Roo Code + PostAxis

Post to social media from Roo Code

Add PostAxis to Roo Code’s MCP settings and any mode can draft and schedule posts: announce a merge, share release notes or plan a launch week.

One entry in mcp.json
Streamable HTTP transport
Works in every Roo mode

Connect Roo Code Start for $0

Set up Roo Code with PostAxis

Plug PostAxis into Roo Code once, then talk to it like you would to whoever runs your accounts. Every click is in the full guide below.

Plug in about 2 minutes

Step 1 of 2

Add PostAxis to Roo’s MCP settings

Paste one entry into Roo Code’s MCP settings with the streamable-http transport.

PostAxis account
A connected social account
Roo Code installed

mcp_settings.json

{
  "mcpServers": {
    "postaxis": {
      "type": "streamable-http",
      "url": "https://postaxis.io/api/mcp"
    }
  }
}

Talk

Step 2 of 2

Then tell Roo Code what you need

Roo Code picks the PostAxis tools it needs. Scheduled posts go out on time whether or not the chat is still open.

Try asking

Which accounts can you post to?
What goes out this week?
Keep that one as a draft

Announce the feature we just merged on X and LinkedIn tomorrow at 9:00.

Scheduled for tomorrow 9:00: an X post and a LinkedIn post about the new export feature.

via PostAxis

Example answer · lands in your PostAxis calendar

Full setup guide for Roo Code

Every step from a new PostAxis account to your first scheduled post. Takes about 2 minutes once your accounts are connected. Want ready-made workflows? Read the full Roo Code guide

1
Create your PostAxis account
Sign up at app.postaxis.io. Every plan starts with a 7-day free trial and includes MCP access with OAuth sign-in. Create an account
2
Connect your social accounts
Open Accounts in PostAxis and connect the networks you want to post to: Instagram, TikTok, YouTube, X, LinkedIn, Facebook, Threads or Telegram. Your agent can only post to accounts connected here, and it never sees your social media passwords. Open Accounts
3
Open MCP settings
In Roo Code click the MCP icon, then Edit Global MCP (all projects) or Edit Project MCP (.roo/mcp.json).

Add the PostAxis entry

Paste this. If mcpServers already exists, add only the "postaxis" entry.

Copy this

{
  "mcpServers": {
    "postaxis": {
      "type": "streamable-http",
      "url": "https://postaxis.io/api/mcp"
    }
  }
}

5
Sign in
Save the file. If Roo asks you to authenticate, approve on the PostAxis page in your browser.
6
Ask Roo to post
From any mode, ask for a post. Roo asks before each tool call unless you allow it.

What can Roo Code do with PostAxis?

Everything PostAxis does in the dashboard that makes sense to do by asking: writing, scheduling, editing, publishing and checking your queue.

Sentences in, posts out

Describe the post in your own words. Roo Code turns it into posts and PostAxis handles the scheduling.

Every network you run

Instagram, TikTok, YouTube, X, LinkedIn, Facebook, Threads and Telegram, from a single message.

Checked before it’s saved

Caption length, media count, video length and format are checked for every network before anything is saved.

Weeks ahead in one go

Ask for a week or a month. Roo Code can dry-run up to 50 posts at once, show you the plan, then schedule it.

Your images and video

Attach images and videos from a link, or get a one-time upload link for files on your computer.

Your accounts, your call

Roo Code signs in as you and can only reach accounts connected in your workspace. Cut it off from Settings whenever you like.

What is Roo Code?

Roo Code is an open-source AI coding agent for VS Code with custom modes. It connects to MCP servers configured globally or per project.

With PostAxis added, any Roo mode can draft and schedule posts about your work.

What can you ask Roo Code to post?

Brief it like a person: what it’s about, where it goes, when. Four requests that work well with Roo Code:

Release notes
Turn a release into posts
Read CHANGELOG.md, write an X post and a LinkedIn post about this release and schedule both for 17:00 today.
To Roo Code
From a pull request
Announce what you merged
Summarise the feature in this branch as a short X post and a Threads post, and schedule them for tomorrow at 10:00.
To Roo Code
Weekly digest
Post a weekly changelog
Summarise this week’s commits as a “what’s new” post and publish it to Telegram and LinkedIn now.
To Roo Code
Check the queue
Fix what won’t publish
List my scheduled posts for this week and fix any that break Instagram’s or X’s rules.
To Roo Code

How does Roo Code talk to PostAxis?

