Is there a difference between a 'v2' and 'v3' API key?

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Grade: Education Subject: Support
Is there a difference between a 'v2' and 'v3' API key?
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Yes. 'v3' API keys are generally more secure and offer more granular permission controls compared to 'v2' keys. Using a 'v2' key with a 'v3' API endpoint will often result in an 'invalid key type' error, as the key isn't designed for the newer API version.