cometpost

In development — not yet available

Schedule once. Publish everywhere.

cometpost is a social media scheduling and cross-posting tool. Connect your accounts once, write a post once, adjust it for each platform, pick a time — and cometpost publishes it for you across TikTok, YouTube, Instagram, Threads, Facebook Pages and X.

See how it works Get in touch
What it does

One composer, six destinations, no copy-paste

Posting the same thing to six places means six logins, six upload screens and six slightly different sets of rules. cometpost collapses that into a single workflow without pretending the platforms are identical.

Compose once

Write the caption, attach the video or images, add hashtags and links in one editor. The draft is the single source of truth for every destination.

Tailor per platform

Override the caption for X's length limit, swap the thumbnail for YouTube, change hashtags for TikTok. Overrides are per-platform and optional — leave them alone and the shared version is used.

Schedule and forget

Pick one time for everything or a different time per platform. cometpost queues the post and publishes it on schedule — you do not need to be online.

See what happened

A per-post status log: published, pending, or failed with the reason the platform gave. Failed publishes can be retried without rebuilding the post.

Validate before you post

Each platform has its own limits on caption length, file size, aspect ratio and duration. cometpost checks the draft against them up front instead of failing at publish time.

Your accounts stay yours

Every connection is a standard OAuth authorisation you grant and can revoke from the platform's own settings at any time. cometpost only ever asks for the permissions it needs to publish what you scheduled.

How it works

Four steps, then it runs itself

  1. Connect your accounts

    Authorise cometpost on each platform you want to publish to, using that platform's own login screen. cometpost never sees or stores your platform password.

  2. Compose your post

    Upload your media and write your caption once. Choose which connected accounts this post should go to.

  3. Customise per platform

    Adjust anything that should differ — caption, title, thumbnail, hashtags, privacy setting. Anything you don't override stays as the shared version.

  4. Schedule it

    Publish now or set a time. cometpost handles the upload, the platform's processing delay and the retry if a platform is briefly unavailable, then records the result.

Platforms

Where cometpost publishes

Each integration uses the platform's official public API and the permissions the platform grants for content publishing. Availability of any integration depends on that platform's API approval, which is granted by the platform and not by us.

  • TikTokVideo posts with caption, privacy level and interaction settings.
  • YouTubeVideo and Shorts uploads with title, description, tags and visibility.
  • InstagramFeed images, carousels and Reels on Instagram professional accounts.
  • ThreadsText posts with images or video.
  • Facebook PagesPosts to Pages you manage, with text, link, image or video.
  • XPosts with text and media, within the limits of your X API access tier.
API & MCP

Let your AI agent do the posting

cometpost exposes a public HTTP API and an MCP (Model Context Protocol) server. That means an AI assistant you already use can draft, schedule and publish through your connected accounts, with your authorisation, instead of handing you text to paste somewhere else.

Public HTTP API

A REST API covering the same operations as the interface: list connected accounts, create a draft, set per-platform overrides, schedule, check status, cancel. Scoped API keys, so a key can be limited to the accounts and actions you choose.

MCP server

Point an MCP-capable client — Claude, an IDE assistant, your own agent — at cometpost and it gets typed tools for scheduling and publishing. No scraping, no browser automation, no sharing your platform passwords with a bot.

You stay in control

Agent access is a credential you issue and can revoke. You decide whether an agent can publish immediately or only create drafts that you approve first.

Within platform rules

Agent-scheduled posts go through exactly the same official APIs and the same platform permissions as posts you make by hand. Automation is not a way around a platform's terms, and cometpost does not treat it as one.

Who it's for

Built for people who publish the same thing in several places

Solo creators

You make one video and it belongs on TikTok, Shorts and Reels. You would rather spend that hour making the next one.

Small teams and agencies

A handful of accounts across several platforms, a content calendar, and a need to see what actually went out and what failed.

Developers and agent builders

You want publishing as an API call or an MCP tool, not a browser window — and you want it to run on official platform APIs so it does not break or get you banned.

Status

Where the product actually is

cometpost is being built right now. We would rather tell you that plainly than dress up a work in progress as a launch.

What is true today

  • The product is in active development.
  • Platform API access is being applied for, platform by platform.
  • This site is where launch news will appear first.

What we are not claiming

  • No customer numbers, testimonials or case studies — there are none yet.
  • No press coverage or partner logos.
  • No sign-up, no billing and no purchasable plan on this site today.
  • No accounts, no mailing list — this site collects nothing about you.

Each platform integration goes live only once that platform has approved our API access. We will say which ones are live when they are, and we will not list one before then.

Contact

Get in touch

There is no sign-up form and no mailing list. If you want to be told when cometpost opens, or you have a question about how it works, email us and a person will reply.

General and early access

hello@cometpost.app
Questions about the product, the API or the MCP server. Say which platforms you publish to — it tells us what to build first.

This website sets no cookies, runs no analytics and collects nothing about you. Emailing us is the only way it can receive your details, and we use them only to answer you.

FAQ

Questions we expect

Does cometpost read my messages or my followers?

No. cometpost requests the permissions needed to identify which account you connected and to publish content you have authored and scheduled. It does not read direct messages, does not export follower lists, and does not collect data beyond what the granted permissions require. This is set out in detail in the privacy policy.

Do you use my content to train AI models?

No. Content you upload or compose is used to publish that content to the platforms you chose, and for nothing else. We do not use customer content to train machine-learning models, and we do not sell or license it.

How do I disconnect an account?

From inside cometpost, or from the platform's own connected-apps settings. Revoking access there immediately stops cometpost from publishing to that account. Instructions for each platform are on the data deletion page.

What happens if a platform changes or revokes its API?

The integration for that platform stops working until it can be fixed, and we will say so. Platform APIs are outside our control; this is stated plainly in the terms of service rather than buried.

Is scheduling with a bot against the platforms' rules?

Publishing through a platform's official content-publishing API, with permission the account holder granted, is a supported use of those APIs. What is not allowed is spam, bulk duplicate posting, impersonation and working around rate limits — those are prohibited by cometpost's terms as well as by the platforms.

What will it cost?

Not decided yet. When there is a price, it will be published here. We are not taking payment or pre-orders and there is nothing purchasable on this site.

Where is my data stored, and can I delete it?

Account data and OAuth tokens are stored encrypted with our hosting and database providers. You can delete your account and all associated data at any time — the data deletion page gives the exact steps and our response time.