Bring-Your-Own API Keys
Connect your own API keys for supported model providers (OpenAI, Anthropic, etc.)
To generate a Letta API key (which you use to interact with your agents on Letta Cloud), visit your account settings page.
Using Your Own API Keys
Connect your own API keys for supported providers (OpenAI, Anthropic, etc.) to Letta Cloud through the models page. When you have a custom API key connected for a provider, Letta Cloud will use your key for all model requests to that provider.
Billing and Quotas
Requests made using your personal API keys do not count towards your monthly request quotas or usage-based billing. Instead, you’ll be billed directly by the provider (OpenAI, Anthropic, etc.) according to their pricing for your personal account.
Note that direct provider pricing will likely differ from Letta Cloud rates, and requests through your own API key may cost more than those made through Letta Cloud’s managed services.