> ## Documentation Index > Fetch the complete documentation index at: https://docs.mixpeek.com/docs/llms.txt > Use this file to discover all available pages before exploring further. # Get Namespace Stats (Batch) > Returns document/bucket/collection/object counts for many namespaces in ONE call. Replaces per-row /stats fan-out on list views. Counts are aggregated in batch and live doc-counts gathered concurrently; namespaces the caller cannot see are omitted. ## OpenAPI ````yaml post /v1/namespaces/stats/batch openapi: 3.1.0 info: title: Mixpeek API description: >- This is the Mixpeek API, providing access to various endpoints for data processing and retrieval. termsOfService: https://mixpeek.com/terms contact: name: Mixpeek Support url: https://mixpeek.com/contact email: info@mixpeek.com version: '0.82' servers: - url: https://api.mixpeek.com description: Production security: - BearerAuth: [] paths: /v1/namespaces/stats/batch: post: tags: - Namespaces summary: Get Namespace Stats (Batch) description: >- Returns document/bucket/collection/object counts for many namespaces in ONE call. Replaces per-row /stats fan-out on list views. Counts are aggregated in batch and live doc-counts gathered concurrently; namespaces the caller cannot see are omitted. operationId: get_namespace_stats_batch_v1_namespaces_stats_batch_post parameters: [] requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/NamespaceStatsBatchRequest' responses: '200': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/NamespaceStatsBatchResponse' '400': description: Bad Request content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '401': description: Unauthorized content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '403': description: Forbidden content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '404': description: Not Found content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '422': description: Validation Error content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' '500': description: Internal Server Error content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' security: - BearerAuth: [] components: schemas: NamespaceStatsBatchRequest: properties: namespace_ids: items: type: string type: array maxItems: 100 title: Namespace Ids description: Namespace IDs to fetch counts for (the visible rows). type: object required: - namespace_ids title: NamespaceStatsBatchRequest description: Request for batch namespace stats — the visible page of namespace IDs. NamespaceStatsBatchResponse: properties: stats: additionalProperties: $ref: '#/components/schemas/NamespaceStatsResponse' type: object title: Stats description: >- Map of namespace_id → its counts. Namespaces the caller cannot see are omitted. type: object title: NamespaceStatsBatchResponse description: >- Per-namespace stats keyed by namespace_id, returned in ONE call. Replaces the Studio namespaces-list N+1 that fired one ``GET /namespaces/{id}/stats`` per visible row (each a live MVS doc-count). Counts are batch-aggregated (buckets/collections/objects in 3 queries) and doc counts are gathered concurrently server-side. ErrorResponse: properties: success: type: boolean title: Success description: Always false for error responses default: false status: type: integer title: Status description: HTTP status code for this error error: $ref: '#/components/schemas/ErrorDetail' description: Error details payload type: object required: - status - error title: ErrorResponse description: Error response model. examples: - error: details: id: ns_123 resource: namespace message: Namespace not found type: NotFoundError status: 404 success: false HTTPValidationError: properties: detail: items: $ref: '#/components/schemas/ValidationError' type: array title: Detail type: object title: HTTPValidationError NamespaceStatsResponse: properties: namespace_id: type: string title: Namespace Id description: Namespace identifier document_count: type: integer title: Document Count description: Total number of documents in this namespace default: 0 bucket_count: type: integer title: Bucket Count description: Total number of buckets in this namespace default: 0 collection_count: type: integer title: Collection Count description: Total number of collections in this namespace default: 0 object_count: type: integer title: Object Count description: Total number of objects across all buckets in this namespace default: 0 type: object required: - namespace_id title: NamespaceStatsResponse description: Per-namespace statistics (counts) returned by the stats endpoint. ErrorDetail: properties: message: type: string title: Message description: Human-readable error message type: type: string title: Type description: Stable error type identifier (machine-readable) code: anyOf: - type: string - type: 'null' title: Code description: >- Fine-grained error code for programmatic handling (e.g., namespace_name_taken, feature_extractor_not_found). Present only when consumers may need to branch on a specific error condition. details: anyOf: - additionalProperties: true type: object - type: 'null' title: Details description: >- Optional structured details to help debugging (validation errors, IDs, etc.) type: object required: - message - type title: ErrorDetail description: Error detail model. ValidationError: properties: loc: items: anyOf: - type: string - type: integer type: array title: Location msg: type: string title: Message type: type: string title: Error Type input: title: Input ctx: type: object title: Context type: object required: - loc - msg - type title: ValidationError securitySchemes: BearerAuth: type: http scheme: bearer description: >- Mixpeek API key, sent as `Authorization: Bearer mxp_sk_...`. Create one in Studio under Settings → API Keys, or with an admin key via `POST /v1/organizations/users/{user_email}/api-keys`. A missing header returns 403; an invalid or revoked key returns 401. ````