6sense

6sense Company Identification API

Identify a company from a visitor IP address and return firmographics, product-level intent scoring, buying stage, profile fit, 6QA flag, and segment membership. Powers 6sense's web deanonymization use case.

6sense Company Identification API is one of 6 APIs that 6sense publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

This API exposes 1 machine-runnable capability that can be deployed as REST, MCP, or Agent Skill surfaces via Naftiko and 2 JSON Schema definitions.

Tagged areas include ABM, Intent, Web Deanonymization, and B2B. The published artifact set on APIs.io includes API documentation, an OpenAPI specification, a JSON-LD context, 1 Naftiko capability spec, and 2 JSON Schemas.

Documentation GitHub OpenAPI

OpenAPI Specification

openapi: 3.0.3
info:
  title: 6sense Company Identification API
  version: '3'
  description: |
    Identifies anonymous website visitors by IP address, returning company firmographics,
    product-level intent scores, buying stage, profile fit, and segment membership.
  contact:
    name: 6sense API Support
    url: https://api.6sense.com/docs/
servers:
- url: https://epsilon.6sense.com
  description: 6sense Epsilon Production
security:
- TokenAuth: []
paths:
  /v3/company/details:
    get:
      summary: Get Company Details By IP
      description: Identify a company from an IP address. Returns firmographics, scoring, buying stage, profile fit, and segment membership.
      operationId: getCompanyDetails
      parameters:
      - name: ip
        in: query
        description: Visitor IP address (IPv4 or IPv6).
        required: true
        schema:
          type: string
      - name: EpsilonCookie
        in: header
        description: 6sense visitor tracking cookie.
        required: false
        schema:
          type: string
      - name: X-6s-CustomID
        in: header
        description: Custom client-supplied identifier for tracking.
        required: false
        schema:
          type: string
      responses:
        '200':
          description: Company identified.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CompanyDetailsResponse'
        '401':
          description: Unauthorized.
        '404':
          description: No company match.
        '429':
          description: Rate limit exceeded.
components:
  securitySchemes:
    TokenAuth:
      type: apiKey
      in: header
      name: Authorization
      description: 'Token-based auth. Format: `Token <api_token>`.'
  schemas:
    CompanyDetailsResponse:
      type: object
      properties:
        company:
          $ref: '#/components/schemas/Company'
        scores:
          type: array
          items:
            $ref: '#/components/schemas/ProductScore'
        segments:
          $ref: '#/components/schemas/Segments'
        confidence:
          type: string
          enum: [Very High, High, Moderate, Low]
    Company:
      type: object
      properties:
        company_match:
          type: string
          enum: [Match, Non-actionable Match, No Match]
        additional_comment:
          type: string
        companyId:
          type: string
        domain:
          type: string
        name:
          type: string
        region:
          type: string
        country:
          type: string
        country_iso_code:
          type: string
        state:
          type: string
        state_code:
          type: string
        city:
          type: string
        address:
          type: string
        zip:
          type: string
        phone:
          type: string
        industry:
          type: string
        industry_v2:
          type: array
          items:
            type: object
            properties:
              industry:
                type: string
              subindustry:
                type: string
        employee_range:
          type: string
        employee_count:
          type: integer
        revenue_range:
          type: string
        annual_revenue:
          type: number
        is_blacklisted:
          type: boolean
        is_6qa:
          type: boolean
        geoIP_country:
          type: string
        geoIP_state:
          type: string
        geoIP_city:
          type: string
        sic:
          type: string
        sic_description:
          type: string
        naics:
          type: string
        naics_description:
          type: string
    ProductScore:
      type: object
      properties:
        product:
          type: string
        product_display_name:
          type: string
        is_6qa:
          type: boolean
        intent_score:
          type: integer
        buying_stage:
          type: string
          enum: [Purchase, Decision, Consideration, Awareness, Target]
        profile_score:
          type: integer
        profile_fit:
          type: string
          enum: [Strong, Moderate, Weak]
    Segments:
      type: object
      properties:
        ids:
          type: array
          items:
            type: integer
        names:
          type: array
          items:
            type: string
        list:
          type: array
          items:
            type: object
            properties:
              id:
                type: integer
              name:
                type: string

6sense Company Identification API

Documentation

Specifications

Schemas & Data

Other Resources

OpenAPI Specification