Working with MCPs

Instantly connect to managed MCP servers — skip the setup and start using fully managed MCPs with built-in authentication, seamless scalability, and full tracing. This guide gives you a quick walkthrough of how to get started with MCPs.

Quick Example

In this example, we’ll create a Virtual MCP Server by combining Slack and Gmail MCPs — and then connect it to an MCP Client like Cursor for instant access inside your chats.

Steps:

1. Select Slack and Gmail from MCP Severs in the Virtual MCP Section.

2. Generate a Virtual MCP URL automatically.

3. Install the MCP into Cursor with a single command.

Example install command:

npx @langdb/mcp setup slack_gmail_virtual https://api.langdb.ai/mcp/xxxxx --client cursor

What Happens Under the Hood?

• Authentication is handled (via OAuth or API Key)

• Full tracing and observability are available (inputs, outputs, errors, latencies)

• MCP tools are treated just like normal function calls inside LangDB

Next Steps:

• MCP Servers listed on LangDB: https://app.langdb.ai/mcp-servers
• Explore MCP Usecases.