Observed arrival · 2026-10-09
A public media URL, on a short leash
postcache describes an API that gives AI agents temporary public media URLs for Instagram, Threads, and Facebook posts, with platform checks and file expiry.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- AI agents posting media to social platforms
- Worth noticing
- A failed Instagram aspect-ratio check can return a suggested `?convert=crop-4x5` fix.
Field notes
The example request uses a PUT to upload a video and specifies a target such as `instagram.reels`; the response includes format-check results and an expiring CDN URL. The page also shows a failed aspect-ratio check with a suggested crop conversion, and lists a 24-hour default hosting period with a seven-day option. These are presented as product behavior on an early-access page, not independently confirmed operation.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
One card from the complete issue