco, United StatesOpen source
QUBRID30Cloud InfrastructureOpen source
fixupx.com26Web DevelopmentSan Francisco, United StatesOpen source · Self-hostable
Hycos AI15EnterpriseOpen source
TrustyGorillaFeature FlaggingOpen source
Cursor80Artificial IntelligenceSan Francisco, United States$2.9BOpen source
Postman78API DevelopmentSan Francisco, United StatesOpen source
Together AI76AI InfrastructureSan Francisco, United States$906.0MOpen source · Self-hostable
Neon72DatabaseSan Francisco, United States$1.2BOpen source
Temporal71Workflow AutomationSeattle, United States$134.0MOpen source
Qdrant70Vector DatabaseBerlin, Germany$96.5MOpen source · Self-hostable
Vercel70Web DevelopmentSan Francisco, United States$687.5MOpen source
- Supabase70DatabaseSan Francisco, United States$933.0M
Open source · Self-hostable
Netlify69Cloud ComputingSan Francisco, United States$202.1MOpen source
TestMu AI (Formerly LambdaTest)69MLOpsSan Francisco, United States$121Open source
Logz.io69EnterpriseTel Aviv, Israel$132.0MOpen source · Self-hostable
- PUPulumi66Infrastructure as CodeSeattle, United States$228.5M
Open source · Self-hostable
npm65Developer ToolsOakland, USA$10.6MOpen source · Self-hostable
Qodo64AI Coding AssistantTel Aviv, Israel$1.5MOpen source
Gitpod64Developer ToolsTübingen, Germany$28.0MOpen source · Self-hostable
ABLY63Realtime CommunicationLondon, United Kingdom$88.0MOpen source
RadixArk62Artificial IntelligencePalo Alto, USA$20.0MOpen source
Groundcover62ObservabilityTel Aviv, Israel$155.0MOpen source
Spacelift61Infrastructure as CodeWarsaw, Poland$73.6MOpen source
Applitools61EnterpriseSan Mateo, United States$41.5MOpen source
Qovery60Developer ToolsParis, France$18.0MOpen source
flox58EnterpriseSan Francisco, United States$42.6MOpen source
Steel.dev58Developer ToolsTel Aviv, Israel$17.0MOpen source · Self-hostable
BrowserStack58Software TestingMumbai, IndiaOpen source
Dash058ObservabilitySan Francisco, United States$147.2MOpen source
FriendliAI57AI InfrastructureRedwood City, United States$89.0MOpen source
Baseten57MLOpsSan Francisco, United States$2.3BOpen source
Blaxel56Agentic AISan Francisco, United States$14.6MOpen source
Salto56DevOpsTel Aviv, Israel$69.0MOpen source
Paperspace55AI InfrastructureNew York, United States$166.5MOpen source
Robusta Dev55DevelopmentTel Aviv, IsraelOpen source · Self-hostable
Bluebricks55EnterpriseSan Francisco, United States$4.5MOpen source
LightningAI55AI InfrastructureSan Francisco, United StatesOpen source
Metoro55Software DevelopmentSan Fransisco, USOpen source
- HYHyphen AI54AI InfrastructureSeattle, United States$36.5M
Open source
BreezoMeter54Weather$42.9MOpen source
MetalBear54Software DevelopmentSan Francisco, United States$12.5MOpen source · Self-hostable
Lambdatest India Private Limited54MLOpsSan Francisco, United StatesOpen source
WireMock54Enterprise$6.5MOpen source · Self-hostable
MosaicML (now Databricks)54Foundation ModelSan Francisco, United States$3.0BOpen source
D-Wave51Quantum ComputingBurnaby, CanadaOpen source
- COCodeSandbox51Developer ToolsAmsterdam, Netherlands$15.2M
Open source
Estuary51Data StreamingSan Francisco, United States$28.0MOpen source
Agora.io50Real-Time EngagementSanta Clara, United States$706.0MOpen source
All-Hands AI50Agentic AIBoston, United States$5.0MOpen source · Self-hostable
Heroku50EnterpriseSan Francisco, United StatesOpen source
Runpod50AI InfrastructureNew York, United StatesOpen source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| Komodor | Software Development | Open source | Tel Aviv, Israel | $67.0M | 63 | |
| vxtwitter.com | Web Development | Open source · Self-hostable | San Francisco, United States | — | 31 | |
| Codefresh | Enterprise | Open source · Self-hostable | Brisbane, Australia | $42.0M | 61 | |
| Appwrite | Enterprise | Open source · Self-hostable | San Francisco, United States | $37.0M | 58 | |
| Liblab | Developer Tools | Open source · Self-hostable | Austin, United States | $42.0M | 58 | |
| Wing Cloud | Enterprise | Open source · Self-hostable | Tel Aviv, Israel | $20.0M | 54 | |
| KiloClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 54 | |
| Runhouse | Enterprise | Open source | San Francisco, United States | $4.9M | 52 | |
| Kiro IDE | Artificial Intelligence | Open source | San Francisco, United States | — | 44 | |
| QUBRID | Cloud Infrastructure | Open source | — | — | 30 | |
