Onyx MCP Server

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

Packages and local setup

The published npm package is onyx-mcp, version 0.2.1. Its declared MCP transport is stdio.

The package declares ONYX_API_URL (required): Onyx API base URL, for example https://onyx.example.com/api; ONYX_API_TOKEN (required): 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.

Before connecting

Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.

Project and source

View the publisher’s registry entry · Project repository · Project website. This profile uses version 0.2.1 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.

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