Disclosure: Independent guide from Fuxux, which is one of the tools compared. We are not affiliated with any other tool here. Every price, plan limit and directory listing was read from the vendor's own pages, or from the Claude and ChatGPT directories, on 22 October 2026. These change quickly, so check before you buy.
A year ago, "AI social media tool" meant a caption generator. Now you can ask Claude or ChatGPT to write a week of posts, and the chat schedules them in your scheduler. That works through a connector built on MCP (Model Context Protocol), which gives the assistant a small set of tools: list your accounts, create a post, schedule it, check the queue.
Plenty of schedulers now say they "work with AI". Fewer let you connect from Claude or ChatGPT with a simple sign-in. Fewer still do it on a free plan. This guide compares ten of them on the questions that decide whether it works for you.
Quick answer: five tools let you connect Claude or ChatGPT on a free plan: Buffer, Metricool, Pallyy, Typefully and Fuxux. Their free limits differ a lot, from 5 posts a month to 10 queued posts per channel. Postiz, Post Bridge, Publer, Vista Social and Hootsuite need a paid plan for it, or have no free plan at all. Pick by the networks you post to and how the price is counted, not by the AI feature, which is now similar across most of them.
What "works with ChatGPT and Claude" actually means
There are three levels, and vendor pages often blur them:
- Listed in the assistant's directory. In Claude you add it from the connectors directory; in ChatGPT, from the plugin directory. You sign in to the scheduler and approve access, with no key to copy. This is the easiest route.
- A hosted MCP server you add by hand. You paste a server URL as a custom connector. This still uses a sign-in on most tools, but in ChatGPT a custom connector needs a paid ChatGPT plan.
- An API key. This is for developer tools such as Claude Code or Cursor, or for automations. It is powerful, but often sits behind a higher plan or an add-on.
The questions that matter: can you connect with a sign-in, is it on the plan you can afford, which networks will it post to, and can it publish or only draft?
Comparison table
| Tool | AI connection on the free plan? | Claude directory | ChatGPT directory | Cheapest paid plan | Networks |
|---|---|---|---|---|---|
| Fuxux | Yes (3 accounts, 5 posts a month, no X) | Yes | Yes | $29/mo flat, 15 accounts | 14, incl. Telegram and Slack |
| Buffer | Yes (3 channels, 10 scheduled posts each) | Yes | Not found | $6/mo per channel ($5 billed yearly) | 12 |
| Metricool | Yes (1 brand, 20 posts a month, no LinkedIn or X) | Yes | Yes | From $25/mo ($20 yearly), up to 5 brands | 11 |
| Pallyy | Yes (1 social set, 15 posts a month, images only) | Yes | Yes | $25/mo per social set | 10 |
| Typefully | Yes (1 social set, 10 posts a month) | Yes | Not found (custom connector) | $99/yr, billed yearly only | 6, text-first |
| Postiz | No free plan (7-day trial) | Yes | Yes | $29/mo ($23 yearly), 5 channels | 30+, incl. Telegram and Slack |
| Post Bridge | No (MCP from the $39 plan) | Yes | Yes | $39/mo for MCP, 15 accounts | 10 |
| Publer | No (Business plan and up) | Not found | Not found | Business about $8 per social account a month, billed yearly | 13, incl. Telegram |
| Vista Social | No (all paid plans) | Not found | Not found | $99/mo, 15 profiles | 13 |
| Hootsuite | No free plan (14-day trial) | Not found | Not found | €99 per user/mo billed yearly; plan with publishing MCP not stated | Not stated |
"Not found" means we searched the directory on 22 October 2026 and the tool did not come up. Several of these tools can still be added by hand as a custom connector.
The free options
Fuxux
Fuxux is our tool, so read this with that in mind. It is listed in both Claude's connector directory and ChatGPT's plugin directory: you sign in and approve, and there is no key to copy. The connection is on every plan, including Free.
- What the assistant can do: list your connected accounts, publish now, schedule, save a draft, edit or reschedule a scheduled post, list the queue and read a short dashboard of stats.
- Networks: 14. Instagram, TikTok, YouTube, X, Facebook, LinkedIn, Threads, Pinterest, Bluesky, Discord, Twitch, Kick, Telegram and Slack. Telegram and Slack are rare in this list; of the free options here, only Fuxux posts to them.
- Price: flat, not per channel. Free is 3 accounts and 5 published posts a month (each network a post goes to counts as one) and does not include X. Creator is $29 a month for 15 accounts and unlimited posts. An API key, for Cursor or scripts, is a $5 a month add-on on paid plans.
- Weak spot: the free plan's 5 posts a month is the smallest here. It is enough to try the AI workflow, not to run a busy account.
Buffer
Buffer's MCP page says access is "included on every plan, including Free", and it connects with a sign-in. Its tools cover sharing now, adding to the queue, custom scheduling, drafts, ideas and post metrics. The free plan gives 3 channels with 10 scheduled posts each, the most room of any free option here. Paid plans are counted per channel, which is cheap for a few accounts and adds up for many. It was in Claude's directory but did not come up in ChatGPT's when we searched.