| fixupx.com | Web Development | Open source · Self-hostable | San Francisco, United States | — | 26 | |
| Hycos AI | Enterprise | Open source | — | — | 15 | |
| TrustyGorilla | Feature Flagging | Open source | — | — | — | |
| Cursor | Artificial Intelligence | Open source | San Francisco, United States | $2.9B | 80 | |
| Postman | API Development | Open source | San Francisco, United States | — | 78 | |
| Together AI | AI Infrastructure | Open source · Self-hostable | San Francisco, United States | $906.0M | 76 | |
| Neon | Database | Open source | San Francisco, United States | $1.2B | 72 | |
| Temporal | Workflow Automation | Open source | Seattle, United States | $134.0M | 71 | |
| Qdrant | Vector Database | Open source · Self-hostable | Berlin, Germany | $96.5M | 70 | |
| Vercel | Web Development | Open source | San Francisco, United States | $687.5M | 70 | |
| Database | Open source · Self-hostable | San Francisco, United States | $933.0M | 70 | ||
| Netlify | Cloud Computing | Open source | San Francisco, United States | $202.1M | 69 | |
| TestMu AI (Formerly LambdaTest) | MLOps | Open source | San Francisco, United States | $121 | 69 | |
| Logz.io | Enterprise | Open source · Self-hostable | Tel Aviv, Israel | $132.0M | 69 | |
| PUPulumi | Infrastructure as Code | Open source · Self-hostable | Seattle, United States | $228.5M | 66 | |
| npm | Developer Tools | Open source · Self-hostable | Oakland, USA | $10.6M | 65 | |
| Qodo | AI Coding Assistant | Open source | Tel Aviv, Israel | $1.5M | 64 | |
| Gitpod | Developer Tools | Open source · Self-hostable | Tübingen, Germany | $28.0M | 64 | |
| ABLY | Realtime Communication | Open source | London, United Kingdom | $88.0M | 63 | |
| RadixArk | Artificial Intelligence | Open source | Palo Alto, USA | $20.0M | 62 | |
| Groundcover | Observability | Open source | Tel Aviv, Israel | $155.0M | 62 | |
| Spacelift | Infrastructure as Code | Open source | Warsaw, Poland | $73.6M | 61 | |
| Applitools | Enterprise | Open source | San Mateo, United States | $41.5M | 61 | |
| Qovery | Developer Tools | Open source | Paris, France | $18.0M | 60 | |
| flox | Enterprise | Open source | San Francisco, United States | $42.6M | 58 | |
| Steel.dev | Developer Tools | Open source · Self-hostable | Tel Aviv, Israel | $17.0M | 58 | |
| BrowserStack | Software Testing | Open source | Mumbai, India | — | 58 | |
| Dash0 | Observability | Open source | San Francisco, United States | $147.2M | 58 | |
| FriendliAI | AI Infrastructure | Open source | Redwood City, United States | $89.0M | 57 | |
| Baseten | MLOps | Open source | San Francisco, United States | $2.3B | 57 | |
| Blaxel | Agentic AI | Open source | San Francisco, United States | $14.6M | 56 | |
| Salto | DevOps | Open source | Tel Aviv, Israel | $69.0M | 56 | |
| Paperspace | AI Infrastructure | Open source | New York, United States | $166.5M | 55 | |
| Robusta Dev | Development | Open source · Self-hostable | Tel Aviv, Israel | — | 55 | |
| Bluebricks | Enterprise | Open source | San Francisco, United States | $4.5M | 55 | |
| LightningAI | AI Infrastructure | Open source | San Francisco, United States | — | 55 | |
| Metoro | Software Development | Open source | San Fransisco, US | — | 55 | |
| HYHyphen AI | AI Infrastructure | Open source | Seattle, United States | $36.5M | 54 | |
| BreezoMeter | Weather | Open source | — | $42.9M | 54 | |
| MetalBear | Software Development | Open source · Self-hostable | San Francisco, United States | $12.5M | 54 | |
| Lambdatest India Private Limited | MLOps | Open source | San Francisco, United States | — | 54 | |
| WireMock | Enterprise | Open source · Self-hostable | — | $6.5M | 54 | |
| MosaicML (now Databricks) | Foundation Model | Open source | San Francisco, United States | $3.0B | 54 | |
| D-Wave | Quantum Computing | Open source | Burnaby, Canada | — | 51 | |
| COCodeSandbox | Developer Tools | Open source | Amsterdam, Netherlands | $15.2M | 51 | |
| Estuary | Data Streaming | Open source | San Francisco, United States | $28.0M | 51 | |
| Agora.io | Real-Time Engagement | Open source | Santa Clara, United States | $706.0M | 50 | |
| All-Hands AI | Agentic AI | Open source · Self-hostable | Boston, United States | $5.0M | 50 | |
| Heroku | Enterprise | Open source | San Francisco, United States | — | 50 | |
| Runpod | AI Infrastructure | Open source | New York, United States | — | 50 |