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https://github.com/lmnr-ai/lmnr

Laminar - open-source all-in-one platform for engineering AI products. Traces, Evals, Datasets, Labels. YC S24.
https://github.com/lmnr-ai/lmnr

agents ai ai-observability aiops analytics developer-tools evals evaluation llm-evaluation llm-observability llm-workflow llmops monitoring observability open-source pipeline-builder rag rust-lang self-hosted

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Laminar - open-source all-in-one platform for engineering AI products. Traces, Evals, Datasets, Labels. YC S24.

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# Laminar

[Laminar](https://www.lmnr.ai) is an all-in-one open-source platform for engineering AI products. Trace, evaluate, label, and analyze LLM data.

- [x] Tracing
- [x] OpenTelemetry-based automatic tracing of common AI frameworks and SDKs (LangChain, OpenAI, Anthropic ...) with just 2 lines of code. (powered by amazing [OpenLLMetry](https://github.com/traceloop/openllmetry)).
- [x] Trace input/output, latency, cost, token count.
- [x] Function tracing with `observe` decorator/wrapper.
- [x] Image tracing.
- [ ] Audio tracing coming soon.
- [x] Evaluations
- [x] Local offline evaluations. Run from code, terminal or as part of CI/CD.
- [x] Online evaluations. Trigger hosted LLM-as-a-judge or Python script evaluators for each trace.
- [x] Labels
- [x] Simple UI for fast data labeling.
- [x] Datasets
- [x] Export production trace data to datasets.
- [x] Run evals on hosted golden datasets.
- [ ] Index dataset and retrieve semantically-similar dynamic few-shot examples to improve your prompts. Coming very soon.
- [x] Built for scale
- [x] Written in Rust 🦀
- [x] Traces are sent via gRPC, ensuring the best performance and lowest overhead.
- [x] Modern Open-Source stack
- [x] RabbitMQ for message queue, Postgres for data, Clickhouse for analytics. Qdrant for semantic similarity search and hybrid search.
- [x] Fast and beautiful dashboards for traces / evaluations / labels.
traces-2

## Documentation

Check out full documentation here [docs.lmnr.ai](https://docs.lmnr.ai).

## Getting started

The fastest and easiest way to get started is with our managed platform -> [lmnr.ai](https://www.lmnr.ai)

### Self-hosting with Docker compose

For a quick start, clone the repo and start the services with docker compose:
```sh
git clone https://github.com/lmnr-ai/lmnr
cd lmnr
docker compose up -d
```

This will spin up a lightweight version of the stack with Postgres, app-server, and frontend. This is good for a quickstart
or for lightweight usage. You can access the UI at http://localhost:3000 in your browser.

For production environment, we recommend using our [managed platform](https://www.lmnr.ai/projects) or `docker compose -f docker-compose-full.yml up -d`.

`docker-compose-full.yml` is heavy but it will enable all the features.

- app-server – core Rust backend
- rabbitmq – message queue for reliable trace processing
- qdrant – vector database
- semantic-search-service – gRPC service for embedding text and storing/retrieving it from qdrant
- frontend – Next.js frontend and backend
- python-executor – gRPC service with lightweight Python sandbox that can run arbitrary code.
- postgres – Postgres database for all the application data
- clickhouse – columnar OLAP database for more efficient trace and label analytics

## Contributing

For running and building Laminar locally, or to learn more about docker compose files,
follow the guide in [Contributing](/CONTRIBUTING.md).

## TS quickstart

First, [create a project](https://www.lmnr.ai/projects) and generate a project API key. Then,

```sh
npm add @lmnr-ai/lmnr
```

It will install Laminar TS SDK and all instrumentation packages (OpenAI, Anthropic, LangChain ...)

To start tracing LLM calls just add
```typescript
import { Laminar } from '@lmnr-ai/lmnr';
Laminar.initialize({ projectApiKey: process.env.LMNR_PROJECT_API_KEY });
```

To trace inputs / outputs of functions use `observe` wrapper.

```typescript
import { OpenAI } from 'openai';
import { observe } from '@lmnr-ai/lmnr';

const client = new OpenAI({ apiKey: process.env.OPENAI_API_KEY });

const poemWriter = observe({name: 'poemWriter'}, async (topic) => {
const response = await client.chat.completions.create({
model: "gpt-4o-mini",
messages: [{ role: "user", content: `write a poem about ${topic}` }],
});
return response.choices[0].message.content;
});

await poemWriter();
```

## Python quickstart

First, [create a project](https://www.lmnr.ai/projects) and generate a project API key. Then,

```sh
pip install --upgrade 'lmnr[all]'
```
It will install Laminar Python SDK and all instrumentation packages. See list of all instruments [here](https://docs.lmnr.ai/installation)

To start tracing LLM calls just add
```python
from lmnr import Laminar
Laminar.initialize(project_api_key="")
```

To trace inputs / outputs of functions use `@observe()` decorator.

```python
import os
from openai import OpenAI

from lmnr import observe, Laminar
Laminar.initialize(project_api_key="")

client = OpenAI(api_key=os.environ["OPENAI_API_KEY"])

@observe() # annotate all functions you want to trace
def poem_writer(topic):
response = client.chat.completions.create(
model="gpt-4o",
messages=[
{"role": "user", "content": f"write a poem about {topic}"},
],
)
poem = response.choices[0].message.content
return poem

if __name__ == "__main__":
print(poem_writer(topic="laminar flow"))
```

Running the code above will result in the following trace.

Screenshot 2024-10-29 at 7 52 40 PM

## Client libraries

To learn more about instrumenting your code, check out our client libraries:

![NPM Version](https://img.shields.io/npm/v/%40lmnr-ai%2Flmnr?label=lmnr&logo=npm&logoColor=CB3837)
![PyPI - Version](https://img.shields.io/pypi/v/lmnr?label=lmnr&logo=pypi&logoColor=3775A9)