Perplexity Computer + PostAxis

Schedule social media with Perplexity Computer

Perplexity Computer takes a goal, splits it into tasks and works through them with connectors. Add PostAxis as a custom remote connector and those tasks can end with posts scheduled on your channels.

Custom remote connector, OAuth
Research, then post, in one task
Works with Scheduled Tasks

Open Perplexity Start for $0

Set up Perplexity Computer with PostAxis

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

Plug in about a minute

Step 1 of 2

Add a custom remote connector

Add PostAxis under Settings → Connectors as a custom remote connector and sign in with OAuth. Every Computer task can then use the PostAxis tools.

PostAxis account
A connected social account
Perplexity Computer installed

MCP server URL

https://postaxis.io/api/mcp

Perplexity Computer is on Pro and Max plans; custom MCP connectors are on Pro, Max and Enterprise.

Talk

Step 2 of 2

Then tell Perplexity Computer what you need

Perplexity Computer 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

Research this week’s news in our industry and schedule three LinkedIn posts with our take, Tuesday to Thursday at 9:00.

Done: three LinkedIn posts scheduled Tuesday to Thursday at 9:00, each with the source story summarised.

via PostAxis

Example answer · lands in your PostAxis calendar

Full setup guide for Perplexity Computer

Every step from a new PostAxis account to your first scheduled post. Takes about a minute once your accounts are connected.

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 Connectors
In Perplexity open Settings → Connectors and choose + Custom connector → Remote.
4
Add PostAxis
Name it PostAxis, paste the MCP URL and choose OAuth for authentication.
Copy this
```
https://postaxis.io/api/mcp
```
5
Sign in and approve
Sign in with your PostAxis account and click Approve.
6
Give Computer a goal
Start a Computer task and describe the outcome. Add a Scheduled Task to repeat it every week.

What can Perplexity Computer 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. Perplexity Computer 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. Perplexity Computer 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

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

What is Perplexity Computer?

Perplexity Computer is Perplexity’s agentic workspace: you give it a goal, it splits the goal into subtasks, uses many models, connectors and Scheduled Tasks, and delivers a finished result.

With PostAxis as a connector, research tasks can end with posts written and scheduled, for example a weekly roundup of news in your industry.

What can you ask Perplexity Computer to post?

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

Research
Research, then post
Find three news stories in our industry from this week and schedule a LinkedIn post with our take on each, Tuesday to Thursday at 9:00.
To Perplexity Computer
Long task
Fill a 30-day calendar
Plan 30 days of posts for X, LinkedIn and Threads, validate them all, show me the calendar and schedule after I approve.
To Perplexity Computer
Report
Review the week
Tell me which posts published this week and which failed, and reschedule the failed ones for tomorrow.
To Perplexity Computer
Launch day
Tell people what’s new
Our CSV export is live. One line for X, a short paragraph for LinkedIn, both out tomorrow morning at 9:00.
To Perplexity Computer

How does Perplexity Computer talk to PostAxis?

Through MCP, the Model Context Protocol: an open standard for giving AI apps tools. PostAxis runs an MCP server; Perplexity Computer 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
Perplexity Computer 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

Perplexity Computer + PostAxis

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

Tools Perplexity Computer 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 Perplexity link to its sources in the posts?

If you ask it to. Say “add the source link to each post” and Perplexity includes it in the copy before PostAxis schedules it.

Can Perplexity Computer schedule 30 days of posts at once?

Yes. Perplexity Computer can send up to 50 posts in one bulk call. Ask it to validate first: PostAxis checks every post and saves nothing, so you can review the plan before it is scheduled.

Plan 30 days of posts for X and LinkedIn about our product, validate them, show me the calendar, then schedule.

Done. Here’s what I did:

Validated 30 posts, each going to X and LinkedIn, 0 problems
Showed the calendar and waited for approval
Scheduled all 30 for 10:00 each day

via PostAxis

Example conversation

How does Perplexity Computer sign in to PostAxis?

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

Every plan✓ Used by Perplexity Computer

OAuth sign-in

Perplexity Computer 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 Perplexity Computer, and how to fix them.

I don’t see custom connectors

Custom MCP connectors are on Pro, Max and Enterprise. Perplexity Computer itself needs Pro or Max.

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.

Perplexity Computer and PostAxis: questions

Can Perplexity post on a schedule by itself?

Yes. Pair the PostAxis connector with a Scheduled Task, for example a weekly content plan, and Computer creates the posts each time it runs.

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.