Content
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<img src="assets/images/logos/logo_dark.svg" width="200px" alt="vLLora Logo">
#### Lightweight, Real-time Debugging for AI Agents
Debug your Agents in Real Time. Trace, analyze, and optimize instantly. Seamless with LangChain, Google ADK, OpenAI, and all major frameworks.
**[Documentation](https://vllora.dev/docs)** | **[Issues](https://github.com/vllora/vllora/issues)**
</div>
## Quick Start
First, install [Homebrew](https://brew.sh) if you haven't already, then:
```bash
brew tap vllora/vllora
brew install vllora
```
### Start the vLLora:
```bash
vllora
```
> The server will start on `http://localhost:9090` and the UI will be available at `http://localhost:9091`.
vLLora uses OpenAI-compatible chat completions API, so when your AI agents make calls through vLLora, it automatically collects traces and debugging information for every
interaction.
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</div>
### Test Send your First Request
1. **Configure API Keys**: Visit `http://localhost:9091` to configure your AI provider API keys through the UI
2. **Make a request** to see debugging in action:
```bash
curl http://localhost:9090/v1/chat/completions \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-4o-mini",
"messages": [{"role": "user", "content": "What is the capital of France?"}]
}'
```
### Rust streaming example (OpenAI-compatible)
In `llm/examples/openai_stream_basic/src/main.rs` you can find a minimal Rust example that:
- **Builds an OpenAI-style request** using `CreateChatCompletionRequestArgs` with:
- `model("gpt-4.1-mini")`
- a **system message**: `"You are a helpful assistant."`
- a **user message**: `"Stream numbers 1 to 20 in separate lines."`
- **Constructs a `VlloraLLMClient`** and configures credentials via:
```bash
export VLLORA_OPENAI_API_KEY="your-openai-compatible-key"
```
Inside the example, the client is created roughly as:
```rust
let client = VlloraLLMClient::new()
.with_credentials(Credentials::ApiKey(ApiKeyCredentials {
api_key: std::env::var("VLLORA_OPENAI_API_KEY")
.expect("VLLORA_OPENAI_API_KEY must be set")
}));
```
Then it **streams the completion** using the original OpenAI-style request:
```rust
let mut stream = client
.completions()
.create_stream(openai_req)
.await?;
while let Some(chunk) = stream.next().await {
let chunk = chunk?;
for choice in chunk.choices {
if let Some(delta) = choice.delta.content {
print!("{delta}");
}
}
}
```
This will print the streamed response chunks (in this example, numbers 1 to 20) to stdout as they arrive.
## Features
**Real-time Tracing** - Monitor AI agent interactions as they happen with live observability of calls, tool interactions, and agent workflow. See exactly what your agents are doing in real-time.
**MCP Support** - Full support for Model Context Protocol (MCP) servers, enabling seamless integration with external tools by connecting with MCP Servers through HTTP and SSE
## Development
To get started with development:
1. **Clone the repository**:
```bash
git clone https://github.com/vllora/vllora.git
cd vLLora
cargo build --release
```
The binary will be available at `target/release/vlora`.
2. **Run tests**:
```bash
cargo test
```
## Contributing
We welcome contributions! Please check out our [Contributing Guide](CONTRIBUTING.md) for guidelines on:
- How to submit issues
- How to submit pull requests
- Code style conventions
- Development workflow
- Testing requirements
Have a bug report or feature request? Check out our [Issues](https://github.com/vllora/vllora/issues) to see what's being worked on or to report a new issue.
## Roadmap
Check out our [Roadmap](https://vllora.dev/docs/roadmap) to see what's coming next!
## License
vLLora is [fair-code](https://faircode.io/) distributed under the [Elastic License 2.0 (ELv2)](https://github.com/vllora/vllora/blob/main/LICENSE.md).
The inner package `llm` is distributed under the [Apache License 2.0](llm/LICENSE-APACHE).
vLLora includes [Distri](https://distri.dev/) as an optional component for AI agent functionality. Distri is distributed under the [Elastic License 2.0 (ELv2)](https://github.com/distrihub/distri/blob/main/LICENSE) and is downloaded separately at runtime. Distri is a separate project maintained by [DistriHub](https://github.com/distrihub).
- **Source Available**: Always visible vLLora source code
- **Self-Hostable**: Deploy vLLora anywhere you need
- **Extensible**: Add your own providers, tools, MCP servers, and custom functionality
For Enterprise License, contact us at [hello@vllora.dev](mailto:hello@vllora.dev).
Additional information about the license model can be found in the docs.
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