Supported Platforms

VoxBurst supports publishing to the following social media platforms. Use the platform constants when creating posts or filtering analytics.

Platforms Overview

Platform	Constant	Status
Twitter / X	`TWITTER`	✅ Available
LinkedIn	`LINKEDIN`	✅ Available
Bluesky	`BLUESKY`	✅ Available
Instagram	`INSTAGRAM`	✅ Available
Facebook	`FACEBOOK`	✅ Available
Threads	`THREADS`	✅ Available
Mastodon	`MASTODON`	🔜 Coming Soon

Content Limits

Platform	Max Text	Max Images	Video Length	Notes
Twitter/X	280 chars	4	2:20 min	Links count as 23 chars
LinkedIn	3,000 chars	20	10 min	Company page posts supported
Instagram	2,200 chars	10	60 sec	Image required for feed posts
Facebook	63,206 chars	10	4 hours	Pages and personal profiles
Bluesky	300 chars	4	N/A
Threads	500 chars	10	5 min	Meta platform

Twitter / X

Constant: TWITTER
Character limit: 280 (links count as 23 characters regardless of length)
Media: Up to 4 images, or 1 video, or 1 GIF
OAuth: Required — connect via OAuth 2.0 with PKCE

Constant: LINKEDIN
Character limit: 3,000 for posts
Media: Up to 20 images or 1 video (10 min max)
Account types: Personal profiles and company pages
OAuth: Required — uses LinkedIn OAuth 2.0

Bluesky

Constant: BLUESKY
Character limit: 300 graphemes
Media: Up to 4 images
Protocol: AT Protocol (atproto)
OAuth: Requires Bluesky account credentials

Instagram

Constant: INSTAGRAM
Character limit: 2,200 for captions
Media: Required — at least 1 image or video
Account types: Instagram Business or Creator accounts only
OAuth: Requires Facebook Graph API access

Instagram requires a Business or Creator account connected through the Facebook Graph API. Personal Instagram accounts are not supported.

Facebook

Constant: FACEBOOK
Character limit: 63,206 characters
Media: Up to 10 images or 1 video
Account types: Pages (personal profiles have limited API access)
OAuth: Facebook Graph API OAuth

Threads

Constant: THREADS
Character limit: 500 characters
Media: Up to 10 images or 1 video (5 min max)
Note: Threads is a Meta platform; requires Instagram Business account

Platform Capabilities API

Get detailed capability information for a specific platform:


curl https://api.voxburst.io/v1/platforms/twitter \
  -H "Authorization: Bearer sk_live_xxxxxxxxxxxxx"

Response


{
  "platform": "TWITTER",
  "name": "Twitter / X",
  "maxTextLength": 280,
  "maxImages": 4,
  "supportsVideo": true,
  "supportsScheduling": true,
  "supportsAnalytics": true
}