# Achriom Is the First Personal Library MCP, and Why That Matters **Published:** April 18, 2026 **Author:** Achriom **URL:** https://www.achriom.com/blog/achriom-first-personal-library-mcp > Claude, ChatGPT, and Cursor can now read your book, movie, music, and TV collection as context. Here's what that actually changes. **Tags:** guide, mcp --- **Achriom is the first personal media library exposed as a Model Context Protocol server.** That means any MCP-compatible AI client (Claude, ChatGPT, Cursor, Zed, Windsurf, or anything you build yourself) can search, read, and write your book, movie, album, TV, and anime collection with 29 purpose-built tools. It's free for all Achriom accounts, and your collection stays in one place regardless of which AI you want to use on it. No one else has shipped this. Apple's Books library, Goodreads, Letterboxd, Last.fm, and MyAnimeList are not MCP servers. If you want Claude to reason across your personal taste, Achriom is currently the only option. _Last reviewed: April 18, 2026._ ## What the Model Context Protocol actually is MCP is an open standard introduced by Anthropic in late 2024. It defines how AI clients talk to external data sources and tools: file systems, databases, APIs, internal company systems. It's the layer that makes it possible for Claude to "know about" something that wasn't in its training data. MCP has two sides: 1. **A server** that exposes tools (functions the AI can call) and resources (data the AI can read) 2. **A client** that connects to servers and routes the AI's tool calls to them Most MCP servers so far have been for developers: GitHub, Postgres, Linear. Consumer-facing MCP servers are rare. Achriom is one of the first to ship a polished, OAuth-authenticated, consumer MCP product for a personal-data use case. ## What it unlocks for Achriom users The short version: you don't have to pick an AI. Your library lives at Achriom, and you use whichever model you prefer for a given task. Practical examples from the current 29-tool surface: - **"Add these books I'm reading this week"** inside a Claude conversation, while also working on something else - **"What patterns do you see across my film and album ratings?"** in ChatGPT Developer Mode - **"Pick something from my watchlist that matches this mood"** from a custom Cursor agent - **"Generate a weekly email summarizing what I finished and started"** from an automation - **"Rate this book 4 stars and add a note"** without leaving your chat Changes sync across clients immediately. Add something in Claude, see it in the Achriom app. Update a rating from ChatGPT, and your history reflects it. ## Why this matters beyond Achriom Personal AI is moving toward a model where your data is more valuable than the model you happen to be talking to. Models get swapped out every six months; your taste and reading history compound over years. The pattern Achriom is demonstrating is worth naming: 1. **Data lives at a specialized, user-owned service** (your library) 2. **The AI client is fungible** (Claude today, something else tomorrow) 3. **MCP is the thin protocol** that keeps them loosely coupled This is the opposite of the "one chatbot knows everything" approach most consumer AI products ship with. It's closer to how the web works: data in one place, multiple readers and writers. ## What Achriom's MCP exposes The server is live at `mcp.achriom.com` and ships 29 tools. Grouped roughly: - **Read**: search the library, get item details, filter by rating or status, get stats, list recent additions - **Write**: add items, update ratings, update status (read/watched/listening), delete, bulk update - **Explore**: preview albums in Apple Music, fetch YouTube search results, read book content semantically - **Context**: get the user's profile, timeline, current research focus, signals, insights Most tools return both structured data (for the AI to reason over) and display instructions (so the AI can render things like album previews and video embeds properly in chat). ## How to try it If you have an Achriom account: 1. Go to [account settings](https://app.achriom.com/settings) and copy your MCP URL or API key 2. Add it to your AI client: - **Claude / Claude Desktop**: Settings → Connectors → Add custom connector - **ChatGPT** (Plus/Pro): enable Developer mode in Settings → Apps, then Settings → Connectors → Create - **Cursor / Windsurf / custom**: use `https://mcp.achriom.com/mcp?api_key=YOUR_KEY` Full setup walkthrough is on the [MCP page](/mcp/) and in the [help article](/help/mcp/). MCP is free on every Achriom plan, including the free tier. ## The bigger read For people who care about their personal taste (what they've read, watched, listened to), the interesting shift is that your library is now a _context source_, not just a list. Claude doesn't need you to retype what you like. ChatGPT doesn't need to guess your mood from scratch. Any agent you build can start from what you've actually loved. That's the point of exposing Achriom as an MCP server. Your collection becomes the ground truth. The AI you happen to be using reads from it. ## Common questions ### What is an MCP server? An MCP server is a program that exposes tools and data to AI clients using the Model Context Protocol standard. AI clients like Claude, ChatGPT, and Cursor connect to MCP servers to access external data and take actions on the user's behalf. ### Is Achriom the only personal library MCP? As of April 2026, Achriom is the only consumer media-library product with a polished, OAuth-authenticated MCP server. Other trackers (Goodreads, Letterboxd, MyAnimeList, Last.fm) do not expose MCP interfaces. ### Does using Achriom's MCP cost extra? No. MCP is free on every Achriom account, including the free tier. Generate an API key from account settings. ### Which AI clients can connect? Claude, Claude Desktop, ChatGPT Plus/Pro (Developer mode), Cursor, Windsurf, Zed, and any HTTP MCP client. The full URL pattern is `https://mcp.achriom.com/mcp?api_key=YOUR_KEY` for clients that don't do OAuth. ### Do changes made through MCP sync with the Achriom app? Yes. Your library is a single store. Adding an item from Claude makes it appear in the app. Updating a rating from ChatGPT is reflected in your history immediately. ### What happens to my library if I stop using a specific AI client? Nothing. Your library stays in Achriom. MCP is a connection, not a migration. You're never locking your data into a specific AI.