import os os.environ["LITELLM_LOG"] = "DEBUG" # Turn ON logging to see what's happening from litellm import completion response = completion( model="openrouter/anthropic/claude-3.5-sonnet", messages=[{"role": "user", "content": "Say 'WORKING' if you can read this"}], api_key="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", # PASTE YOUR REAL KEY extra_headers={ "HTTP-Referer": "https://agent-zero.ai", "X-Title": "Agent Zero" } ) print("✅ SUCCESS!") print(response. choices[0].message.content)