AgentOpsAPIKeyNotSetError
agentops.exceptions.AgentOpsAPIKeyNotSetError
Stack trace
agentops.exceptions.AgentOpsAPIKeyNotSetError: API key not set. Please set the AGENTOPS_API_KEY environment variable before using the client.
File "/app/main.py", line 12, in <module>
client = AgentOpsClient()
File "/usr/local/lib/python3.9/site-packages/agentops/client.py", line 45, in __init__
raise AgentOpsAPIKeyNotSetError("API key not set. Please set the AGENTOPS_API_KEY environment variable.") Why it happens
AgentOps requires an API key to authenticate requests. This error occurs when the environment variable AGENTOPS_API_KEY is not set or is empty, so the client cannot authenticate with the AgentOps service.
Detection
Check for the presence of the AGENTOPS_API_KEY environment variable at application startup or before initializing the AgentOps client to catch this error early.
Causes & fixes
The AGENTOPS_API_KEY environment variable is not set in the runtime environment.
Set the AGENTOPS_API_KEY environment variable with your valid API key before running your application.
The environment variable is set but empty or contains only whitespace.
Ensure AGENTOPS_API_KEY is set to a non-empty string containing your actual API key.
The code initializes AgentOpsClient before environment variables are loaded (e.g., missing dotenv load).
Load environment variables properly before creating the AgentOps client, for example by calling dotenv.load_dotenv() if using python-dotenv.
Code: broken vs fixed
from agentops import AgentOpsClient
client = AgentOpsClient() # This line raises AgentOpsAPIKeyNotSetError because API key is missing
response = client.run_agent("my-agent", input_data={})
print(response)import os
from agentops import AgentOpsClient
os.environ["AGENTOPS_API_KEY"] = os.environ.get("AGENTOPS_API_KEY", "your_actual_api_key_here") # Set your API key securely
client = AgentOpsClient() # Now initializes successfully
response = client.run_agent("my-agent", input_data={})
print(response)Workaround
Wrap the AgentOpsClient initialization in a try/except block catching AgentOpsAPIKeyNotSetError and prompt the user or fallback to a default safe mode until the key is set.
Prevention
Use environment management tools to ensure AGENTOPS_API_KEY is always set in all deployment environments and add startup checks that fail fast with clear messages if the key is missing.