9 best social media MCP servers for posting in 2026
By Alex, Founder, KreatorMesh · Published 6 September 2026 · Updated 5 October 2026
MCP is how an AI assistant gets hands. Connect a server and Claude or ChatGPT can publish, schedule and read results instead of drafting captions for you to paste around. The space is young — most servers are under a year old — and the quality varies more than the marketing suggests. Below are nine worth knowing, compared on the things that decide the choice: which platforms, how you authenticate, what it costs, and what it will not do. One of them is ours, and the entry says so.
TL;DR
- Free and broad: Buffer — MCP on every plan including free, per-channel pricing after that.
- Simplest full cross-poster: post bridge — ten platforms, unlimited posts, from $39/mo, MCP and REST included.
- Free with X included: SocialRobot — but X only on the $29 Pro plan; free and Starter exclude it.
- Building your own agent: Ayrshare for a mature unified API from $149/mo; Postiz if you would rather self-host for free.
- Deciding what to post, not just posting it: KreatorMesh — the only one whose tools check a draft against rules learned from your own audience.
Quick comparison
Pricing read from each vendor’s own pricing page on the date shown. Scroll sideways on a phone.
| Tool | Best for | Platforms | Pricing | Trade-off |
|---|---|---|---|---|
| Buffer | Anyone who wants an MCP server attached to a scheduler they already know, at no extra cost | The major networks; per-channel billing | Free (3 channels, 10 queued posts per channel); Essentials $6/channel/mo billed monthly, $5 billed yearly; Team $12/channel/mo, $10 billed yearly | Per-channel pricing scales with ambition; publishing-only |
| post bridge | Content that already exists and needs distributing everywhere | 10 — X, Instagram, TikTok, YouTube, Facebook, LinkedIn, Pinterest, Bluesky, Threads, Google Business | Marketer $39/mo (15 accounts); Operator $99/mo (99 accounts, then $1 each). Unlimited posts on paid plans; free users get 5 a month | Publishing is the product; nothing before or after it |
| SocialRobot | Trying agent-driven scheduling for free, if you do not need X | 9 incl. Instagram, LinkedIn, Bluesky, Threads, Facebook, TikTok; X on Pro only | Free (2 accounts, 15 posts/mo, no X); Starter $19/mo (5 accounts, no X); Pro $29/mo (20 accounts, X included) | X excluded below the $29 tier; smaller brand, thinner track record |
| Blotato | Creators who want AI generation, DM automation and publishing in one place | 9 platforms via one API and MCP server | Starter $29/mo (20 accounts, 1,250 AI credits); Creator $97/mo (40 accounts); Agency $499/mo. 7-day trial, API excluded from trial | Broad feature surface means more to learn; API not in the trial |
| Metricool | One brand that wants analytics and a free MCP | Most networks; free plan excludes LinkedIn and X | Free (1 brand, 20 posts/mo, MCP included); Starter from $20/mo (up to 10 brands); Advanced from $53/mo | Free plan drops LinkedIn and X; analytics-led rather than posting-led |
| Postiz | Developers who want to own the stack | 30+ including developer communities (Dev.to, Hashnode, Discord) | Self-host free (open source); hosted Standard $29/mo (5 channels); Team $39/mo (10); Pro $49/mo (30); Ultimate $99/mo (100) | Self-hosting means owning the server, the tokens and the 2am failed upload |
| Ayrshare | Building a product that publishes on behalf of many users | 14+ networks | Premium $149/mo (1 profile); Launch $299/mo (10 profiles, 28-day trial); Business $599/mo (30 profiles); Enterprise custom | Priced for products, not people — the cheapest plan is $149 |
| Sociality | Teams that want an assistant to read analytics and benchmark competitors | Major networks, with owned-account and public competitor data | Credit-based. Free Starter tier with 1,000 one-time credits; paid Growth and Scale tiers above | Mostly read-only — reporting and benchmarking rather than publishing |
| KreatorMeshours | Deciding what to post and whether it worked, not only posting it | 10 — TikTok, Instagram, YouTube, X, LinkedIn, Facebook, Threads, Pinterest, Bluesky, Google Business | Starter $12/mo (3 accounts); Creator $29/mo (15 accounts, API and MCP); Pro $49/mo (unlimited). No free tier; 5-day trial needs a card | No free tier; MCP needs Creator or above; the youngest server on this list |
The 9 tools, in detail
1. Buffer
buffer.com
- What stands out
- MCP is available on every plan including the free one, and the free plan also includes an API key with 3,000 requests a month. For a lot of people that is the whole decision.
