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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llms.txtOpenAPI
OverviewPlatformsAPI ReferenceResources
SMS

List carrier registrations

GET
/v1/sms/registrations

Authorization

bearerAuth
AuthorizationBearer <token>

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

In: header

Query Parameters

includeDeactivated?boolean

Deactivated (terminated) registrations are hidden by default. Pass true to include them.

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.listSmsRegistrations();console.log(data);
{  "registrations": [    {      "id": "string",      "registrationType": "standard_10dlc",      "displayName": "string",      "status": "pending",      "brandStatus": "string",      "campaignStatus": "string",      "brandId": "string",      "campaignId": "string",      "declineReason": "string",      "tfActionRequiredAt": "2019-08-24T14:15:22Z",      "phoneNumbers": [        "string"      ],      "awaitingOtp": true,      "adminReviewNote": "string",      "lastResponseAt": "2019-08-24T14:15:22Z",      "previouslyRejected": true,      "lastRejectedAt": "2019-08-24T14:15:22Z",      "rejectedBeforeSubmission": true,      "otpExpired": true,      "reviewRequest": {        "id": "string",        "intro": "string",        "points": [          {            "id": "string",            "title": "string",            "detail": "string",            "answer": "text"          }        ]      },      "trustScore": 0,      "throughput": {        "label": "string",        "smsPerMinute": 0,        "smsPerDay": 0      }    }  ]}
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Add number to SMS registration

Attaches this number to your existing approved 10DLC campaign instead of running a fresh registration: the number inherits the campaign's approval (no new brand or campaign, no extra carrier fee). Enable SMS on the number first (`POST /v1/phone-numbers/{id}/sms`; its response tells you whether a reusable registration exists).

Pre-check a carrier registration

Dry-run of `POST /v1/sms/registrations` for 10DLC: validates and composes the exact brand/campaign payloads a submission would store (branding, disclosures, auto-replies), runs deterministic compliance lints plus an AI reviewer over them, and returns the findings WITHOUT creating anything. Use it to fix issues before submitting; `block` severity findings indicate a near-certain carrier rejection.