Semantic Search MCP Server

@mhart

About Semantic Search MCP Server

An MCP Server to search a Vectorize DB

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "cloudflare-docs": {
      "command": "npx",
      "args": [
        "mcp-remote@latest",
        "https://mcp.developers.cloudflare.com/mcp"
      ]
    }
  }
}

Tools

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Overview

What is Semantic Search MCP Server?

An MCP (Model Context Protocol) server that provides semantic search over documentation stored in a Cloudflare Vectorize database. It is built using the Agents SDK and powers Cloudflare’s own documentation MCP endpoint.

How to use Semantic Search MCP Server?

The server can be accessed remotely via mcp-remote (e.g., npx mcp-remote@latest https://mcp.developers.cloudflare.com/mcp) in Claude Desktop, or directly in Cloudflare’s AI Playground or VSCode via SSE. For local development, run npm run dev after populating a Vectorize database.

Key features of Semantic Search MCP Server

Searches documentation stored in a Cloudflare Vectorize database.
Built with Cloudflare’s Agents SDK.
Deployable to Cloudflare Workers with one click.
Supports remote SSE and stateless MCP connections.
Works with Claude Desktop, AI Playground, and VSCode.

Use cases of Semantic Search MCP Server

Querying Cloudflare documentation via an MCP-enabled AI assistant.
Integrating semantic search into MCP‑compatible chat clients.
Running a local development server for testing searches against a custom Vectorize database.

FAQ from Semantic Search MCP Server

What does the server search?

It searches documentation stored in a Cloudflare Vectorize database.

How do I use it in Claude Desktop?

Add a mcpServers entry with command npx, args ["mcp-remote@latest", "https://mcp.developers.cloudflare.com/mcp"].

Can I test it in Cloudflare’s AI Playground?

Yes. Enter https://mcp.developers.cloudflare.com/mcp as the MCP Server URL in the Playground.

How do I run it locally?

Run npm run dev (requires a populated Vectorize database). Then use http://localhost:8787/mcp as the server URL.

What transport does it use?

It uses Server‑Sent Events (SSE) for remote access and supports a stateless MCP endpoint at https://mcp.developers.cloudflare.com/mcp.

Frequently asked questions

What does the server search?

It searches documentation stored in a Cloudflare Vectorize database.

How do I use it in Claude Desktop?

Add a `mcpServers` entry with command `npx`, args `["mcp-remote@latest", "https://mcp.developers.cloudflare.com/mcp"]`.

Can I test it in Cloudflare’s AI Playground?

Yes. Enter `https://mcp.developers.cloudflare.com/mcp` as the MCP Server URL in the Playground.

How do I run it locally?

Run `npm run dev` (requires a populated Vectorize database). Then use `http://localhost:8787/mcp` as the server URL.

What transport does it use?

It uses Server‑Sent Events (SSE) for remote access and supports a stateless MCP endpoint at `https://mcp.developers.cloudflare.com/mcp`.

Comments

Basic information

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