Metricool
Metricool is in both directories and connects with a sign-in on any plan, Free included. It is the strongest pick if your AI questions are about numbers: its connector covers analytics, ads accounts and best times to post as well as scheduling. The catch is the free plan: 1 brand and 20 posts a month, and its pricing page says it covers every network "except LinkedIn and Twitter".
Pallyy
Pallyy says its connector works "on every plan, free included", and it is in both directories. The assistant can create draft or scheduled posts and import images. Pallyy's own docs say it "cannot read analytics", and the free plan is 1 social set with 15 image posts a month.
Typefully
Typefully is built for writers on X, LinkedIn, Threads, Bluesky, Mastodon and Substack. Its free plan includes "Agents, API, MCP" with 10 posts a month, and it has a verified badge in Claude's directory. In ChatGPT it is a custom connector rather than a directory listing. If you mostly write text posts and threads, it is a good fit; if you post video to TikTok or Instagram, it is not.
The paid options
Postiz
Postiz covers the most networks (30+, Telegram and Slack included) and has a hosted MCP server on every plan. It is in both directories. There is no free plan: you get a 7-day trial, then plans start at $29 a month for 5 channels ($23 billed yearly). It is also open source, if you would rather host it yourself and handle each network's app approval.
Post Bridge
Post Bridge lists "MCP agent connect" on its $39 a month Marketer plan (15 accounts), and it is in both directories. Its connector has 16 tools, including media upload and analytics sync. It posts to 10 networks.
Publer
Publer's MCP is on the Business and Enterprise plans. Business is priced per social account (about $8 a month each, billed yearly, on the page we saw). It connects as a custom connector, and it was not in either directory when we checked. It does post to Telegram.
Vista Social
Vista Social's connector is "included with all paid plans" and advertises more than 100 tools across scheduling, analytics, inbox and reporting, the widest tool set here. Plans start at $99 a month for 15 profiles. It is aimed at teams and agencies.
Hootsuite
Hootsuite has separate MCP servers for publishing, inbox and listening. Its plans page lists only the listening connector, on Enterprise, so we could not confirm which plan includes publishing through Claude or ChatGPT. Standard starts at €99 per user a month, billed yearly. If you are already on Hootsuite, ask your account manager.
How to choose
| If you... | Look at |
|---|---|
| Want to try it free with a few accounts | Buffer (most free posts) or Fuxux (14 networks, sign-in from both directories) |
| Ask your AI mostly about analytics and ads | Metricool |
| Post to Telegram channels or Slack along with social | Fuxux, or Postiz if you need even more networks |
| Write text posts and threads for X, LinkedIn and Threads | Typefully |
| Manage many accounts and want one flat price | Fuxux ($29 for 15 accounts) or Post Bridge ($39 for 15) |
| Run an agency with inbox and reporting needs | Vista Social or Hootsuite |
Two more checks before you commit. First, count your posts, not just your accounts: a free plan with 5 or 10 posts a month disappears fast when one post goes to four networks. Second, check that the assistant can publish, not only draft, if you want it to run on its own. Some tools stop at drafts on purpose, which is safer but means you finish the job in their app.
How to connect one in five minutes
- Create an account with the scheduler and connect your social accounts there first. The assistant can only post where the scheduler can.
- In Claude, open Settings, then Connectors, and browse the directory. In ChatGPT, open Plugins and search. Add the tool, sign in and approve access.
- If the tool is not listed, add it as a custom connector with the server URL from its docs. In ChatGPT this needs a paid plan.
- Start with a safe request: "List my connected accounts", then "Draft a LinkedIn post about X and save it as a draft". Check the draft in the scheduler before you let the assistant publish.
For Fuxux, the step-by-step guides are on Fuxux for Claude and Fuxux for ChatGPT, and the technical details are in the MCP docs. For background on how this works, see how to schedule social media posts with MCP.
FAQ
Can ChatGPT post to Instagram or TikTok by itself?
Not by itself. ChatGPT needs a scheduler connected as a plugin or connector, and that scheduler holds the permission to post to your accounts. Instagram and TikTok also need the right account type: an Instagram professional account, and for TikTok, a scheduler approved for direct posting.
Do I need an API key?
Not for Claude or ChatGPT with the tools in the directories: you sign in and approve. API keys are for developer tools such as Cursor or Claude Code with a header, and for scripts.
Is it safe to let an AI assistant post for me?
Start with drafts and review them. The assistant only gets the tools the scheduler exposes, and you can remove the connection at any time from the assistant's settings or the scheduler. Treat "publish now" like giving a colleague the keys: fine once you trust the workflow.
Which tool has the most free posts?
Among the free options with a sign-in connection, Buffer: 3 channels with 10 scheduled posts each. Metricool allows 20 a month but leaves out LinkedIn and X.
Which ones post to Telegram or Slack?
From this list, Fuxux and Postiz post to both, and Publer posts to Telegram. Fuxux is the only one of them with a free plan.
The bottom line
The AI part has become table stakes: most good schedulers now give Claude and ChatGPT the same basic tools. Choose on the plain things: whether you can connect with a sign-in on the plan you will actually pay for, the networks you need, and how the price grows with your accounts. If you want to try the workflow today without a card, Fuxux's free plan connects to both assistants in a couple of minutes.
Originally published on the Fuxux blog.
