Video
- Text
- 2,200 caption characters
- Media
- One public HTTPS MP4 or QuickTime video
All platforms
TikTok
OAuth 2.0
Build a TikTok video or photo post with the correct caption limit.
This page is for people deciding whether OpenPost fits their TikTok publishing workflow.
OpenPost supports TikTok video and photo posts, each with its own caption limit.
Implemented: App review and live test required
Managed certification: No managed provider-format certification claim is current.
Your social app may need approval before it can publish.
Formats and limits
Different formats, different rules.
OpenPost checks the text and media rules for the format you choose.
Photo post
- Text
- 4,000 caption characters
- Media
- 1-35 public HTTPS JPEG or WebP images
Provider limits and scope
- 2,200 characters for video captions
- 4,000 characters for photo-post captions
- One video or 1-35 JPEG/WebP photos
- Photo posts support 1-35 JPEG or WebP images
- App review and a live test are required
Connect and test
Set up TikTok in three checks.
- 1
Set up the TikTok app, callback address, permissions, and posting access.
- 2
Verify the public media URL prefix or domain in the TikTok developer console.
- 3
Complete app review and test both video and photo posts with the real account.
Known limits
What can still block a post.
- TikTok blocks publishing until the app passes review and a live post test.
- Pull-from-URL media must use a verified public HTTPS prefix or domain.
- Video and photo posts use different caption and media rules.
Account requirement: A TikTok developer app with Content Posting API access and approved Direct Post permissions.
Verification: Do not use it for real posts until TikTok approves the app and your posting test works.
Use the current callback address, permissions, and media setup.
Social network developer pages change. The OpenPost guide lists the settings and checks you need now.
Read the TikTok guide