MCP.Market

PostSyncer MCP server

online · 100% uptime
by PostSyncer·io.github.PostSyncer/postsyncer·v1.0.1·1 stars
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Schedule, publish, and analyze social media posts across 11 platforms from any MCP client.

A93/100grade A
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Safety scan
A93/100

full report

Adoption
New

1 stars

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PostSyncer tools

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Public scan report

scanner v0.1.10 · 2026-10-29 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 331ms (auth required)20/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityOAuth resource metadata advertised on 40115/15
  • Maintenancelast push 57 days ago12/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10
Overall 93/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How PostSyncer compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
93/100
higher than 95% of 48,243 servers
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
257 ms
faster than 57% of 30,027 servers
GitHub stars
1
more than 65% of 28,706 servers

Install PostSyncer in Claude Code, Cursor or VS Code

claude mcp add --transport http postsyncer https://postsyncer.com/mcp
Add to Cursor

What the publisher says

From the PostSyncer repository's README, as published. We do not edit it. Read it on GitHub

PostSyncer Plugin

Schedule, publish, and analyze social media posts from Claude Code, Claude Cowork, Cursor, and Grok Build — across 11 platforms: X (Twitter), Instagram, Facebook, LinkedIn, TikTok, YouTube, Threads, Bluesky, Mastodon, Pinterest, and Telegram.

The plugin bundles the official PostSyncer MCP server (https://postsyncer.com/mcp) plus a skill that teaches Claude the full PostSyncer workflow: workspaces, connected accounts, posts (publish now / schedule / draft / repeat), threads, first comments, media library, campaigns, labels, comment moderation, and performance analytics.

Install

From the Claude plugin directory:

claude plugin install postsyncer

Or directly from this repo:

claude plugin marketplace add PostSyncer/claude-plugin
claude plugin install postsyncer@postsyncer

Cursor

Install from the Cursor Marketplace, or clone this repo into ~/.cursor/plugins/local/postsyncer and run Developer: Reload Window. The manifest lives in .cursor-plugin/plugin.json.

Codex

codex plugin marketplace add PostSyncer/claude-plugin

The Codex manifest lives in .codex-plugin/plugin.json; the plugin is also listed in the ChatGPT/Codex plugin directory as PostSyncer.

Gemini CLI

gemini extensions install https://github.com/PostSyncer/claude-plugin

Any MCP client

Point your client at https://postsyncer.com/mcp (Streamable HTTP). The server is published in the official MCP Registry as io.github.PostSyncer/postsyncer.

Grok Build

Install from the xAI plugin marketplace (postsyncer). The Claude-format manifest in .claude-plugin/plugin.json is used as-is.

Authenticate

Two options:

  1. OAuth (recommended) — run /mcp inside Claude Code, select postsyncer, and click authenticate. You log in to PostSyncer once in the browser; no token to paste.
  2. API token — create a token in the PostSyncer app (Settings → API) with the abilities you need (workspaces, accounts, labels, campaigns, posts) and configure it as a Bearer token for the postsyncer MCP server.

Try it

  • "List my connected social accounts"
  • "Schedule a post to LinkedIn and X for tomorrow at 9am announcing our new feature"
  • "Upload these product shots and draft an Instagram carousel with the link in a first comment"
  • "How did last week's posts perform across all my workspaces?"
  • "Repeat this post every Monday for a month"

What's included

Network and permissions

This plugin ships no scripts, hooks, or local binaries. Its only component besides the skill file is a remote MCP server:

Credentials: either an OAuth grant issued during the login flow, or a PostSyncer API token you create yourself and configure as a Bearer token. The plugin never reads environment variables, files, or secrets from your machine, and the MCP server only accesses the PostSyncer workspaces the authenticated account can see.

Links

  • Website: https://postsyncer.com
  • Docs: https://docs.postsyncer.com
  • Support: support@postsyncer.com

License

MIT

Nothing above is checked by us. What we check is on the safety report.

PostSyncer: common questions

Is PostSyncer MCP server safe?
Yes, by our scan: it is graded A (93/100). Read the PostSyncer safety report
How do I install PostSyncer?
It runs remotely at postsyncer.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does PostSyncer need an API key?
No key to paste: it signs you in with OAuth when your client connects.
Is PostSyncer maintained?
The last commit was 65 days ago (2026-09-01). The latest release is v1.0.1.
Is PostSyncer up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does PostSyncer compare with other MCP servers?
safety score 93/100 (higher than 95% of 48,243 servers); uptime 100% (of our recent checks; the typical remote server answers 100%); response time 257 ms (faster than 57% of 30,027 servers). Full comparison.