{"slug": "kalen", "title": "Kalen", "summary": "TypeSafe launched Kalen, an X assistant that connects to Claude, ChatGPT and Cursor through MCP and lets those AIs research, draft, score and schedule posts on X. Kalen runs no writing model of its own; it supplies daily top posts for a user's keywords and X trends plus weekly top posts from reference accounts, and scores each draft 0 to 100 with TypeSafe's judgment model Jev, sending weak drafts back for up to 3 rewrites. By default Kalen suggests about 40 posts a week, publishes only after approval in the chat via the official X API, and charges 1 credit per post (2 with a first reply or link), with every plan starting at 14 days free and 50 credits.", "body_md": "### The blind draft\n\nYour AI writes from what it learned months ago, not from this week on X. The posts read fine and land flat, because nothing tells it what your niche is engaging with now.\n\nKalen · your X assistant inside Claude, ChatGPT and Cursor\n\nKalen is an X assistant you connect to your AI. Every day he studies what is working in your niche on X. When you ask for posts, your AI writes them from his briefing, he scores every draft against what works, and once you approve, he schedules and publishes them on X.\n\n01The problem\n\nClaude writes a decent post in seconds. It doesn't know what your niche is reacting to today, which of your own posts worked, or when your next slot is. So the posting still happens by hand, by feel, one tab at a time.\n\nFinding what is working means searching your keywords, checking trends and rereading the accounts you follow, every day, before you write a word.\n\nThe draft is in the chat, the scheduler in another tab. Every post is a copy, a paste, a time picked by feel, and a first reply with the link you forget to add.\n\n02How it works\n\nKalen connects through MCP, the standard Claude, ChatGPT and Cursor already support. He runs no writing model: your AI writes the posts, he brings the research, the scoring and the scheduling.\n\nThe day's top posts for your keywords and X trends. Once a week, the most popular posts of your reference accounts and of your own account.\n\n\"Plan my X posts for next week with Kalen.\" Your AI gets the briefing and your open time slots, and writes the drafts in the chat.\n\nKalen scores each draft 0 to 100 with Jev, TypeSafe's judgment model, against what works in your niche and your own best posts. Weak drafts go back for up to 3 rewrites.\n\nNothing is scheduled until you say yes in the chat. Then Kalen publishes on X through the official X API, with an optional first reply for your link.\n\nBy default he suggests about 40 posts a week: around 30 evergreen posts, plus a daily moment complement that reacts to the day's trends. The aim is a pass mark and a mix of formats, not a perfect score on every post. A weak post is shown to you as weak, never hidden.\n\n03Works with\n\nNo new editor and no second subscription for the writing. Your AI, on your plan, writes the posts. Kalen brings the research, the scores and the posting.\n\nClaude.ai, the desktop app, the mobile app and Claude Code. Add a custom connector and sign in.\n\nA custom connector in ChatGPT's settings. Sign in with your Kalen account.\n\nOne block in your MCP settings file, with a key from your account.\n\nOther AIs that support remote MCP servers connect the same way.\n\n04Pricing\n\nA post costs 1 credit, 2 with a first reply or a link. Unused credits last 3 months. There is no free plan that posts: X charges for every post published through its API, and Kalen pays that on each one. Every plan starts with 14 days free and 50 credits, and you can connect X and set your profile before you pick one.\n\nA few posts a week, researched and scored. Yearly saves $18.\n\nAbout 20 posts a day, every day. Yearly saves $58.\n\nUp to 50 posts a day for accounts that post all day. Yearly saves $98.\n\n05FAQ\n\nMCP (Model Context Protocol) is how AI assistants use outside tools. Once Kalen is connected, your assistant calls him by itself when you ask for X posts, the same way it searches the web or reads a file. You never leave the chat.\n\nAny AI that supports MCP connectors: Claude (web, desktop, mobile and Claude Code), ChatGPT, Cursor, VS Code and more. Your account has setup steps for each one.\n\nYour AI does, from your prompt and Kalen's briefing. Kalen runs no writing model. He researches your niche, hands your AI the briefing and your open time slots, scores the drafts and publishes the ones you approve.\n\nEvery day: the top posts for your niche's keywords and the trends on X. Every week: the most popular posts of your reference accounts and of your own account. That is what your AI gets in the briefing, and what the drafts are scored against.\n\nKalen scores each draft from 0 to 100 with Jev, TypeSafe's judgment model, against what works in your niche and your own best posts. A draft below the pass mark goes back to your AI for a rewrite, up to 3 rounds. The aim is a week that passes with a mix of formats, not a perfect score on every post. A weak post is shown to you as weak.\n\nNo. Your AI shows you the posts and their times, and Kalen schedules them only after you approve in the chat. You can change or cancel any scheduled post until it goes out. He publishes through the official X API, with an optional first reply, for example with your link.\n\nBy default Kalen suggests about 40 a week: around 30 evergreen posts plus a daily moment complement that reacts to the day's trends. As many as your credits cover: a post costs 1 credit, 2 with a first reply or a link. Plans give credits every month (Starter 100, Pro 700, and Ultra 1,500), and unused credits last 3 months.\n\nIn the first reply, right under the post, on its own or after the reply's text. The post itself can't hold a link.\n\nYes. Every plan starts with 14 days free and 50 credits on your first subscription. Cancel any time before the trial ends and nothing is charged; after that the plan renews at its price.\n\nX charges for every post published through its API, and Kalen pays that on each post. The 14-day free trial is the way to try it, and you can create an account, connect X and set up your profile before you start it.\n\nPosts that @mention other accounts (X blocks them through the API), more than one cashtag in a post, posts more than 3 weeks ahead, and moment posts more than 48 hours out. Media: JPG, PNG or WebP up to 5 MB, GIF up to 15 MB, MP4 up to 50 MB.\n\nCancel during the 14-day free trial and nothing is charged. After that, cancel any time from your account: the plan stays active until the end of the period you paid for, and nothing is charged after that.", "url": "https://wpnews.pro/news/kalen", "canonical_source": "https://kalen.si/", "published_at": "2026-10-21 09:23:06+00:00", "updated_at": "2026-10-21 09:41:56.271467+00:00", "lang": "en", "topics": ["ai-agents", "agent-protocols", "ai-tools", "ai-products"], "entities": ["Kalen", "TypeSafe", "Jev", "Claude", "ChatGPT", "Cursor", "X", "Model Context Protocol"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/kalen", "markdown": "https://wpnews.pro/news/kalen.md", "text": "https://wpnews.pro/news/kalen.txt", "jsonld": "https://wpnews.pro/news/kalen.jsonld"}}