Zernio
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Zernio
APIFor you
API Reference

Accounts & Ops

Accounts

List ad accountsGETCreate ad accountPOSTUpdate ad account settingsPATCHAd account financesGET

Manager Accounts

Get manager account hierarchyGETInvite a client account to a managerPOSTAccept, decline, cancel or end a manager linkPATCH

Activity

Ad account change / audit logGETList comments on an adGETReply to an ad commentPOSTHide or unhide an ad commentPOSTDelete an ad commentDELETE

Business Assets

Businesses listGETList TikTok Business CentersGETA/B tests and lift studiesGETList Instagram ad identitiesGETList Instagram posts to boostGETList advertisable appsGETGet iOS 14 campaign limitsGETList TikTok ad pixelsGET

Labels

List ad labelsGETCreate a Google Ads labelPOSTUpdate a Google Ads labelPATCHRemove a Google Ads labelDELETEAttach a Google Ads labelPOSTDetach a Google Ads labelDELETE

Extension Assets

List account calloutsGETAdd account calloutsPOSTUpdate account calloutsPUTRemove account calloutDELETEList account sitelinksGETAdd account sitelinksPOSTUpdate account sitelinksPUTRemove account sitelinkDELETEList account snippetsGETAdd account snippetsPOSTUpdate account snippetsPUTRemove account snippetDELETE

Negative Keyword Lists

List negative keyword listsGETCreate a negative keyword listPOSTGet a negative keyword listGETRename a negative keyword listPUTDelete a negative keyword listDELETEReplace negative list keywordsPUT

Custom Conversions

List custom conversionsGETCreate custom conversionPOST

Value Rules

List value rule setsGETCreate a value rule setPOSTRead a value rule setGETReplace a value rule setPUTDelete a value rule setDELETE

Budget Scheduling

List high-demand periodsGETSchedule a budget increasePOST

DSA Compliance

Get ad account DSA defaultsGETGet DSA recommendationsGET

Other

Assign a user to an ad accountPOSTAssign a user to a PagePOSTGet ad account billingGETRead an ad account's campaigns and ad sets liveGETInvite a user to an ad account by emailPOSTList invitations awaiting multi-party approvalGETList user access invitationsGETAd account usersGETBusiness usersGETPage users of a businessGETRemove a user from an ad accountDELETERemove a user from a PageDELETERevoke a user access invitationDELETESet up ad account billing (monthly invoicing)POSTWithdraw an invitation awaiting multi-party approvalDELETE
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Accounts & Ops

List Instagram ad identities

Lists the Instagram accounts a Meta ad connection can run ads as, so you can pick the identity for a new ad.

Discovers identities through connected_instagram_accounts, Page linkage and Page-backed identities, with a best-effort business fallback. Business permission errors do not fail discovery. The resolved object uses the same profile-scoped resolver as ad creation; null means no identity was resolved. Format-specific observed-actor fallbacks at creative creation are not predicted.

PlatformsMeta
GET
/v1/ads/instagram-accounts

Authorization

bearerAuth
AuthorizationBearer <token>

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

In: header

Query Parameters

accountId*string

Zernio Meta Ads or Facebook SocialAccount ID.

adAccountId*string

Meta ad account ID including the act_ prefix.

Match^act_[0-9]+$

Response Body

application/json

application/json

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.adaccounts.listAdsInstagramAccounts({  query: {    accountId: 'account_abc123',    adAccountId: 'adaccount_abc123',  },});console.log(data);
{  "accounts": [    {      "igUserId": "17841400000000000",      "username": "example",      "isPageBacked": false,      "source": "page_backed"    }  ],  "pages": [    {      "pageId": "123456789",      "name": "Example Page",      "instagramBusinessAccount": {        "igUserId": "17841400000000000",        "username": "example"      }    }  ],  "resolved": {    "pageId": "123456789",    "igUserId": "17841400000000000",    "source": "page_backed"  }}
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A/B tests and lift studies

Lists the A/B tests and lift studies on a Meta ad account, with their timing and test groups. Lists the ad account's A/B tests and lift studies (Meta's `/act_X/ad_studies`), rows returned verbatim. The default projection covers id, name, type, timing and cells with split percentages; `fields` is a raw-passthrough override.

List Instagram posts to boost

Lists posts from the Instagram account a Meta ad connection can reach, so you can boost one as an ad. Lists the media of the Instagram account this Meta connection can reach, so an existing Instagram post can be boosted without connecting the Instagram account separately. Each `posts[].id` is the existing-post id to send as `platformPostId` when creating the ad; Meta turns it into `source_instagram_media_id` on the creative. Identity resolution reuses the same resolver as `/v1/ads/instagram-accounts`. `igUserId` is always checked against the identities the connection can reach and is never trusted as sent. When no identity is reachable the endpoint fails instead of returning an empty list, and the two causes stay apart: `403 reconnect_required` means the connection predates Instagram access (Meta then omits `instagram_business_account` from the Page read rather than erroring, so it looks identical to having no data) and the account must be reconnected granting Instagram access, while `422 instagram_business_account_unresolved` means the Page genuinely has no Instagram professional account linked.