Open source focus
Open Source Alternatives to PromptChainer
60 open source Prompt Engineering options similar to PromptChainer, 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.
LangChain61Agentic AISan Francisco, United States$260.0MOpen source
LlamaIndex64Agentic AIUnited StatesOpen source
Laghav34AI InfrastructureSan Francisco, United States$1.5MOpen source
Magick AI28Agentic AIOpen source
Amadeusbio6BiotechOpen source
InstructionlabAI Tools & AppsSan Francisco, United StatesOpen source
FastclaudeAI Search EngineOpen source
OpenAI84Artificial IntelligenceSan Francisco, United States$493.9BOpen source
Together AI76AI InfrastructureSan Francisco, United States$906.0MOpen source · Self-hostable
OpenRouter70InfrastructureSan Francisco, United States$153.5MOpen source
Pinecone69AI InfrastructureSan Francisco, United States$138.0MOpen source
Dust65Agentic AIParis, France$15.0MOpen source
Lakera AI AG63AI SecurityBerlin, Germany$12.0MOpen source
Entire62Artificial Intelligence$60.0MOpen source · Self-hostable
LiteLLM62Foundation ModelSan Francisco, United StatesOpen source · Self-hostable
Composio59Agentic AISan Francisco, United States$50.0MOpen source
Modular58AI InfrastructureSan Francisco, United States$380.0MOpen source
- CLClerk56Developer ToolsSan Francisco, United States$69.0M
Open source
Auto-GPT56Agentic AI$12.0MOpen source · Self-hostable
LightningAI55AI InfrastructureSan Francisco, United StatesOpen source
Traceloop55LLMOpsTel Aviv, Israel$6.1MOpen source
MosaicML (now Databricks)54Foundation ModelSan Francisco, United States$3.0BOpen source
KiloClaw54Artificial IntelligenceOpen source · Self-hostable
Bito54AI Coding AssistantSan Francisco, United States$5.7MOpen source
Feast AI54MLOpsSan Francisco, United StatesOpen source · Self-hostable
Langfuse54MLOpsBerlin, Germany$2.5MOpen source
Ollama52Foundation ModelSan Francisco, United States$65.0MOpen source · Self-hostable
Ultravox.ai52Agentic AISan Francisco, United States$10.0MOpen source
Modal Labs52Agentic AISan Francisco, United States$693.0MOpen source
Manufact Inc.52AI InfrastructureSan Francisco, United States$6.3MOpen source
RelAI51Agentic AISan Francisco, United States$10.0MOpen source · Self-hostable
Kiro IDE44Artificial IntelligenceSan Francisco, United StatesOpen source
ScaleKit42MLOpsSan Francisco, United States$5.5MOpen source
- Litellm42LLM OrchestrationSan Francisco, United States
Open source · Self-hostable
Orq.ai41Agentic AIAmsterdam, Netherlands$8.9MOpen source
Neptune39MLOpsNew York, United States$11.0MOpen source
Briefbridge36AI Search EngineTel Aviv, Israel$1.5MOpen source
Creatstrat34Generative AITel Aviv, Israel$1.0MOpen source
QUBRID30Cloud InfrastructureOpen source
Gemini CLI27AI Tools & AppsOpen source · Self-hostable
CRAB26Agentic AIOpen source · Self-hostable
Langbase20Agentic AISan Francisco, United StatesOpen source
- BABabyAGI18Agentic AI
Open source · Self-hostable
- Merius18Foundation ModelSan Francisco, United States
Open source
Openvisio18Developer ToolsOpen source
Protoevo17Foundation ModelOpen source
- COCometAPI15API PlatformSha Tin, China
Open source
- AGAgent Pilot13Agentic AI
Open source · Self-hostable
Modelglass12AI InfrastructureSydney, AustraliaOpen source
WebWright11API PlatformOpen source
AI Planet9Agentic AIOpen source
kuafuai8Agentic AIBeijing, ChinaOpen source
Helixaai8Foundation ModelLondon, United KingdomOpen source
Agentradio7AI Coding AssistantOpen source
PrivateGPT5AI Search EngineToronto, CanadaOpen source · Self-hostable
Coworker.aiHR TechOpen source
ClauderizerAI Coding AssistantOpen source
CommitbenchAI Coding AssistantOpen source
CohartcocoGenerative AIOpen source
- Roka Dev LabsConsumer App
Open source
| Company | Sector | License | HQ | Funding | Score | Website |
|---|---|---|---|---|---|---|
| LangChain | Agentic AI | Open source | San Francisco, United States | $260.0M | 61 | |
| LlamaIndex | Agentic AI | Open source | United States | — | 64 | |
| Laghav | AI Infrastructure | Open source | San Francisco, United States | $1.5M | 34 | |
| Magick AI | Agentic AI | Open source | — | — | 28 | |
| Amadeusbio | Biotech | Open source | — | — | 6 | |
| Instructionlab | AI Tools & Apps | Open source | San Francisco, United States | — | — | |
| Fastclaude | AI Search Engine | Open source | — | — | — | |
