Keryx MCP server

Connect Keryx and your agent gets 2 tools, among them keryx_status, research. It answers at https://keryx.cc/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 24 October 2026, succeeded.

Autonomous research agent that pays every source it cites in USDC on Arc via x402 micropayments.

Description as the publisher wrote it.

The 2 tools Keryx offers

Add Keryx to your AI client

Every block below points at https://keryx.cc/mcp. Pick your client and copy.

claude mcp add --transport http keryx https://keryx.cc/mcp

{
  "mcpServers": {
    "keryx": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://keryx.cc/mcp"]
    }
  }
}

{
  "mcpServers": {
    "keryx": {
      "url": "https://keryx.cc/mcp"
    }
  }
}

{
  "servers": {
    "keryx": {
      "type": "http",
      "url": "https://keryx.cc/mcp"
    }
  }
}

{
  "context_servers": {
    "keryx": {
      "url": "https://keryx.cc/mcp"
    }
  }
}

{
  "mcpServers": {
    "keryx": {
      "serverUrl": "https://keryx.cc/mcp"
    }
  }
}

{
  "mcpServers": {
    "keryx": {
      "url": "https://keryx.cc/mcp"
    }
  }
}

name: Keryx
version: 0.0.1
schema: v1
mcpServers:
  - name: Keryx
    type: streamable-http
    url: https://keryx.cc/mcp

{
  "mcpServers": {
    "keryx": {
      "httpUrl": "https://keryx.cc/mcp"
    }
  }
}

{
  "mcpServers": {
    "keryx": {
      "type": "http",
      "url": "https://keryx.cc/mcp"
    }
  }
}

{
  "mcpServers": {
    "keryx": {
      "url": "https://keryx.cc/mcp"
    }
  }
}

goose://extension?url=https%3A%2F%2Fkeryx.cc%2Fmcp&type=streamable_http&id=keryx&name=Keryx

Is Keryx up right now?

It answered our last check on 24 October 2026 in 617 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 Keryx

Questions about Keryx

How many tools does Keryx have?

2, as returned by the server's own tools/list on 21 September 2026: keryx_status, research.

Is Keryx down?

It answered our last check on 24 October 2026 in 617 ms. Over 6 checks since 11 September 2026 it answered 6.

How do I add Keryx to Cursor?

Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://keryx.cc/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 Keryx need an API key?

It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.

Where this comes from

Publisher: io.github.tang-vu. Endpoint host: keryx.cc. ARD identifier: urn:air:io.github.tang-vu:mcp:keryx. 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.