Account Groups4

Account Settings9

Accounts16

Ad Accounts47

Ad Audiences7

Ad Campaigns50

Ad Creatives17

Ad Insights11

Ad Library1

Ad Targeting5

Analytics25

API Keys4

Blogs10

Broadcasts10

Business Agent55

Calls3

Comment Automations6

Comments15

Connect57

Connected Apps2

Contacts7

Conversions14

Custom Fields6

Discord24

GMB Attributes3

GMB Food Menus2

GMB Location Details2

GMB Media3

GMB Place Actions4

GMB Reviews5

GMB Services2

GMB Verifications4

iMessage17

Inbox Analytics7

Instagram5

Invites1

Lead Gen8

LinkedIn Mentions1

Logs1

Media1

Mentions2

Messages16

Messaging Ads3

Phone Numbers30

Posts10

Product Catalogs19

Products3

Profiles5

Queue6

Reach and Frequency4

Reddit Search2

Reviews3

Sequences10

Slack1

SMS22

Tools1

Tracking Tags10

Twitter Engagement8

Usage6

Users2

Validate4

Verify3

Voice18

Webhooks7

WhatsApp46

WhatsApp Calling16

WhatsApp Flows15

WhatsApp Phone Numbers16

WhatsApp Sandbox3

WhatsApp Templates1

Workflows14

Webhooks

Webhook Events55

Posts

Update post metadata

Updates metadata of a published video on the specified platform without re-uploading. Currently only supported for YouTube. At least one updatable field is required.

Two modes:

Post-based (video published through Zernio): pass the Zernio postId in the URL and platform in the body.
Direct video ID (video uploaded outside Zernio, e.g. directly to YouTube): use _ as the postId, and pass videoId + accountId + platform in the body. The accountId is the Zernio account ID for the connected YouTube channel.

post/v1/posts/{postId}/update-metadata

Path parameters

postIdstring required

Zernio post ID, or "_" when using direct video ID mode

Request body

platform'youtube' required

The platform to update metadata on

videoIdstring

YouTube video ID (required for direct mode, ignored for post-based mode)

accountIdstring

Zernio account ID (required for direct mode, ignored for post-based mode)

titlestring

New video title (max 100 characters for YouTube)

descriptionstring

New video description

tagsstring[]

Array of keyword tags (max 500 characters combined for YouTube)

categoryIdstring

YouTube video category ID

privacyStatus'public' | 'private' | 'unlisted'

Video privacy setting

thumbnailUrlstring uri

Public URL of a custom thumbnail image (JPEG, PNG, or GIF, max 50 MB, recommended 1280x720). Works on any video you own, including existing videos not published through Zernio. The channel must be verified (phone verification) to set custom thumbnails.

madeForKidsboolean

COPPA compliance flag. Set true for child-directed content (restricts comments, notifications, ad targeting).

containsSyntheticMediaboolean

AI-generated content disclosure. Set true if the video contains synthetic content that could be mistaken for real. YouTube may add a label.

playlistIdstring

YouTube playlist ID to add the video to (e.g. 'PLxxxxxxxxxxxxx'). Use GET /v1/accounts/{id}/youtube-playlists to list available playlists. Only playlists owned by the channel are supported.

Response

Metadata updated successfully

successboolean

messagestring

videoIdstring

Only present in direct video ID mode

updatedFieldsstring[]

Changes

Changed in 3 of the 56 revisions of this API.14

Sep 25, 20262c04683ce6948See the full diff
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  added the optional property / to the response with the status
  response-optional-property-added
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  added the optional property / to the response with the status
  response-optional-property-added
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  added the optional property / to the response with the status
  response-optional-property-added
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  added the optional property / to the response with the status
  response-optional-property-added
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This revision also has 2 changes that name no endpoint, such as unreferenced schemas being removed. See the revision's changelog
Sep 16, 20263e6ddf2a99ea2See the full diff
- ○
  added the optional property / to the response with the status
  response-optional-property-added
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  added the optional property / to the response with the status
  response-optional-property-added
Sep 15, 20260dba7d004d754See the full diff
- ○
  added the optional property / to the response with the status
  response-optional-property-added
- ○
  added the optional property / to the response with the status
  response-optional-property-added
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  added the optional property / to the response with the status
  response-optional-property-added
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  added the optional property / to the response with the status
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Full history