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langweave

claude.ai and Claude Desktop

langweave is a remote MCP server. Claude connects to it over HTTPS and you sign in once; there is nothing to install and no key to paste. The URL is:

https://api.langweave.tech/mcp

Before you start, create an account and choose a language — the connector works without one, but every tool will only tell you to go and do that.

  1. Open Settings → Connectors and choose Add custom connector.
  2. Name it langweave and paste https://api.langweave.tech/mcp as the server URL. Leave the advanced OAuth fields empty — the server registers the client itself (dynamic client registration).
  3. Select Add, then Connect. A sign-in page opens at lexmem, which keeps your account for langweave (why): sign in with the account you created and allow access.
  4. In a new conversation, open the tools menu and check that langweave is enabled.

Check that it works

Section titled “Check that it works”

Ask for something ordinary in a new conversation. Claude should call get_language_profile before it answers, weave a word or two of your language into the reply, and call log_exposures after it. Claude asks your permission the first time it uses each tool; allowing log_exposures is what makes your vocabulary grow.

If a tool answers that you have not chosen a language, the connector signed in as a different account from the one you enrolled. Disconnect it in Settings → Connectors and connect again.

Sign-in, and what it allows

Section titled “Sign-in, and what it allows”

The connector signs in with OAuth: the client registers itself with lexmem, which issues langweave’s sign-ins; you approve it once on lexmem’s consent screen, which names the client, and from then on it holds a short-lived token it renews on its own. The token lets the five tools read your profile and record the words Claude used — nothing else. See what the tools can change, what is stored and your memory.