Postfast MCP vs PostSider — MCP Server Comparison | AllMCPs
Side-by-Side Model Context Protocol Comparison
Postfast MCP vs PostSider
In-depth architectural comparison of the Postfast MCP and PostSider MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Postfast MCP
Social Media · Local stdio
Quality: 64/100 (Good) | Auth: other
PostSider
Social Media · Remote HTTP/SSE
Quality: 43/100 (Fair) | Auth: No auth required
Verdict Summary: Choose Postfast MCP if you need specialized Social Media tools running via a local process. Choose PostSider if your workspace requires Social Media integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Postfast MCP when:
You need dedicated capabilities in the Social Media domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: other (BYOK (Pay Provider Direct)).
You have access to required keys: POSTFAST_API_KEY, POSTFAST_API_URL.
Schedule and manage social media posts across 10 platforms (Instagram, Facebook, TikTok, X, LinkedIn, YouTube, Threads, Pinterest, Bluesky, Telegram) from any MCP-compatible AI assistant.
Social media calendar for AI agents: read channels, create drafts, request approval.
List connected social media accounts (each with `connectionStatus` — `CONNECTED`/`DISABLED` — `disabledReason`, `followerCount`/`followerCountUpdatedAt`, and `inboxCapable`)
list_posts
List posts with filters (specific IDs, accounts, platform, status, date range); each post carries its key settings in `controls` (Threads topic, Instagram/Facebook format, TikTok draft flag, YouTube privacy)
create_posts
Create and schedule posts (batch, up to 15)
delete_post
Delete a post from PostFast by ID (does not remove an already-published post from the platform)
delete_posts
Delete up to 100 posts from PostFast in one call; returns `deletedIds` and `notFoundIds` (does not remove already-published posts from the platform)
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Postfast MCP is categorized under Social Media and uses a local stdio subprocess. In contrast, PostSider belongs to Social Media using remote streaming HTTP/SSE transport. Select Postfast MCP when you need capabilities focused on social media and PostSider when you require tools for social media.
Upload a local file and get a media key (handles the full flow)
get_upload_urls
Get signed URLs to upload media files
list_pinterest_boards
Get Pinterest boards for an account
list_youtube_playlists
Get YouTube playlists for an account
list_gbp_locations
Get Google Business Profile locations for an account
search_places
Find a place to tag posts (the `id` works for both `facebookPlaceId` and `instagramLocationId`)
generate_connect_link
Generate a link for clients to connect accounts — optionally scoped to specific platforms, with a `redirectUrl` the user returns to (carrying `status`, `platform`, `accountId` and your own `externalId`, plus `accountIds` after a Facebook or LinkedIn page step)