Telnyx Verify API Verify API

openapi: 3.2.0
info:
  title: Telnyx and Number Lookup Verify API
  description: 'The Telnyx Verify API is a two-factor authentication (2FA) and phone-number verification service, and Telnyx Number Lookup is a number-intelligence (carrier / caller-name / portability) service. Both are products of Telnyx, the private-IP cloud communications (CPaaS) platform, and both run on the same Telnyx API v2 base (https://api.telnyx.com/v2) with Bearer API-key authentication.

    Verify sends a one-time passcode (OTP) over SMS, voice call, flash call, or WhatsApp, then verifies the code the end user enters - either by verification ID or by phone number. Verify Profiles hold the reusable per-channel configuration (which methods are enabled, code length, timeout, templates, app name) applied when sending 2FA messages. Number Lookup returns carrier, line-type, caller-name (CNAM), and portability data for an E.164 phone number, for use in routing, validation, lead enrichment, and anti-fraud workflows.

    This is a product-specific treatment. The parent company `telnyx` catalog entry documents the full Telnyx voice / messaging / numbers / fax / wireless surface; this entry isolates the Verify + Number Lookup identity endpoints.

    Endpoints, methods, the single API v2 server, and Bearer auth are grounded in the official Telnyx OpenAPI specification (github.com/team-telnyx/openapi). Request/response schema bodies here are summarized rather than fully mirrored; treat the published Telnyx spec as authoritative for field-level detail.'
  version: 2.0.0
  contact:
    name: Telnyx Developers
    url: https://developers.telnyx.com
  license:
    name: Telnyx Terms of Service
    url: https://telnyx.com/terms-and-conditions
servers:
- url: https://api.telnyx.com/v2
  description: Telnyx API v2
security:
- bearerAuth: []
tags:
- name: Verify
  description: Trigger and check OTP / 2FA verifications over SMS, call, flash call, and WhatsApp.
paths:
  /verifications/sms:
    post:
      operationId: createVerificationSms
      tags:
      - Verify
      summary: Trigger SMS verification
      description: Sends a one-time verification code to the target phone number by SMS, using the SMS channel configured on the referenced Verify profile.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TriggerVerificationRequest'
      responses:
        '200':
          description: Verification created.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VerificationResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /verifications/call:
    post:
      operationId: createVerificationCall
      tags:
      - Verify
      summary: Trigger Call verification
      description: Places a voice call to the target phone number and reads the one-time verification code aloud, using the call channel on the Verify profile.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TriggerVerificationRequest'
      responses:
        '200':
          description: Verification created.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VerificationResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /verifications/flashcall:
    post:
      operationId: createVerificationFlashcall
      tags:
      - Verify
      summary: Trigger Flash call verification
      description: Triggers a brief "flash" call that rings the target number once and hangs up; the verification code is conveyed via the caller ID. Requires the flash call channel on the Verify profile.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TriggerVerificationRequest'
      responses:
        '200':
          description: Verification created.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VerificationResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /verifications/whatsapp:
    post:
      operationId: createVerificationWhatsapp
      tags:
      - Verify
      summary: Trigger WhatsApp verification
      description: Sends a one-time verification code to the target phone number over WhatsApp, using the WhatsApp channel on the Verify profile.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/TriggerVerificationRequest'
      responses:
        '200':
          description: Verification created.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VerificationResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /verifications/by_phone_number/{phone_number}:
    get:
      operationId: listVerificationsByPhoneNumber
      tags:
      - Verify
      summary: List verifications by phone number
      description: Lists verifications for the given E.164 phone number.
      parameters:
      - $ref: '#/components/parameters/PhoneNumberPath'
      responses:
        '200':
          description: A list of verifications.
          content:
            application/json:
              schema:
                type: object
                properties:
                  data:
                    type: array
                    items:
                      $ref: '#/components/schemas/VerificationResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /verifications/by_phone_number/{phone_number}/actions/verify:
    post:
      operationId: verifyByPhoneNumber
      tags:
      - Verify
      summary: Verify verification code by phone number
      description: Submits the code the end user entered, matched against the most recent pending verification for the given phone number.
      parameters:
      - $ref: '#/components/parameters/PhoneNumberPath'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/VerifyCodeRequest'
      responses:
        '200':
          description: Verification result.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VerifyResultResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
  /verifications/{verification_id}:
    get:
      operationId: retrieveVerification
      tags:
      - Verify
      summary: Retrieve verification
      description: Retrieves a single verification by its ID.
      parameters:
      - name: verification_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
        description: The identifier of the verification.
      responses:
        '200':
          description: The verification.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VerificationResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
  /verifications/{verification_id}/actions/verify:
    post:
      operationId: verifyById
      tags:
      - Verify
      summary: Verify verification code by ID
      description: Submits the code the end user entered for a specific verification ID.
      parameters:
      - name: verification_id
        in: path
        required: true
        schema:
          type: string
          format: uuid
        description: The identifier of the verification.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/VerifyCodeRequest'
      responses:
        '200':
          description: Verification result.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/VerifyResultResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  parameters:
    PhoneNumberPath:
      name: phone_number
      in: path
      required: true
      schema:
        type: string
      description: The phone number in E.164 format, e.g. +15551234567.
  responses:
    NotFound:
      description: The requested resource was not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Errors'
    Unauthorized:
      description: Missing or invalid API key.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Errors'
  schemas:
    Errors:
      type: object
      properties:
        errors:
          type: array
          items:
            type: object
            properties:
              code:
                type: string
              title:
                type: string
              detail:
                type: string
    VerifyResultResponse:
      type: object
      properties:
        data:
          type: object
          properties:
            phone_number:
              type: string
            response_code:
              type: string
              enum:
              - accepted
              - rejected
              description: Whether the submitted code was accepted or rejected.
    VerificationResponse:
      type: object
      properties:
        data:
          type: object
          properties:
            id:
              type: string
              format: uuid
            phone_number:
              type: string
            type:
              type: string
              enum:
              - sms
              - call
              - flashcall
              - whatsapp
            verify_profile_id:
              type: string
              format: uuid
            status:
              type: string
              enum:
              - pending
              - accepted
              - expired
            created_at:
              type: string
              format: date-time
            updated_at:
              type: string
              format: date-time
    VerifyCodeRequest:
      type: object
      required:
      - code
      properties:
        code:
          type: string
          description: The verification code entered by the end user.
          example: '17686'
        verify_profile_id:
          type: string
          format: uuid
          description: Optional Verify profile scope when verifying by phone number.
    TriggerVerificationRequest:
      type: object
      required:
      - phone_number
      - verify_profile_id
      properties:
        phone_number:
          type: string
          description: The receiving phone number in E.164 format.
          example: '+15551234567'
        verify_profile_id:
          type: string
          format: uuid
          description: The Verify profile whose channel configuration should be used.
        timeout_secs:
          type: integer
          description: Seconds before the verification code expires.
          example: 300
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API key
      description: 'Telnyx API v2 key passed as `Authorization: Bearer YOUR_API_KEY`. Create keys in the Telnyx Mission Control Portal under Auth / API Keys.'