How to Use the R2R MCP in Windsurf

Q: Can Windsurf use R2R to answer questions about my docs?

Yes. Ask a question and Cascade uses ragquery to retrieve context from your R2R engine. It then synthesizes the answer directly in your chat.

Q: What if I get a connection error in Windsurf?

Run gethealth through the Cascade interface to check if your R2R server is reachable. If it returns an error, verify your endpoint URL in the config file.

Connect R2R to Windsurf and let Cascade handle your RAG pipelines and vector searches automatically.

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Connect R2R MCP to Windsurf

Create your Vinkius account to connect R2R to Windsurf — we handle the hosting, security, and runtime updates so you don't have to. No server setup required.

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Setup R2R with Windsurf

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Autonomous RAG execution in Windsurf

Cascade doesn't just suggest code; it uses `rag_query` to pull exact context from your R2R engine. It finds the right answers without you hunting through files. You set the goal and Cascade chains the tools. It executes the query, reads the output, and applies the findings to your project files immediately.

Direct vector search with Windsurf

Stop guessing which file contains your data. Use `search` to run vector queries directly from the chat panel. Cascade parses the results and brings the relevant snippets into your active context. It saves you from manual file searching and context switching.

Manage your R2R collections via MCP Server

Keep your documents organized without leaving the IDE. Use `list_collections` and `list_documents` to see exactly what is indexed in your R2R instance. Need specific file details? Call `get_document` to pull metadata. Cascade handles the heavy lifting so you stay focused on shipping code.

Setup guide

Set up R2R MCP in Windsurf

Prerequisites

Windsurf IDE installed (macOS, Windows, or Linux)
Active Vinkius subscription with a valid endpoint token

1

Open MCP configuration

Click the Cascade assistant icon in the sidebar, then click the hammer icon (🔨) at the top of the panel. Select "Configure" to open ~/.codeium/windsurf/mcp_config.json.
2

Add the R2R MCP

Paste the JSON snippet shown on the right into the mcpServers object. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com.
3

Refresh MCPs

Go back to the hammer icon (🔨) in Cascade and click "Refresh". Windsurf will detect the new server. No full restart is needed — the connection is hot-reloaded.
4

Verify in Cascade

Start a new Cascade conversation and ask something like "Show my R2R payment history." If connected, Cascade will call the R2R tools directly. You will see a green dot next to the server name in the MCP panel.

mcp_config.json

{
  "mcpServers": {
    "r2r-mcp": {
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

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Common questions about R2R MCP in Windsurf

Just ask Cascade to search your knowledge base. It will call the `search` tool through this MCP Server to fetch vector-matched results based on your prompt.

Yes. Ask a question and Cascade uses `rag_query` to retrieve context from your R2R engine. It then synthesizes the answer directly in your chat.

Your data stays between your local R2R instance and the Windsurf client. The MCP Server only passes queries and document metadata, never your raw file contents to external third parties.

Not usually. Click the refresh button in the MCP panel after adding the server, and Cascade will auto-discover the tools.

Run `get_health` through the Cascade interface to check if your R2R server is reachable. If it returns an error, verify your endpoint URL in the config file.

Use it with your favorite AI tools

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