Preflight

Preflight is a social media scheduler that checks every post against each network's real publishing rules before it leaves, so a post never fails halfway through a list of networks. It publishes one post to 12 networks: YouTube, TikTok, Instagram, Facebook, Threads, LinkedIn, Pinterest, Bluesky, Mastodon, Telegram, Discord and Tumblr. Text length (counted the way each network counts it), hashtags, file size, video length, image ratios and per-account limits are checked in the composer, in the REST API and in the hosted MCP server. Clients approve posts from a link, without an account. Claude, ChatGPT and Cursor can draft, validate, schedule and publish through the MCP server (27 tools). Free plan with 3 channels and no card; paid plans from $13 a month. REST API, webhooks and MCP are on every plan.