> ## Documentation Index > Fetch the complete documentation index at: https://docs.withsplendor.com/llms.txt > Use this file to discover all available pages before exploring further. # Create a child tenant > Provisions a new isolated tenant for one of your end-customers, authenticated by a platform API key. The tenant id is generated by Splendor; pass an optional `external_id` to map it to your own customer id (unique within your platform). Query and ingest into the child by sending its id in the `X-Splendor-Tenant-Id` header with your platform key. ## OpenAPI ````yaml /api-reference/openapi.json post /v1/platform/tenants openapi: 3.1.0 info: description: >- Splendor is a search and retrieval API for your operational data. Ingest datasets — logs, documents, and structured records — and query them through one consistent interface that spans full-text, SQL, and semantic (vector) search. Every request authenticates with a bearer token and selects a workspace with the `X-Splendor-Tenant-Id` header. Read and query operations are available to any member; operations that create, change, or delete data require an admin role. All search modes return one shared envelope, and every result carries provenance back to the exact source object it came from. title: Splendor API version: 1.0.0 servers: - description: Production url: https://api.withsplendor.com security: - bearerAuth: [] tags: - description: Resolve the authenticated user and the tenants they can access. name: Identity - description: >- Build on Splendor as a platform: authenticate with a platform API key to provision an isolated tenant per end-customer and manage your platform keys. name: Platform - description: >- List datasets, inspect inferred schemas and readiness, and manage dataset lifecycle including deletion and schema rebuilds. name: Datasets & schema - description: >- Run full-text, SQL, and semantic search over your datasets, stream results, and resolve object media. name: Search & query - description: Save queries and materialize result sets for repeatable analysis. name: Views - description: >- Define named, versioned, parameterized SQL queries and manage their versions. name: Query Endpoints - description: Create and manage asynchronous exports of search results. name: Exports - description: >- Configure data sources, upload data through hosted multipart uploads, stream logs, and track ingest runs. name: Sources & ingest - description: >- Connect third-party systems by managing connector instances in the selected tenant. name: Connectors - description: Define and test detection rules that run against incoming data. name: Detections - description: Inspect discovered fields and promote them to fast, aggregatable fields. name: Fields - description: >- Operational visibility and recovery: audit logs, usage, dead-letter queue, reindex jobs, and data-deletion jobs. name: Operations paths: /v1/platform/tenants: post: tags: - Platform summary: Create a child tenant description: >- Provisions a new isolated tenant for one of your end-customers, authenticated by a platform API key. The tenant id is generated by Splendor; pass an optional `external_id` to map it to your own customer id (unique within your platform). Query and ingest into the child by sending its id in the `X-Splendor-Tenant-Id` header with your platform key. operationId: createPlatformTenant requestBody: content: application/json: schema: $ref: '#/components/schemas/ChildTenantCreateRequest' required: true responses: '201': content: application/json: schema: $ref: '#/components/schemas/ChildTenantResponse' description: Successful Response '401': $ref: '#/components/responses/Unauthorized' '403': $ref: '#/components/responses/Forbidden' '409': content: application/json: schema: $ref: '#/components/schemas/ApiError' description: The request conflicts with the current state of the resource. '422': content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' description: Validation Error '503': content: application/json: schema: $ref: '#/components/schemas/ApiError' description: A required backend is temporarily unavailable. components: schemas: ChildTenantCreateRequest: description: >- Platform request to provision an isolated child tenant for one of its end-customers. The tenant id is Splendor-generated; ``external_id`` is the platform's own mapping key (unique within the platform). properties: external_id: anyOf: - maxLength: 255 minLength: 1 type: string - type: 'null' title: External Id name: maxLength: 255 minLength: 1 title: Name type: string required: - name title: ChildTenantCreateRequest type: object ChildTenantResponse: example: created_at: '2026-01-15T09:30:00Z' external_id: cus_8210 name: Acme Corp plan: standard tenant_id: t-3f9c2a1b7e4d8c6a properties: created_at: format: date-time title: Created At type: string external_id: anyOf: - type: string - type: 'null' title: External Id name: title: Name type: string plan: title: Plan type: string tenant_id: title: Tenant Id type: string required: - tenant_id - name - external_id - plan - created_at title: ChildTenantResponse type: object ApiError: description: >- Error envelope returned by every Splendor API endpoint. ``detail`` is either a plain message string (most errors) or a structured ``{code, message}`` object (validation and capacity errors that carry a stable machine-readable code). examples: - detail: Dataset not found - detail: code: semantic_search_capacity_exhausted message: Semantic search capacity is temporarily exhausted; retry shortly. properties: detail: anyOf: - type: string - $ref: '#/components/schemas/ErrorBody' title: Detail required: - detail title: ApiError type: object HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' title: Detail type: array title: HTTPValidationError type: object ErrorBody: description: Structured error detail returned by validation and capacity errors. examples: - code: semantic_query_text_required message: Semantic vector search requires non-empty text. properties: code: title: Code type: string message: title: Message type: string required: - code - message title: ErrorBody type: object ValidationError: properties: ctx: title: Context type: object input: title: Input loc: items: anyOf: - type: string - type: integer title: Location type: array msg: title: Message type: string type: title: Error Type type: string required: - loc - msg - type title: ValidationError type: object responses: Unauthorized: content: application/json: schema: $ref: '#/components/schemas/ApiError' description: The bearer token is missing, malformed, or expired. Forbidden: content: application/json: schema: $ref: '#/components/schemas/ApiError' description: The token lacks access to the tenant or the role required. securitySchemes: bearerAuth: bearerFormat: JWT description: API token issued from the Splendor console. scheme: bearer type: http ````