Invite a member

Create a pending invitation for the given email (new and existing users alike). The invitee joins by opening the invite link, authenticating through the standard login/signup flow, then explicitly accepting. When SMTP is configured an invitation email is sent; otherwise the admin shares the returned token out of band.

POST/api/orgs/{orgId}/members

Authorization

better-auth.session_token<token>

Cookie session from Better Auth. Requires X-Org-Id header for org-scoped routes.

In: cookie

Path Parameters

orgId*string

Request Body

application/json

curl -X POST "https://your-instance/api/orgs/string/members" \  -H "Content-Type: application/json" \  -d '{    "email": "[email protected]"  }'
{
  "id": "inv_abc123",
  "email": "[email protected]",
  "role": "member",
  "space_assignments": [
    {
      "spaceId": "spc_...",
      "preset_role": "operator"
    }
  ],
  "token": "inv_abc123def456",
  "expiresAt": "2026-02-01T00:00:00Z",
  "createdAt": "2026-01-25T00:00:00Z"
}

{
  "type": "https://docs.appstrate.dev/errors/validation-failed",
  "title": "Validation Failed",
  "status": 400,
  "detail": "name: Invalid input: expected string, received undefined (+2 more)",
  "code": "validation_failed",
  "request_id": "req_abc123",
  "errors": [
    {
      "field": "name",
      "code": "required",
      "message": "Invalid input: expected string, received undefined"
    },
    {
      "field": "email",
      "code": "invalid_format",
      "message": "Invalid email address"
    },
    {
      "field": "age",
      "code": "invalid_type",
      "message": "Invalid input: expected number, received string"
    }
  ]
}

{
  "type": "https://docs.appstrate.dev/errors/unauthorized",
  "title": "Unauthorized",
  "status": 401,
  "detail": "Invalid or missing session",
  "code": "unauthorized",
  "request_id": "req_abc123"
}
{
  "type": "https://docs.appstrate.dev/errors/forbidden",
  "title": "Forbidden",
  "status": 403,
  "detail": "Insufficient permissions",
  "code": "forbidden",
  "request_id": "req_abc123"
}
{
  "type": "https://docs.appstrate.dev/errors/not-found",
  "title": "Not Found",
  "status": 404,
  "detail": "Resource not found",
  "code": "not_found",
  "request_id": "req_abc123"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 0,
  "detail": "string",
  "instance": "string",
  "code": "string",
  "request_id": "string",
  "param": "string",
  "retry_after": 0,
  "errors": [
    {
      "field": "string",
      "code": "string",
      "message": "string",
      "title": "string",
      "candidate_connections": [
        {
          "id": "string",
          "label": "string",
          "account_id": "string",
          "owned_by_actor": true,
          "needs_reconnection": true
        }
      ],
      "connection_id": "string",
      "missing_scopes": [
        "string"
      ],
      "owned_by_actor": true,
      "required_scopes": [
        "string"
      ],
      "auth_key": "string",
      "required_auth_key": "string",
      "available_auth_keys": [
        "string"
      ],
      "connect_url": "http://example.com",
      "expiresAt": "2019-08-24T14:15:22Z",
      "packageId": "string"
    }
  ],
  "invitation_id": "string"
}
{
  "type": "https://docs.appstrate.dev/errors/internal-error",
  "title": "Internal Server Error",
  "status": 500,
  "detail": "An unexpected error occurred. Please try again or contact support.",
  "code": "internal_error",
  "request_id": "req_abc123"
}