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Openpost MCP Server

answering

Openpost is answering right now. Last checked 7 min ago. Last commit 17 Sep 2026.

Manage social publishing workflows through OpenPost

Uptime history 47 days of history · worst day 46%
47 days agonow
49.7%
Uptime 24h
91 of 183 checks
Tools
hidden behind auth
129 ms
Response time
average over 24h
564
Stars
last commit 17 Sep 2026

What the code does

We read the source, 21 h ago · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

func mcpMediaFromAttachment(media models.MediaAttachment, usageCount int, canDelete bool) mcpMedia {
    thumbnailURL := "/media/" + media.ID + "/thumb"
    if mcpHasSmallThumbnail(media.ThumbnailsJSON) {
    path := filepath.Join(baseDir, cleaned)
        'import.meta.env.VITE_APP_MODE': JSON.stringify(process.env.VITE_APP_MODE || 'web')
    "palette": "AgEDAQH+/wIDA/8CA//+/v8E/gP+BQJmCAKiCp8O/v/+BAIrBAFIBgSGCHsJBVYRCYwKBQLhBQPBlgL+k/4M/gMxEf9uc/8Ltf8NZwIIC/9OPQUFAv8t/Qa3JAEEKf8K/gGWDTr8fQEJDf6RC1LzBWgGUwQICEYLDv+3CTUE/mIJC8ERCyH+Tv8JT/7+/f6uCBgGCyuPpAENbQL+CHTKXP+MTTARdv5UDdr0xQMLPQS3/f95CSYLDERd/h8JC8X7/QVS/ARx…

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 7 min ago.

run in your terminal
claude mcp add openpost --transport http https://app.openpo.st/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "openpost": {
      "url": "https://app.openpo.st/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.openpost]
url = "https://app.openpo.st/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "openpost": {
      "url": "https://app.openpo.st/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "openpost": {
      "url": "https://app.openpo.st/mcp"
    }
  }
}

This endpoint answered with an authorization challenge. The server is running, and it signs you in through your browser: there is no API key to paste.

This server publishes 1 more address. The block above uses the one we reach during checks; the full list is under Endpoints below, and the author may intend a particular one for your client.

Endpoints

URLTransportStateLatencyChecked
https://app.openpost.social/mcp streamable-http answering 369 ms 7 min ago
https://app.openpo.st/mcp streamable-http sign-in 144 ms 7 min ago

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Openpost — questions

Answers built from our own checks of this server.

Why is there no tool list for Openpost?
The server answered our handshake with an authorization challenge, so it is running — but it will not describe its tools to an anonymous client. To see them you need to connect with your own credentials. We record it as alive, not as broken: 49.7% of checks in the last 24 hours got a reply.
Is Openpost working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 183 checks got a reply (49.7%), average response time 129 ms. The bar chart above shows every period we have measured.
How do I connect Openpost?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address. You sign in through your browser once and the client keeps the session: no key to copy, and it refuses anonymous clients.
How do you sign in to Openpost?
No API key is involved. Openpost answers our knock with an OAuth challenge, so you authorise it once in your browser and the client keeps the session. That is also why we see no tool list: it will not describe itself to an anonymous client, and that is the server working as intended, not a fault.
How fast is Openpost?
It answers our handshake in 129 ms on average, which is faster than 80% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Openpost open source?
Yes — it is published under the AGPL-3.0 licence, written in TypeScript and 564 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.