> ## Documentation Index > Fetch the complete documentation index at: https://newscatcherinc-docs.mintlify.site/docs/llms.txt > Use this file to discover all available pages before exploring further. # Add companies to dataset via CSV > Appends new companies to an existing dataset by uploading a CSV file. Uses the same CSV format as the dataset creation endpoint. The response omits `dataset_name` compared to the create-from-CSV endpoint since the dataset already exists. ## OpenAPI ````yaml catch-all-api post /catchAll/datasets/{dataset_id}/upload openapi: 3.1.0 info: title: NewsCatcher CatchAll API version: 1.6.4 description: > CatchAll is a web search API that generates unique datasets that don't exist anywhere else on the web. Built on NewsCatcher's proprietary real-world event index, it delivers state-of-the-art recall—finding all relevant events, not just top results. ### Authentication All endpoints except /health and /version require `x-api-key` header. If the key is invalid or missing, the API returns the `403 Forbidden` error. ### Job workflow 1. (Optional) Get suggestions via /catchAll/initialize 2. Submit a query via /catchAll/submit with optional date ranges and custom validators/enrichments 3. Poll /catchAll/status/{job_id} until completed (10-15 minutes) 4. Retrieve results via /catchAll/pull/{job_id} ### Monitor workflow 1. Create successful job via /catchAll/submit 2. Create monitor via /catchAll/monitors/create with schedule 3. Retrieve aggregated results via /catchAll/monitors/pull/{monitor_id} ### Webhook workflow 1. Create a webhook via `POST /catchAll/webhooks` 2. Attach it to a job or monitor via `POST /catchAll/webhooks/{webhook_id}/resources`, or pass `webhook_ids` at job or monitor creation time 3. Receive HTTP notifications at the configured URL when each job completes ### Company search workflow 1. Create a dataset via `POST /catchAll/datasets/` or `POST /catchAll/datasets/upload` 2. Wait for the dataset `latest_status` to reach `ready` 3. Submit a job with `connected_dataset_ids` pointing to your dataset 4. Retrieve results — each record includes a `connected_entities` array with relevance scores per matched company ### Important notes **Dynamic schemas**: Response schemas are generated dynamically by LLMs. Field names in the `enrichment` object may vary and are not deterministic across jobs unless explicitly specified. contact: name: NewsCatcher url: https://newscatcherapi.com email: support@newscatcherapi.com servers: - url: https://catchall.newscatcherapi.com description: Production server security: - ApiKeyAuth: [] tags: - name: Jobs description: Operations to create, monitor, and retrieve job results. externalDocs: description: Learn about job lifecycle and status tracking url: >- https://www.newscatcherapi.com/docs/web-search-api/get-started/quickstart - name: Monitors description: Operations to create, operate and retrieve monitor results. externalDocs: description: >- Automate recurring queries with scheduled jobs and webhook notifications. url: >- https://www.newscatcherapi.com/docs/web-search-api/guides-and-concepts/monitors - name: Webhooks description: > Operations to create and manage reusable webhook endpoints. A webhook is a named HTTP endpoint that receives a POST notification when a job or monitor completes. Create webhooks once at the organization level and attach them to any number of jobs or monitors via `webhook_ids`. Supports Slack, Microsoft Teams, and generic HTTP targets with configurable delivery modes, authentication, and headers. externalDocs: description: Learn about centralized webhooks and notification setup url: >- https://www.newscatcherapi.com/docs/web-search-api/guides-and-concepts/webhooks - name: Entities description: > Operations to create, update, and delete company entities. Entities are the building blocks of Company Watchlist. Each entity represents a company (or person) you want to track. Add identifying information such as domain, alternative names, and key persons to improve matching quality. externalDocs: description: Learn about Company Watchlist and entities url: >- https://www.newscatcherapi.com/docs/web-search-api/guides-and-concepts/company-search - name: Datasets description: > Operations to create and manage datasets of entities. A dataset is a named collection of entities — think of it as a watchlist or portfolio. Connect a dataset to a job via `connected_dataset_ids` to activate Company Watchlist. Datasets can be reused across multiple jobs and monitors. externalDocs: description: Learn about datasets and Company Watchlist url: >- https://www.newscatcherapi.com/docs/web-search-api/guides-and-concepts/company-search - name: Projects description: | Operations to create, organize, and manage projects. A project is a named container for jobs, monitors, and datasets. Group related resources by use case, team, or client, and share them with teammates. Resources can be assigned at creation time or post-hoc. externalDocs: description: Learn about projects and resource organization url: >- https://www.newscatcherapi.com/docs/web-search-api/guides-and-concepts/projects - name: Meta description: Operations to check API health and version. externalDocs: description: Find out more about NewsCatcher CatchAll API url: https://www.newscatcherapi.com/docs/web-search-api/get-started/introduction paths: /catchAll/datasets/{dataset_id}/upload: post: tags: - Datasets summary: Add companies to dataset via CSV description: > Appends new companies to an existing dataset by uploading a CSV file. Uses the same CSV format as the dataset creation endpoint. The response omits `dataset_name` compared to the create-from-CSV endpoint since the dataset already exists. operationId: uploadCSVToDataset parameters: - $ref: '#/components/parameters/DatasetId' requestBody: required: true content: multipart/form-data: schema: type: object required: - file properties: file: type: string format: binary description: The CSV file to upload. responses: '200': $ref: '#/components/responses/UploadCsvToDatasetResponse' '403': $ref: '#/components/responses/ForbiddenError' '404': $ref: '#/components/responses/NotFoundError' '422': $ref: '#/components/responses/ValidationError' components: parameters: DatasetId: name: dataset_id in: path required: true description: Unique dataset identifier. schema: type: string format: uuid example: ccabb755-afc2-4047-b84c-78d1f23d49b2 responses: UploadCsvToDatasetResponse: description: Companies added to dataset from CSV successfully. content: application/json: schema: $ref: '#/components/schemas/UploadCsvToDatasetResponse' example: dataset_id: ccabb755-afc2-4047-b84c-78d1f23d49b2 entities_created: 3 validation_report: total_rows: 3 valid_rows: 3 skipped_count: 0 skipped_rows: [] ForbiddenError: description: Invalid or missing API key content: application/json: schema: $ref: '#/components/schemas/Error' NotFoundError: description: Job/monitor not found or results not available content: application/json: schema: $ref: '#/components/schemas/Error' ValidationError: description: Validation error content: application/json: schema: $ref: '#/components/schemas/ValidationErrorResponse' schemas: UploadCsvToDatasetResponse: type: object required: - dataset_id - entities_created - validation_report properties: dataset_id: type: string format: uuid description: ID of the dataset that was updated. example: ccabb755-afc2-4047-b84c-78d1f23d49b2 entities_created: type: integer description: Number of new entities created from the CSV. example: 3 validation_report: $ref: '#/components/schemas/ValidationReport' Error: type: object properties: detail: type: string description: Error message. example: Invalid API key ValidationErrorResponse: type: object properties: detail: type: array items: $ref: '#/components/schemas/ValidationErrorDetail' ValidationReport: type: object required: - total_rows - valid_rows - skipped_count - skipped_rows description: Summary of CSV processing results. properties: total_rows: type: integer description: | Total number of data rows in the uploaded CSV (excluding the header row). example: 4 valid_rows: type: integer description: Number of rows successfully processed into entities. example: 3 skipped_count: type: integer description: Number of rows skipped due to validation errors. example: 1 skipped_rows: type: array items: $ref: '#/components/schemas/SkippedRow' description: Details for each skipped row. ValidationErrorDetail: type: object properties: loc: type: array items: oneOf: - type: string - type: integer description: Location of the validation error msg: type: string description: Error message type: type: string description: Error type SkippedRow: type: object required: - row - reason description: Details about a CSV row that was skipped during processing. properties: row: type: integer description: | 1-based row number in the CSV file (including the header row). A value of `3` means the third line of the file (second data row). example: 3 reason: type: string description: Human-readable explanation of why the row was skipped. example: 'missing required field: name' securitySchemes: ApiKeyAuth: type: apiKey in: header name: x-api-key description: API key for authentication. ````