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docs/openapi/paths/integrations/langchain/anthropic.yaml

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+# LangChain - Anthropic-compatible Endpoints
+# Reuses Anthropic integration schemas
+
+messages:
+  post:
+    operationId: langchainAnthropicMessages
+    summary: Create message (LangChain - Anthropic format)
+    description: |
+      Creates a message using Anthropic-compatible format via LangChain.
+    tags:
+    - LangChain Integration
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/anthropic/messages.yaml#/AnthropicMessageRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/anthropic/messages.yaml#/AnthropicMessageResponse'
+          text/event-stream:
+            schema:
+              $ref: '../../../schemas/integrations/anthropic/messages.yaml#/AnthropicStreamEvent'
+      '400':
+        description: Bad request
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/anthropic/common.yaml#/AnthropicError'
+      '500':
+        description: Internal server error
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/anthropic/common.yaml#/AnthropicError'
+
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []
+count-tokens:
+  post:
+    operationId: langchainAnthropicCountTokens
+    summary: Count tokens (LangChain - Anthropic format)
+    description: |
+      Counts tokens using Anthropic-compatible format via LangChain.
+    tags:
+    - LangChain Integration
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/anthropic/count-tokens.yaml#/AnthropicCountTokensRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/anthropic/count-tokens.yaml#/AnthropicCountTokensResponse'
+      '400':
+        description: Bad request
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/anthropic/common.yaml#/AnthropicError'
+      '500':
+        description: Internal server error
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/anthropic/common.yaml#/AnthropicError'
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []

docs/openapi/paths/integrations/langchain/bedrock.yaml

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+# LangChain - Bedrock-compatible Endpoints
+# Reuses Bedrock integration schemas
+
+converse:
+  post:
+    operationId: langchainBedrockConverse
+    summary: Converse with model (LangChain - Bedrock format)
+    description: |
+      Sends messages using AWS Bedrock Converse-compatible format via LangChain.
+    tags:
+    - LangChain Integration
+    parameters:
+    - name: modelId
+      in: path
+      required: true
+      schema:
+        type: string
+      description: Model ID
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/bedrock/converse.yaml#/BedrockConverseRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/bedrock/converse.yaml#/BedrockConverseResponse'
+      '400':
+        description: Bad request
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/bedrock/common.yaml#/BedrockError'
+      '500':
+        description: Internal server error
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/bedrock/common.yaml#/BedrockError'
+
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []
+converse-stream:
+  post:
+    operationId: langchainBedrockConverseStream
+    summary: Stream converse with model (LangChain - Bedrock format)
+    description: |
+      Streams messages using AWS Bedrock Converse-compatible format via LangChain.
+    tags:
+    - LangChain Integration
+    parameters:
+    - name: modelId
+      in: path
+      required: true
+      schema:
+        type: string
+      description: Model ID
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/bedrock/converse.yaml#/BedrockConverseRequest'
+    responses:
+      '200':
+        description: Successful streaming response
+        content:
+          application/x-amz-eventstream:
+            schema:
+              $ref: '../../../schemas/integrations/bedrock/converse.yaml#/BedrockStreamEvent'
+      '400':
+        description: Bad request
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/bedrock/common.yaml#/BedrockError'
+      '500':
+        description: Internal server error
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/bedrock/common.yaml#/BedrockError'
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []

docs/openapi/paths/integrations/langchain/cohere.yaml

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+# LangChain - Cohere-compatible Endpoints
+# Reuses Cohere integration schemas
+
+chat:
+  post:
+    operationId: langchainCohereChat
+    summary: Chat with model (LangChain - Cohere format)
+    description: |
+      Sends a chat request using Cohere-compatible format via LangChain.
+    tags:
+    - LangChain Integration
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/cohere/chat.yaml#/CohereChatRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/cohere/chat.yaml#/CohereChatResponse'
+          text/event-stream:
+            schema:
+              $ref: '../../../schemas/integrations/cohere/chat.yaml#/CohereChatStreamEvent'
+      '400':
+        description: Bad request
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/cohere/common.yaml#/CohereError'
+      '500':
+        description: Internal server error
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/cohere/common.yaml#/CohereError'
+
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []
+embed:
+  post:
+    operationId: langchainCohereEmbed
+    summary: Create embeddings (LangChain - Cohere format)
+    description: |
+      Creates embeddings using Cohere-compatible format via LangChain.
+    tags:
+    - LangChain Integration
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/cohere/embed.yaml#/CohereEmbeddingRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/cohere/embed.yaml#/CohereEmbeddingResponse'
+      '400':
+        description: Bad request
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/cohere/common.yaml#/CohereError'
+      '500':
+        description: Internal server error
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/cohere/common.yaml#/CohereError'
+
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []
+tokenize:
+  post:
+    operationId: langchainCohereTokenize
+    summary: Tokenize text (LangChain - Cohere format)
+    description: |
+      Tokenizes text using Cohere-compatible format via LangChain.
+    tags:
+    - LangChain Integration
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/cohere/tokenize.yaml#/CohereCountTokensRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/cohere/tokenize.yaml#/CohereCountTokensResponse'
+      '400':
+        description: Bad request
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/cohere/common.yaml#/CohereError'
+      '500':
+        description: Internal server error
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/cohere/common.yaml#/CohereError'
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []

