Post to Instagram.
What Publishly actually supports for Instagramtoday — authentication, posting, analytics & how a failed post is reported. Nothing below is a roadmap item presented as shipped.
Platform facts last verified: 2026-08-10
Publishly connects to Instagram using Official OAuth, can post to it today, and reports analytics back through Publishly. Any failed Instagram post carries one of 20 documented failure codes, shared across every connected network.
| Capability | |
|---|---|
| Authentication | Official OAuth |
| Posting via Publishly | Supported by Publishly |
| Analytics via Publishly | Supported by Publishly |
| Scheduling | Supported — schedule from the calendar or the public API, same as every other connected account. |
| Failure codes | Same shared catalog as every other network — the 20-code reference |
We don’t publish numbers we haven’t re-verified.
Media specs, character limits & rate limits vary by API version and change without much notice from the platform. Rather than print numbers here that go stale, Publishly points you at Instagram’s own developer documentation — the detailed per-platform specs on this page are still being verified against the current API.
Instagram developer documentation
Every post to Instagram authenticates using Official OAuth — Publishly never asks for your platform password to post on your behalf.
See every platform Publishly supports.
Ten networks, one API, one shared failure catalog.