AiServiceInterface when your TYPO3 extension needs AI completions, streaming, or embeddings through T3AF. Do not call provider adapters, provider repositories, or vendor SDKs directly from feature code.
Purpose
T3AF acts as the shared AI gateway for child extensions such as AI Assistant, AI Search, AI Chatbot, AI Accessibility, and custom agency extensions. The child extension prepares the prompt, context, and feature metadata. T3AF resolves the provider, executes the request, and records usage attribution.Request lifecycle
- Your extension builds the prompt and context.
- Your service calls
AiServiceInterface. - T3AF resolves the requested provider or the default provider.
- The matching adapter performs the completion, stream, or embedding request.
- Request metadata is logged for usage, analytics, and troubleshooting.
Dependency injection
Inject the interface into your own service.Minimal working example
PassAiOptions with stable feature metadata. This makes logs and usage analytics useful.
What to put in AiOptions
extensionKey
TYPO3 extension key that initiated the request.
featureKey
Stable machine key for the feature. Keep it unchanged across releases.
featureLabel
Human-readable label for logs and dashboards.
requestSource
Source of the request, such as backend_module, scheduler, or cli.
contentEntityType and contentEntityUid
Optional record context used for drilldown and troubleshooting.
Best practices
- Use
AiServiceInterfaceas the only runtime AI integration surface. - Keep
featureKeystable so analytics history remains meaningful. - Treat AI output as untrusted content before rendering or saving it.
- Do not log API keys, provider secrets, or sensitive prompt payloads.
- Handle provider failures and empty responses in your feature code.
- For CLI or Scheduler usage, configure an absolute TYPO3 site base URL when required by your environment.
Troubleshooting
No provider is resolved- Confirm a provider is connected in T3AF > AI Providers.
- Confirm your feature-level provider override, if used, points to an enabled provider.
- Confirm
extensionKeyandfeatureKeyare set inAiOptions. - Check AI Usage & Logs.