> ## Documentation Index > Fetch the complete documentation index at: https://docs.trackstarhq.com/llms.txt > Use this file to discover all available pages before exploring further. > ## Agent Instructions > Trackstar is a unified REST API for WMS, cart, and carrier systems. Base URL: https://production.trackstarhq.com. There is no SDK; call the API with plain HTTP. > Send x-trackstar-api-key on every request. Endpoints scoped to one connection also need x-trackstar-access-token. Read both from environment variables and never print them. > Reads return data Trackstar has already synced from the connected system. Writes (POST, PUT, PATCH, DELETE) are forwarded to the connected system immediately. > A new connection has no data until its initial sync finishes. Wait for the connection.historical-sync-completed webhook, or poll GET /connections/{connection_id} and check historical_sync_completed. > List endpoints page with page_token and next_token (limit is capped at 1000). Repeat every filter on every page. Filters use field[operator]=value, for example created_date[gte]=2026-01-01T00:00:00Z. > Write bodies must not contain null or empty strings; omit the field instead. Call GET /integrations/{integration_type}/{integration_name}/write-info first to learn the exact fields an integration accepts. > To test without real credentials, POST /sandbox/generate-sandbox/{wms|cart|carrier} with the API key returns a sandbox access token. Start at https://docs.trackstarhq.com/how-to-guides/build-with-ai.md and install the skills with: npx skills add https://docs.trackstarhq.com # Update Cart Warehouse Trackstar Tags > Update the trackstar tags for the specified cart warehouse. ## OpenAPI ````yaml put /cart/warehouses/{warehouse_id}/trackstar-tags openapi: 3.1.0 info: description: > Trackstar is a Unified API that provides standard endpoints for Supply Chain Logistics. We currently offer an API for Warehouse Management Systems (WMS). title: Trackstar API version: 0.1.0 servers: - description: Trackstar API url: https://production.trackstarhq.com security: [] tags: [] externalDocs: description: Trackstar API Documentation url: https://docs.trackstarhq.com paths: /cart/warehouses/{warehouse_id}/trackstar-tags: put: tags: - cart - Warehouses summary: Update Cart Warehouse Trackstar Tags description: Update the trackstar tags for the specified cart warehouse. operationId: put_cart_update_warehouse_trackstar_tags parameters: - in: path name: warehouse_id schema: type: string required: true - in: header name: x-trackstar-api-key description: Your organization-level Trackstar API key. schema: type: string example: required: true - in: header name: x-trackstar-access-token description: >- Your user's access token for a specific integration (ShipHero, Extensiv, etc). schema: type: string example: required: true - in: header name: Idempotency-Key description: >- Optional key that makes this request safe to retry. Send the same key on a retry and Trackstar returns the first attempt's response instead of writing again; if the first attempt failed, the retry runs the write again. Reusing a key with a different request is rejected. Keys expire after 24 hours. schema: type: string minLength: 1 maxLength: 255 example: 9f1c2b1e-6d4a-4c1c-9a8e-2b7e3c5d1f00 required: false requestBody: content: application/json: schema: $ref: '#/components/schemas/AddTrackstarTagwarehousesSchema' responses: '200': content: application/json: schema: $ref: '#/components/schemas/cartAddTrackstarTagWarehouseResponse' description: Successful response '404': content: application/json: schema: $ref: '#/components/schemas/HTTPError' description: Not found '422': content: application/json: schema: $ref: '#/components/schemas/ValidationError' description: Validation error components: schemas: AddTrackstarTagwarehousesSchema: type: object properties: trackstar_tags: type: array description: >- A list of custom tags associated with the resource. A tag can be either a string or a dictionary with one key-value pair. example: - tag1 - tag2 - tag3: value3 items: {} required: - trackstar_tags additionalProperties: false title: AddTrackstarTagwarehousesSchema cartAddTrackstarTagWarehouseResponse: type: object properties: data: $ref: '#/components/schemas/AddCartWarehousesTagsResponseDataSchema' id: type: string description: The ID of the object that has been created or modified example: id unused_fields: type: array description: Unused fields items: type: string description: '' example: unused_fields required: - id - unused_fields additionalProperties: false title: cartAddTrackstarTagWarehouseResponse HTTPError: properties: error: type: string id: type: string description: The ID of the item that wasn't found. required: - error type: object title: HTTPError ValidationError: properties: error: type: string detail: type: object properties: : type: object properties: : type: array items: type: string required: - error type: object title: ValidationError AddCartWarehousesTagsResponseDataSchema: type: object properties: id: type: string description: The unique ID of the warehouse. example: warehouse_id created_date: type: string format: date-time description: The date the warehouse was created. example: '2022-01-01T00:00:00Z' updated_date: type: string format: date-time description: The date the warehouse was last updated. example: '2022-01-02T05:05:05Z' name: type: string description: The name of the warehouse. example: Bethlehem (PA) code: type: - string - 'null' description: The warehouse code. example: ABE-1 address: $ref: '#/components/schemas/ShipFromAddress' trackstar_tags: type: - array - 'null' description: >- A list of custom tags associated with the resource. A tag can be either a string or a dictionary with one key-value pair. example: - tag1 - tag2 - tag3: value3 items: {} required: - address - code - created_date - id - name - trackstar_tags - updated_date additionalProperties: false title: AddCartWarehousesTagsResponseDataSchema ShipFromAddress: type: object properties: address1: type: - string - 'null' description: '' example: 123 Main St address2: type: - string - 'null' description: '' example: Apt 2 address3: type: - string - 'null' description: '' example: Floor 3 city: type: - string - 'null' description: '' example: New York state: type: - string - 'null' description: '' example: NY postal_code: type: - string - 'null' description: '' example: '10001' country: type: - string - 'null' description: '' example: United States required: - address1 - address2 - address3 - city - country - postal_code - state additionalProperties: false title: ShipFromAddress ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.