Core concepts
A handful of concepts underpin everything in post.buzz. Once these click, the rest of the product follows naturally.
Accounts
An account is a connected social channel — one Instagram profile, one X handle, one LinkedIn page, and so on. Each account belongs to exactly one platform and carries the credentials, profile info, and per-account settings (like posting timezone and minimum gap between posts) needed to act on your behalf.
Accounts can be shared with teammates through organizations, with role-based access (owner / admin / member).
Posts
A post is a single piece of content you intend to publish. The important idea: a post is one logical unit, even when it goes to many channels.
- A post has a caption, optional first comment, a post type (post, reel, story, short, etc. — depending on platform), attached media, and a status.
- When you publish to multiple channels at once, the post is fanned out into
per-channel post accounts, each of which can carry its own caption or
field overrides. They're grouped atomically by a
crossPostGroupId. - A post's status moves through:
draft→scheduled→publishing→published(orfailed).
This cross-post model is what lets one compose session produce tailored output on every platform.
Media
Media are the images, videos, and documents in your media library. They're stored once and can be attached to any number of posts. Media live in collections (albums) for organization, and each file is validated against platform limits before it's allowed into a post.
Global upload ceilings: 5 GB for video, 25 MB for images, 100 MB for documents — with per-platform limits often lower. We enforce the smaller of the two.
Agents
An agent is a bounded AI worker assigned to one or more accounts. Rather than a generic "generate" button, an agent has a mode that defines how much autonomy it has, plus configurable boundaries like posting frequency, caption tone, and which post types it may produce.
Every action an agent takes is recorded in a decision audit log — what it decided, why, and what insight it based that on — so you can review and steer it. See AI Agents.
Automation
Automation covers the rule-based systems that act without an agent in the loop:
- Scheduling & recurrence — post at a time, or repeat on a schedule.
- Comment automation — keyword-triggered replies or DMs.
- RSS feeds — auto-post new items from an external feed.
- Webhooks — push events out to your own systems.
Credits
AI actions (caption generation, image generation, vision, analysis, chat) run against a shared inference backend and are metered through the credits system. Each plan includes a monthly credit allocation; you can top up with credit packs. There's also a per-day fair-use cap on AI actions that sits on top of credits to prevent abuse.
Plan limits
Your plan determines how many channels you can connect, how many posts you can publish per month, your media upload allowances, max file sizes, and your daily AI action ceiling.
| Free | Starter | Pro | |
|---|---|---|---|
| Channels | 3 | 10 | 30 |
| Posts / month | 30 | 400 | Unlimited |
| AI actions / day | 50 | 200 | Unlimited |
These are separate from per-platform media limits, which apply to everyone.
Next
With the model in hand, the Features guides go deep on each surface — and the Developers section covers the REST API built on top of these same concepts.