> ## 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.

# Regenerate project API key

> Deprecated. Project base keys can be rotated only by a signed-in project administrator in the browser. Organization API keys are always refused with 403.



## OpenAPI

````yaml POST /api/v1/projects/{id}/regenerate-api-key
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/projects/{id}/regenerate-api-key:
    post:
      summary: Regenerate the project API key
      description: >-
        Deprecated. Project base keys can be rotated only by a signed-in project
        administrator in the browser. Organization API keys are always refused
        with 403.
      operationId: regenerateProjectApiKey
      parameters:
        - in: path
          name: id
          schema:
            type: string
            minLength: 1
          required: true
      responses:
        '200':
          description: Success
          content:
            application/json:
              schema:
                type: object
                properties:
                  apiKey:
                    type: string
                    minLength: 1
                required:
                  - apiKey
                additionalProperties: false
        '401':
          description: Invalid or missing API key token
          content: {}
        '403':
          description: >-
            A signed-in project administrator is required; API-key principals
            cannot rotate base keys
          content: {}
      security:
        - admin_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.
    admin_api_key:
      type: http
      scheme: bearer
      description: >-
        Admin API key for organization-level operations (managing projects, API
        keys). Create one in Settings > API Keys or via POST /api/api-keys.
        Format: sk-lw-{id}_{secret}.

````

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