Social API comparison
Postiz is OSS + API breadth. Postmixr is managed scheduling for teams who want less ops.
Postiz: Open-source agentic social scheduler. You maintain workers, OAuth apps, and upgrades on OSS path.
Best for: Best if you need a posting API inside your own product and your team will build the UI.
Postmixr is a social media scheduler with a visual calendar, bulk CSV, REST API, and MCP for AI assistants. Free for up to 3 connected accounts. Starter is $14.99/month (3 workspaces). Pro is $39.99/month (15 workspaces) with team invites and no per-seat pricing.
Best for: Best if you want flat workspace pricing, a calendar the whole team can use, and optional API or MCP without a developer-only workflow.
Managed reliability. Official APIs, retries, and support without a DevOps calendar.
Pricing checked . View Postiz official pricing
Recommended
Free online social media scheduler for creators and teams: calendar, team workspaces, bulk CSV, and MCP.
Pinterest: connect today; publishing from Postmixr is coming soon.
Compared tool
Open-source agentic social scheduler
Postiz limitation
You maintain workers, OAuth apps, and upgrades on OSS path.
With Postmixr
Official APIs, retries, and support without a DevOps calendar.
Honest checklist. Partial means limited or beta on that side.
| Feature | Postmixr | Postiz |
|---|---|---|
| Free tier | Yes | Partial |
| REST APIPostmixr API requires a paid plan | Yes | Yes |
| MCP for AI assistants | Yes | No |
| Visual calendar UI | Yes | Partial |
Postmixr supports publishing on 8 networks in this table today. Postiz lists 8 in their product materials. "Partial" means connect-only or beta.
| Platform | Postmixr | Postiz |
|---|---|---|
| Yes | Yes | |
| Yes | Yes | |
| Yes | Yes | |
| Yes | Yes | |
| Threads | Yes | Yes |
| TikTok | Yes | Yes |
| X (Twitter) | Yes | Yes |
| YouTube | Yes | Yes |
List prices from official pages, verified .
AI video tools plus a calendar for your first channels.
Creators posting to TikTok and YouTube every week.
Growing channels that need scale and priority support.
Hosted cloud
Varies
Self-host
Unlimited (infra)
Source: Postiz website
Screenshot from the official pricing page (2026-06). Compare with the plan cards above.
Prices and plan limits come from official vendor pages only. Feature rows are based on public documentation and product positioning. We update when vendors ship major changes.
Retrieved . Cloud/OSS positioning
Building with AI? See Postmixr MCP setup for REST and Model Context Protocol access.
Start free with up to three connected accounts. Upgrade when you need more workspaces, bulk CSV, or Pro analytics.