postfast-mcp — Claude Code MCP server: features and setup
Connect an AI assistant to PostFast to schedule social posts and handle comments. Use it when PostFast is part of your publishing workflow.
claude mcp add postfast-mcp -e POSTFAST_API_KEY=<POSTFAST_API_KEY> -- npx -y postfast-mcpWhat postfast-mcp does
The server gives an assistant access to PostFast tools for listing connected accounts, creating scheduled posts, and uploading media. It can also retrieve analytics for published posts and follower history. Comment tools cover inbox conversations, replies, and conversation status changes.
For a local setup, you need npx and a POSTFAST_API_KEY value in the MCP configuration. Claude Code supports adding the server with claude mcp add or installing the plugin. Remove any hand-written PostFast entry before adding the plugin; otherwise Claude Code displays duplicate sets of PostFast tools.
The comments inbox covers TikTok, Instagram, Facebook Pages, and Threads, but it handles comments rather than direct messages. It does not backfill comments from before the account was connected. Deleting a comment through the server cannot be undone, while deleting a published post from PostFast does not remove it from the social platform.
What it helps with
- schedule a post for a connected social account
- upload an image and attach it to a post
- find posts scheduled within a date range
- review comment threads and reply to a comment
- retrieve metrics for published posts
Example prompts for the agent
- List the social accounts connected to PostFast.
- Schedule an Instagram post for tomorrow at 9am.
- Show comments that need a reply and draft a public response.
How to install postfast-mcp
Platform CLI
claude mcp add postfast-mcp -e POSTFAST_API_KEY=<POSTFAST_API_KEY> -- npx -y postfast-mcpReplace <…> with your own values
Platform CLI
codex mcp add postfast-mcp --env POSTFAST_API_KEY=<POSTFAST_API_KEY> -- npx -y postfast-mcpReplace <…> with your own values
Config file
{
"mcpServers": {
"postfast-mcp": {
"command": "npx",
"args": [
"-y",
"postfast-mcp"
],
"env": {
"POSTFAST_API_KEY": "<POSTFAST_API_KEY>"
}
}
}
}Replace <…> with your own values
Config file
{
"servers": {
"postfast-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"postfast-mcp"
],
"env": {
"POSTFAST_API_KEY": "<POSTFAST_API_KEY>"
}
}
}
}Replace <…> with your own values
Platform CLI
gemini mcp add -e POSTFAST_API_KEY=<POSTFAST_API_KEY> postfast-mcp npx -y postfast-mcpReplace <…> with your own values
Step by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about postfast-mcp
How do I install postfast-mcp in Claude Code?
Run claude mcp add postfast-mcp -e POSTFAST_API_KEY=<POSTFAST_API_KEY> -- npx -y postfast-mcp. Restart Claude Code afterward.
What does postfast-mcp do?
It connects an AI assistant to PostFast tools for scheduling posts, uploading media, checking analytics, and handling comments.
Does postfast-mcp need an API key?
A local server setup uses POSTFAST_API_KEY and starts the server through npx.
