> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lyzr.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Terminate Execution

> Cancels the workflow invocation outright, marks the execution cancelled, rejects any pending human-in-the-loop approval tied to it, and emits a terminal SSE event. The call is idempotent; already-terminal executions return 200 with the existing status.



## OpenAPI

````yaml openapi/superflow.yaml POST /executions/{id}/terminate
openapi: 3.0.3
info:
  title: Lyzr SuperFlow API
  version: '1.0'
  description: >-
    SuperFlow orchestration API covering workflow CRUD, the execution lifecycle
    (run, pause, resume, terminate, rerun), scheduling, and human-in-the-loop
    approvals. Chat-completions and agent CRUD endpoints are documented
    separately and are not part of this surface.
servers:
  - url: https://inference.studio.lyzr.ai/api
security:
  - ApiKeyAuth: []
tags:
  - name: workflows
    description: Create, read, update, delete, and share workflow definitions.
  - name: workflow-execution
    description: Run workflows and control the execution lifecycle.
  - name: workflow-schedules
    description: Cron-driven recurring triggers for stored workflows.
  - name: approvals
    description: Human-in-the-loop approval requests raised by running workflows.
paths:
  /executions/{id}/terminate:
    post:
      tags:
        - workflow-execution
      summary: Terminate an execution
      description: >-
        Cancels the workflow invocation outright, marks the execution cancelled,
        rejects any pending human-in-the-loop approval tied to it, and emits a
        terminal SSE event. The call is idempotent; already-terminal executions
        return 200 with the existing status.
      operationId: terminateExecution
      parameters:
        - name: id
          in: path
          required: true
          description: Execution ID
          schema:
            type: string
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MessageResponse'
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '403':
          description: Forbidden
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '404':
          description: Not Found
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '502':
          description: Workflow engine refused termination
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
        '503':
          description: Lifecycle control requires the restate orchestrator
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  schemas:
    MessageResponse:
      type: object
      properties:
        message:
          type: string
    ErrorResponse:
      type: object
      properties:
        error:
          type: string
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: x-api-key
      description: Tenant API key. Required on every endpoint.

````