LangChain (Python) with idapt
ChatOpenAI with base_url pointed at idapt: every catalog model behind one key.
Last reviewed 2026-07-17
Install
bash
pip install langchain-openaiPoint it at idapt
python
from langchain_openai import ChatOpenAI
model = ChatOpenAI(
model="anthropic/claude-sonnet-5",
api_key=os.environ["IDAPT_API_KEY"],
base_url="https://idapt.app/api/openai/v1",
)Pitfalls
base_url, not openai_api_base
Recent langchain-openai versions take base_url directly; the legacy openai_api_base kwarg still works but is deprecated.