Schedule your social media
Or let your AI agent do it

One calendar for 30+ social networks, from Instagram and TikTok to LinkedIn and Bluesky. Or hand the keys to your AI agent over MCP, REST API and SDK.

Start 7-day free trial See all 30+ networks

No credit card · Cancel anytime · Works with Claude, Codex, Cursor and any MCP agent.

Developer? API, MCP & SDK →

Actual PostSider UI

Create Post

Templates Preview

Start writing, or try a

Drag & drop or select a file 2200

Who it's for

Social media scheduling for small teams, agencies and AI agents

AI agents

Builders and their AI agents. Draft, schedule and publish through MCP, the REST API or the Node SDK, on every plan.

Explore developer workflows →

Founders & creators

Solo founders, creators and small businesses. Plan the month in one calendar and publish to every network from it.

Explore the small business setup →

Agencies

Teams running several brands at once. Client approvals, unlimited seats from the Team plan and a workspace per client.

Explore the agency workflow →

And anyone tired of pasting the same post into five different apps.

Where PostSider shows up

For humans

One calendar for every network, with approval before anything goes live.

Plan the month at a glance, drag a post to a new slot, duplicate it to another network, and let a reviewer sign off before the queue publishes it.

Drag and drop posts across days and channels
Compose once, tailor per platform; the AI post checker flags what each network would reject
Snippets for the lines you reuse, CSV import for a month of posts (Pro and up)
Queues, best-time slots and approvals before publishing (Team plan and up)

June 2026

MonTueWedThuFri

Claude via PostSider MCP

Create me a post for Instagram with this photo.

On it. Drafted an Instagram post with your photo and queued it for Tuesday at 12:00.

y yourbrand

yourbrand Golden hour by the sea.

Scheduled · Tue 12:00

For your AI agent

Give your AI agent the keys to your social media.

Connect any MCP agent and let it draft, schedule and publish for you. Or call the REST API and Node SDK directly. Included on every plan, with no per-platform glue code.

Connect any MCP agent in one step
REST API and the typed @postsider/node SDK
One integration, every network
Same secure auth for humans and agents

+ any MCP agent

30+ networks from one calendar
4 ways to publish: dashboard, API, SDK, MCP
100 channels on one plan, no per-channel fees
AES-256 GCM encryption on every channel token
7 days full trial, no credit card

Everything in one place

A social media scheduler with an API built in.

Calendar, queues and approvals for your team. MCP, REST API and a Node SDK for your agents. Same posts, same calendar.

Drag-and-drop calendar

Plan weeks ahead, drag posts between days and channels, and, from the Team plan, let queues publish at the slots you set. The whole plan, one screen.

Agent bridge (MCP)

Expose publishing and analytics as tools any MCP agent can call.

REST API and Node SDK

A REST API and the typed @postsider/node SDK for your own pipelines.

30+ platforms

One post, every network, with a per-platform version where you need one.

Analytics

Track reach and performance for supported channels in one view.

Security by default

Encrypted tokens, hardened requests, least-privilege access.

How it works

Two ways in. One social media calendar.

Connect each network once. After that a person can schedule from the dashboard and an AI agent can schedule over MCP, REST or the SDK. Both land in the same queue, with the same approvals.

For people

Schedule from the dashboard

Plan the month in one calendar and drag posts between days and channels
Compose once, keep a per-network version where it matters
Send drafts for approval before anything goes live (Team plan and up)
Import a month of posts from CSV (Pro and up)

See every feature →

For AI agents and code

Schedule over MCP, REST or the SDK

Connect over MCP: hosted at mcp.postsider.com with OAuth, or run @postsider/mcp locally
Call the REST API from any backend, cron job or workflow tool
Use the typed @postsider/node SDK in TypeScript or Node.js
Default to drafts, read the post back by ID, and keep a person on the approval step

POST /public/v1/posts
{
  "type": "draft",
  "date": "2026-11-16T09:00:00Z",
  "posts": [{
    "integration": { "id": "<channel id>" },
    "value": [{ "content": "Release notes are out.", "image": [] }],
    "settings": { "__type": "x", "who_can_reply_post": "everyone" }
  }]
}

Open the developer platform →

Platforms

Every network that matters.

Publish the same content everywhere, or fine-tune per channel. New networks added all the time.

+ more

Security

Your keys, encrypted. Your data, yours.

Channel tokens are encrypted and requests are hardened. The same rules apply whether a person or an AI agent is posting.

AES-256-GCM encryption

Every channel token encrypted at rest.

Hardened requests

Protection against forged and redirected requests (SSRF, CSRF).

Rate limiting

Abuse and overage protection built in.

Isolated tokens

Per-channel, least-privilege access.

What happens next

From click to first scheduled post in three steps.

Try PostSider alongside your current setup. You do not need to cancel or migrate anything before you know it works for you.

Start 7-day free trial

No credit card · Cancel anytime · When the trial ends, scheduled posts pause until you pick a plan; nothing is charged.

01

Create your account

Start the 7-day trial and land directly in the first-run setup.
02

Connect one channel

Pick the network you already use. You can add the rest after you have seen the workflow.
03

Schedule the first post

Use the calendar, call the API, or let an agent do it. The goal is the same: get one real post into the queue.

Pricing

Social media scheduling plans from $20 a month.

Every paid plan includes the calendar, AI post checker and rewrite, the agent bridge (MCP), REST API, Node SDK and webhooks. Higher tiers add more capacity and advanced workflow features.

