---
title: "API reference"
manual: "LLM Foundation"
version: "0.44"
permalink: "https://docs.typo3.org/permalink/netresearch/nr-llm:api-reference@0.44"
source: "Api/Index.rst"
rendered: "2026-11-12T17:35:48+00:00"
---

# API reference {#api-reference}

Reference for supported integration paths, public services and value objects.
See [API stability](https://docs.typo3.org/permalink/netresearch/nr-llm:api-stability@0.44) for the distinction between consumer interfaces and
extension points.

This `main` manual describes the development branch, including changes
not yet released after 0.43.20. Select your installed release in the version
menu. See [Release availability](https://docs.typo3.org/permalink/netresearch/nr-llm:api-availability@0.44) for the first release of selected methods.

Choose a starting point:

-   A single configured exchange: [Step 5: Select a database configuration](https://docs.typo3.org/permalink/netresearch/nr-llm:integration-guide-step5@0.44).
-   Stored lifecycle, approvals or background work: [Persisted agent runtime](https://docs.typo3.org/permalink/netresearch/nr-llm:api-agent-runtime@0.44).
-   Session memory: [Stored conversations](https://docs.typo3.org/permalink/netresearch/nr-llm:api-conversations@0.44).
-   Executable tools and availability: [Tool extension API](https://docs.typo3.org/permalink/netresearch/nr-llm:api-tool-extensions@0.44).
-   Input/output policy extensions: [Guardrail extensions](https://docs.typo3.org/permalink/netresearch/nr-llm:api-guardrails@0.44).
-   Translation, image, speech and document paths: [Specialized services](https://docs.typo3.org/permalink/netresearch/nr-llm:api-specialized-services@0.44).

-   [API stability](https://docs.typo3.org/permalink/netresearch/nr-llm:api-stability-1@0.44)
-   [Release availability](https://docs.typo3.org/permalink/netresearch/nr-llm:release-availability@0.44)
-   [Deprecation and removal policy](https://docs.typo3.org/permalink/netresearch/nr-llm:deprecation-and-removal-policy@0.44)
-   [Support matrix](https://docs.typo3.org/permalink/netresearch/nr-llm:support-matrix@0.44)
-   [LlmServiceManager](https://docs.typo3.org/permalink/netresearch/nr-llm:llmservicemanager@0.44)
-   [Persisted agent runtime](https://docs.typo3.org/permalink/netresearch/nr-llm:persisted-agent-runtime@0.44)
-   [Stored conversations](https://docs.typo3.org/permalink/netresearch/nr-llm:stored-conversations@0.44)
-   [CompletionService](https://docs.typo3.org/permalink/netresearch/nr-llm:completionservice@0.44)
-   [Decision service](https://docs.typo3.org/permalink/netresearch/nr-llm:decision-service@0.44)
-   [EmbeddingService](https://docs.typo3.org/permalink/netresearch/nr-llm:embeddingservice@0.44)
-   [VisionService](https://docs.typo3.org/permalink/netresearch/nr-llm:visionservice@0.44)
-   [DocumentAnalysisService](https://docs.typo3.org/permalink/netresearch/nr-llm:documentanalysisservice@0.44)
-   [TranslationService](https://docs.typo3.org/permalink/netresearch/nr-llm:translationservice@0.44)
    -   [Translation options](https://docs.typo3.org/permalink/netresearch/nr-llm:translation-options@0.44)
-   [An editor's budget status](https://docs.typo3.org/permalink/netresearch/nr-llm:an-editor-s-budget-status@0.44)
-   [An extension's own usage](https://docs.typo3.org/permalink/netresearch/nr-llm:an-extension-s-own-usage@0.44)
-   [ToolCallingService](https://docs.typo3.org/permalink/netresearch/nr-llm:toolcallingservice@0.44)
-   [Tool extension API](https://docs.typo3.org/permalink/netresearch/nr-llm:tool-extension-api@0.44)
-   [Guardrail extensions](https://docs.typo3.org/permalink/netresearch/nr-llm:guardrail-extensions@0.44)
-   [Provider middleware](https://docs.typo3.org/permalink/netresearch/nr-llm:provider-middleware@0.44)
-   [Specialized services](https://docs.typo3.org/permalink/netresearch/nr-llm:specialized-services@0.44)
-   [Tool invocation rules](https://docs.typo3.org/permalink/netresearch/nr-llm:tool-invocation-rules@0.44)
-   [Delegated MCP authentication](https://docs.typo3.org/permalink/netresearch/nr-llm:delegated-mcp-authentication@0.44)
-   [KeywordSearch](https://docs.typo3.org/permalink/netresearch/nr-llm:keywordsearch@0.44)
-   [ReciprocalRankFusion](https://docs.typo3.org/permalink/netresearch/nr-llm:reciprocalrankfusion@0.44)
-   [Retrieval provenance](https://docs.typo3.org/permalink/netresearch/nr-llm:retrieval-provenance@0.44)
-   [Reranker](https://docs.typo3.org/permalink/netresearch/nr-llm:reranker@0.44)
-   [Response objects](https://docs.typo3.org/permalink/netresearch/nr-llm:response-objects@0.44)
-   [Option classes](https://docs.typo3.org/permalink/netresearch/nr-llm:option-classes@0.44)
-   [Provider interface](https://docs.typo3.org/permalink/netresearch/nr-llm:provider-interface@0.44)
-   [Events](https://docs.typo3.org/permalink/netresearch/nr-llm:events@0.44)
-   [Exceptions](https://docs.typo3.org/permalink/netresearch/nr-llm:exceptions@0.44)