Zernio
Zernio
API Reference

SMS

Messaging

Send an SMS/MMSPOSTLook up carrier + line typeGETList SMS opt-outsGET

Number Setup

Enable SMS on a numberPOSTDisable SMS on a numberDELETEAdd number to SMS registrationPOST

Registrations

List carrier registrationsGETPre-check a carrier registrationPOSTStart a carrier registrationPOSTGet a carrier registrationGETCreate a registration share linkPOSTDeactivate a brand/campaign registrationDELETE

Registration Review

Appeal a rejected campaignPOSTReply to a change requestPOSTUpload opt-in form proof for an appealPOSTUpload opt-in form proofPOSTRe-send the sole-prop OTPPOSTSubmit the sole-prop OTPPOST

Sender IDs

List alphanumeric sender IDsGETCreate an alphanumeric sender IDPOSTDelete an alphanumeric sender IDDELETERequest a higher sender ID daily limitPOST
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SMS

Re-send the sole-prop OTP

Re-sends the sole-proprietor verification PIN to the brand's mobile number. Use it when the original code expired or never arrived. Only valid while the registration is pending and awaiting its OTP; rate limited to one send per minute.

POST
/v1/sms/registrations/{id}/resend-otp

Authorization

bearerAuth
AuthorizationBearer <token>

API key authentication: send your Zernio API key in the Authorization header, prefixed with Bearer.

In: header

Path Parameters

id*string

Response Body

application/json

application/json

import Zernio from '@zernio/node';const zernio = new Zernio({ apiKey: process.env.ZERNIO_API_KEY });const { data } = await zernio.sms.resendSmsRegistrationOtp({  path: {    id: 'abc123',  },});console.log(data);
{  "sent": true}
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Upload opt-in form proof

Hosts a screenshot (or PDF) of your SMS opt-in form and returns its public URL. Include that URL in the campaign's `messageFlow` (the opt-in workflow text). The carrier registry has no attachment field, so reviewers verify consent by opening links in that answer. Works before a registration exists (use it when registering) and for appeals. `/v1/sms/registrations/{id}/opt-in-proof` is an alias.

Submit the sole-prop OTP

Completes sole-proprietor 10DLC brand verification by submitting the one-time PIN texted to the brand's mobile number. On success the registration continues to campaign creation automatically.