ContentIn

Overview

ContentIn is an AI ghostwriter purpose-built for LinkedIn. Unlike generic AI writing tools that start from a blank slate, ContentIn trains a personal model on your own LinkedIn posts — learning your hooks, sentence rhythm, vocabulary, and the topics you keep returning to. From the very first draft, outputs read like you rather than a generic AI, and the model becomes measurably sharper every week as you edit and publish.

The system is structured around a three-layer architecture. First, a voice-matching engine analyzes your public profile and at least 20 existing posts to construct a personal “Voice DNA” model. Second, a knowledge base is populated through a structured 10-minute interview that captures what you're building, who you're talking to, and the stories only you have — with support for docs, links, and voice notes. Third, a closed feedback loop ensures every edit you keep and every post you publish feeds back into the model, so the output compounds instead of resetting each session.

ContentIn covers the entire LinkedIn publishing workflow. The idea generator surfaces topics from your own sources, saved notes, or any pasted URL; 1,000+ post templates provide structures behind LinkedIn's best-performing posts; the content calendar schedules posts for your profile or company page through LinkedIn's official API; and post analytics reveal which angles perform best, with that performance data flowing back into the model. The platform also generates visual assets such as carousels, quote cards, and AI images, queues scheduled follow-up comments for links or lead magnets, and includes an AI comments engine for audience engagement.

Designed for founders, solopreneurs, coaches, and consultants who know LinkedIn matters for their pipeline but lack the time or rhythm to post consistently, ContentIn replaces a human ghostwriter at a fraction of the cost. Plans start at $19/month for analytics and scheduling, with the full AI Ghostwriter available from $39/month. Every plan includes a 7-day free trial, and a no-login free generator lets you test the voice-matching before committing.

Core capabilities

AI Ghostwriter trained on Voice DNA

Learns your sentence length, vocabulary, and post openings from your existing LinkedIn posts so drafts read like you wrote them.

Personal Knowledge Base

A 10-minute structured interview fills a persistent knowledge base with your offers, stories, docs, and audience — so the AI never needs re-briefing.

1,000+ Post Templates

Templates based on LinkedIn's best-performing posts, filterable by goal, format, and industry.

Endless Idea Generator

Produces content ideas from your own topics, saved notes, or any pasted URL, and stores them in a dedicated idea manager.

Content Calendar & Scheduler

Queues unlimited posts on every paid plan and publishes automatically to your profile or company page through LinkedIn's official API.

Post Analytics

Reports audience engagement and identifies which angles and themes perform, feeding that performance data back into the AI model.

AI Visual Content Creation

Generates carousels, quote cards, and unique images directly within the drafting workflow.

Scheduled Follow-up Comments

Queues a first comment with a link or lead magnet that drops right after the post goes live.

AI Comments Engine

Drafts meaningful replies based on your ideal customer profile and content pillars.

Telegram Bot & MCP Server

Write and schedule posts on the go from Telegram, or connect Claude, Cursor, or any MCP client via the LinkedIn MCP server (Pro plan).

Use cases

Generating a full week of LinkedIn posts in a single 20-minute session

Turning raw thoughts, wins, and client stories into structured, engaging posts

Maintaining consistent posting rhythm without hiring a $2,000/month human ghostwriter

Finding fresh content angles from a blog post or article by pasting its URL

Creating carousels, quote cards, and AI images to increase post engagement

Scheduling and managing LinkedIn company pages alongside personal profiles (Pro plan)

Drafting and scheduling posts on the go via Telegram or from any MCP-compatible client