Pinterest is a search engine — treat it like one
Pins keep driving traffic for months, which makes Pinterest the highest-leverage 'extra' channel in a cross-posting routine. The official API v5 lets an authorized app create pins on your boards after a standard OAuth consent — scoped, revocable, no password sharing.
What a pin needs
Every pin is built from an image plus copy, with rules the API enforces:
- ✓ One JPEG or PNG image (this is required — no image, no pin)
- ✓ Title up to 100 characters — auto-generated from your caption's first line if you don't set one
- ✓ Description up to 800 characters — your master caption, trimmed automatically
- ✓ A destination board — SparkSocialHq uses your first board unless you specify a board ID
Pinterest in your cross-posting flow
Because pins require an image, the composer flags Pinterest the moment you select it without one attached. With an image attached, Auto-Adapt derives the pin title, fits the description, and the same post ships simultaneously to TikTok, Instagram, X and the rest — one composer, eleven networks.