Phoenix API Upload Error: '401 Unauthorized' Issue解決策

·Jul 22, 2025 07:55 PM

Really quick question (might be dumb), created a new phoenix account and trying to upload dataset (phoenix v11.7.0), but getting HTTPStatusError: Client error '401 Unauthorized' for url 'https://app.phoenix.arize.com/v1/datasets/upload?sync=true' Here is code:

import os import dotenv dotenv.load_dotenv() PHOENIX_API_KEY = os.getenv("PHOENIX_API_KEY") os.environ["PHOENIX_CLIENT_HEADERS"] = f"api_key={PHOENIX_API_KEY}" os.environ["PHOENIX_COLLECTOR_ENDPOINT"] = "https://app.phoenix.arize.com" phoenix_client = px.Client() dataset = phoenix_client.upload_dataset( dataframe=golden_dataset, dataset_description="Golden dataset for sigma rules", dataset_name="rule-golden-v2", input_keys=["prompt"], output_keys=["valid_rule"], metadata_keys=["entity_type", "threat_intelligence_url_or_text", "log_source"] )

I am getting the key from here:

6 comments

· Sorted by Oldest

RunLLM
APP
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A 401 Unauthorized error when uploading a dataset to Phoenix Cloud usually means your API key is missing, invalid, or not being sent correctly. Make sure you set the PHOENIX_API_KEY environment variable and pass it directly to the px.Client, or ensure your environment variables are loaded before client initialization. The API key should be set as PHOENIX_API_KEY, and you do not need to set PHOENIX_CLIENT_HEADERS manually—Phoenix will read PHOENIX_API_KEY and handle the header for you. Example: ```import os import phoenix as pxos.environ["PHOENIX_API_KEY"] = "<YOUR_API_KEY> " client = px.Client()
- Troubleshooting 401 errors
💡 Hint: Mention RunLLM in the thread for followups.
Ron C.
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Cool that works!
Ron C.
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thanks
🙌1
Ron C.
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What's weird is when you sign up with google you get legacy token that works with the headers (simple token) but when you create account with email and password it takes you to the new portal with new key structure
Ron C.
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or maybe that is just because I did this 2 weeks later
Ron C.
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Yep, that makes sense, thanks sanjana
🙌2