WhoisFreaks

WhoisFreaks WHOIS API

WHOIS lookup APIs (live, historical, reverse, bulk)

GitHub OpenAPI

Operations 4

GET /v2.0/whois/live Live WHOIS Lookup #
POST /v2.0/bulkwhois/live Bulk WHOIS Lookup #
GET /v2.0/whois/history Historical WHOIS records for a domain #
GET /v2.0/whois/reverse Reverse WHOIS lookup by keyword #

Documentation

📖
Documentation
https://whoisfreaks.com/documentation/whois-api
📖
APIReference
https://whoisfreaks.com/documentation

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/whoisfreaks/refs/heads/main/openapi/whoisfreaks-whois-api-openapi.yml

Other Resources

🔗
PostmanCollection
https://www.postman.com/wf-official/api
🔗
LLMSTxt
https://whoisfreaks.com/llms.txt

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/whoisfreaks-whois-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

whoisfreaks-whois-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: WhoisFreaks WHOIS API
  description: 'Complete WhoisFreaks API — WHOIS, DNS, SSL, Geolocation, Typosquatting,

    IP Intelligence, Domain Reputation, and bulk database downloads.


    ## Authentication

    All requests require an `apiKey` query parameter.


    ## Resources

    - Docs: https://whoisfreaks.com/documentation

    - Billing: https://billing.whoisfreaks.com

    - Support: support@whoisfreaks.com

    '
  version: 1.0.0
  contact:
    name: WhoisFreaks Support
    email: support@whoisfreaks.com
    url: https://whoisfreaks.com
  license:
    name: MIT
    url: https://opensource.org/licenses/MIT
servers:
- url: https://api.whoisfreaks.com
  description: API Solutions (live lookups)
- url: https://files.whoisfreaks.com
  description: Database file downloads
security:
- ApiKeyAuth: []
tags:
- name: WHOIS
  description: WHOIS lookup APIs (live, historical, reverse, bulk)
paths:
  /v2.0/whois/live:
    get:
      tags:
      - WHOIS
      summary: Live WHOIS Lookup
      description: Real-time WHOIS lookup from authoritative servers. Cost 1 credit.
      operationId: whoisLive
      parameters:
      - name: domainName
        in: query
        schema:
          type: string
        required: true
        example: whoisfreaks.com
      - $ref: '#/components/parameters/Format'
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WhoisResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
        '429':
          $ref: '#/components/responses/RateLimited'
  /v2.0/bulkwhois/live:
    post:
      tags:
      - WHOIS
      summary: Bulk WHOIS Lookup
      description: Up to 100 domains in one request. 1 credit per successful domain.
      operationId: bulkWhois
      parameters:
      - $ref: '#/components/parameters/Format'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - domainNames
              properties:
                domainNames:
                  type: array
                  items:
                    type: string
                  maxItems: 100
              example:
                domainNames:
                - whoisfreaks.com
                - jfreaks.com
      responses:
        '200':
          description: Successful response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/BulkWhoisResponse'
        4XX:
          $ref: '#/components/responses/ErrorResponse'
  /v2.0/whois/history:
    get:
      tags:
      - WHOIS
      operationId: whoisHistory
      summary: Historical WHOIS records for a domain
      parameters:
      - name: domainName
        in: query
        required: true
        schema:
          type: string
        description: Domain to fetch historical WHOIS records for
      - name: page
        in: query
        required: false
        schema:
          type: integer
        description: Page number
      - name: format
        in: query
        required: false
        schema:
          type: string
          enum:
          - json
          - xml
      responses:
        '200':
          description: Historical WHOIS records
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/WhoisHistoricalResponse'
  /v2.0/whois/reverse:
    get:
      tags:
      - WHOIS
      operationId: whoisReverse
      summary: Reverse WHOIS lookup by keyword
      parameters:
      - name: keyword
        in: query
        required: true
        schema:
          type: string
        description: Keyword to search across WHOIS records
      - name: page
        in: query
        required: false
        schema:
          type: integer
        description: Page number
      - name: format
        in: query
        required: false
        schema:
          type: string
          enum:
          - json
          - xml
      responses:
        '200':
          description: Reverse WHOIS results (paginated)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ReverseWhoisResponse'
components:
  schemas:
    EligibilityInfo:
      type: object
      properties:
        id:
          type: string
        name:
          type: string
        type:
          type: string
      additionalProperties: true
    WhoisHistoricalResponse:
      type: object
      properties:
        status:
          type: boolean
        whois:
          type: string
        total_records:
          type: string
        whois_domains_historical:
          type: array
          items:
            $ref: '#/components/schemas/WhoisHistoricalItem'
      additionalProperties: true
    ErrorResponse:
      type: object
      properties:
        timestamp:
          type: string
        path:
          type: string
        status: {}
        error:
          type: string
        message:
          type: string
        code:
          type: integer
      additionalProperties: true
      description: Error response. `status` may be an integer (e.g. 401), boolean, or string depending on the endpoint, so it is intentionally untyped to avoid deserialization failures.
    ReverseWhoisResponse:
      type: object
      properties:
        Total_Result:
          type: integer
        Total_Pages:
          type: integer
        Current_Page:
          type: integer
        whois_domains_historical:
          type: array
          items:
            $ref: '#/components/schemas/WhoisHistoricalItem'
      additionalProperties: true
      description: Reverse WHOIS response. Pagination keys are capitalized (Total_Result/Total_Pages/Current_Page) as returned by the API.
    WhoisResponse:
      type: object
      properties:
        status:
          type: boolean
        domain_name:
          type: string
        query_time:
          type: string
        whois_server:
          type: string
        domain_registered:
          type: string
