Index One MCP server

Index One is the official remote MCP server from indexone.io. It answers at https://api.indexone.io/mcp over streamable HTTP and asks you to sign in with your indexone.io account before it lists its tools, so your client opens a login the first time it connects. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 24 October 2026, got the sign-in challenge, so it is up.

Query financial index data, run backtests, and deploy systematic investment strategies on Index One.

Description as the publisher wrote it.

What Index One 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 indexone.io account, and the tools appear once you have approved it.

Add Index One to your AI client

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

claude mcp add --transport http index-one https://api.indexone.io/mcp

{
  "mcpServers": {
    "index-one": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://api.indexone.io/mcp"]
    }
  }
}

{
  "mcpServers": {
    "index-one": {
      "url": "https://api.indexone.io/mcp"
    }
  }
}

{
  "servers": {
    "index-one": {
      "type": "http",
      "url": "https://api.indexone.io/mcp"
    }
  }
}

{
  "context_servers": {
    "index-one": {
      "url": "https://api.indexone.io/mcp"
    }
  }
}

{
  "mcpServers": {
    "index-one": {
      "serverUrl": "https://api.indexone.io/mcp"
    }
  }
}

{
  "mcpServers": {
    "index-one": {
      "url": "https://api.indexone.io/mcp"
    }
  }
}

name: Index One
version: 0.0.1
schema: v1
mcpServers:
  - name: Index One
    type: streamable-http
    url: https://api.indexone.io/mcp

{
  "mcpServers": {
    "index-one": {
      "httpUrl": "https://api.indexone.io/mcp"
    }
  }
}

{
  "mcpServers": {
    "index-one": {
      "type": "http",
      "url": "https://api.indexone.io/mcp"
    }
  }
}

{
  "mcpServers": {
    "index-one": {
      "url": "https://api.indexone.io/mcp"
    }
  }
}

goose://extension?url=https%3A%2F%2Fapi.indexone.io%2Fmcp&type=streamable_http&id=index-one&name=Index%20One

Is Index One up right now?

It answered our last check on 24 October 2026 in 121 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.

MCP servers similar to Index One

Questions about Index One

Is there an official Index One MCP server?

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

How do I sign in to Index One?

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

Is Index One down?

It answered our last check on 24 October 2026 in 121 ms. Over 6 checks since 11 September 2026 it answered 6.

How do I add Index One to Cursor?

Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://api.indexone.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 Index One 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.indexone. Endpoint host: api.indexone.io. ARD identifier: urn:air:io.indexone:mcp:mcp. First indexed 10 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.