> ## Documentation Index
> Fetch the complete documentation index at: https://agno-v2-codex-docs-audit-20260719-0149.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Create Agent Run

> Execute an agent with a message and optional media files. Supports both streaming and non-streaming responses.

**Features:**
- Text message input with optional session management
- Multi-media support: images (PNG, JPEG, WebP), audio (WAV, MP3), video (MP4, WebM, etc.)
- Document processing: PDF, CSV, DOCX, TXT, JSON
- Real-time streaming responses with Server-Sent Events (SSE)
- User and session context preservation

**Streaming Response:**
When `stream=true`, returns SSE events with `event` and `data` fields.



## OpenAPI

````yaml /reference-api/openapi.yaml post /agents/{agent_id}/runs
openapi: 3.1.0
info:
  title: Agno API Reference
  description: The all-in-one, private, secure agent platform that runs in your cloud.
  version: 2.7.4
servers: []
security: []
paths:
  /agents/{agent_id}/runs:
    post:
      tags:
        - Agents
      summary: Create Agent Run
      description: >-
        Execute an agent with a message and optional media files. Supports both
        streaming and non-streaming responses.


        **Features:**

        - Text message input with optional session management

        - Multi-media support: images (PNG, JPEG, WebP), audio (WAV, MP3), video
        (MP4, WebM, etc.)

        - Document processing: PDF, CSV, DOCX, TXT, JSON

        - Real-time streaming responses with Server-Sent Events (SSE)

        - User and session context preservation


        **Streaming Response:**

        When `stream=true`, returns SSE events with `event` and `data` fields.
      operationId: create_agent_run
      parameters:
        - name: agent_id
          in: path
          required: true
          schema:
            type: string
            title: Agent Id
      requestBody:
        required: true
        content:
          multipart/form-data:
            schema:
              $ref: '#/components/schemas/Body_create_agent_run'
      responses:
        '200':
          description: Agent run executed successfully
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RunSchema'
            text/event-stream:
              examples:
                event_stream:
                  summary: Example event stream response
                  value: |+
                    event: RunStarted
                    data: {"content": "Hello!", "run_id": "123..."}

        '202':
          description: Background run accepted when `background=true` and `stream=false`.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BackgroundRunResponse'
        '400':
          description: Invalid request or unsupported file type
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BadRequestResponse'
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/UnauthenticatedResponse'
        '403':
          description: Forbidden
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ForbiddenResponse'
        '404':
          description: Agent not found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/NotFoundResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ValidationErrorResponse'
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/InternalServerErrorResponse'
      security:
        - {}
        - HTTPBearer: []
components:
  schemas:
    Body_create_agent_run:
      properties:
        message:
          type: string
          title: Message
          description: The input message or prompt to send to the agent
        stream:
          type: boolean
          title: Stream
          description: Enable streaming responses via Server-Sent Events (SSE)
          default: true
        session_id:
          anyOf:
            - type: string
            - type: 'null'
          title: Session Id
          description: >-
            Session ID for conversation continuity. If not provided, a new
            session is created
        user_id:
          anyOf:
            - type: string
            - type: 'null'
          title: User Id
          description: User identifier for tracking and personalization
        files:
          anyOf:
            - items:
                type: string
                contentMediaType: application/octet-stream
              type: array
            - type: 'null'
          title: Files
          description: Files to upload (images, audio, video, or documents)
        version:
          anyOf:
            - type: string
            - type: 'null'
          title: Version
          description: Agent version to use for this run
        background:
          type: boolean
          title: Background
          description: >-
            Run in background and return immediately with run metadata (requires
            database)
          default: false
        factory_input:
          anyOf:
            - type: string
            - type: 'null'
          title: Factory Input
          description: >-
            JSON object with factory-specific parameters for dynamic agent
            construction
      type: object
      required:
        - message
      title: Body_create_agent_run
    RunSchema:
      properties:
        run_id:
          type: string
          title: Run Id
          description: Unique identifier for the run
        parent_run_id:
          anyOf:
            - type: string
            - type: 'null'
          title: Parent Run Id
          description: Parent run ID if this is a nested run
        agent_id:
          anyOf:
            - type: string
            - type: 'null'
          title: Agent Id
          description: Agent ID that executed this run
        user_id:
          anyOf:
            - type: string
            - type: 'null'
          title: User Id
          description: User ID associated with the run
        status:
          anyOf:
            - type: string
            - type: 'null'
          title: Status
          description: Run status (PENDING, RUNNING, COMPLETED, ERROR, etc.)
        run_input:
          anyOf:
            - type: string
            - type: 'null'
          title: Run Input
          description: Input provided to the run
        content:
          anyOf:
            - type: string
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Content
          description: Output content from the run
        run_response_format:
          anyOf:
            - type: string
            - type: 'null'
          title: Run Response Format
          description: Format of the response (text/json)
        reasoning_content:
          anyOf:
            - type: string
            - type: 'null'
          title: Reasoning Content
          description: Reasoning content if reasoning was enabled
        reasoning_steps:
          anyOf:
            - items:
                additionalProperties: true
                type: object
              type: array
            - type: 'null'
          title: Reasoning Steps
          description: List of reasoning steps
        metrics:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Metrics
          description: Performance and usage metrics
        messages:
          anyOf:
            - items:
                additionalProperties: true
                type: object
              type: array
            - type: 'null'
          title: Messages
          description: Message history for the run
        tools:
          anyOf:
            - items:
                additionalProperties: true
                type: object
              type: array
            - type: 'null'
          title: Tools
