Zernio
Zernio
API Reference

Posting Analytics

Cross-platform

Get post analyticsGETAnalytics changed since a cursorGETSync an external postPOSTGet post analytics timelineGETGet daily aggregated metricsGETGet best times to postGETGet content performance decayGETGet frequency vs engagementGETGet follower statsGET

Instagram

Get Instagram insightsGETGet Instagram follower historyGETGet Instagram demographicsGET

YouTube

Get YouTube channel insightsGETGet YouTube daily viewsGETGet YouTube video retention curveGETGet YouTube demographicsGET

LinkedIn

Get LinkedIn aggregate statsGETGet LinkedIn org analyticsGETGet LinkedIn post statsGETGet LinkedIn post reactionsGET

Facebook

Get Facebook Page insightsGETGet Facebook post reactionsGETGet Facebook post monetization earningsGET

TikTok

Get TikTok account-level insightsGET

Google Business

Get Google Business Profile performance metricsGETGet Google Business Profile search keywordsGET
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Posting Analytics

Get Instagram demographics

Returns audience demographic insights for an Instagram account, broken down by age, city, country, and/or gender. Requires at least 100 followers. Returns top 45 entries per dimension. Data may be delayed up to 48 hours. Requires the Analytics add-on.

GET
/v1/analytics/instagram/demographics

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

The Zernio SocialAccount ID for the Instagram account

metric?string

"follower_demographics" for follower audience data, or "engaged_audience_demographics" for engaged viewers.

Default"follower_demographics"

Value in

  • "follower_demographics"
  • "engaged_audience_demographics"
breakdown?string

Comma-separated list of demographic dimensions: age, city, country, gender. Defaults to all four if omitted.

timeframe?string

Time period for demographic data. Defaults to "this_month".

Default"this_month"

Value in

  • "this_week"
  • "this_month"

Response Body

application/json

application/json

application/json

application/json

application/json

application/json

{  "success": true,  "accountId": "64e1a2b3c4d5e6f7a8b9c0d1",  "platform": "instagram",  "metric": "follower_demographics",  "timeframe": "last_30_days",  "demographics": {    "age": [      {        "dimension": "25-34",        "value": 4500      },      {        "dimension": "18-24",        "value": 3200      }    ],    "gender": [      {        "dimension": "M",        "value": 3000      },      {        "dimension": "F",        "value": 4800      }    ],    "city": [      {        "dimension": "New York, New York",        "value": 800      },      {        "dimension": "Los Angeles, California",        "value": 650      }    ],    "country": [      {        "dimension": "US",        "value": 5000      },      {        "dimension": "GB",        "value": 1200      }    ]  },  "note": "Demographics show top 45 entries per dimension. Requires 100+ followers."}
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Get Instagram follower history

Returns a daily running Instagram follower count time series, served from Zernio's cross-platform daily snapshotter. Exists because Meta removed follower_count from the /insights endpoint in Graph API v22+ and never exposed a historical daily series via any public API. Response envelope matches /v1/analytics/instagram/account-insights so the same client handling works. Max 89 days, defaults to last 30 days. Requires the Analytics add-on.

Get YouTube channel insights

Returns channel-scoped aggregate metrics from YouTube Analytics API v2. Saves you from looping /v1/analytics/youtube/daily-views over every video when you only need channel totals. Response shape matches /v1/analytics/instagram/account-insights so the same client handling works. Requires yt-analytics.readonly scope (412 with reauthorizeUrl if missing). Data has a 2-3 day delay (endDate is clamped accordingly). Max 89 days, defaults to last 30 days. Requires the Analytics add-on. NOT exposed: impressions (Studio thumbnail impressions) and impressionsClickThroughRate. YouTube Analytics API v2 does not expose these for any principal type, not channel owners, not Partner Program channels, not content owners with CMS access. The only way to get them is Studio CSV export. This is a Google-side limitation.