- Best for
- Anyone who wants an MCP server attached to a scheduler they already know, at no extra cost
- Pricing (checked 3 October 2026)
- Free (3 channels, 10 queued posts per channel); Essentials $6/channel/mo billed monthly, $5 billed yearly; Team $12/channel/mo, $10 billed yearly
- Main strength
- The lowest-friction way to give an assistant publishing access to accounts you have already connected somewhere familiar.
- Watch out for
- Billing is per channel, so seven channels runs $42 a month on Essentials billed monthly ($35 billed yearly), and the price keeps climbing with each account. The MCP publishes what you wrote; it has no view on whether it will work.
- Verdict
- The right default if you are on Buffer already or want to try MCP without paying. Outgrown once you have many channels or want the assistant to do more than post.
2. post bridge
www.post-bridge.com
- What stands out
- A hosted MCP server with OAuth sign-in and no API key to paste, plus a REST API, a CLI on npm and an open-source agent plugin. The most complete agent stack in this list, built by a solo founder.
- Best for
- Content that already exists and needs distributing everywhere
- Pricing (checked 5 October 2026)
- Marketer $39/mo (15 accounts); Operator $99/mo (99 accounts, then $1 each). Unlimited posts on paid plans; free users get 5 a month
- Main strength
- Flat pricing with unlimited posts, and the cleanest developer surface here. If the job is purely "put this on ten platforms", it is hard to beat on simplicity.
- Watch out for
- It assumes the content exists. There is no drafting, no measurement of what worked, and no learning about your audience — every post is a fresh guess.
- Verdict
- The honest recommendation when distribution is the only problem. We would send you here for that case, and do on our own alternatives page.
4. Blotato
www.blotato.com
- What stands out
- Bundles AI image and video generation, DM and comment automation, and official n8n and Make nodes with the MCP server. Aimed at people running automation pipelines, not just scheduling.
- Best for
- Creators who want AI generation, DM automation and publishing in one place
- Pricing (checked 19 September 2026)
- Starter $29/mo (20 accounts, 1,250 AI credits); Creator $97/mo (40 accounts); Agency $499/mo. 7-day trial, API excluded from trial
- Main strength
- Twenty accounts for $29 with real AI credits included is strong value if you will use the generation features.
- Watch out for
- You cannot try the API during the trial, which is the thing an agent builder most needs to evaluate. The feature breadth is a cost as well as a benefit.
- Verdict
- Best for someone who wants generation and automation together and is comfortable with a bigger tool. Overkill for simple scheduling.
5. Metricool
metricool.com
- What stands out
- MCP access on the free plan, with a genuinely useful analytics layer behind it. An assistant can read performance data here, not only push posts out.
- Best for
- One brand that wants analytics and a free MCP
- Pricing (checked 19 September 2026)
- Free (1 brand, 20 posts/mo, MCP included); Starter from $20/mo (up to 10 brands); Advanced from $53/mo
- Main strength
- The best free option if you run a single brand and care about reporting. The competitor-analysis feature is unusual at this price.
- Watch out for
- The free tier excludes LinkedIn and X, which rules it out for a lot of B2B use. It is an analytics tool with scheduling attached, and the MCP reflects that.
- Verdict
- Right choice for a single-brand operator whose week ends with a report. Less so for high-volume posting across many accounts.
6. Postiz
postiz.com
- What stands out
- Open source with a hosted option. The widest platform list here, including places nothing else reaches, and an MCP plus API on every paid tier.
