Reelwire does not post on Pinterest itself yet. Until it does, a channel on Pinterest is handed over by email or by webhook, and posted from there.
Why not yet
As of September 2026: posting video Pins through Pinterest's API takes an app Pinterest has reviewed, and a business account. Rather than set that up the same way for everybody, we look at it with each customer who asks.
Post meanwhile
Every channel on Pinterest can do what every channel could before the connectors:
- By email. Switch on Handed over by email in the channel's Settings, and a person posts from the post kit: Post a video by hand, Let your AI assistant post it or Post through a posting service.
- By webhook. Switch on Handed over by webhook there, and a system of yours posts it, with nobody in between: Post through the platforms' APIs, Let an AI session post it or Post through a posting service's API.
Shapes
A channel on Pinterest renders 2x3, 9x16, 1x1 and 4x5, whichever you choose per channel; 2x3 is the shape Pinterest recommends. Its text is fitted to what a Pin takes: a title of 100 characters and a description of 500, which is the post's tiny description with the brand's line and hashtags.
Ask for it
Need Pinterest sooner? Press Request Pinterest support in the channel's Platform connector section, or write to support@reelwire.io, with what you post there and how often, and we look at it with you.