30+ networks API, MCP & SDK on every plan Unlimited seats from Team No credit card

Standard

Best for solo creators and founders.

$20/mo

Start 7-day free trial

1 seat
5 channels
400 posts per month
Schedule to 30+ platforms
Drag-and-drop calendar
Media library
Basic analytics
AI post checker & rewrite
Agent access
MCP and REST API
SDK access & Webhooks

Team

Best for small teams and brands.

$35/mo

Start 7-day free trial

Unlimited team members
10 channels
Unlimited posts per month
Schedule to 30+ platforms
Drag-and-drop calendar
Media library
AI post checker & rewrite
Automated queues & sets
Advanced analytics
Agent access
MCP and REST API
SDK access & Webhooks
Approval workflows
Multi-user roles

Recommended

Pro

Best for growing teams and small agencies.

$45/mo

Start 7-day free trial

Unlimited team members
30 channels
Unlimited posts per month
Schedule to 30+ platforms
Drag-and-drop calendar
Media library
AI post checker & rewrite
Automated queues & sets
Auto-plugs & first comments
CSV bulk import
Advanced analytics
Agent access
Snippets & templates
MCP and REST API
SDK access & Webhooks
Approval workflows
Multi-user roles
Priority publishing
Audit log

Ultimate

Best for agencies with many clients.

$90/mo

Start 7-day free trial

Unlimited team members
100 channels
Unlimited posts per month
Schedule to 30+ platforms
Drag-and-drop calendar
Media library
AI post checker & rewrite
Automated queues & sets
Auto-plugs & first comments
CSV bulk import
Advanced analytics
Agent access
Snippets & templates
MCP and REST API
SDK access & Webhooks
Build custom OAuth apps
Approval workflows
Multi-user roles
Priority publishing
Audit log
Priority support

7-day free trial on every plan. No credit card to start. Cancel anytime.

Not sure which plan fits? Ask the founder →

Switching tools

Coming from Buffer or Hootsuite?

We did the homework for you: real prices, honest trade-offs, and a step-by-step way out that does not drop a single scheduled post.

7 Buffer alternatives, compared

Pricing at real channel counts, free plans and API access in three tables.

Read the breakdown →

PostSider vs Buffer

Where the $20 flat plan wins, and where Buffer honestly still does.

Read the breakdown →

The migration checklist

Move your queue from Buffer or Hootsuite with zero missed posts.

Read the breakdown →

FAQ

Social media scheduling questions, answered.

Which platforms do you support?

More than 30 social networks: X, Instagram, TikTok, YouTube, LinkedIn (profiles and Pages), Facebook, Threads, Pinterest, Google Business Profile, Bluesky, Mastodon, Discord, Telegram, Slack, WordPress, Medium, Dev.to, Twitch, Nostr, Dribbble and more. The full list is on the Platforms page.

How does my AI agent connect?

PostSider exposes scheduling, publishing and analytics through a Model Context Protocol (MCP) server. Connect Claude, ChatGPT, Codex, Cursor or any MCP client in one step, or call the REST API and the @postsider/node SDK directly. MCP, API and SDK access are on every plan, including the trial.

Is my data secure?

Yes. Channel tokens are encrypted with AES-256-GCM, requests are hardened against SSRF and CSRF, and access is rate-limited and isolated per channel with least privilege.

Does PostSider have a social inbox for comments and DMs?

No. PostSider covers planning, approvals, scheduling, publishing and analytics. It does not pull comments or direct messages into a shared inbox, so if you reply to your audience from one place today, keep that tool next to PostSider.

What is included in the trial?

Seven days of the full product on your own channels: the calendar, composer, queues, approvals, AI post checker, the MCP agent bridge, REST API and SDK. No credit card required to start. Connect a channel and schedule a real post on day one. When the 7 days end, scheduled posts pause until you pick a plan: nothing is charged automatically, and your channels, drafts and calendar stay where you left them.

Can clients or teammates approve posts before they go live?

Yes, on the Team, Pro and Ultimate plans. Send a draft for review and the reviewer approves it, rejects it with a comment or asks for changes before it is scheduled. Agencies can keep each client in its own workspace with separate channels and roles. Plans are month to month, so you can upgrade, downgrade or cancel anytime.

How is PostSider priced compared to per-channel tools?

PostSider uses flat tiers instead of per-channel billing: $20 per month for 5 channels, $35 for 10, $45 for 30 and $90 for 100, with unlimited team members from the $35 plan. Adding another network costs nothing until you cross a tier.

How does migrating from another tool work?

Connect your channels to PostSider in parallel (this does not affect your old tool), rebuild your posting slots, then bring your queue over manually or via CSV import. Run both tools for one overlap week, then cancel the old one.

Who is behind PostSider?

One person: Lukasz Blania, a solo founder building PostSider from Poland under Lumi Zone. Support emails land with the person who wrote the code.

How do the AI features work?

PostSider ships an AI post checker and a per-network caption rewrite. Use the built-in AI or bring your own OpenAI API key. The AI does not write posts from scratch: it checks what you or your agent drafted against each network and rewrites the caption when you ask.

Who builds this

One person. No support maze.

I'm Lukasz. I design, build and run PostSider myself, from Poland. That means the person reading your support email is the person who wrote the code, and the roadmap follows what users actually ask for, not a committee.

Read the full story LinkedIn GitHub

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