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
Dashboard
llms.txtOpenAPI
OverviewPlatformsAPI ReferenceResources
SMS

Get a carrier registration

Poll this for approval progress after starting a registration.

GET
/v1/sms/registrations/{id}

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

application/json

import Zernio from '@zernio/node';const zernio = new Zernio({ apiKey: process.env.ZERNIO_API_KEY });const { data } = await zernio.sms.getSmsRegistration({  path: {    id: 'abc123',  },});console.log(data);
{  "id": "string",  "registrationType": "standard_10dlc",  "status": "pending",  "brandStatus": "string",  "campaignStatus": "string",  "declineReason": "string",  "phoneNumbers": [    "string"  ],  "awaitingOtp": true,  "adminReviewNote": "string",  "reviewRequest": {    "id": "string",    "intro": "string",    "points": [      {        "id": "string",        "title": "string",        "detail": "string",        "answer": "text"      }    ]  },  "campaignContent": {    "messageFlow": "string",    "sample1": "string",    "sample2": "string"  }}
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Start a carrier registration

Starts the US carrier registration that a number needs before SMS delivers: 10DLC (standard company or sole-proprietor) or toll-free verification. 10DLC needs `brand` + `campaign`; toll-free needs `tollFree`. Approval is asynchronous; poll `GET /v1/sms/registrations/{id}` (sole-prop registrations first need the OTP step: a code is texted to the brand's mobile number, submit it via `/verify-otp`). Already have an approved registration? Add another number to it with `POST /v1/phone-numbers/{id}/sms/reuse-registration` instead of registering (and paying the carrier brand fee) again. Rather have your client fill in the legal business details? Create a share link with `POST /v1/sms/registrations/share`.

Create a registration share link

Creates a single-use, expiring link (valid 7 days) that lets someone else (whoever has the legal business details) fill in the carrier registration form for one of your numbers, without a Zernio login. The registration is created under your account once the form is submitted.