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

# Check Domain Availability

> Check if a domain is available for registration.

Returns availability status and pricing if available.



## OpenAPI

````yaml GET /api/v1/registrar/availability/{domain}
openapi: 3.1.0
info:
  title: Dotlet API
  description: >-
    The Dotlet API lets you search, register, and manage domains, configure DNS
    records, and embed domain purchasing flows in your own product.


    All endpoints are authenticated with an API key or bearer token, and all
    request and response bodies are JSON.
  version: 0.1.1
  contact:
    name: Dotlet Support
    url: https://dotlet.net/support
    email: support@dotlet.net
servers:
  - url: https://api.dotlet.net
    description: Production
security: []
tags:
  - name: Domains
    description: Search, price, register, renew, and manage domains.
  - name: Orders
    description: Create and track domain orders separately from immediate purchases.
  - name: DNS
    description: Manage DNS records for domains hosted with Dotlet.
  - name: Hosted Sessions
    description: Create embeddable, scoped sessions for end users in your own product.
paths:
  /api/v1/registrar/availability/{domain}:
    get:
      tags:
        - Domains
      summary: Check Domain Availability
      description: |-
        Check if a domain is available for registration.

        Returns availability status and pricing if available.
      operationId: check_domain_availability_api_v1_registrar_availability__domain__get
      parameters:
        - name: domain
          in: path
          required: true
          schema:
            type: string
            title: Domain
        - name: registrar
          in: query
          required: false
          schema:
            type: string
            default: namecheap
            title: Registrar
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DomainAvailabilityResponse'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security:
        - APIKeyHeader: []
        - HTTPBearer: []
components:
  schemas:
    DomainAvailabilityResponse:
      properties:
        domain:
          type: string
          title: Domain
        available:
          type: boolean
          title: Available
        status:
          $ref: '#/components/schemas/DomainStatus'
        premium:
          type: boolean
          title: Premium
          default: false
        price:
          anyOf:
            - type: string
              pattern: ^(?!^[-+.]*$)[+-]?0*\d*\.?\d*$
            - type: 'null'
          title: Price
        currency:
          type: string
          title: Currency
          default: USD
      type: object
      required:
        - domain
        - available
        - status
      title: DomainAvailabilityResponse
      description: Response for domain availability check
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    DomainStatus:
      type: string
      enum:
        - available
        - unavailable
        - premium
        - reserved
        - unknown
      title: DomainStatus
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
  securitySchemes:
    APIKeyHeader:
      type: apiKey
      in: header
      name: X-API-Key
    HTTPBearer:
      type: http
      scheme: bearer

````