> ## Documentation Index > Fetch the complete documentation index at: https://docs.canary.effectiveai.app/llms.txt > Use this file to discover all available pages before exploring further. # List an employer’s sites > List the workplaces matched to an employer, ordered by state, city and ID. Each site lists its identifiers: FEINs and OSHA establishment IDs, since OSHA can issue a new establishment ID for the same workplace. Read one with GET /insurance/employers/{employerId}/sites/{siteId}. Needs the OSHA dataset enabled for your organization. Read-only; private, no-store. ## OpenAPI ````yaml /openapi.json get /insurance/employers/{employerId}/sites openapi: 3.0.3 info: title: Effective API version: 2.0.0 description: The public Effective REST API. Authenticate using an Effective API key. servers: - url: https://api.canary.effectiveai.app/api/v2 description: Canary security: - bearerAuth: [] paths: /insurance/employers/{employerId}/sites: get: tags: - OSHA summary: List an employer’s sites description: >- List the workplaces matched to an employer, ordered by state, city and ID. Each site lists its identifiers: FEINs and OSHA establishment IDs, since OSHA can issue a new establishment ID for the same workplace. Read one with GET /insurance/employers/{employerId}/sites/{siteId}. Needs the OSHA dataset enabled for your organization. Read-only; private, no-store. operationId: listEmployerSites parameters: - schema: type: string pattern: ^emp_[0-9a-f]{20}$ description: 'Effective employer ID: emp_ followed by 20 hex characters.' required: true description: 'Effective employer ID: emp_ followed by 20 hex characters.' name: employerId in: path - schema: type: string pattern: ^[A-Za-z]{2}$ description: Two-letter state code, such as FL. required: false description: Two-letter state code, such as FL. name: state in: query - schema: type: integer minimum: 1 maximum: 100 default: 25 description: Maximum number of items to return (1-100). required: false description: Maximum number of items to return (1-100). name: limit in: query - schema: type: string minLength: 1 maxLength: 8192 description: >- Opaque nextCursor from this operation. Repeat every other query parameter unchanged; a cursor from a different query returns invalid_cursor. required: false description: >- Opaque nextCursor from this operation. Repeat every other query parameter unchanged; a cursor from a different query returns invalid_cursor. name: cursor in: query responses: '200': description: One page of sites. content: application/json: schema: $ref: '#/components/schemas/V2EmployerSites' '400': description: >- invalid_request for invalid, unknown or repeated inputs; invalid_cursor means restart the list. content: application/json: schema: $ref: '#/components/schemas/V2CodedError' '401': description: Authentication required. content: application/json: schema: $ref: '#/components/schemas/V2CodedError' '403': description: >- dataset_not_enabled: the OSHA dataset is not enabled for this organization. Other credential restrictions use forbidden. content: application/json: schema: $ref: '#/components/schemas/V2CodedError' '404': description: 'not_found: no such employer, site or OSHA row.' content: application/json: schema: $ref: '#/components/schemas/V2CodedError' '500': description: Unexpected server failure. content: application/json: schema: $ref: '#/components/schemas/V2CodedError' '503': description: A dependency is unavailable; respect Retry-After. content: application/json: schema: $ref: '#/components/schemas/V2CodedError' security: - bearerAuth: [] components: schemas: V2EmployerSites: type: object properties: sites: type: array items: $ref: '#/components/schemas/V2EmployerSite' nextCursor: type: string nullable: true description: Cursor for the next page, or null on the last page. required: - sites - nextCursor V2CodedError: allOf: - $ref: '#/components/schemas/V2Error' - type: object properties: code: type: string minLength: 1 description: Stable error code. Clients must tolerate unknown future codes. details: type: array items: type: object properties: location: type: string enum: - path - query - header - body path: type: array items: type: string maxLength: 64 maxItems: 12 code: type: string enum: - required - invalid_type - invalid_value - unknown_field message: type: string minLength: 1 maxLength: 200 required: - location - path - code - message minItems: 1 maxItems: 20 description: Bounded safe validation issues; may omit some invalid fields. requestId: type: string minLength: 1 maxLength: 128 description: >- Existing server correlation for this HTTP attempt, when available. dataset: type: string enum: - naic - osha description: Dataset needed for dataset_not_enabled. accessUrl: type: string nullable: true format: uri description: >- Where to add the product to your account, for product_access_required. required: - code V2EmployerSite: type: object properties: id: type: string pattern: ^site_[0-9a-f]{20}$ description: 'Effective site ID: site_ followed by 20 hex characters.' employerId: type: string pattern: ^emp_[0-9a-f]{20}$ description: 'Effective employer ID: emp_ followed by 20 hex characters.' name: type: string description: Most recent name OSHA has on file at this site. address: type: string nullable: true city: type: string nullable: true state: type: string nullable: true zip: type: string nullable: true description: Five-digit ZIP code. naics: type: string nullable: true identifiers: type: array items: type: object properties: type: type: string enum: - fein - osha_establishment description: >- fein: FEIN from a Form 300A at this site. osha_establishment: OSHA ITA establishment ID. OSHA can issue a new establishment ID for the same workplace, so a site can carry several. value: type: string required: - type - value latestHeadcount: type: number nullable: true description: >- Annual average employees from the site’s latest Form 300A, or null if none. firstSeen: type: string nullable: true description: Earliest OSHA event date at this site. lastSeen: type: string nullable: true description: Latest OSHA event date at this site. required: - id - employerId - name - address - city - state - zip - naics - identifiers - latestHeadcount - firstSeen - lastSeen V2Error: type: object properties: error: type: string minLength: 1 description: Human-readable explanation of the failure. required: - error securitySchemes: bearerAuth: type: http scheme: bearer description: 'Effective API key. Send Authorization: Bearer sk-eai-...' ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.