Social Media Posting Limits 2026: Daily and API Caps per Platform

Every platform caps how often you can post through its API, and the limits change quietly. YouTube moved uploads to their own quota in June 2026, and Instagram's cap is now four times what most blog posts still say. Here is each limit as the platform's own documentation states it, with the source. Checked on November 3, 2026.

Instagram: 100 posts per 24 hours

• -100 API-published posts per account in a rolling 24 hours, counted when a post is published.
• -A carousel counts as one post, and holds up to 20 images or videos.
• -Check how much is left with GET /<IG_ID>/content_publishing_limit.

One section of the same page still says 50 posts per 24 hours, so expect the lower number if Meta tightens it again. Source: Instagram Content Publishing API.

TikTok: about 15 posts a day

• -Typically around 15 posts a day per creator account through the Content Posting API. Past that, TikTok returns spam_risk_too_many_posts and blocks posting for a while.
• -6 upload starts a minute per account, for videos and photo posts alike. The 7th gets HTTP 429 rate_limit_exceeded.
• -Photo posts take up to 35 images.
• -Apps TikTok hasn't audited can post for up to 5 users a day, and only as private (SELF_ONLY) posts.

Sources: TikTok content sharing guidelines, Direct Post API reference.

YouTube: 100 API uploads a day per project

• -Since June 1, 2026, videos.insert has its own quota bucket: 100 uploads a day per Google Cloud project, 1 unit each.
• -All other Data API calls share 10,000 units a day.
• -The older rule, 1,600 units per upload out of 10,000 (about 6 uploads a day), no longer applies, though many guides still quote it.
• -YouTube doesn't publish a per-channel daily upload number; the API returns uploadLimitExceeded when a channel hits it.
• -Videos can be up to 15 minutes until you verify the account, and up to 12 hours or 256 GB after.

Sources: YouTube quota costs, revision history, YouTube Help. For Shorts specifically, see the Shorts upload requirements.

Facebook Pages: no published post cap

Meta doesn't publish a number of posts per Page per day. Instead, API calls for a Page are rate limited: 4,800 calls in 24 hours times the number of engaged users (Business Use Case limits), on top of an app-wide limit of 200 calls an hour per user. The X-Business-Use-Case-Usage header shows how close you are. Source: Graph API rate limiting.

Threads: 250 posts per 24 hours

• -250 API-published posts and 1,000 replies per profile in a rolling 24 hours.
• -A carousel counts as one post and takes 2 to 20 items. Text posts are up to 500 characters.
• -Check usage with GET /{threads-user-id}/threads_publishing_limit.

Source: Threads API overview.

X (Twitter): 100 posts per 15 minutes

• -POST /2/tweets allows 100 requests per 15 minutes per user and 10,000 per 24 hours per app.
• -The API is now pay per use: creating a post costs $0.015, or $0.20 when the post has a link. There's no monthly cap on creating posts.
• -X's Help Center lists separate daily limits for posting in the app; check it for your account type.

Sources: X API rate limits, X API pricing.

LinkedIn: daily limits, not published

LinkedIn sets a daily limit per member and per app, both resetting at midnight UTC, but doesn't publish the numbers: each app sees its own in the Developer Portal. Over the limit, the Posts API answers 429. Source: LinkedIn API rate limits.

Pinterest: per-minute write limits

Creating Pins counts as a write. With standard API access that's 100 requests a minute per user per app; apps on trial access get 300 requests a day in total. Pinterest notes the limits can change without notice. Source: Pinterest rate limits.

Bluesky: a points budget

Accounts on Bluesky's own servers get 5,000 points an hour and 35,000 a day, and creating a post costs 3 points: about 1,666 posts an hour or 11,666 a day. Self-hosted servers can set their own limits. Source: Bluesky rate limits.

Snapchat and Reddit

Snapchat's Public Profile API doesn't publish a posting cap. Reddit rate limits API requests per OAuth client and publishes no post count; spam filters and each subreddit's own rules decide how often you can post there.

How to stay under the limits

• -Spread posts across the day instead of sending a batch at once; per-minute limits (TikTok, X, Pinterest) are the easiest to hit.
• -Read the usage endpoints and headers (Instagram, Threads, Facebook) before a big batch.
• -Treat a 429 or a "too many posts" error as a pause, not a failure: retry after the window, not in a tight loop, which can extend the block.
• -Count carousels as one post on Instagram and Threads, so they're the cheapest way to share many images.

ShortSync does this for you: it spaces TikTok uploads to 5 a minute per account and waits out a platform's cooldown before retrying. Through the ShortSync API or from n8n, the same rules apply, and a webhook tells you when a post is published or fails.