- Best for
- Developers who want to own the stack
- Pricing (checked 19 September 2026)
- Self-host free (open source); hosted Standard $29/mo (5 channels); Team $39/mo (10); Pro $49/mo (30); Ultimate $99/mo (100)
- Main strength
- Free if you can run it, modifiable if you need to, and no vendor to disappear on you. The strongest open-source answer.
- Watch out for
- Self-hosting is real work: platform API changes, token refreshes and failed publishes are yours. The hosted plans remove that at roughly post bridge prices with fewer channels per tier.
- Verdict
- Pick it if you want to own the infrastructure or need a platform nobody else supports. Otherwise a hosted competitor is less effort for similar money.
7. Ayrshare
www.ayrshare.com
- What stands out
- The established unified social API, with SDKs and the broadest network coverage among the hosted options. The MCP server is listed as a new addition on top of that.
- Best for
- Building a product that publishes on behalf of many users
- Pricing (checked 19 September 2026)
- Premium $149/mo (1 profile); Launch $299/mo (10 profiles, 28-day trial); Business $599/mo (30 profiles); Enterprise custom
- Main strength
- If you are building something that publishes for your own customers, this is the most mature foundation to build on.
- Watch out for
- The pricing makes no sense for an individual. $149 a month for one profile is a developer platform fee, not a creator subscription.
- Verdict
- The pick for developers embedding publishing into their own product. Not a creator tool and not trying to be.
8. Sociality
sociality.io
- What stands out
- A data-first MCP: the assistant reads your performance and your competitors’ public numbers in one connection. Available in the ChatGPT plugin directory with a one-click install.
- Best for
- Teams that want an assistant to read analytics and benchmark competitors
- Pricing (checked 19 September 2026)
- Credit-based. Free Starter tier with 1,000 one-time credits; paid Growth and Scale tiers above
- Main strength
- The best server here for "how are we doing and how does that compare", with security credentials (SSO, audit logs, pen tests) aimed at larger teams.
- Watch out for
- It is largely read-only. If you want the assistant to publish, this is the wrong server, or a second one alongside a posting server.
- Verdict
- The specialist for analytics and competitor intelligence. Pair it with a publishing server rather than expecting it to replace one.
9. KreatorMesh— this is ours; read the verdict with that in mind
kreatormesh.com
- What stands out
- Twelve tools behind an OAuth sign-in (Connect in Claude, no key to paste), and the centre of gravity is check_draft: it compares a caption against rules learned from hook tests run on your own audience and says which ones it breaks. list_hook_rules exposes the ruleset; create_hook_test starts a new one from the chat. Media is attached by URL, so Instagram and TikTok work from the conversation.
- Best for
- Deciding what to post and whether it worked, not only posting it
- Pricing (checked 19 September 2026)
- Starter $12/mo (3 accounts); Creator $29/mo (15 accounts, API and MCP); Pro $49/mo (unlimited). No free tier; 5-day trial needs a card
- Main strength
- The only server in this list that can tell an assistant whether a draft is likely to work on this specific account, based on measurement rather than generic advice. Publishing to all ten platforms is included but is not the point.
- Watch out for
- The ruleset is empty until a hook test has run to completion, and tests take weeks by design. The MCP server is a few weeks old. There is no free tier, and the trial needs a card — if free is the requirement, Buffer, SocialRobot or Metricool above are the honest answer.
- Verdict
- Ours, so weigh this accordingly. Choose it if the hard part is knowing what to write rather than getting it posted. Choose post bridge or Buffer if distribution is the only problem.
How this list was put together
- Every price was read from the vendor’s own pricing page on 19 September 2026, not from another listicle. The date is shown on each entry so you can judge staleness.
- Each tool is described on the same six points — what stands out, best for, pricing, main strength, watch-out, verdict — so the entries can be compared rather than only read.
- Where the honest answer is a competitor, it says so. post bridge is recommended for pure distribution and Buffer for a free start, in this article and on our own site.
