How to Use the Fauna (Serverless DB) MCP in Claude

Q: How do I connect Fauna (Serverless DB) to Claude Desktop?

Open your claudedesktopconfig.json file and add the server configuration under the mcpServers key. Once you save the file and restart Claude Desktop, the agent will detect the serverless database tool.

Run complex FQL queries and manage your cloud database directly from Claude Desktop.

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Connect Fauna (Serverless DB) MCP to Claude Desktop

Create your Vinkius account to connect Fauna (Serverless DB) to Claude Desktop and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Fauna (Serverless DB) with Claude Desktop

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Query Fauna databases inside Claude Desktop

The `execute_fql` tool lets your agent query your Fauna database without leaving the chat. You paste a schema question, and your agent writes and runs the FQL query immediately to fetch the exact documents you need. This MCP setup runs locally on your machine via stdio transport. You don't have to copy-paste JSON payloads back and forth between your terminal and the chat window.

Manage collections using the Fauna MCP Server

Schema changes happen in seconds when you let your agent run the `execute_fql` tool. It builds collections, defines indexes, and modifies document structures based on your direct instructions. Since this MCP Server integrates directly with Claude Desktop, you can point your agent to local schema files. It reads those files and applies the migrations directly to your serverless database.

Run raw FQL transactions on demand

Complex transactions require precise execution, which is where the `execute_fql` tool shines. Your agent writes multi-document writes and conditional updates, then runs them against your live database. You get immediate feedback on query execution times and document changes. If an update fails, the agent reads the error stack, fixes the FQL syntax, and runs it again.

Setup guide

Set up Fauna (Serverless DB) MCP in Claude Web or Desktop

1

Open Claude Settings

Go to claude.ai, click your profile icon, then navigate to Customize → Connectors.
2

Add Custom Connector

Click the "+" button and select Add custom connector. Paste your Vinkius endpoint URL: https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. For OAuth-protected servers, expand Advanced settings to add credentials.
3

Start a conversation

Open a new chat. The Fauna (Serverless DB) MCP tools are available immediately — no restart needed.

Endpoint URL

https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

No configuration file needed — paste the URL directly in the Claude web interface.

Available on Free (1 connector), Pro, Max, Team, and Enterprise plans.

Prerequisites

Claude Desktop installed (macOS or Windows)
Active Vinkius subscription with a valid endpoint token

1

Open Claude Desktop Settings

Click the menu icon at the top-left corner, go to Settings → Developer → Edit Config. This opens claude_desktop_config.json in your default text editor.
2

Paste the Fauna (Serverless DB) MCP configuration

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

Restart Claude Desktop

Close and reopen the application. Claude needs a full restart to load new MCPs — refreshing a conversation is not enough.
4

Verify the connection

Open a new conversation. Click the 🔌 icon at the bottom of the message input. You should see tools listed under fauna-serverless-db-mcp.

json

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

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Common questions about Fauna (Serverless DB) MCP in Claude Desktop

Open your `claude_desktop_config.json` file and add the server configuration under the `mcpServers` key. Once you save the file and restart Claude Desktop, the agent will detect the serverless database tool.

Yes, you can run any write operation by passing the correct FQL string to the execution tool. The agent executes the write transaction instantly and returns the updated document structure.

The execution tool returns the raw error message from the database engine. Your agent reads this error, corrects the FQL syntax, and runs the query again without requiring your manual intervention.

Ask your agent to run a system query using the execution tool to list your collections. It returns the current schema definitions directly in the chat interface.

Your Fauna database keys stay on your local machine. The Claude Desktop app runs the server as a local subprocess, meaning your credentials and raw FQL queries never pass through third-party telemetry servers.

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