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API support matrix

foundryR separates Microsoft Foundry endpoint families because their paths, token audiences, and compatibility guarantees differ. The package is community-maintained and does not imply Microsoft support for undocumented behavior.

Endpoint and authentication families

Family Base path Entra audience foundryR configuration
Resource v1 <resource>/openai/v1/... https://cognitiveservices.azure.com foundry_set_endpoint() plus a resource token or provider
Foundry project <account>/api/projects/<project>/... https://ai.azure.com foundry_set_project_endpoint() plus a project token or provider
Content Safety <resource>/contentsafety/... https://cognitiveservices.azure.com where the formal operation reference documents OAuth2 Content Safety endpoint plus key or supported resource token
Legacy deployment <resource>/openai/deployments/<deployment>/... https://cognitiveservices.azure.com Resource endpoint and dated api-version

Register endpoint-family providers separately:

foundry_set_token_provider(
  foundry_token_azure_cli("https://cognitiveservices.azure.com"),
  scope = "resource"
)

foundry_set_token_provider(
  foundry_token_azure_cli("https://ai.azure.com"),
  scope = "project"
)

Implemented Microsoft Foundry surfaces

Surface Route/version Lifecycle in current Microsoft documentation foundryR status
Chat Completions /openai/v1/chat/completions v1 Implemented
Responses /openai/v1/responses v1; optional api-version=v1 Implemented
Embeddings /openai/v1/embeddings v1 Implemented
Files /openai/v1/files v1 Implemented
Batches /openai/v1/batches v1 Implemented
Models /openai/v1/models v1 Implemented
Evals /openai/v1/evals v1 reference track Implemented
Vector stores /openai/v1/vector_stores v1 reference track Implemented
Conversations /openai/v1/conversations v1 reference track Implemented
Agent definitions and versions Project /agents?api-version=v1 Agents v2; some agent subfeatures are gated separately Implemented
Agent-backed Responses Project /openai/v1/responses Project-only agent_reference request field Implemented; lifecycle calls require project_endpoint
Image generation and edits /openai/v1/images/...?...api-version=preview Preview Experimental
Audio speech, transcription, translation /openai/v1/audio/...?...api-version=preview Preview Experimental
Video generation /openai/v1/video/...?...api-version=preview Preview Experimental

Resource-level Evals, vector stores, and conversations use the v1 reference track without a preview query value. Microsoft does not place an explicit GA badge on every individual reference page, so foundryR does not infer a stronger status than the published route and version establish.

Implemented Content Safety surfaces

Surface API version Lifecycle Authentication in foundryR
Text moderation 2024-09-01 Stable reference track API key or resource token
Image moderation 2024-09-01 Stable reference track API key or resource token
Protected material in text 2024-09-01 Stable reference track API key or resource token
Prompt Shields 2024-09-01 Stable reference track API key
Blocklists 2024-09-01 Stable reference track API key
Groundedness 2024-09-15-preview Preview and region-limited API key
Protected code 2024-09-15-preview Preview API key
Image-with-text moderation 2024-09-15-preview Preview API key
Task adherence 2025-09-15-preview Preview API key

Prompt Shields and blocklist documentation reviewed for this release did not include a formal OAuth2 security block. foundryR therefore does not claim Entra support for those operations.

Current omissions

The current Microsoft Foundry project reference also exposes connections, datasets, deployments, evaluation taxonomies and rules, evaluators, indexes, insights, red-team schedules and runs, and schedules. Those resource families are not implemented in foundryR 0.1.0.

Memory stores and agent containers are also not implemented. Microsoft gates those preview features with Foundry-Features headers such as MemoryStores=V1Preview and ContainerAgents=V1Preview; api-version=v1 alone does not establish that a project operation is GA.

Compatibility policy

  1. Resource v1 is the default for OpenAI-compatible operations.
  2. Project APIs are selected explicitly through a project endpoint.
  3. Preview operations remain exported but carry experimental documentation and may change in a minor release when Microsoft changes their contract.
  4. Legacy deployment routes are compatibility fallbacks, not the default.
  5. Recorded fixtures test known contracts without network access. Maintainers should run credentialed contract tests separately before each release.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.