How Postbase compares

Side-by-side comparisons with the tools people usually look at, including when the other one is the better pick.

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Postbase
Buffer
Starting price
$29/month for 5 channels, billed monthly or yearly
$5 per channel per month (Essentials)
MCP server
Yes, on every plan. Sign in with Postbase or use an API key
Yes, an official remote server for Claude
Public API
Yes, on every plan, with webhooks, analytics and an OpenAPI spec. Create a key on the Developers page
Yes, on every plan, with request quotas by plan
Open source
Yes. Self-host for free with your own platform keys
No
Read Postbase vs Buffer

Comparisons

What you get with Postbase

Connect the AI tool you already use

Claude, Claude Code, Cursor, VS Code, Windsurf or Gemini CLI. Sign in with Postbase and your agent can schedule posts, with no key to paste.

MCP client configuration

Connect the Postbase MCP server to your AI tool so it can schedule and publish for you.

Authentication

Sign in with PostbaseAPI key

Client

Claude DesktopClaude CodeCursorVS CodeWindsurfGemini CLI

In Claude: Settings → Connectors → Add custom connector, and paste this URL. You'll sign in to Postbase in a browser window — no API key.

url
Add to ClaudeCopy
https://mcp.postbase.so/mcp

Or use the agent built in

Tell it what to post and when. It checks your channels, writes each version and schedules it when you say so.

Postbase AgentSonnet 5
Announce our new Kochere roast on X, LinkedIn and Bluesky for Wednesday at noon.

Here's a post for all three, with a shorter cut for X. It's set for Wednesday at 12:00.

Proposed post
3 channels · Wed 23 Sep, 12:00
Schedule

Everything on one calendar

Posts you write and posts your agent schedules, across every network, in a month, week or day view.

Calendar
New post
21 – 27 Sep 2026Today
Mon
21
Tue
22
Wed
23
Thu
24
Fri
25
Sat
26
Sun
27
11:00
12:00
13:00
14:00
15:00
Manage channels

Ready to get started?

Try it for a week. Every plan includes every network, the MCP server and the API.

Cancel anytime · or self-host for free

Postbase
21 – 27 Sep 2026TodayDayWeek
Wed23
09:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
09:00Fieldnote 2.4 is out
12:00New on the shelf: Kochere
14:15Cupping notes
16:30Studio tour
Manage channels