MCP (Model Context Protocol) is an open standard that lets AI assistants connect to external tools. Originally created by Anthropic, it's now supported by OpenAI, Cursor, Windsurf, and many more. It means your AI can directly schedule your social media posts through posterly.

Does this work with ChatGPT?

Yes. ChatGPT Desktop supports MCP servers. Add the posterly config to ChatGPT's MCP settings and you can schedule posts directly from ChatGPT.

Which AI clients are supported?

Any MCP-compatible client works: Claude Desktop, ChatGPT, Claude Code, Cursor, Windsurf, Cline, Continue, Zed, OpenAI Codex, and any future client that supports MCP. The setup is the same — just add the config JSON.

Do I need to keep the posterly dashboard open?

No. Once set up, your AI talks directly to the posterly API. You never need to open the dashboard to schedule posts — though it's still there if you want it.

Can I use the REST API directly?

Yes. The API add-on includes full REST API access at /api/v1/. Use your API key as a Bearer token. See the interactive docs at /reference.

What happens if I cancel the add-on?

Your API keys stop working at the end of the billing period. Your posts, accounts, and base subscription are not affected.

Works with Claude, ChatGPT, Cursor, Windsurf & more

Schedule posts from any AI assistant

Connect posterly to your favourite AI tool via MCP. Say "post this photo to my Instagram tomorrow at 9am" and it just happens.

Get started — $7/mo API reference View setup guide

Claude

ChatGPT

Cursor

Any MCP Client

Works with every MCP client

posterly's MCP server works with any app that supports the Model Context Protocol — the open standard for connecting AI assistants to external tools.

Claude Desktop

Anthropic's desktop app for Claude

ChatGPT

OpenAI's ChatGPT desktop app

Claude Code

Anthropic's CLI for Claude

Cursor

AI-powered code editor

Windsurf

AI-powered code editor by Codeium

Cline

Autonomous coding agent for VS Code

Continue

Open-source AI code assistant

Zed

High-performance code editor

OpenAI Codex

OpenAI's coding agent CLI

What you can say to your AI

"Post this photo to my @brand Instagram tomorrow at 9am"

Schedule posts with natural language

"Show me my upcoming posts for this week"

View your content calendar

"When's the next good time to post?"

Find optimal posting slots

"List all my connected accounts"

See your linked platforms

"Upload this image and schedule it to LinkedIn"

Upload media and post in one step

"Post this caption to Twitter and Threads"

Multi-platform publishing

MCP Tools

Your AI assistant uses these tools behind the scenes when you ask it to manage your posts.

whoami

Show the user, workspaces, and scopes your API key can access.

list_accounts

Show all connected social accounts — platform, username, ID.

list_brands

Show all brands/clients you can access, with their IDs, workspaces, and assigned account counts.

get_brand

Inspect one brand/client in more detail — workspace, source, linked legacy ID, and assigned account count.

list_brand_accounts

Show the connected social accounts assigned to a specific brand/client.

get_brand_profile

Read the saved brand profile — tone, audience, keywords, dos and don’ts, and visual guidance.

create_post

Schedule or immediately publish a post. Supports caption, media, and scheduling.

list_posts

View upcoming, published, or failed posts. Filter by platform or status.

find_available_slot

Find open posting times that respect 1-hour gaps and your preferred hours.

upload_media

Upload images or videos. Returns a URL to use when creating a post.

generate_image

Create AI images with Nano Banana — prompt, aspect ratio, style, up to 4K resolution.

get_post

Get details of a specific post — caption, status, media, and scheduled time.

update_post

Edit a scheduled post — change caption, reschedule, or swap media.

delete_post

Cancel and delete a scheduled or draft post.

get_account_analytics

Follower growth, reach, views, and engagement rate for Instagram, LinkedIn, or Google Business Profile.

get_post_analytics

Per-post likes, comments, reach, impressions, saves, shares, and plays.

Setup in 3 steps

Takes about 2 minutes. You'll need a posterly account and an MCP-compatible AI client.

Enable API access in posterly

Go to Dashboard → API & MCP and enable the API add-on ($3/month). Then click "Create Key" and copy your key.

Add posterly to your AI client

Choose your client below and add the config. Replace the key with yours:

Open Claude Desktop → Settings → Developer → Edit Config

claude_desktop_config.json

{
  "mcpServers": {
    "posterly": {
      "command": "npx",
      "args": ["-y", "posterly-mcp-server"],
      "env": {
        "POSTERLY_API_KEY": "pst_live_your_key_here"
      }
    }
  }
}

Not sure how? Copy and paste into your AI assistant — it'll handle the rest.

Restart your client and start posting

Restart your AI client. You should see "posterly" in the MCP tools list. Try saying: "List my posterly accounts"

HTTP

Using a browser-based agent? Skip the install.

Claude in Chrome, ChatGPT Atlas, Cursor in browser, and any other web-based MCP client can talk to posterly directly over HTTP — no local subprocess needed. Same key, same paywall, same 16 tools.

POST https://www.poster.ly/api/mcp
Authorization: Bearer pst_live_your_key_here
Content-Type: application/json

{ "jsonrpc": "2.0", "id": 1, "method": "tools/list" }

Auto-discovery: hit /.well-known/mcp/server-card.json for the full server card, or /.well-known/oauth-protected-resource for auth metadata.

Pricing

API access is an add-on to any posterly plan.

API & MCP Access

$3/month

Add-on to any posterly plan (from $7/mo)

Works with Claude, ChatGPT, Cursor & more
12 MCP tools + full REST API
100 API requests per hour
Up to 3 API keys
All 11 supported social platforms

Get started

FAQ

Ready to schedule posts from your AI?

Start with posterly at $7/mo, add API access for $3/mo.