| OpenAI | Artificial Intelligence | Open source | San Francisco, United States | $493.9B | 84 | |
| Together AI | AI Infrastructure | Open source · Self-hostable | San Francisco, United States | $906.0M | 76 | |
| OpenRouter | Infrastructure | Open source | San Francisco, United States | $153.5M | 70 | |
| Pinecone | AI Infrastructure | Open source | San Francisco, United States | $138.0M | 69 | |
| Dust | Agentic AI | Open source | Paris, France | $15.0M | 65 | |
| Lakera AI AG | AI Security | Open source | Berlin, Germany | $12.0M | 63 | |
| Entire | Artificial Intelligence | Open source · Self-hostable | — | $60.0M | 62 | |
| LiteLLM | Foundation Model | Open source · Self-hostable | San Francisco, United States | — | 62 | |
| Composio | Agentic AI | Open source | San Francisco, United States | $50.0M | 59 | |
| Modular | AI Infrastructure | Open source | San Francisco, United States | $380.0M | 58 | |
| CLClerk | Developer Tools | Open source | San Francisco, United States | $69.0M | 56 | |
| Auto-GPT | Agentic AI | Open source · Self-hostable | — | $12.0M | 56 | |
| LightningAI | AI Infrastructure | Open source | San Francisco, United States | — | 55 | |
| Traceloop | LLMOps | Open source | Tel Aviv, Israel | $6.1M | 55 | |
| MosaicML (now Databricks) | Foundation Model | Open source | San Francisco, United States | $3.0B | 54 | |
| KiloClaw | Artificial Intelligence | Open source · Self-hostable | — | — | 54 | |
| Bito | AI Coding Assistant | Open source | San Francisco, United States | $5.7M | 54 | |
| Feast AI | MLOps | Open source · Self-hostable | San Francisco, United States | — | 54 | |
| Langfuse | MLOps | Open source | Berlin, Germany | $2.5M | 54 | |
| Ollama | Foundation Model | Open source · Self-hostable | San Francisco, United States | $65.0M | 52 | |
| Ultravox.ai | Agentic AI | Open source | San Francisco, United States | $10.0M | 52 | |
| Modal Labs | Agentic AI | Open source | San Francisco, United States | $693.0M | 52 | |
| Manufact Inc. | AI Infrastructure | Open source | San Francisco, United States | $6.3M | 52 | |
| RelAI | Agentic AI | Open source · Self-hostable | San Francisco, United States | $10.0M | 51 | |
| Kiro IDE | Artificial Intelligence | Open source | San Francisco, United States | — | 44 | |
| ScaleKit | MLOps | Open source | San Francisco, United States | $5.5M | 42 | |
| LLM Orchestration | Open source · Self-hostable | San Francisco, United States | — | 42 | ||
| Orq.ai | Agentic AI | Open source | Amsterdam, Netherlands | $8.9M | 41 | |
| Neptune | MLOps | Open source | New York, United States | $11.0M | 39 | |
| Briefbridge | AI Search Engine | Open source | Tel Aviv, Israel | $1.5M | 36 | |
| Creatstrat | Generative AI | Open source | Tel Aviv, Israel | $1.0M | 34 | |
| QUBRID | Cloud Infrastructure | Open source | — | — | 30 | |
| Gemini CLI | AI Tools & Apps | Open source · Self-hostable | — | — | 27 | |
| CRAB | Agentic AI | Open source · Self-hostable | — | — | 26 | |
| Langbase | Agentic AI | Open source | San Francisco, United States | — | 20 | |
| BABabyAGI | Agentic AI | Open source · Self-hostable | — | — | 18 | |
| Foundation Model | Open source | San Francisco, United States | — | 18 | ||
| Openvisio | Developer Tools | Open source | — | — | 18 | |
| Protoevo | Foundation Model | Open source | — | — | 17 | |
| COCometAPI | API Platform | Open source | Sha Tin, China | — | 15 | |
| AGAgent Pilot | Agentic AI | Open source · Self-hostable | — | — | 13 | |
| Modelglass | AI Infrastructure | Open source | Sydney, Australia | — | 12 | |
| WebWright | API Platform | Open source | — | — | 11 | |
| AI Planet | Agentic AI | Open source | — | — | 9 | |
| kuafuai | Agentic AI | Open source | Beijing, China | — | 8 | |
| Helixaai | Foundation Model | Open source | London, United Kingdom | — | 8 | |
| Agentradio | AI Coding Assistant | Open source | — | — | 7 | |
| PrivateGPT | AI Search Engine | Open source · Self-hostable | Toronto, Canada | — | 5 | |
| Coworker.ai | HR Tech | Open source | — | — | — | |
| Clauderizer | AI Coding Assistant | Open source | — | — | — | |
| Commitbench | AI Coding Assistant | Open source | — | — | — | |
| Cohartcoco | Generative AI | Open source | — | — | — | |
| Consumer App | Open source | — | — | — |