Use case
Turn one video into posts everywhere
Upload once and let Modiva publish the video as an Instagram Reel, YouTube Short, TikTok and more in one cross-post call, adapting each platform's format and limits.
The problem
One good video should live everywhere, but each platform wants different dimensions, lengths and upload flows — so repurposing turns into manual busywork.
How Modiva does it
Connect video platforms
Authorize Instagram, TikTok, YouTube and the rest once through Modiva.
Cross-post the video
Call posts_cross_post with the video and your caption; Modiva validates each platform's video rules and publishes.
Automate repurposing
Over MCP, an agent can take one upload and fan it out as Reels, Shorts and posts on its own.
Build it on Modiva
Start freeFAQ
Does it handle different aspect ratios?
Modiva validates each platform's video requirements before publishing and surfaces anything that won't fit.
Can I customise the caption per platform?
Yes — pass per-connection overrides to tailor the caption while reusing the same video.