docs/openapi/paths/integrations/langchain/genai.yaml

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+# LangChain - GenAI (Gemini) compatible Endpoints
+# Reuses GenAI integration schemas
+
+models:
+  get:
+    operationId: langchainGeminiListModels
+    summary: List models (LangChain - Gemini format)
+    description: |
+      Lists available models in Google Gemini API format via LangChain.
+    tags:
+    - LangChain Integration
+    parameters:
+    - name: pageSize
+      in: query
+      schema:
+        type: integer
+      description: Maximum number of models to return
+    - name: pageToken
+      in: query
+      schema:
+        type: string
+      description: Page token for pagination
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/genai/common.yaml#/GeminiListModelsResponse'
+      '400':
+        description: Bad request
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/genai/common.yaml#/GeminiError'
+      '500':
+        description: Internal server error
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/genai/common.yaml#/GeminiError'
+
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []
+generate-content:
+  post:
+    operationId: langchainGeminiGenerateContent
+    summary: Generate content (LangChain - Gemini format)
+    description: |
+      Generates content using Google Gemini-compatible format via LangChain.
+    tags:
+    - LangChain Integration
+    parameters:
+    - name: model
+      in: path
+      required: true
+      schema:
+        type: string
+      description: Model name with action
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/genai/generation.yaml#/GeminiGenerationRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/genai/generation.yaml#/GeminiGenerationResponse'
+      '400':
+        description: Bad request
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/genai/common.yaml#/GeminiError'
+      '500':
+        description: Internal server error
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/genai/common.yaml#/GeminiError'
+
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []
+stream-generate-content:
+  post:
+    operationId: langchainGeminiStreamGenerateContent
+    summary: Stream generate content (LangChain - Gemini format)
+    description: |
+      Streams content generation using Google Gemini-compatible format via LangChain.
+    tags:
+    - LangChain Integration
+    parameters:
+    - name: model
+      in: path
+      required: true
+      schema:
+        type: string
+      description: Model name with action
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/genai/generation.yaml#/GeminiGenerationRequest'
+    responses:
+      '200':
+        description: Successful streaming response
+        content:
+          text/event-stream:
+            schema:
+              $ref: '../../../schemas/integrations/genai/generation.yaml#/GeminiGenerationResponse'
+      '400':
+        description: Bad request
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/genai/common.yaml#/GeminiError'
+      '500':
+        description: Internal server error
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/genai/common.yaml#/GeminiError'
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []

