How to Connect MCP Servers to Neovim

Why connect MCP servers to Neovim?

Neovim's AI plugin ecosystem is growing fast. Plugins like avante.nvim and codecompanion.nvim support MCP, letting your AI assistant call external tools during coding sessions. Connect a DataFaucet MCP server and your Neovim AI can query your CRM, check deployment status, or pull analytics data without leaving the editor.

Prerequisites

• Neovim 0.10+ with an AI plugin that supports MCP (avante.nvim or codecompanion.nvim)
• A DataFaucet MCP server endpoint (deploy one at datafaucet.dev)
• Plugin manager (lazy.nvim recommended)

Option 1: avante.nvim

avante.nvim supports MCP servers via its configuration. Add your server in your plugin config:

require("avante").setup({
  mcp = {
    servers = {
      ["my-crm"] = {
        url = "https://your-server.datafaucet.dev/sse",
        headers = {
          Authorization = "Bearer your-api-key",
        },
      },
    },
  },
})

After restarting Neovim, avante will discover the tools from your MCP server and make them available in chat.

Option 2: codecompanion.nvim

codecompanion.nvim also supports MCP tool connections:

require("codecompanion").setup({
  adapters = {
    mcp_servers = {
      {
        name = "my-crm",
        url = "https://your-server.datafaucet.dev/sse",
        headers = {
          ["Authorization"] = "Bearer your-api-key",
        },
      },
    },
  },
})

Option 3: Generic MCP client (mcphub.nvim)

For a plugin-agnostic approach, mcphub.nvim provides a standalone MCP client for Neovim:

require("mcphub").setup({
  servers = {
    {
      name = "my-crm",
      transport = "sse",
      url = "https://your-server.datafaucet.dev/sse",
      headers = { Authorization = "Bearer your-api-key" },
    },
  },
})

Using your tools

Once connected, ask your AI assistant to use the tools:

> "Use my-crm to show deals closing this quarter"

The assistant calls your MCP server, gets structured data back, and presents it inline in the chat buffer.

Multiple servers

Add as many servers as you need:

servers = {
  ["crm"] = {
    url = "https://crm.datafaucet.dev/sse",
    headers = { Authorization = "Bearer key-1" },
  },
  ["monitoring"] = {
    url = "https://monitoring.datafaucet.dev/sse",
    headers = { Authorization = "Bearer key-2" },
  },
  ["tickets"] = {
    url = "https://tickets.datafaucet.dev/sse",
    headers = { Authorization = "Bearer key-3" },
  },
}

Troubleshooting

• Tools not showing up: Restart Neovim after config changes. Check :messages for connection errors.
• Auth failures: Verify your API key is correct. Test the server URL in a browser or with curl.
• Plugin not connecting: Ensure your plugin version supports MCP. Update to latest with your package manager.
• SSE timeout: Some firewalls block SSE connections. Try adding the DataFaucet domain to your allowlist.

What to connect first

Popular choices for developers using Neovim with MCP:

• GitHub/GitLab — pull PR reviews, issue context, CI status
• Jira/Linear — check ticket details without context switching
• Datadog/Sentry — query error logs during debugging
• Internal tools — any web app your team uses daily