Beam Task Queues API

openapi: 3.0.1
info:
  title: Beam API
  description: >-
    Specification of the documented Beam (beam.cloud) HTTP surfaces: synchronous
    invocation of deployed web endpoints, asynchronous task submission to deployed
    task queues, and the control-plane Tasks API for querying status and cancelling
    tasks. Beam deployments are created from Python with the Beam SDK/CLI; this spec
    covers the resulting HTTP invocation and management patterns only.
  termsOfService: https://www.beam.cloud/terms
  contact:
    name: Beam Support
    url: https://docs.beam.cloud
  version: '2.0'
servers:
  - url: https://app.beam.cloud
    description: Invocation host for deployed endpoints and task queues (named or id path)
  - url: https://api.beam.cloud
    description: Control-plane host for the Tasks management API
paths:
  /endpoint/{name}:
    post:
      operationId: invokeNamedEndpoint
      tags:
        - Web Endpoints
      summary: Invoke a deployed web endpoint by name
      description: >-
        Synchronously invoke a deployed Python function exposed as a web endpoint,
        addressed by its deployment name on the shared invocation host. Endpoints
        are intended for synchronous work that completes within roughly 180 seconds.
        A deployment is also reachable at its versioned app subdomain
        (https://{name}-{id}-v{n}.app.beam.cloud).
      parameters:
        - name: name
          in: path
          required: true
          description: The name of the deployed endpoint.
          schema:
            type: string
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              additionalProperties: true
            example:
              x: 12
      responses:
        '200':
          description: OK - the function return value, serialized as JSON.
          content:
            application/json:
              schema:
                type: object
                additionalProperties: true
        '401':
          description: Unauthorized - missing or invalid Bearer token.
      security:
        - bearerAuth: []
  /endpoint/{name}/v{version}:
    post:
      operationId: invokeNamedEndpointVersion
      tags:
        - Web Endpoints
      summary: Invoke a specific version of a deployed web endpoint
      description: >-
        Invoke a specific deployment version of a named web endpoint, e.g.
        /endpoint/zonos-tts/v1.
      parameters:
        - name: name
          in: path
          required: true
          description: The name of the deployed endpoint.
          schema:
            type: string
        - name: version
          in: path
          required: true
          description: The deployment version number.
          schema:
            type: integer
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              additionalProperties: true
      responses:
        '200':
          description: OK - the function return value, serialized as JSON.
          content:
            application/json:
              schema:
                type: object
                additionalProperties: true
        '401':
          description: Unauthorized - missing or invalid Bearer token.
      security:
        - bearerAuth: []
  /endpoint/id/{id}:
    post:
      operationId: invokeEndpointById
      tags:
        - Web Endpoints
      summary: Invoke a deployed web endpoint by id
      description: >-
        Synchronously invoke a deployed endpoint addressed by its unique deployment
        id, e.g. /endpoint/id/55108039-e3bf-409b-bad5-f4982b2f1c02. Commonly used for
        temporary or ephemeral deployments.
      parameters:
        - name: id
          in: path
          required: true
          description: The unique id of the deployment.
          schema:
            type: string
            format: uuid
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              additionalProperties: true
      responses:
        '200':
          description: OK - the function return value, serialized as JSON.
          content:
            application/json:
              schema:
                type: object
                additionalProperties: true
        '401':
          description: Unauthorized - missing or invalid Bearer token.
      security:
        - bearerAuth: []
  /taskqueue/{name}:
    post:
      operationId: submitTaskByName
      tags:
        - Task Queues
      summary: Submit an asynchronous task to a deployed task queue
      description: >-
        Enqueue an asynchronous task on a deployed TaskQueue, addressed by its name on
        the shared invocation host (a deployment is equivalently reachable at its app
        subdomain https://{name}-{id}.app.beam.cloud). The call returns immediately
        with a task_id; the result is retrieved later from the Tasks management API or
        delivered to a configured callback_url webhook. Use task queues for long-running
        work beyond the synchronous endpoint window.
      parameters:
        - name: name
          in: path
          required: true
          description: The name of the deployed task queue.
          schema:
            type: string
      requestBody:
        required: false
        content:
          application/json:
            schema:
              type: object
              additionalProperties: true
      responses:
        '200':
          description: Task accepted and enqueued.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/TaskSubmitResponse'
        '401':
          description: Unauthorized - missing or invalid Bearer token.
      security:
        - bearerAuth: []
  /v2/task/{task_id}/:
    get:
      operationId: getTaskStatus
      tags:
        - Tasks
      summary: Get task status and metadata
      description: >-
        Retrieve the current status, timing, container details, and outputs for a
        previously submitted task. Served by the control-plane host api.beam.cloud.
      servers:
        - url: https://api.beam.cloud
      parameters:
        - name: task_id
          in: path
          required: true
          description: The unique id of the task.
          schema:
            type: string
            format: uuid
      responses:
        '200':
          description: Task status and metadata.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Task'
        '401':
          description: Unauthorized - missing or invalid Bearer token.
        '404':
          description: Task not found.
      security:
        - bearerAuth: []
  /v2/task/cancel/:
    delete:
      operationId: cancelTasks
      tags:
        - Tasks
      summary: Cancel one or more tasks
      description: >-
        Cancel a list of running or pending tasks by id. Served by the control-plane
        host api.beam.cloud.
      servers:
        - url: https://api.beam.cloud
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                task_ids:
                  type: array
                  items:
                    type: string
                    format: uuid
              required:
                - task_ids
            example:
              task_ids:
                - 55108039-e3bf-409b-bad5-f4982b2f1c02
      responses:
        '200':
          description: Tasks cancelled.
        '401':
          description: Unauthorized - missing or invalid Bearer token.
      security:
        - bearerAuth: []
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        Beam API token passed as `Authorization: Bearer <TOKEN>`. Generate tokens in
        the Beam dashboard or with the Beam CLI.
  schemas:
    TaskSubmitResponse:
      type: object
      properties:
        task_id:
          type: string
          format: uuid
          description: Identifier used to poll status or correlate the callback.
    Task:
      type: object
      properties:
        id:
          type: string
          format: uuid
        status:
          type: string
          description: Current task state.
          enum:
            - PENDING
            - RUNNING
            - COMPLETE
            - ERROR
            - CANCELLED
            - TIMEOUT
        outputs:
          type: array
          description: Output artifacts (e.g. files with downloadable URLs).
          items:
            type: object
            additionalProperties: true
        started_at:
          type: string
          format: date-time
        ended_at:
          type: string
          format: date-time
        expires_in:
          type: integer
          description: Seconds until the outputs expire.
security:
  - bearerAuth: []