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

# Purchase a phone number

> Purchase an available phone number. The first US phone number is free for each team.



## OpenAPI

````yaml /openapi.json post /v1/phone-numbers
openapi: 3.0.3
info:
  title: Zavu Unified Messaging Layer API
  version: 0.2.0
  description: >
    Unified multi-channel messaging API for Zavu.


    Supported channels:

    - **SMS**: Simple text messages

    - **WhatsApp**: Rich messaging with media, buttons, lists, CTA URL buttons,
    and templates

    - **Telegram**: Bot messaging with text, media, and interactive elements

    - **Email**: Transactional emails via Amazon SES


    Design goals:

    - Simple `send()` entrypoint for developers

    - Project-level authentication via Bearer token

    - Support for all WhatsApp message types (text, image, video, audio,
    document, sticker, location, contact, buttons, list, cta_url, reaction,
    template)

    - If a non-text message type is sent, WhatsApp channel is used automatically

    - 24-hour WhatsApp conversation window enforcement

    - Universal `to` field accepts phone numbers (E.164), email addresses, or
    numeric chat IDs (Telegram/Instagram)
servers:
  - url: https://api.zavu.dev
security:
  - bearerAuth: []
paths:
  /v1/phone-numbers:
    post:
      summary: Purchase a phone number
      description: >-
        Purchase an available phone number. The first US phone number is free
        for each team.
      operationId: purchasePhoneNumber
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PhoneNumberPurchaseRequest'
            example:
              phoneNumber: '+15551234567'
              name: Primary Line
      responses:
        '201':
          description: Phone number purchased successfully.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PhoneNumberResponse'
        '400':
          description: Invalid request or phone number no longer available.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: Unauthorized.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '402':
          description: Insufficient balance.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
              example:
                code: insufficient_balance
                message: >-
                  Insufficient balance. Required: $1.25. Please add funds to
                  continue.
      security:
        - bearerAuth: []
components:
  schemas:
    PhoneNumberPurchaseRequest:
      type: object
      required:
        - phoneNumber
      properties:
        phoneNumber:
          type: string
          description: Phone number in E.164 format.
          example: '+15551234567'
        name:
          type: string
          maxLength: 100
          description: Optional custom name for the phone number.
    PhoneNumberResponse:
      type: object
      required:
        - phoneNumber
      properties:
        phoneNumber:
          $ref: '#/components/schemas/OwnedPhoneNumber'
    Error:
      type: object
      required:
        - code
        - message
      properties:
        code:
          type: string
          example: invalid_request
        message:
          type: string
          example: Phone number is invalid
        details:
          type: object
          additionalProperties: true
    OwnedPhoneNumber:
      type: object
      required:
        - id
        - phoneNumber
        - capabilities
        - status
        - pricing
        - createdAt
      properties:
        id:
          type: string
        phoneNumber:
          type: string
          example: '+15551234567'
        name:
          type: string
          description: Optional custom name for the phone number.
        capabilities:
          type: array
          items:
            type: string
          example:
            - sms
            - voice
        status:
          $ref: '#/components/schemas/PhoneNumberStatus'
        senderId:
          type: string
          description: Sender ID if the phone number is assigned to a sender.
        pricing:
          $ref: '#/components/schemas/OwnedPhoneNumberPricing'
        nextRenewalDate:
          type: string
          format: date-time
        createdAt:
          type: string
          format: date-time
        updatedAt:
          type: string
          format: date-time
    PhoneNumberStatus:
      type: string
      enum:
        - active
        - suspended
        - pending
    OwnedPhoneNumberPricing:
      type: object
      properties:
        monthlyPrice:
          type: number
          description: Monthly price in USD.
        upfrontCost:
          type: number
          description: One-time purchase cost in cents.
        monthlyCost:
          type: number
          description: Monthly cost in cents.
        isFreeNumber:
          type: boolean
          description: Whether this is a free number.
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT

````