Haycion MCP server

Haycion is the official remote MCP server from haycion.com. It answers at https://mcp.haycion.com/api/mcp over streamable HTTP and asks you to sign in with your haycion.com 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 16 September 2026; the last check, on 24 October 2026, got the sign-in challenge, so it is up.

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Description as the publisher wrote it.

What Haycion 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 haycion.com account, and the tools appear once you have approved it.

Add Haycion to your AI client

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

claude mcp add --transport http haycion https://mcp.haycion.com/api/mcp

{
  "mcpServers": {
    "haycion": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://mcp.haycion.com/api/mcp"]
    }
  }
}

{
  "mcpServers": {
    "haycion": {
      "url": "https://mcp.haycion.com/api/mcp"
    }
  }
}

{
  "servers": {
    "haycion": {
      "type": "http",
      "url": "https://mcp.haycion.com/api/mcp"
    }
  }
}

{
  "context_servers": {
    "haycion": {
      "url": "https://mcp.haycion.com/api/mcp"
    }
  }
}

{
  "mcpServers": {
    "haycion": {
      "serverUrl": "https://mcp.haycion.com/api/mcp"
    }
  }
}

{
  "mcpServers": {
    "haycion": {
      "url": "https://mcp.haycion.com/api/mcp"
    }
  }
}

name: Haycion
version: 0.0.1
schema: v1
mcpServers:
  - name: Haycion
    type: streamable-http
    url: https://mcp.haycion.com/api/mcp

{
  "mcpServers": {
    "haycion": {
      "httpUrl": "https://mcp.haycion.com/api/mcp"
    }
  }
}

{
  "mcpServers": {
    "haycion": {
      "type": "http",
      "url": "https://mcp.haycion.com/api/mcp"
    }
  }
}

{
  "mcpServers": {
    "haycion": {
      "url": "https://mcp.haycion.com/api/mcp"
    }
  }
}

goose://extension?url=https%3A%2F%2Fmcp.haycion.com%2Fapi%2Fmcp&type=streamable_http&id=haycion&name=Haycion

Is Haycion up right now?

It answered our last check on 24 October 2026 in 470 ms. Over 4 checks since 16 September 2026 it answered 4. Status here comes from Neuronto's own probes, not from the publisher.

MCP servers similar to Haycion

Questions about Haycion

Is there an official Haycion MCP server?

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

How do I sign in to Haycion?

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

Is Haycion down?

It answered our last check on 24 October 2026 in 470 ms. Over 4 checks since 16 September 2026 it answered 4.

How do I add Haycion to Cursor?

Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.haycion.com/api/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 Haycion 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: com.haycion. Endpoint host: mcp.haycion.com. ARD identifier: urn:air:com.haycion:mcp:haycion. First indexed 16 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.