          description: Tools used in the run
        events:
          anyOf:
            - items:
                additionalProperties: true
                type: object
              type: array
            - type: 'null'
          title: Events
          description: Events generated during the run
        created_at:
          anyOf:
            - type: string
              format: date-time
            - type: 'null'
          title: Created At
          description: Run creation timestamp
        references:
          anyOf:
            - items:
                additionalProperties: true
                type: object
              type: array
            - type: 'null'
          title: References
          description: References cited in the run
        citations:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Citations
          description: Citations from the model (e.g., from Gemini grounding/search)
        reasoning_messages:
          anyOf:
            - items:
                additionalProperties: true
                type: object
              type: array
            - type: 'null'
          title: Reasoning Messages
          description: Reasoning process messages
        session_state:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Session State
          description: Session state at the end of the run
        images:
          anyOf:
            - items:
                additionalProperties: true
                type: object
              type: array
            - type: 'null'
          title: Images
          description: Images included in the run
        videos:
          anyOf:
            - items:
                additionalProperties: true
                type: object
              type: array
            - type: 'null'
          title: Videos
          description: Videos included in the run
        audio:
          anyOf:
            - items:
                additionalProperties: true
                type: object
              type: array
            - type: 'null'
          title: Audio
          description: Audio files included in the run
        files:
          anyOf:
            - items:
                additionalProperties: true
                type: object
              type: array
            - type: 'null'
          title: Files
          description: Files included in the run
        response_audio:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Response Audio
          description: Audio response if generated
        input_media:
          anyOf:
            - additionalProperties: true
              type: object
            - type: 'null'
          title: Input Media
          description: Input media attachments
        followups:
          anyOf:
            - items:
                type: string
              type: array
            - type: 'null'
          title: Followups
          description: Followup suggestions generated after the run
        forked_from_run_id:
          anyOf:
            - type: string
            - type: 'null'
          title: Forked From Run Id
          description: If this run was forked from another run, the source run's ID
        forked_from_message_index:
          anyOf:
            - type: integer
            - type: 'null'
          title: Forked From Message Index
          description: >-
            If this run was forked, the message index at which the source was
            truncated
        forked_from_session_id:
          anyOf:
            - type: string
            - type: 'null'
          title: Forked From Session Id
          description: If this run was created via session branch, the source session's ID
        regenerated_from:
          anyOf:
            - type: string
            - type: 'null'
          title: Regenerated From
          description: If this run was produced via regenerate=true, the source run's ID
        last_checkpoint_at_message_index:
          anyOf:
            - type: integer
            - type: 'null'
          title: Last Checkpoint At Message Index
          description: >-
            Message index of the most recent mid-run checkpoint
            (checkpoint='tool-batch' runs)
      type: object
      required:
        - run_id
      title: RunSchema
    BackgroundRunResponse:
      properties:
        run_id:
          type: string
          title: Run Id
          description: Unique identifier for the background run.
        session_id:
          type: string
          title: Session Id
          description: Session that contains the background run.
        status:
          type: string
          title: Status
          description: Initial run status.
      type: object
      required:
        - run_id
        - session_id
        - status
      title: BackgroundRunResponse
    BadRequestResponse:
      properties:
        detail:
          type: string
          title: Detail
          description: Error detail message
        error_code:
          anyOf:
            - type: string
            - type: 'null'
          title: Error Code
          description: Error code for categorization
      type: object
      required:
        - detail
      title: BadRequestResponse
      example:
        detail: Bad request
        error_code: BAD_REQUEST
    UnauthenticatedResponse:
      properties:
        detail:
          type: string
          title: Detail
          description: Error detail message
        error_code:
          anyOf:
            - type: string
            - type: 'null'
          title: Error Code
          description: Error code for categorization
      type: object
      required:
        - detail
      title: UnauthenticatedResponse
      example:
        detail: Unauthenticated access
        error_code: UNAUTHENTICATED
    ForbiddenResponse:
      properties:
        detail:
          type: string
          title: Detail
          description: Error detail message
      type: object
      required:
        - detail
      title: ForbiddenResponse
      example:
        detail: Insufficient permissions
    NotFoundResponse:
      properties:
        detail:
          type: string
          title: Detail
          description: Error detail message
        error_code:
          anyOf:
            - type: string
            - type: 'null'
          title: Error Code
          description: Error code for categorization
      type: object
      required:
        - detail
      title: NotFoundResponse
      example:
        detail: Not found
        error_code: NOT_FOUND
    ValidationErrorResponse:
      properties:
        detail:
          type: string
          title: Detail
          description: Error detail message
        error_code:
          anyOf:
            - type: string
            - type: 'null'
          title: Error Code
          description: Error code for categorization
      type: object
      required:
        - detail
      title: ValidationErrorResponse
      example:
        detail: Validation error
        error_code: VALIDATION_ERROR
    InternalServerErrorResponse:
      properties:
        detail:
          type: string
          title: Detail
          description: Error detail message
        error_code:
          anyOf:
            - type: string
            - type: 'null'
          title: Error Code
          description: Error code for categorization
      type: object
      required:
        - detail
      title: InternalServerErrorResponse
      example:
        detail: Internal server error
        error_code: INTERNAL_SERVER_ERROR
  securitySchemes:
    HTTPBearer:
      type: http
      scheme: bearer

````