Lingvestor for agents
Learn it with your agent.
Lingvestor already uses AI to build decks made for you. Your own agent — Codex, Claude, or another — knows you even better. Connect it, and it builds your decks straight from your real life.
Paid feature · works with Claude, Codex and other agents
Finanzamt: extend the deadline
14 words · from your letter
Two ways to fill your decks
A great deck on your own. An even better one with your agent.
On your own
Lingvestor AI
Tell Lingvestor a topic and our AI builds a solid deck made for you — the right words, real examples, cards ready to study. Good on its own, and always here.
Even better
Your own agent
Connect your Codex, your Claude, or another agent. It already knows your level, your topics, and the exact words you get stuck on — so the decks are truly yours. Our MCP connector lets it build the learning material and add it straight into Lingvestor.
How it works
Three steps. You stay in charge of every one.
01
You write, as usual.
An email to the tax office. A chat about your trip. Code review. You talk to your agent the way you already do — Lingvestor is not in the room.
02
Your agent picks the words.
It knows your level and the words you probably didn’t know — not just single words, but real phrases and set expressions. It shows you the list first. You cross out what you don’t want.
03
The deck appears in Lingvestor.
You approve, and a ready deck shows up in your app — named after the real moment, with cards built from your own sentences. You study it like any other.
Why it's different
The words you actually need — because your agent was there.
A normal app gives everyone the same list: “100 travel words”. But you don't need a textbook's idea of travel. You need the exact phrase you got stuck on this morning.
Your agent already knows that phrase. It knows your level, your topics, and the sentence where the word appeared. So the deck it builds is not generic — it is yours. And the examples on each card come from your real situation, which is exactly what makes a word stick.
Your agent knows what you learn. Lingvestor knows how to make it stick.
Your privacy
Your conversations stay with your agent.
Lingvestor cannot read your agent's memory — there is no tool for that. Your agent chooses what to share, and you see every word before it is saved.
One-way street
Your agent sends words to Lingvestor. Lingvestor cannot reach back into your agent’s memory — there is no tool for that.
You approve first
Nothing is saved until you see the list and say yes. Every word lands in your app in plain sight.
Revoke anytime
One key connects your agent. One click disconnects it. You are always in control.
Connect your agent
Two minutes. One key.
Get a key in your account, paste it into your agent, and you're done. Pick your agent for the exact step.
Get your key →- 1Run this once in your terminal — it wires up the connection.
Terminal
claude mcp add --transport http lingvestor https://lingvestor.ai/api/mcp/YOUR_KEYReplace YOUR_KEY with the key from Account → Connect your agent. Your key is shown once. You can revoke it there anytime.
Questions
The honest answers.
Which agents work?
Any agent that speaks MCP — Claude (Code, Desktop, web), Codex, Gemini CLI, Cursor, and others. One connection, one key.
Can Lingvestor read my chats?
No. Your agent calls our tools to send words in. We have no tool that reads your conversations or your agent’s memory — it is not possible by design. Your agent decides what to share, and you see it before it is saved.
Who writes the cards?
Your agent can — it knows you, so its examples come from your real life. If it only sends the word, Lingvestor writes the card for you. Cards your agent made are marked “by your agent”, and you can rebuild any of them with Lingvestor in one tap.
What about private details?
The example sentence can carry names or amounts, so your agent is told to generalize them — the meaning stays, the private bits don’t. And you always see the list first.
What happens if my plan ends?
Your key simply stops working, and starts again when you resume — no need to make a new one. Your words and decks stay yours the whole time.
Ready to let your agent do the work?
Join the beta →