docs/openapi/paths/integrations/langchain/openai.yaml

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+# LangChain - OpenAI-compatible Endpoints
+# Reuses OpenAI integration schemas
+
+text-completions:
+  post:
+    operationId: langchainOpenAITextCompletions
+    summary: Text completions (LangChain - OpenAI format)
+    description: |
+      Creates a text completion using OpenAI-compatible format via LangChain.
+      This is the legacy completions API.
+    tags:
+    - LangChain Integration
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/openai/text.yaml#/OpenAITextCompletionRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/openai/text.yaml#/OpenAITextCompletionResponse'
+          text/event-stream:
+            schema:
+              $ref: '../../../schemas/integrations/openai/text.yaml#/OpenAITextCompletionStreamResponse'
+      '400':
+        $ref: '../../../openapi.yaml#/components/responses/BadRequest'
+      '500':
+        $ref: '../../../openapi.yaml#/components/responses/InternalError'
+
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []
+chat-completions:
+  post:
+    operationId: langchainOpenAIChatCompletions
+    summary: Chat completions (LangChain - OpenAI format)
+    description: |
+      Creates a chat completion using OpenAI-compatible format via LangChain.
+    tags:
+    - LangChain Integration
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/openai/chat.yaml#/OpenAIChatRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/inference/chat.yaml#/ChatCompletionResponse'
+          text/event-stream:
+            schema:
+              $ref: '../../../schemas/inference/chat.yaml#/ChatCompletionStreamResponse'
+      '400':
+        $ref: '../../../openapi.yaml#/components/responses/BadRequest'
+      '500':
+        $ref: '../../../openapi.yaml#/components/responses/InternalError'
+
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []
+embeddings:
+  post:
+    operationId: langchainOpenAIEmbeddings
+    summary: Create embeddings (LangChain - OpenAI format)
+    description: |
+      Creates embeddings using OpenAI-compatible format via LangChain.
+    tags:
+    - LangChain Integration
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/openai/embeddings.yaml#/OpenAIEmbeddingRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/inference/embeddings.yaml#/EmbeddingResponse'
+      '400':
+        $ref: '../../../openapi.yaml#/components/responses/BadRequest'
+      '500':
+        $ref: '../../../openapi.yaml#/components/responses/InternalError'
+
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []
+models:
+  get:
+    operationId: langchainOpenAIListModels
+    summary: List models (LangChain - OpenAI format)
+    description: |
+      Lists available models using OpenAI-compatible format via LangChain.
+    tags:
+    - LangChain Integration
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/openai/common.yaml#/OpenAIListModelsResponse'
+      '400':
+        $ref: '../../../openapi.yaml#/components/responses/BadRequest'
+      '500':
+        $ref: '../../../openapi.yaml#/components/responses/InternalError'
+
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []
+responses:
+  post:
+    operationId: langchainOpenAIResponses
+    summary: Create response (LangChain - OpenAI Responses API)
+    description: |
+      Creates a response using OpenAI Responses API format via LangChain.
+      Supports streaming via SSE.
+    tags:
+    - LangChain Integration
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/openai/responses.yaml#/OpenAIResponsesRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/openai/responses.yaml#/OpenAIResponsesResponse'
+          text/event-stream:
+            schema:
+              $ref: '../../../schemas/integrations/openai/responses.yaml#/OpenAIResponsesStreamResponse'
+      '400':
+        $ref: '../../../openapi.yaml#/components/responses/BadRequest'
+      '500':
+        $ref: '../../../openapi.yaml#/components/responses/InternalError'
+
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []
+responses-input-tokens:
+  post:
+    operationId: langchainOpenAICountInputTokens
+    summary: Count input tokens (LangChain - OpenAI format)
+    description: |
+      Counts the number of tokens in a Responses API request via LangChain.
+    tags:
+    - LangChain Integration
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/openai/responses.yaml#/OpenAIResponsesRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/inference/count-tokens.yaml#/CountTokensResponse'
+      '400':
+        $ref: '../../../openapi.yaml#/components/responses/BadRequest'
+      '500':
+        $ref: '../../../openapi.yaml#/components/responses/InternalError'
+
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []
+speech:
+  post:
+    operationId: langchainOpenAISpeech
+    summary: Create speech (LangChain - OpenAI TTS)
+    description: |
+      Generates audio from text using OpenAI TTS via LangChain.
+    tags:
+    - LangChain Integration
+    requestBody:
+      required: true
+      content:
+        application/json:
+          schema:
+            $ref: '../../../schemas/integrations/openai/audio.yaml#/OpenAISpeechRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          audio/mpeg:
+            schema:
+              type: string
+              format: binary
+          text/event-stream:
+            schema:
+              $ref: '../../../schemas/integrations/openai/audio.yaml#/OpenAISpeechStreamResponse'
+      '400':
+        $ref: '../../../openapi.yaml#/components/responses/BadRequest'
+      '500':
+        $ref: '../../../openapi.yaml#/components/responses/InternalError'
+
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []
+transcriptions:
+  post:
+    operationId: langchainOpenAITranscriptions
+    summary: Create transcription (LangChain - OpenAI Whisper)
+    description: |
+      Transcribes audio into text using OpenAI Whisper via LangChain.
+    tags:
+    - LangChain Integration
+    requestBody:
+      required: true
+      content:
+        multipart/form-data:
+          schema:
+            $ref: '../../../schemas/integrations/openai/audio.yaml#/OpenAITranscriptionRequest'
+    responses:
+      '200':
+        description: Successful response
+        content:
+          application/json:
+            schema:
+              $ref: '../../../schemas/integrations/openai/audio.yaml#/OpenAITranscriptionResponse'
+          text/event-stream:
+            schema:
+              $ref: '../../../schemas/integrations/openai/audio.yaml#/OpenAITranscriptionStreamResponse'
+      '400':
+        $ref: '../../../openapi.yaml#/components/responses/BadRequest'
+      '500':
+        $ref: '../../../openapi.yaml#/components/responses/InternalError'
+    security:
+    - BearerAuth: []
+    - BasicAuth: []
+    - VirtualKeyAuth: []
+    - ApiKeyAuth: []