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

# Screen companies by fundamentals, ratios, sector, and industry



## OpenAPI

````yaml GET /equity-screener
openapi: 3.1.0
info:
  title: Financial Data API
  version: 0.1.0
  description: Raw-first, derived-ready financial data infrastructure API.
servers:
  - url: https://api.financialdatapi.com
security:
  - apiKey: []
  - bearerApiKey: []
paths:
  /equity-screener:
    get:
      summary: Screen companies by fundamentals, ratios, sector, and industry
      parameters:
        - name: filter
          in: query
          schema:
            type: string
            description: >-
              Required. Comma-separated field:operator:value clauses, AND-ed.
              e.g. sector:eq:Information Technology,trailing_pe_ratio:lt:25.
              Numeric operators: gt, lt, gte, lte, eq, in ('in' takes
              pipe-separated values); string fields (sector, industry) take
              eq/in with case-insensitive text values. Companies missing a value
              for a filtered field are excluded by that filter. Fields from
              /equity-screener/filters.
        - name: sort
          in: query
          schema:
            type: string
            default: ticker
            description: >-
              Any screenable field, plus ticker and name. Companies missing the
              sort value sort last.
        - name: order
          in: query
          schema:
            type: string
            enum:
              - asc
              - desc
            default: asc
        - name: limit
          in: query
          schema:
            type: integer
            minimum: 1
            maximum: 200
            default: 50
        - name: cursor
          in: query
          schema:
            type: string
            description: >-
              Opaque cursor from meta.pagination.next_cursor. meta.pagination
              also carries `total`, the full number of matches, so a truncated
              screen is always visible as such.
      responses:
        '200':
          description: >-
            Companies in the scored S&P 500 ∪ Nasdaq-100 universe whose
            sector/industry, market cap, trailing valuation multiples, ratio
            snapshots, and equity analytics satisfy all filters
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ListEnvelope'
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '403':
          $ref: '#/components/responses/Forbidden'
components:
  schemas:
    ListEnvelope:
      type: object
      required:
        - data
        - meta
        - requestId
      properties:
        data:
          type: array
          items: {}
        meta:
          type: object
          properties:
            request_id:
              type: string
            requestId:
              type: string
            api_version:
              type: string
              const: v1
            pagination:
              $ref: '#/components/schemas/PaginationMeta'
        requestId:
          type: string
    PaginationMeta:
      type: object
      properties:
        limit:
          type: integer
        cursor:
          type:
            - string
            - 'null'
        next_cursor:
          type:
            - string
            - 'null'
        has_more:
          type: boolean
    ErrorEnvelope:
      type: object
      required:
        - error
        - requestId
      properties:
        error:
          type: object
          required:
            - code
            - message
            - request_id
            - requestId
          properties:
            code:
              type: string
            message:
              type: string
            request_id:
              type: string
            requestId:
              type: string
            details: {}
        requestId:
          type: string
  responses:
    BadRequest:
      description: Invalid request
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
    Unauthorized:
      description: Missing or invalid API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
    Forbidden:
      description: API key lacks required scope
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorEnvelope'
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: x-api-key
    bearerApiKey:
      type: http
      scheme: bearer

````