How do I add credentials for unsupported services like Eleven Labs and Together.ai?

It sounds like you’re encountering this issue because ElevenLabs, Together.ai, and similar services aren’t provided as predefined credential types in n8n. Predefined credentials are only available for the integrations that n8n supports out-of-the-box.

To work with these services you have two main options:

1. Use a Generic Credential Type:

   • Open the HTTP Request node (or another node that supports generic credentials).
   • Select one of the generic authentication methods (such as Basic Auth, Header Auth, or Custom Auth) that best matches the API’s requirement.
   • Configure the method with the details (API key, secret, headers, or query parameters) specified by the service.
   • Refer to the n8n documentation on HTTP Request credentials for detailed steps on how to use these methods.

2. Create a Credential-Only Entry via the HTTP Request node:

   • If you’re making a custom API call and don’t see “Generic API” in your custom node setup, it might be because n8n expects you to define the credentials via a separate credential type first.
   • In this case, you can create a new credential in the credentials section (even if it isn’t listed in the dropdown, try selecting “Create New” in an existing generic type).
   • Once created, reference that credential in your custom node using expressions if necessary.

n8n uses predefined credential types for a smoother setup process. When a service isn’t included, setting up your API connection manually using one of the generic auth options or through credential-only nodes is the recommended approach.

Double-check your node version and configuration per the HTTP Request credentials documentation and the Credentials creation guide for more guidance.