Schedule Social Posts from Claude Code

The quickest route needs no API key. Claude Code connects to PostFast's hosted MCP server, and you sign in with your PostFast account.

Already added PostFast in Claude?

If PostFast is added to your claude.ai account (from Claude’s connector directory) and Claude Code is signed in with the same Claude account, it is already in Claude Code. Nothing to install: run /mcp and PostFast is listed with your claude.ai connectors. If it shows as needing authentication, select it and sign in.

Don't add it by hand as well. Claude Code would then hide the claude.ai copy as a duplicate (“same URL as your server”) until you remove the one you added.

Otherwise, add it by hand

Run this once. It adds the server for every project:

claude mcp add --scope user --transport http postfast https://mcp.postfa.st/mcp

Then sign in:

1. In Claude Code, run /mcp, choose postfast, then Authenticate.
2. Log in to PostFast in the browser that opens, and approve the connection.
3. /mcp now shows postfast connected. First thing to try: “list my PostFast accounts”.

Use the open-source postfast-mcp package when you want a fixed workspace key, scripts or CI, a machine without a browser, or to upload local files by path. It runs locally, gives Claude Code 25 tools, and publishes posts as you ask, with no approval hold.

Ask Claude Code to do it for you

Already have Claude Code open? Paste this prompt. It will add the server with claude mcp add and remind you to set POSTFAST_API_KEY.

Add the PostFast MCP server to my Claude Code config. Use the instructions at https://postfa.st/api-integrations/claude-code. Run `claude mcp add --scope user postfast -- npx -y postfast-mcp` so the server loads in every project and reads POSTFAST_API_KEY from my environment. Then tell me how to get an API key from app.postfa.st and run "claude mcp list" to verify.

Prefer to do it by hand? Two paths. For every project, run:

claude mcp add --scope user postfast --env POSTFAST_API_KEY=your-api-key-here -- npx -y postfast-mcp

For one project, add this to .mcp.json in the project root:

{
  "mcpServers": {
    "postfast": {
      "type": "stdio",
      "command": "npx",
      "args": ["-y", "postfast-mcp"],
      "env": {
        "POSTFAST_API_KEY": "your-api-key-here"
      }
    }
  }
}

API key: Log in to your PostFast dashboard, open the API section in the sidebar, and generate a key.

To keep the key out of committed dotfiles, export it in your shell profile instead and drop the env block from the JSON:

export POSTFAST_API_KEY="your-api-key-here"

Restart Claude Code, then run claude mcp list to confirm. 25 tools become available.

Or install it as a Claude Code plugin

The postfast-mcp repository is also a plugin marketplace. Inside Claude Code, run:

/plugin marketplace add peturgeorgievv-factory/postfast-mcp
/plugin install postfast@postfast-mcp

It installs this same npm server, so it reads POSTFAST_API_KEY: export it in your shell profile or set it under env in ~/.claude/settings.json, then restart Claude Code. If you already added PostFast by hand, remove that entry first, or Claude Code shows two sets of PostFast tools. Details in the postfast-mcp README.