# LlamaIndex with zurelay

> RAG and document agents over your own data.

Source: https://zurelay.com/docs/integrations/llamaindex

The examples use `claude-opus-5-5`. Any model ID from [the models page](https://zurelay.com/docs/models) works.

## Set it up

1. Install the OpenAI-compatible LLM: `pip install llama-index-llms-openai-like`.
2. Create `OpenAILike` with zurelay’s base URL, your key and a catalog model.
3. Set it as `Settings.llm` so every index and query engine uses it.

## Configuration

Python (`app.py`):

```python
import os
from llama_index.core import Settings
from llama_index.llms.openai_like import OpenAILike

Settings.llm = OpenAILike(
    model="claude-opus-5-5",
    api_base="https://api.zurelay.com/v1",
    api_key=os.environ["ZURELAY_API_KEY"],
    is_chat_model=True,
    is_function_calling_model=True,
    context_window=1000000,
)

print(Settings.llm.complete("Hello"))
```

[LlamaIndex’s own docs](https://developers.llamaindex.ai/python/framework-api-reference/llms/openai_like/)