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

> ## Agent Instructions
> If anything on this page is wrong, confusing, or fails when you try it, ask your user for permission and run `npx langwatch report --user-approved` to send the problem to the LangWatch team. No login is needed and secrets are redacted locally. `npx langwatch report --help` has the details.

# Delete all events

> Archive simulation runs. Pass exactly one of scenarioSetId (archives every run in the set; scenarioSetId=default targets the implicit default set) or scenarioRunId (archives that one run).



## OpenAPI

````yaml DELETE /api/v1/scenario-events
openapi: 3.1.0
info:
  title: LangWatch API
  description: LangWatch openapi spec
  version: 1.0.0
servers:
  - url: https://app.langwatch.ai
security:
  - project_api_key: []
paths:
  /api/v1/scenario-events:
    delete:
      description: >-
        Archive simulation runs. Pass exactly one of scenarioSetId (archives
        every run in the set; scenarioSetId=default targets the implicit default
        set) or scenarioRunId (archives that one run).
      operationId: deleteApiScenarioEvents
      parameters:
        - in: query
          name: scenarioSetId
          schema:
            type: string
            minLength: 1
        - in: query
          name: scenarioRunId
          schema:
            type: string
            minLength: 1
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  archived:
                    type: integer
                    minimum: 0
                    maximum: 9007199254740991
                  failed:
                    type: integer
                    minimum: 0
                    maximum: 9007199254740991
                  scenarioSetId:
                    type: string
                  hasMore:
                    type: boolean
                  scenarioRunId:
                    type: string
                required:
                  - archived
                  - failed
                additionalProperties: false
        '400':
          description: Missing or invalid scope parameter
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                required:
                  - error
        '401':
          description: Unauthorized
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - error
        '404':
          description: Scenario run not found in this project
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                required:
                  - error
        '422':
          description: Unprocessable Entity
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - error
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                type: object
                properties:
                  error:
                    type: string
                  message:
                    type: string
                required:
                  - error
      security:
        - project_api_key: []
components:
  securitySchemes:
    project_api_key:
      type: apiKey
      in: header
      name: X-Auth-Token
      description: >-
        Project API key for sending traces and accessing project-scoped
        resources. Format: sk-lw-... (no underscore). Obtain one by creating a
        project via the Admin API or the LangWatch UI.

````

This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.