Learn how to use your own API keys in Cursor for OpenAI, Anthropic, Google, and Azure LLM providersCursor lets you input your own API keys for various LLM providers to send as many AI messages as you want at your own cost. When a Customer API key is used, we will use that when calling the LLM providers.To use your own API key, go to Cursor Settings > Models and enter your API keys. Then, click on the “Verify” button. Once your key is validated, your API key will be enabled.Some Cursor features like Tab Completion require specialized models and won’t work with custom API keys. Custom API keys only work for features that use standard models from providers like OpenAI, Anthropic, and Google.OpenAI’s reasoning models (o1, o1-mini, o3-mini) require special configuration and are not currently supported with custom API keys.Similar to OpenAI, you can also set your own Anthropic API key so that you will be using claude-based models at your own cost.For Google API keys, you can set your own API key so that you will be using Google models such as gemini-1.5-flash-500k at your own cost.Finally, you can also set your own Azure API key so that you will be using Azure OpenAI models at your own cost.Your API key will not be stored, but it will be sent up to our server with every request. All requests are routed through our backend where we do the final prompt building.Cursor only supports API providers that are compatible with the OpenAI API format (like OpenRouter). We do not provide support for custom local LLM setups or other API formats. If you’re having issues with a custom API setup that isn’t from our supported providers, we unfortunately cannot provide technical support. Modified at 2025-03-26 09:11:01
