> ## Documentation Index > Fetch the complete documentation index at: https://docs.sixtyfour.ai/llms.txt > Use this file to discover all available pages before exploring further. # Create Exclusion List Endpoint > Create an exclusion list (asynchronous materialization). Lists are immutable in v1: to change one, create a new list and delete the old. Up to 20 active lists per organization (40 for organizations with extended exclusion limits). ## OpenAPI ````yaml https://api.sixtyfour.ai/openapi.json post /search/exclusion-lists openapi: 3.1.0 info: title: Sixtyfour API description: >- Intelligence API for People and Entities. Deploy AI agents that investigate, resolve identities, map relationships, and surface risk signals contact: name: Sixtyfour url: https://sixtyfour.ai/ email: support@sixtyfour.ai license: name: Proprietary version: 1.0.0 servers: - url: https://api.sixtyfour.ai description: Production security: [] tags: - name: Enrichment description: Find and enrich emails, phones, and LinkedIn for people and companies. - name: org-chart description: Discover people inside a company and build org charts. - name: Search description: Run deep and filter searches over Sixtyfour's data. - name: Workflow description: Create, run, and manage enrichment workflows. - name: Workflow Schedules description: Create and manage recurring schedules for workflows. - name: Account description: Manage and inspect your account and credit balance. - name: Intelligence description: Verify identity attributes such as age using high-tier OSINT research. paths: /search/exclusion-lists: post: tags: - Search summary: Create Exclusion List Endpoint description: |- Create an exclusion list (asynchronous materialization). Lists are immutable in v1: to change one, create a new list and delete the old. Up to 20 active lists per organization (40 for organizations with extended exclusion limits). operationId: create_exclusion_list_endpoint_search_exclusion_lists_post parameters: - name: x-api-key in: header required: false schema: anyOf: - type: string - type: 'null' title: X-Api-Key requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/CreateExclusionListRequest' responses: '202': description: Successful Response content: application/json: schema: $ref: '#/components/schemas/CreateExclusionListResponse' '400': description: Request was rejected by the route's validation rules. content: application/json: schema: type: object properties: detail: type: string example: detail: Invalid request body '401': description: Missing or invalid API key. content: application/json: schema: type: object properties: detail: type: string example: detail: Invalid API key '403': description: Organization access is locked. content: application/json: schema: type: object properties: detail: type: string example: detail: >- This organization no longer has access to Sixtyfour. Contact your representative at Sixtyfour. '422': description: Request body failed validation. content: application/json: schema: $ref: '#/components/schemas/HTTPValidationError' '500': description: Unexpected server error. Retry with backoff. content: application/json: schema: type: object properties: detail: type: string example: detail: Internal server error components: schemas: CreateExclusionListRequest: properties: name: anyOf: - type: string maxLength: 120 minLength: 1 - type: 'null' title: Name description: >- Required unless source.type is 'search_id' (defaults to a date-stamped name). entity_type: type: string enum: - person - company title: Entity Type default: person source: oneOf: - $ref: '#/components/schemas/ResourceHandleSource' - $ref: '#/components/schemas/InlineEntityIdsSource' - $ref: '#/components/schemas/SearchIdSource' title: Source discriminator: propertyName: type mapping: entity_ids: $ref: '#/components/schemas/InlineEntityIdsSource' resource_handle: $ref: '#/components/schemas/ResourceHandleSource' search_id: $ref: '#/components/schemas/SearchIdSource' type: object required: - source title: CreateExclusionListRequest examples: - name: Existing customers source: id_column: linkedin_url resource_handle_id: 8f14e45f-... type: resource_handle - name: Do not contact source: entity_ids: - john-doe-123 type: entity_ids - entity_type: company name: Existing customer companies source: entity_ids: - '1441' - linkedin.com/company/openai - stripe.com type: entity_ids - source: max_results: 250000 search_id: a1b2c3d4-... type: search_id CreateExclusionListResponse: properties: id: type: string title: Id description: >- Exclusion list ID; poll GET /search/exclusion-lists/{id} until ready. status: type: string title: Status description: Initial status, always 'pending'. type: object required: - id - status title: CreateExclusionListResponse HTTPValidationError: title: HTTPValidationError type: object properties: detail: type: array items: $ref: '#/components/schemas/ValidationError' example: detail: - loc: - body - target_company - domain msg: Field required type: missing input: null ctx: {} ResourceHandleSource: properties: type: type: string const: resource_handle title: Type resource_handle_id: type: string title: Resource Handle Id id_column: anyOf: - type: string - type: 'null' title: Id Column description: >- CSV column containing entity identifiers. People: LinkedIn public IDs or profile URLs. Companies: numeric company IDs, LinkedIn company URLs/slugs, or exact website domains. Auto-detected when omitted. type: object required: - type - resource_handle_id title: ResourceHandleSource description: Build the list from an uploaded CSV (see POST /storage/csv/upload). InlineEntityIdsSource: properties: type: type: string const: entity_ids title: Type entity_ids: items: type: string type: array maxItems: 10000 minItems: 1 title: Entity Ids type: object required: - type - entity_ids title: InlineEntityIdsSource description: >- Build the list from inline identifiers (entity-generic). Person lists: LinkedIn public IDs or profile URLs. Company lists: numeric company IDs, LinkedIn company URLs/slugs, or exact website domains. SearchIdSource: properties: type: type: string const: search_id title: Type search_id: type: string title: Search Id max_results: type: integer maximum: 250000 minimum: 1 title: Max Results description: How many top search results to capture into the list. default: 250000 exclude_public_ids: anyOf: - items: type: string type: array maxItems: 1000 - type: 'null' title: Exclude Public Ids description: >- Optional people-mode inline exclusions to re-apply while replaying the saved search. `search_id` itself does not carry exclusions. exclude_entity_ids: anyOf: - items: type: string type: array maxItems: 1000 - type: 'null' title: Exclude Entity Ids description: >- Optional inline exclusions to re-apply while replaying the saved search. People: LinkedIn public IDs/profile URLs. Companies: numeric company IDs, company URLs/slugs, or exact website domains. exclude_list_ids: anyOf: - items: type: string type: array maxItems: 10 - type: 'null' title: Exclude List Ids description: >- Optional saved exclusion lists to re-apply while replaying the saved search. `search_id` itself does not carry exclusions. type: object required: - type - search_id title: SearchIdSource description: >- Build the list from the results of a saved search (mode must match entity_type). ValidationError: title: ValidationError type: object required: - loc - msg - type properties: loc: type: array items: oneOf: - type: string - type: integer description: Path to the field that failed validation. example: - body - target_company - domain msg: type: string description: Human-readable error message. example: Field required type: type: string description: Error code (e.g. 'missing', 'value_error'). example: missing input: description: The offending input value (any type, may be null). nullable: true example: null ctx: type: object description: Optional error context. additionalProperties: true example: {} ````