Lexu MCP server

Lexu is the official remote MCP server from lexu.io. It answers at https://www.lexu.io/mcp over streamable HTTP and asks you to sign in with your lexu.io account before it lists its tools, so your client opens a login the first time it connects. Our probes reached it 4 of 4 times since 23 September 2026; the last check, on 6 November 2026, got the sign-in challenge, so it is up.

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Description as the publisher wrote it.

What Lexu needs before it works

A sign-in. The server refused to list its tools to an anonymous client and answered with an authentication challenge, which is how an MCP server protected by OAuth behaves. Add it with one of the setups below; the first connection opens a login for your lexu.io account, and the tools appear once you have approved it.

Add Lexu to your AI client

Every block below points at https://www.lexu.io/mcp. Pick your client and copy.

claude mcp add --transport http lexu https://www.lexu.io/mcp

{
  "mcpServers": {
    "lexu": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://www.lexu.io/mcp"]
    }
  }
}

{
  "mcpServers": {
    "lexu": {
      "url": "https://www.lexu.io/mcp"
    }
  }
}

{
  "servers": {
    "lexu": {
      "type": "http",
      "url": "https://www.lexu.io/mcp"
    }
  }
}

{
  "context_servers": {
    "lexu": {
      "url": "https://www.lexu.io/mcp"
    }
  }
}

{
  "mcpServers": {
    "lexu": {
      "serverUrl": "https://www.lexu.io/mcp"
    }
  }
}

{
  "mcpServers": {
    "lexu": {
      "url": "https://www.lexu.io/mcp"
    }
  }
}

name: Lexu
version: 0.0.1
schema: v1
mcpServers:
  - name: Lexu
    type: streamable-http
    url: https://www.lexu.io/mcp

{
  "mcpServers": {
    "lexu": {
      "httpUrl": "https://www.lexu.io/mcp"
    }
  }
}

{
  "mcpServers": {
    "lexu": {
      "type": "http",
      "url": "https://www.lexu.io/mcp"
    }
  }
}

{
  "mcpServers": {
    "lexu": {
      "url": "https://www.lexu.io/mcp"
    }
  }
}

goose://extension?url=https%3A%2F%2Fwww.lexu.io%2Fmcp&type=streamable_http&id=lexu&name=Lexu

Is Lexu up right now?

It answered our last check on 6 November 2026 in 642 ms. Over 4 checks since 23 September 2026 it answered 4. Status here comes from Neuronto's own probes, not from the publisher.

MCP servers similar to Lexu

Questions about Lexu

Is there an official Lexu MCP server?

Yes. It is published by lexu.io and served from www.lexu.io, the vendor's own domain: https://www.lexu.io/mcp.

How do I sign in to Lexu?

Add the server with a setup above. The first time your client connects it opens the sign-in page for lexu.io; approve it and the tools load.

Is Lexu down?

It answered our last check on 6 November 2026 in 642 ms. Over 4 checks since 23 September 2026 it answered 4.

How do I add Lexu to Cursor?

Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://www.lexu.io/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.

Does Lexu need an API key?

It needs a sign-in rather than a key you paste: the server answered with an authentication challenge, so your client runs the login when it first connects.

Where this comes from

Publisher: io.lexu. Endpoint host: www.lexu.io. ARD identifier: urn:air:io.lexu:mcp:mcp. First indexed 19 September 2026. The tools are exactly what the server returned; nothing on this page is inferred from its name. Ranking in Neuronto search is never for sale.