ConstReadonlyEXTERNAL_MODEL_PROVIDER_TYPE_AMAZON_BEDROCK: "EXTERNAL_MODEL_PROVIDER_TYPE_AMAZON_BEDROCK"Amazon Bedrock. Auth via AWS credentials (access key + secret) or assumed role.
ReadonlyEXTERNAL_MODEL_PROVIDER_TYPE_ANTHROPIC: "EXTERNAL_MODEL_PROVIDER_TYPE_ANTHROPIC"Anthropic (api.anthropic.com). Auth via API key.
ReadonlyEXTERNAL_MODEL_PROVIDER_TYPE_AZURE_OPENAI: "EXTERNAL_MODEL_PROVIDER_TYPE_AZURE_OPENAI"Azure OpenAI Service. Auth via API key or Entra ID service principal.
ReadonlyEXTERNAL_MODEL_PROVIDER_TYPE_CUSTOM: "EXTERNAL_MODEL_PROVIDER_TYPE_CUSTOM"Custom OpenAI-compatible provider (any endpoint that speaks the OpenAI HTTP API).
Configured by base_url + API key.
ReadonlyEXTERNAL_MODEL_PROVIDER_TYPE_GEMINI_ENTERPRISE: "EXTERNAL_MODEL_PROVIDER_TYPE_GEMINI_ENTERPRISE"Google Gemini Enterprise. Auth via API key.
ReadonlyEXTERNAL_MODEL_PROVIDER_TYPE_MICROSOFT_FOUNDRY: "EXTERNAL_MODEL_PROVIDER_TYPE_MICROSOFT_FOUNDRY"Microsoft AI Foundry. Auth via API key plus Foundry endpoint URL.
ReadonlyEXTERNAL_MODEL_PROVIDER_TYPE_OPENAI: "EXTERNAL_MODEL_PROVIDER_TYPE_OPENAI"OpenAI (api.openai.com). Auth via API key.
External LLM provider for an EXTERNAL_FOUNDATION_MODEL destination.