Alternatives
Self-hosted alternatives to Vertex AI Agent Engine
Projects in the registry that can run on your own hardware and serve at least one of the same use cases as Vertex AI Agent Engine.
- Source
- Registry relations over fetched repository records — the evidence sits on each repository page
- Verified
- Evidence not verified
- Confidence
- High
01How this list was built
- Compared against
- Vertex AI Agent Engine
- Delivery
- Cloud platforms
- Shared use cases
- Agent workflow, AI customer-support agent, Department assistant, Choosing a cloud platform
- Selection rule
- open source, or self-hostable, and shares a use case
- Candidates found
- 9
02Alternatives
Dify
Hybrid — hosted or self-hosted
Platform for building LLM applications: visual workflow editor, retrieval pipelines, agent tools, prompt management and an API layer. Available self-hosted or as a managed cloud service.
- Repository
- langgenius/dify
- Stars
- 153,448
- Licence
- Other
- In stacks
- 1
Shares: Customer support agent
Flowise
Hybrid — hosted or self-hosted
Visual builder for LLM chains and agents, with retrieval nodes, tool calling and an API or embeddable chat widget for the finished flow.
- Repository
- FlowiseAI/Flowise
- Stars
- —
- Licence
- unknown
- In stacks
- 0
Shares: Customer support agent
LangChain
Frameworks
Library for composing model calls, retrieval and tools into applications, with adapters for most providers and vector stores. A building block, not a deployable product.
- Repository
- langchain-ai/langchain
- Stars
- —
- Licence
- unknown
- In stacks
- 0
Shares: Customer support agent
Langflow
Hybrid — hosted or self-hosted
Visual environment for composing LLM pipelines and agents from components, with export to a Python application or an API endpoint.
- Repository
- langflow-ai/langflow
- Stars
- —
- Licence
- unknown
- In stacks
- 0
Shares: Customer support agent
Langfuse
Hybrid — hosted or self-hosted
Tracing, evaluation and prompt management for LLM applications, self-hostable so prompts and responses can stay inside the network being audited.
- Repository
- langfuse/langfuse
- Stars
- —
- Licence
- unknown
- In stacks
- 1
Shares: Customer support agent
LangGraph
Frameworks
Graph-structured agent framework with explicit state, checkpoints and interrupts — the mechanism behind a human approval step rather than a prompt asking for one.
- Repository
- langchain-ai/langgraph
- Stars
- —
- Licence
- unknown
- In stacks
- 1
Shares: Agent workflow · Customer support agent · Department assistant
LiveKit Agents
Hybrid — hosted or self-hosted
Framework for real-time voice and video agents on LiveKit’s WebRTC infrastructure, with turn detection, interruption handling and pluggable speech and model providers.
- Repository
- livekit/agents
- Stars
- —
- Licence
- unknown
- In stacks
- 1
Shares: Customer support agent
Onyx
Hybrid — hosted or self-hosted
Open-source enterprise search and chat over company systems, with connectors to common SaaS tools, permission-aware indexing and a self-hosted deployment path.
- Repository
- onyx-dot-app/onyx
- Stars
- 31,754
- Licence
- Other
- In stacks
- 0
Shares: Customer support agent
Pipecat
Frameworks
Open-source framework for real-time voice and multimodal agents, composing speech-to-text, model and speech synthesis services into a streaming pipeline with barge-in support.
- Repository
- pipecat-ai/pipecat
- Stars
- —
- Licence
- unknown
- In stacks
- 1
Shares: Customer support agent
03Repository facts
| Repository | Stars | Health |
|---|---|---|
| langgenius/difyBuild Agentic workflows, RAG pipelines, with rich AI model and tool support on one collaborative workspace. Deploy on cloud, VPC, or self-hosted, so teams move from prototype to production without rebuilding the stack. | 153k | Maintenance 100%, Releases 60%, Contributors 50%, Issues 94%, Community 100%84 |
| FlowiseAI/Flowise | — | Health not measuredunknown |
| langchain-ai/langchain | — | Health not measuredunknown |
| langflow-ai/langflow | — | Health not measuredunknown |
| langfuse/langfuse | — | Health not measuredunknown |
| langchain-ai/langgraph | — | Health not measuredunknown |
| livekit/agents | — | Health not measuredunknown |
| onyx-dot-app/onyxOpen Source AI Platform - AI Chat with advanced features that works with every LLM | 32k | Maintenance 100%, Releases 100%, Contributors 50%, Issues 87%, Community 90%89 |
| pipecat-ai/pipecat | — | Health not measuredunknown |
04Ask about your own case
Which alternative is right depends on how many people will use it, what the data is and what you can operate. Ask and the answer is researched for your organisation.