CrewAI

import os

os.environ["OPENAI_API_KEY"] = "sk-your-tokenlab-key"
os.environ["OPENAI_API_BASE"] = "https://api.tokenlab.sh/v1"
os.environ["OPENAI_MODEL_NAME"] = "claude-sonnet-5"

from crewai import Agent, LLM

llm = LLM(
    model="claude-sonnet-5",
    base_url="https://api.tokenlab.sh/v1",
    api_key="sk-your-tokenlab-key",
)

agent = Agent(
    role="Research analyst",
    goal="Summarize technical tradeoffs clearly",
    backstory="You produce concise implementation notes.",
    llm=llm,
)