Twilio Verifications API

openapi: 3.2.0
info:
  title: Twilio Verify Verifications API
  description: User verification and two-factor authentication API. Send verification codes via SMS, voice, email, WhatsApp, or push notifications. Supports TOTP, push authentication, and silent network authentication for fraud prevention and user identity verification.
  version: '2.0'
  contact:
    name: Twilio Support
    url: https://support.twilio.com
    email: support@twilio.com
  license:
    name: Apache 2.0
    url: https://www.apache.org/licenses/LICENSE-2.0.html
  termsOfService: https://www.twilio.com/legal/tos
servers:
- url: https://verify.twilio.com/v2
  description: Twilio Verify API v2
security:
- accountSid_authToken: []
tags:
- name: Verifications
  description: Send and manage verification codes
paths:
  /Services/{ServiceSid}/Verifications:
    post:
      operationId: createVerification
      summary: Twilio Start a Verification
      description: Send a verification code to a user via SMS, voice call, email, WhatsApp, or SNA. The code is automatically generated and sent.
      tags:
      - Verifications
      parameters:
      - $ref: '#/components/parameters/ServiceSid'
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              $ref: '#/components/schemas/CreateVerificationRequest'
      responses:
        '201':
          description: Verification created and code sent
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Verification'
        '400':
          description: Invalid request
        '429':
          description: Rate limit exceeded
  /Services/{ServiceSid}/Verifications/{VerificationSid}:
    get:
      operationId: fetchVerification
      summary: Twilio Fetch a Verification
      tags:
      - Verifications
      parameters:
      - $ref: '#/components/parameters/ServiceSid'
      - name: VerificationSid
        in: path
        required: true
        schema:
          type: string
          pattern: ^VE[0-9a-fA-F]{32}$
      responses:
        '200':
          description: Verification details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Verification'
    post:
      operationId: updateVerification
      summary: Twilio Update a Verification
      description: Cancel a pending verification or mark it as approved.
      tags:
      - Verifications
      parameters:
      - $ref: '#/components/parameters/ServiceSid'
      - name: VerificationSid
        in: path
        required: true
        schema:
          type: string
          pattern: ^VE[0-9a-fA-F]{32}$
      requestBody:
        required: true
        content:
          application/x-www-form-urlencoded:
            schema:
              type: object
              required:
              - Status
              properties:
                Status:
                  type: string
                  enum:
                  - canceled
                  - approved
      responses:
        '200':
          description: Verification updated
components:
  schemas:
    CreateVerificationRequest:
      type: object
      required:
      - To
      - Channel
      properties:
        To:
          type: string
          description: Phone number (E.164) or email address to verify
        Channel:
          type: string
          enum:
          - sms
          - call
          - email
          - whatsapp
          - sna
          description: Channel to use for delivery
        CustomFriendlyName:
          type: string
          description: Custom name shown in the verification message
        CustomMessage:
          type: string
          description: Custom message for SMS verification
        SendDigits:
          type: string
          description: DTMF digits to play before the code (call channel)
        Locale:
          type: string
          description: Locale for the verification message (e.g., en)
        CustomCode:
          type: string
          description: Custom verification code (requires custom code enabled)
        Amount:
          type: string
          description: Amount for PSD2 verification
        Payee:
          type: string
          description: Payee for PSD2 verification
        RateLimits:
          type: string
          description: JSON object of rate limit key-value pairs
        TemplateSid:
          type: string
          description: SID of a custom template
        TemplateCustomSubstitutions:
          type: string
          description: JSON object of template substitution variables
    Verification:
      type: object
      properties:
        sid:
          type: string
          pattern: ^VE[0-9a-fA-F]{32}$
          description: Unique identifier for the verification
        service_sid:
          type: string
          pattern: ^VA[0-9a-fA-F]{32}$
        account_sid:
          type: string
          pattern: ^AC[0-9a-fA-F]{32}$
        to:
          type: string
          description: Phone number or email being verified
        channel:
          type: string
          enum:
          - sms
          - call
          - email
          - whatsapp
          - sna
          description: Verification channel used
        status:
          type: string
          enum:
          - pending
          - approved
          - canceled
          - max_attempts_reached
          - deleted
          - failed
          - expired
          description: Current verification status
        valid:
          type: boolean
          description: Whether the verification was successful
        lookup:
          type: object
          description: Lookup information for the phone number
          properties:
            carrier:
              type: object
        send_code_attempts:
          type: array
          items:
            type: object
            properties:
              attempt_sid:
                type: string
              channel:
                type: string
              time:
                type: string
                format: date-time
        date_created:
          type: string
          format: date-time
        date_updated:
          type: string
          format: date-time
        url:
          type: string
          format: uri
  parameters:
    ServiceSid:
      name: ServiceSid
      in: path
      required: true
      description: The SID of the Verify service
      schema:
        type: string
        pattern: ^VA[0-9a-fA-F]{32}$
  securitySchemes:
    accountSid_authToken:
      type: http
      scheme: basic
      description: Use your Twilio Account SID as the username and Auth Token as the password for HTTP Basic authentication.
externalDocs:
  description: Twilio Verify API Documentation
  url: https://www.twilio.com/docs/verify/api