> ## Documentation Index
> Fetch the complete documentation index at: https://docs.penelope.health/llms.txt
> Use this file to discover all available pages before exploring further.

# List Payers

> List insurance payers with optional LOB filtering.

Returns payers that offer at least one LOB of the specified categories.
By default, returns all payers.



## OpenAPI

````yaml /api-reference/openapi.json get /v1/payers
openapi: 3.1.0
info:
  title: Penelope Health API
  description: REST API for querying the Penelope Health knowledge graph.
  version: 1.0.0
servers:
  - url: https://api-sandbox.penelope.health
    description: Sandbox
  - url: https://api.penelope.health
    description: Production
security: []
paths:
  /v1/payers:
    get:
      summary: List Payers
      description: |-
        List insurance payers with optional LOB filtering.

        Returns payers that offer at least one LOB of the specified categories.
        By default, returns all payers.
      operationId: list_payers_v1_payers_get
      parameters:
        - name: limit
          in: query
          required: false
          schema:
            type: integer
            maximum: 100
            minimum: 1
            description: Maximum number of results to return
            examples:
              - 10
            default: 20
            title: Limit
          description: Maximum number of results to return
        - name: offset
          in: query
          required: false
          schema:
            type: integer
            minimum: 0
            title: Offset
            description: Number of results to skip for pagination
            default: 0
            examples:
              - 0
          description: Number of results to skip for pagination
        - name: lobs
          in: query
          required: false
          schema:
            anyOf:
              - items:
                  $ref: '#/components/schemas/LobCategory'
                type: array
              - type: 'null'
            description: Filter by LOB categories
            examples:
              - - commercial
            title: Lobs
          description: Filter by LOB categories
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PaginatedResponse_InsurancePayerResponse_'
              example:
                data:
                  - payer_id: AOQAR
                    display_name: Anthem Blue Cross Blue Shield of Indiana
                  - payer_id: BHNXS
                    display_name: Anthem Blue Cross Blue Shield Ohio
                  - payer_id: DBFST
                    display_name: Blue Cross and Blue Shield of Montana
                  - payer_id: DGOYK
                    display_name: Anthem Blue Cross and Blue Shield Virginia
                  - payer_id: DRWRY
                    display_name: Anthem Blue Cross Blue Shield of Connecticut
                  - payer_id: DTQAZ
                    display_name: Blue Cross and Blue Shield of Illinois
                  - payer_id: DXTYZ
                    display_name: Anthem BlueCross BlueShield Kentucky
                  - payer_id: ERSOT
                    display_name: Anthem Blue Cross and Blue Shield Nevada
                  - payer_id: EZKYS
                    display_name: BlueCross BlueShield of Tennessee
                  - payer_id: HGJLR
                    display_name: Cigna
                limit: 10
                offset: 0
                has_more: true
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security:
        - APIKeyHeader: []
components:
  schemas:
    LobCategory:
      type: string
      enum:
        - commercial
        - medicare_part_a
        - medicare_part_b
        - medicare_advantage
        - medicare_part_d
        - medicaid
        - individual_aca
      title: LobCategory
      description: Line-of-business categories.
    PaginatedResponse_InsurancePayerResponse_:
      properties:
        data:
          items:
            $ref: '#/components/schemas/InsurancePayerResponse'
          type: array
          title: Data
          description: Array of result objects
        limit:
          type: integer
          title: Limit
          description: Maximum number of results requested
          examples:
            - 20
        offset:
          type: integer
          title: Offset
          description: Number of results skipped for pagination
          examples:
            - 0
        has_more:
          type: boolean
          title: Has More
          description: True if more results exist beyond this page
          examples:
            - false
      type: object
      required:
        - data
        - limit
        - offset
        - has_more
      title: PaginatedResponse[InsurancePayerResponse]
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    InsurancePayerResponse:
      properties:
        payer_id:
          type: string
          title: Payer Id
          description: Unique Stedi payer ID (see https://www.stedi.com/healthcare/network)
          examples:
            - KMQTZ
            - HPQRS
        display_name:
          type: string
          title: Display Name
          description: Human-readable payer name
          examples:
            - UnitedHealthcare
            - Aetna
      type: object
      required:
        - payer_id
        - display_name
      title: InsurancePayerResponse
      description: Insurance payer response model for /payers endpoint.
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
  securitySchemes:
    APIKeyHeader:
      type: apiKey
      in: header
      name: x-api-key

````