add MCP doc (#2206)

Co-authored-by: Pablo Estrada <pablo@semgrep.com>

Author: khorne3

docs/mcp.md

@@ -0,0 +1,24 @@
+---
+slug: mcp
+append_help_link: false
+title: MCP Server
+hide_title: true
+description: Learn about the MCP server for using Semgrep to scan code for security vulnerabilities.
+tags:
+ - MCP
+ - Semgrep Code
+---
+
+# Semgrep MCP Server
+
+Semgrep's open source Model Context Protocol (MCP) server enables you to scan for security vulnerabilities.
+
+Semgrep is a fast, deterministic static analysis tool that semantically understands many [languages](https://semgrep.dev/docs/supported-languages) and comes with over [5,000 rules](https://semgrep.dev/registry). [Model Context Protocol (MCP)](https://modelcontextprotocol.io/) is a standardized API for LLMs, Agents, and IDEs like Cursor, VS Code, Windsurf, or any tool that supports MCP to receive specialized help, gain context, and harness the power of tools.
+
+Semgrep's open source MCP works with any IDE-based MCP client, enabling LLMs to use Semgrep to find and fix security issues in the code they generate.
+
+:::note Beta project
+Semgrep MCP Server is a beta project in active development. Join the `#mcp` [Slack community](https://go.semgrep.dev/slack) channel to provide your feedback, bug reports, feature requests, and code contributions.
+:::
+
+To learn more and get started, see the [Semgrep MCP server repo on GitHub](https://github.com/semgrep/mcp).

sidebars.js

@@ -249,6 +249,7 @@ module.exports = {
           label: 'Integrations',
           collapsible: true,
           items: [
+            'mcp',
             'semgrep-appsec-platform/jira',
             'semgrep-appsec-platform/wiz'
           ]