PluginBench
MCP Server
Active
MIT

Onyx MCP MCP Server

io.github.ByWaleed/onyx-mcp

What is the Onyx MCP MCP server?

Secure MCP access to Onyx search, chat, projects, and administration.

How to install Onyx MCP

Copy-paste configuration for popular MCP clients.

transport: stdio
Config generated by PluginBench — verify against the source before use.
Environment / auth
  • ONYX_API_URL
    required

    Onyx API base URL, for example https://onyx.example.com/api

  • ONYX_API_TOKEN
    required
    secret

    Onyx Personal Access Token or API key

  • ONYX_DEFAULT_PERSONA_ID

    Default Onyx agent ID for new chats

  • ONYX_MCP_ENABLE_WEB_FETCH

    Enable web search and allowlisted URL fetching

  • ONYX_MCP_WEB_FETCH_ALLOWLIST

    Comma-separated hostnames permitted for HTTPS URL fetching

~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "onyx-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "onyx-mcp"
      ],
      "env": {
        "ONYX_API_URL": "<YOUR_ONYX_API_URL>",
        "ONYX_API_TOKEN": "<YOUR_ONYX_API_TOKEN>",
        "ONYX_DEFAULT_PERSONA_ID": "<YOUR_ONYX_DEFAULT_PERSONA_ID>",
        "ONYX_MCP_ENABLE_WEB_FETCH": "<YOUR_ONYX_MCP_ENABLE_WEB_FETCH>",
        "ONYX_MCP_WEB_FETCH_ALLOWLIST": "<YOUR_ONYX_MCP_WEB_FETCH_ALLOWLIST>"
      }
    }
  }
}

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