> ## Documentation Index > Fetch the complete documentation index at: https://promptwatch.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Validate API Key > Validate an API key and get associated project/organization details. For organization-level keys, optionally provide X-Project-Id header to validate access to a specific project. ## OpenAPI ````yaml /v2/openapi.json get /auth/validate openapi: 3.0.0 info: title: Promptwatch API v2 description: >- API v2 for customer integrations with Promptwatch monitoring platform. This version provides improved structure, additional endpoints, and enhanced functionality. version: 2.0.0 contact: name: Promptwatch Support email: team@promptwatch.com url: https://promptwatch.com license: name: Commercial url: https://promptwatch.com/terms-and-conditions servers: - url: https://server.promptwatch.com/api/v2 description: Promptwatch API v2 security: [] tags: - name: Authentication description: API key validation and authentication - name: Content description: >- AI content generation and optimization. Create content asynchronously and poll for results. - name: Content Gap description: Content gap analysis and recommendations - name: Models description: Available LLM models - name: Monitors description: Monitor management and CRUD operations - name: Page Tracker description: Track URLs and inspect citation stats, responses, and prompts - name: Prompts description: Prompt management and operations - name: Query Fanouts description: ChatGPT query fanout keywords - name: Responses description: LLM response data and analytics - name: Tags description: Tag management for prompts - name: Topics description: Topic management for prompts - name: Actions description: Action items (GEO suggestions and tasks) - name: Personas description: Persona configuration for monitors - name: Brands description: Brand management for competitive analysis - name: Visibility description: Brand visibility time series and competitor heatmaps - name: Citations description: Citation analytics from AI responses - name: Analytics description: Visitor analytics, AI crawler logs, sentiment, and brand visibility trends - name: Projects description: Project management (organization-level keys only) - name: Sitemap description: Sitemap crawl progress and discovered URLs - name: Site Health description: >- Crawled pages with SEO issues (titles, meta descriptions, H1, thin content) - name: Socials description: >- Social media citations (Reddit posts and YouTube videos) found in LLM responses paths: /auth/validate: get: tags: - Authentication summary: Validate API Key description: >- Validate an API key and get associated project/organization details. For organization-level keys, optionally provide X-Project-Id header to validate access to a specific project. operationId: validateApiKey parameters: - schema: type: string format: uuid in: header name: x-project-id required: false description: >- Project ID to validate (required for organization-level keys when accessing project resources) responses: '200': description: Default Response content: application/json: schema: type: object example: valid: true keyType: organization project: id: 6ba7b810-9dad-11d1-80b4-00c04fd430c8 name: Example Project slug: example-project organization: id: 6ba7b811-9dad-11d1-80b4-00c04fd430c8 name: Example Org slug: example-org apiKey: id: 550e8400-e29b-41d4-a716-446655440001 name: CI integration permission: FULL createdAt: '2026-03-01T12:00:00.000Z' lastUsedAt: '2026-03-30T08:15:22.000Z' availableProjects: null properties: valid: type: boolean description: Whether the API key is valid keyType: type: string enum: - project - organization description: Type of API key - project-level or organization-level project: type: object nullable: true properties: id: type: string description: Project ID name: type: string description: Project name slug: type: string description: Project slug required: - id - name - slug description: >- Project details. For org keys, only present when X-Project-Id header is provided. organization: type: object properties: id: type: string description: Organization ID name: type: string description: Organization name slug: type: string description: Organization slug required: - id - name - slug apiKey: type: object properties: id: type: string description: API key ID name: type: string description: API key name permission: type: string enum: - FULL - READ_ONLY description: Permission level of the API key createdAt: type: string format: date-time description: When the API key was created lastUsedAt: type: string format: date-time nullable: true description: When the API key was last used required: - id - name - permission - createdAt availableProjects: type: array nullable: true items: type: object properties: id: type: string description: Project ID name: type: string description: Project name slug: type: string description: Project slug required: - id - name - slug description: >- List of available projects. Only present for organization-level keys when no X-Project-Id header is provided. required: - valid - keyType - organization - apiKey '401': description: Default Response content: application/json: schema: type: object example: valid: false message: Invalid API key. properties: valid: type: boolean description: Whether the API key is valid enum: - false message: type: string description: Error message required: - valid - message '403': description: Default Response content: application/json: schema: type: object example: error: Unauthorized message: Missing or invalid X-API-Key header. properties: error: type: string description: Error category (often aligned with HTTP semantics) code: type: string description: Optional machine-readable code message: type: string description: Human-readable explanation details: type: object description: Optional structured detail (e.g. validation) additionalProperties: true required: - error - message additionalProperties: false '500': description: Default Response content: application/json: schema: type: object example: error: Unauthorized message: Missing or invalid X-API-Key header. properties: error: type: string description: Error category (often aligned with HTTP semantics) code: type: string description: Optional machine-readable code message: type: string description: Human-readable explanation details: type: object description: Optional structured detail (e.g. validation) additionalProperties: true required: - error - message additionalProperties: false security: - ApiKeyAuth: [] components: securitySchemes: ApiKeyAuth: type: apiKey in: header name: X-API-Key description: >- API key for authentication. Get yours from the Promptwatch dashboard under Settings > API Keys. ````