        secure_dns:
          type: boolean
        domain_handle:
          type: string
        create_date:
          type: string
        update_date:
          type: string
        expiry_date:
          type: string
        domain_registrar:
          $ref: '#/components/schemas/RegistrarInformation'
        reseller_contact:
          $ref: '#/components/schemas/ResellerContact'
        registrant_contact:
          $ref: '#/components/schemas/PersonalInformation'
        administrative_contact:
          $ref: '#/components/schemas/PersonalInformation'
        technical_contact:
          $ref: '#/components/schemas/PersonalInformation'
        billing_contact:
          $ref: '#/components/schemas/PersonalInformation'
        eligibility_info:
          $ref: '#/components/schemas/EligibilityInfo'
        abuse_contact:
          $ref: '#/components/schemas/RegistrarInformation'
        name_servers:
          type: array
          items:
            type: string
        domain_status:
          type: array
          items:
            type: string
        whois_raw_domain:
          type: string
        registry_data:
          $ref: '#/components/schemas/RegistryData'
      additionalProperties: true
      description: Live WHOIS lookup response (DomainInfo).
    RegistrarInformation:
      type: object
      properties:
        id:
          type: string
        id_type:
          type: string
        iana_id:
          type: string
        registry_id:
          type: string
        handle:
          type: string
        status:
          type: string
        registrar_name:
          type: string
        normalized_name:
          type: string
        whois_server:
          type: string
        rdap_server:
          type: string
        website_url:
          type: string
        email_address:
          type: string
        phone_number:
          type: string
        authoritative_registry_name:
          type: string
        organization_number:
          type: string
        is_sponsor:
          type: boolean
      additionalProperties: true
      description: Registrar details (used by domain_registrar, abuse_contact).
    BulkWhoisResponse:
      type: object
      properties:
        bulk_whois_response:
          type: array
          items:
            $ref: '#/components/schemas/BulkWhoisItem'
      additionalProperties: true
    RegistryData:
      type: object
      properties:
        domain_name:
          type: string
        query_time:
          type: string
        whois_server:
          type: string
        domain_registered:
          type: string
        create_date:
          type: string
        update_date:
          type: string
        expiry_date:
          type: string
        domain_registrar:
          $ref: '#/components/schemas/RegistrarInformation'
        name_servers:
          type: array
          items:
            type: string
        domain_status:
          type: array
          items:
            type: string
        whois_raw_domain:
          type: string
      additionalProperties: true
    ResellerContact:
      type: object
      properties:
        name:
          type: string
        email_address:
          type: string
        phone:
          type: string
      additionalProperties: true
    WhoisHistoricalItem:
      type: object
      properties:
        num:
          type: integer
        status:
          type: boolean
        domain_name:
          type: string
        query_time:
          type: string
        whois_server:
          type: string
        domain_registered:
          type: string
        secure_dns:
          type: boolean
        domain_handle:
          type: string
        create_date:
          type: string
        update_date:
          type: string
        expiry_date:
          type: string
        domain_registrar:
          $ref: '#/components/schemas/RegistrarInformation'
        reseller_contact:
          $ref: '#/components/schemas/ResellerContact'
        registrant_contact:
          $ref: '#/components/schemas/PersonalInformation'
        administrative_contact:
          $ref: '#/components/schemas/PersonalInformation'
        technical_contact:
          $ref: '#/components/schemas/PersonalInformation'
        billing_contact:
          $ref: '#/components/schemas/PersonalInformation'
        eligibility_info:
          $ref: '#/components/schemas/EligibilityInfo'
        abuse_contact:
          $ref: '#/components/schemas/RegistrarInformation'
        name_servers:
          type: array
          items:
            type: string
        domain_status:
          type: array
          items:
            type: string
        whois_raw_domain:
          type: string
        registry_data:
          $ref: '#/components/schemas/RegistryData'
      additionalProperties: true
    PersonalInformation:
      type: object
      properties:
        id:
          type: string
        id_type:
          type: string
        handle:
          type: string
        name:
          type: string
        company:
          type: string
        street:
          type: string
        city:
          type: string
        state:
          type: string
        zip_code:
          type: string
        country_name:
          type: string
        country_code:
          type: string
        email_address:
          type: string
        phone:
          type: string
        fax:
          type: string
        mailing_address:
          type: string
      additionalProperties: true
      description: Contact block (registrant/administrative/technical/billing).
    BulkWhoisItem:
      type: object
      properties:
        status:
          type: boolean
        domain_name:
          type: string
        error:
          type: string
      additionalProperties: true
      description: One bulk WHOIS result; success items also carry all WhoisResponse fields.
  responses:
    NotFound:
      description: Not found
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    RateLimited:
      description: Too many requests
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    ErrorResponse:
      description: Error response (4XX)
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
    Unauthorized:
      description: Invalid API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  parameters:
    Format:
      name: format
      in: query
      schema:
        type: string
        enum:
        - json
        - xml
        default: json
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: query
      name: apiKey