> ## Documentation Index > Fetch the complete documentation index at: https://cactal.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # Invite a member by email > Creates an invitation and, by default, emails the recipient an acceptance link; pass `sendEmail: false` to skip the email and deliver the returned `url` through your own channel. The response always includes the acceptance `url`. Requires a role with member management (owner or admin). The invited role defaults to `full_editor` and cannot be `owner`; invitations expire after 48 hours unless a custom `expiresAt` is set. Returns 409 when a pending invitation already exists for the email (pass `resend: true` to cancel it and issue a new one) or when the email already belongs to an organization member. List pending invitations with `organizations.invitations.list`. ## OpenAPI ````yaml /api-reference/openapi.json post /organizations/{organizationId}/invitations openapi: 3.1.0 info: title: Cactal API version: 1.0.0 description: >- The Cactal public API. Create, edit, publish, and operate websites programmatically. Authenticate every request with an API key sent as `Authorization: Bearer `. servers: - url: https://api.cactal.ai/v1 security: - apiKey: [] tags: - name: Documentation description: >- Search and read the Cactal product documentation for concepts, guides, agent workflows, platform behavior, and API operations. - name: Feedback description: >- Submit free-form product feedback from users and agents to the Cactal feedback inbox. - name: Websites description: >- Create and manage websites — the top-level resource that owns source code, content, assets, domains, and analytics. - name: Website editors description: >- Grant, list, and revoke website-scoped editor access, and invite collaborators to a single website by email. - name: API keys description: >- Create, scope, rotate, and revoke the API keys that authenticate programmatic and agent access. - name: Source code description: >- Read and edit the framework source files of a website draft. Mutations require an edit lease. - name: Publishing description: Validate, build, publish, and roll back website versions. - name: CMS collections description: >- Define the content model: collections of structured content owned by a website. - name: CMS fields description: Manage the typed fields that make up a collection schema. - name: CMS items description: >- Create, query, publish, and organize the content entries inside a collection. - name: Domains description: >- Manage platform subdomains and custom domains, including DNS verification and the primary domain. - name: Assets description: Upload and manage website files and images served from the Cactal CDN. - name: Media generation description: >- Generate reference-guided website images that are stored as ordinary Cactal CDN assets. - name: Project Context description: >- Upload private durable reference material that the website agent can search, read, and inspect. - name: Analytics description: >- Read first-party traffic analytics for a website and export datasets as CSV. - name: Organizations description: Manage organizations, members, and organization-wide invitations. - name: Audit log description: >- Read the immutable record of actions performed in an organization by users and API keys. - name: Billing description: >- Read billing state and manage plans, site capacity, and prepaid usage balance. Every billing operation requires the organization owner role, which API keys cannot hold — today these operations are performed from the dashboard, return 403 for API-key callers, and are hidden from MCP tool lists. paths: /organizations/{organizationId}/invitations: post: tags: - Organizations summary: Invite a member by email description: >- Creates an invitation and, by default, emails the recipient an acceptance link; pass `sendEmail: false` to skip the email and deliver the returned `url` through your own channel. The response always includes the acceptance `url`. Requires a role with member management (owner or admin). The invited role defaults to `full_editor` and cannot be `owner`; invitations expire after 48 hours unless a custom `expiresAt` is set. Returns 409 when a pending invitation already exists for the email (pass `resend: true` to cancel it and issue a new one) or when the email already belongs to an organization member. List pending invitations with `organizations.invitations.list`. operationId: organizations.invitations.create parameters: - name: organizationId in: path required: true schema: type: string minLength: 1 requestBody: required: true content: application/json: schema: type: object properties: email: type: string format: email pattern: >- ^(?!\.)(?!.*\.\.)([A-Za-z0-9_'+\-\.]*)[A-Za-z0-9_+-]@([A-Za-z0-9][A-Za-z0-9\-]*\.)+[A-Za-z]{2,}$ role: default: full_editor type: string enum: - admin - full_editor - content_editor expiresAt: anyOf: - {} - type: string format: date-time pattern: >- ^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$ resend: type: boolean callbackUrl: type: string format: uri sendEmail: description: >- Whether to email the recipient an acceptance link. Defaults to `true`; pass `false` to create the invitation silently and deliver the returned `url` yourself. type: boolean required: - email responses: '200': description: The created invitation with its acceptance URL. content: application/json: schema: type: object properties: id: type: string description: Unique invitation ID. email: type: string description: Invited email address, normalized to lowercase. role: type: string enum: - admin - full_editor - content_editor description: >- Organization role granted on acceptance. `owner` is never invitable. status: type: string enum: - pending - accepted - rejected - canceled description: >- Lifecycle status. Only pending invitations can be accepted. expiresAt: description: >- When the invitation stops being acceptable (48 hours after creation by default). type: string format: date-time createdAt: description: When the invitation was created. type: string format: date-time url: type: string description: >- Acceptance URL for the invited email. Anyone signed in with that verified email can accept through it. required: - id - email - role - status - expiresAt - createdAt - url additionalProperties: false '400': description: >- Validation failed. The response `message` names the first invalid field. content: application/json: schema: $ref: '#/components/schemas/ServiceError' '401': description: Missing, invalid, expired, or revoked API key. content: application/json: schema: $ref: '#/components/schemas/ServiceError' '403': description: The authenticated principal lacks the required capability. content: application/json: schema: $ref: '#/components/schemas/ServiceError' '404': description: >- The resource does not exist or is outside the principal’s access scope. content: application/json: schema: $ref: '#/components/schemas/ServiceError' '409': description: The request conflicts with the current state of the resource. content: application/json: schema: $ref: '#/components/schemas/ServiceError' '429': description: >- Rate limit exceeded. Retry after the number of seconds in the `Retry-After` header. content: application/json: schema: $ref: '#/components/schemas/ServiceError' components: schemas: ServiceError: type: object required: - kind - message description: >- Canonical error body returned by every non-2xx response. Extra fields carry error-specific details. properties: kind: type: string enum: - validation - unauthorized - forbidden - not_found - conflict - rate_limited - internal description: Stable, machine-readable error category. message: type: string description: Human-readable explanation of the failure. suggestion: type: string description: >- What to do next when the failure has a known fix; may name the exact operation to call. validValues: type: array items: type: string description: The acceptable values for the failing field, when the set is closed. additionalProperties: true securitySchemes: apiKey: type: http scheme: bearer description: >- Cactal API key. Create one in the dashboard or via `POST /apiKeys`. The plaintext key is shown once at creation. ````