- KreatorMesh is included and marked as ours. Its entry names its weaknesses — no free tier, an empty ruleset until a test concludes, a young MCP — with the same directness as the others.
- Servers that are single-platform, hobbyist, or read-only data feeds (Bright Data, Apify) are left out. This list is about publishing to social accounts you own.
How to choose
- You want to try MCP without paying anything
- Buffer if you use it already; SocialRobot if you do not need X; Metricool if you want analytics with it and can live without LinkedIn and X on free.
- The content already exists and needs distributing to many platforms cheaply
- post bridge. $39 for 15 accounts, unlimited posts, ten platforms, MCP and REST. Nothing else here is simpler for that job.
- You are building a product that publishes for your own users
- Ayrshare if you want a mature hosted API and can pay $149+; Postiz if you would rather self-host for free and own the stack.
- You want the assistant to read performance and compare competitors
- Sociality, alongside a publishing server. It is read-focused by design.
- The hard part is knowing what to write, and you want the assistant to check drafts against what has worked on your audience
- KreatorMesh. That is the specific thing it does that the others do not — and it is worth reading its watch-outs first.
Frequently asked questions
What is a social media MCP server?
MCP (Model Context Protocol) is an open standard that lets an AI assistant call an external service. A social media MCP server gives Claude, ChatGPT or Cursor tools it can invoke — publish this, schedule that, show me what performed — instead of only writing text you then move by hand.
Which social media MCP server is best?
It depends on the job. Buffer for a free start, post bridge for simple distribution to many platforms, Ayrshare or Postiz for building a product, Sociality for analytics, KreatorMesh for deciding what to post. There is no single best; there is a best for your bottleneck.
Can ChatGPT post to social media through MCP?
Yes, through a server that holds your account connections. ChatGPT has no access to your accounts on its own — the MCP server is what publishes, using accounts you connected to it. Several servers here are in the ChatGPT app directory for one-click setup; others are added as a custom connector with a URL.
Is there a free social media MCP server?
Buffer includes MCP on its free plan. SocialRobot has a free tier with MCP, without X. Metricool includes MCP on free, without LinkedIn and X. Postiz is free if you self-host it. KreatorMesh has no free tier.
Why do free plans exclude X?
Because X charges for API access, so every post to X costs the tool money. SocialRobot includes X only on its $29 plan and Metricool excludes it from free for the same reason. Any server offering unlimited free X posting is either subsidising it or will stop.
Do I need to write code to use an MCP server?
No. Most clients — Claude, ChatGPT, Cursor, Windsurf — take a URL and a key or an OAuth login in their settings. Code is only needed if you are building your own agent, in which case use the REST API the same vendors offer.
Can an MCP server post video to Instagram or TikTok?
The good ones can, by URL. The assistant passes a public link to the video and the platform fetches it at publish time. KreatorMesh, post bridge and Blotato work this way. Check before choosing, because some servers are text-only.
Is it safe to give an assistant access to my social accounts?
It is as safe as the server and the key. Prefer servers with revocable keys or OAuth, keep the key out of shared documents, and revoke it if it leaks. A server should also refuse to let a key manage other keys — KreatorMesh does, so a leaked key cannot mint more.
How is an MCP server different from Zapier or Make?
Zapier and Make run fixed automations you build in advance. An MCP server lets an assistant decide, in conversation, to call a tool — schedule this, check that — without a pre-built flow. Blotato ships both, which is a reasonable way to see the difference.
How much does a social media MCP server cost?
From free (Buffer, SocialRobot, Metricool, self-hosted Postiz) to $149+/month for a developer platform like Ayrshare. Most creator-priced options sit between $12 and $49 a month. Prices on this page were checked on 19 September 2026.
What does KreatorMesh’s MCP server do that the others do not?
It checks a draft against rules learned from hook tests on your own account — which openings held attention, measured — and reports what the draft breaks. The others publish what you wrote; this one has an opinion about whether it will work. The ruleset is empty until a test has concluded, which the entry above says plainly.
Try KreatorMesh
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3. SocialRobot
socialrobot.io