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Installation

LPGCast needs Python 3.11 or later and graflo 1.17 or later.

uv add lpgcast        # or: pip install lpgcast

To work on LPGCast or run the examples, install from a clone:

git clone https://github.com/growgraph/LPGCast
cd LPGCast
uv sync --group dev

What it installs

Six runtime dependencies and nothing else: graflo, openai, pydantic, pydantic-settings, click and pyyaml. There is no LangChain, no encoder and no vector store; a test keeps it that way.

Command What it is
lpgcast (alias text2lpg) sheet, select and cast; see Command line
lpgcast-bench the benchmark

Pointing it at a model

Any OpenAI-compatible endpoint: OpenAI itself, Ollama's /v1, vLLM. Settings come from environment variables only; no file is read.

export LPGCAST_LLM_API_KEY=sk-...
# LPGCAST_LLM_MODEL defaults to gpt-5.6-luna

export LPGCAST_LLM_BASE_URL=http://localhost:11434/v1
export LPGCAST_LLM_MODEL=qwen3:8b
export LPGCAST_LLM_API_KEY=local   # any value; without a key only cached replies are served

export LPGCAST_LLM_BASE_URL=http://localhost:8000/v1
export LPGCAST_LLM_MODEL=<served model name>
export LPGCAST_LLM_API_KEY=local

Without an API key LPGCast makes no request at all, and serves only replies it has cached. Every setting is listed in Settings.