> ## Documentation Index > Fetch the complete documentation index at: https://docs.dialtu.com/llms.txt > Use this file to discover all available pages before exploring further. # Add clients to a pipeline > Add one or more existing clients to a stage of the pipeline. Clients that are already active on the pipeline are skipped and counted in `skipped_count`. ## OpenAPI ````yaml POST /api/v2/public/salesflow/pipelines/{pipeline_id}/clients/add openapi: 3.1.0 info: title: Dialtu Public API version: '2.0' description: >- Programmatic access to your Dialtu account: schedule AI voice calls, create contacts, push leads into Salesflow pipelines, book calendar appointments and read WhatsApp conversation history. Every request is authenticated with an API key created in the dashboard under **Settings → API Keys**, sent as `Authorization: Bearer pk_...`. servers: - url: https://api.dialtu.com description: Production - url: https://api.stg.dialtu.com description: Staging security: - ApiKeyBearer: [] tags: - name: Calls description: Schedule outbound AI voice calls. - name: Clients description: Create contacts in your account. - name: Salesflow description: Push leads into a pipeline through an API input node. - name: Salesflow pipelines description: Read a pipeline's stages and add, move or remove clients. - name: Calendar description: Check bookable capacity, book appointments and manage waiting lists. - name: WhatsApp description: Read-only conversation history and transcripts. paths: /api/v2/public/salesflow/pipelines/{pipeline_id}/clients/add: post: tags: - Salesflow pipelines summary: Add clients to a pipeline description: >- Add one or more existing clients to a stage of the pipeline. Clients that are already active on the pipeline are skipped and counted in `skipped_count`. operationId: addPipelineClients parameters: - in: path name: pipeline_id schema: description: >- ID of the pipeline. Shown in the Salesflow editor URL and in the pipeline settings. title: Pipeline Id type: integer required: true description: >- ID of the pipeline. Shown in the Salesflow editor URL and in the pipeline settings. requestBody: content: application/json: schema: $ref: '#/components/schemas/PublicAddClientsToPipelineSchema' required: true responses: '201': description: Created content: application/json: schema: $ref: '#/components/schemas/PublicPipelineOperationResponse' '400': description: Bad Request content: application/json: schema: $ref: '#/components/schemas/PublicPipelineErrorResponse' '401': description: Missing, malformed or revoked API key. content: application/json: schema: $ref: '#/components/schemas/DetailErrorResponse' examples: missing_header: summary: No Authorization header value: detail: Unauthorized invalid_key: summary: Unknown or revoked key value: detail: Invalid or expired API key. Please check your credentials. '422': description: The request did not match the documented schema. content: application/json: schema: $ref: '#/components/schemas/RequestValidationError' example: detail: - type: missing loc: - body - payload - phone_number msg: Field required '500': description: Internal Server Error content: application/json: schema: $ref: '#/components/schemas/PublicPipelineErrorResponse' security: - ApiKeyBearer: [] components: schemas: PublicAddClientsToPipelineSchema: description: Add clients to a pipeline stage. properties: client_ids: description: IDs of existing clients to add. items: type: integer title: Client Ids type: array stage_id: description: Stage to place them in (see *List stages in a pipeline*). title: Stage Id type: integer required: - client_ids - stage_id title: PublicAddClientsToPipelineSchema type: object PublicPipelineOperationResponse: description: Response for pipeline add/remove/move operations. properties: status: const: success description: Response status title: Status type: string message: description: Human-readable message title: Message type: string success_count: default: 0 description: Clients processed successfully. title: Success Count type: integer skipped_count: default: 0 description: Clients skipped (already on the pipeline, or not found on it). title: Skipped Count type: integer required: - status - message title: PublicPipelineOperationResponse type: object PublicPipelineErrorResponse: description: Error response for pipeline operations. properties: status: const: error description: Error status title: Status type: string error_code: description: Machine-readable error code title: Error Code type: string message: description: Human-readable error message title: Message type: string required: - status - error_code - message title: PublicPipelineErrorResponse type: object DetailErrorResponse: description: 'Plain error body: `{"detail": "..."}`. No `error_code` is included.' properties: detail: description: Human-readable reason for the failure. title: Detail type: string required: - detail title: DetailErrorResponse type: object RequestValidationError: title: RequestValidationError type: object description: >- Returned when the request body, query string or path could not be parsed against the documented schema. Fix the listed fields and retry. properties: detail: type: array title: Detail description: One entry per invalid field. items: $ref: '#/components/schemas/RequestValidationErrorItem' required: - detail RequestValidationErrorItem: title: RequestValidationErrorItem type: object properties: loc: type: array title: Loc description: >- Where the problem is: the first element is `body`, `query` or `path`, followed by the field path. items: anyOf: - type: string - type: integer msg: type: string title: Msg description: What is wrong with the value. type: type: string title: Type description: >- Machine-readable validation error type, e.g. `missing` or `int_parsing`. required: - loc - msg - type securitySchemes: ApiKeyBearer: type: http scheme: bearer bearerFormat: pk_... description: >- API key created in the dashboard under **Settings → API Keys**. Send it as `Authorization: Bearer pk_...`. ````