Through MCP, the Model Context Protocol: an open standard for giving AI apps tools. PostAxis runs an MCP server; Roo Code connects to it and gets 11 tools that work on your account, nothing more. Full MCP reference

From your message to a scheduled post

What happens between you hitting enter and the post showing up in your calendar.

You write one message: what, where, when
Roo Code looks up your accounts and the limits of each network you named
It drafts a version per network and sends them to PostAxis
PostAxis checks every version and saves it as scheduled, a draft or live
The post sits in your calendar, editable until it goes out

Roo Code + PostAxis

Server: https://postaxis.io/api/mcp
Transport: Streamable HTTP
Sign-in: OAuth 2.1

Tools Roo Code discovers

list_workspacesYour PostAxis workspaces
list_accountsConnected social accounts per workspace
get_platform_rulesCaption limits and media rules per network
upload_media_from_urlPull an image or video into your media library
create_upload_linkOne-time link for uploading a local file
create_postDraft, schedule or publish one post
create_posts_bulkSchedule up to 50 posts in one call
list_postsPosts by status or date range
get_postOne post with its per-network status
update_postEdit text, media or time before it goes out
delete_postRemove a draft or scheduled post

Does Roo Code write a different version for each network?

It can, and it should: X counts characters, LinkedIn rewards a longer read, Telegram has no title. Name the networks in one request and Roo Code sends one post with a version per network. PostAxis rejects any version that breaks that network’s limits before it is saved.

Share the 2.0 release with the screenshot from our blog: a punchy line on X, a short story on LinkedIn, the full changelog on Telegram. All at 14:00.

Done. Here’s what I did:

X: 1 post, 212 characters, screenshot attached
LinkedIn: 1 post, 4 short paragraphs, screenshot attached
Telegram: the full changelog, screenshot attached
Scheduled together for 14:00, one post ID

via PostAxis

Example conversation

How does Roo Code sign in to PostAxis?

Roo Code signs in to PostAxis, never to your social networks. Your Instagram, X or LinkedIn accounts stay connected to PostAxis, and you can revoke Roo Code’s access at any time.

Every plan✓ Used by Roo Code

OAuth sign-in

Roo Code opens the PostAxis sign-in in your browser
You log in and click Approve
It gets access to your account only, until you revoke it

Best for apps you use yourself: ChatGPT, Claude, Cursor, Codex and most others

API add-on

API key

Create a key under Settings → API keys
Send it as Authorization: Bearer KEY, or in the URL for clients that only take a URL
Revoke the key any time and access stops at once

Best for servers and automations with no browser: n8n, Grok, Manus, headless agents

If something doesn’t work

The most common problems when connecting Roo Code, and how to fix them.

Roo doesn’t open a sign-in

Add "headers": { "Authorization": "Bearer YOUR_API_KEY" } to the postaxis entry instead. Keys need the API add-on.

The agent says no accounts are connected

Connect at least one social account under Accounts in PostAxis. If you use several workspaces, tell the agent which one, for example “use my Acme workspace”.

401 Unauthorized or “sign in again”

The sign-in expired or was revoked. Reconnect from your agent (it opens the PostAxis sign-in again). With an API key, check the key is still active under Settings → API keys.

A post was rejected before saving

PostAxis checks each network’s rules first: caption length, media count, video length and format. The error says what to change; ask the agent to fix it and try again.

Posts are scheduled at the wrong time

Say the timezone in your request, for example “9:00 Europe/Berlin”. Without one, the agent uses the timezone it was told or UTC.

I want to stop an agent from posting

Open Settings → API keys in PostAxis. Revoke the agent under Connected agents, or revoke its API key. It loses access immediately.

Roo Code and PostAxis: questions

Global or project settings?

Use the global MCP settings to have PostAxis in every project, or .roo/mcp.json to share it with a team in one repository.

What is the PostAxis MCP server?

It’s a remote Model Context Protocol server at https://postaxis.io/api/mcp that gives AI agents 11 tools to list your accounts, upload media and create, schedule, edit and delete posts in PostAxis.

Which social networks are supported?

Instagram (posts, Reels, carousels), TikTok (videos and photo posts), YouTube Shorts, X, LinkedIn, Facebook Pages, Threads and Telegram channels.

How much does it cost?

MCP access with OAuth is included in every PostAxis plan, and every plan starts with a 7-day free trial. API keys need the API add-on.

What stops an agent from posting something wrong?

PostAxis checks every post against each network’s rules before saving, the agent can preview bulk plans without saving them, everything shows up in your calendar, and you can revoke an agent at any time in Settings → API keys.