How to Use the NAICS/SIC Classification API MCP in Claude Code

Q: How do I verify the server is running in my terminal?

Run claude mcp list to check your configuration. You can also run the status tool manually to confirm the service is responding as expected.

Claude Code runs the NAICS/SIC Classification API in your terminal for headless industry data processing.

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Connect NAICS/SIC Classification API MCP to Claude Code

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Setup NAICS/SIC Classification API with Claude Code

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Headless industry classification with Claude Code

Run classification tasks directly from your shell using `search_naics_codes`. Claude Code pipes the output into your existing scripts, making it ideal for CI/CD pipelines that need to tag company data. This removes the need for a GUI. You get pure machine-readable results that integrate into your backend infrastructure.

Automated status monitoring for production

Incorporate `check_api_status` into your shell scripts to monitor the classification service health. If the API doesn't return a 200 OK, your pipeline halts before processing invalid data. This ensures your production environment remains stable. It catches configuration issues before they reach your database.

Standardized metadata retrieval for CLI tools

Use `get_classification_details` to pull industry descriptions for logging or auditing. Claude Code outputs the JSON metadata, which you can easily parse with jq or other terminal utilities. This gives you full control over how industry data is formatted. It is built for developers who need speed and precision.

Setup guide

Set up NAICS/SIC Classification API MCP in Claude Code

Prerequisites

Claude Code CLI installed (npm install -g @anthropic-ai/claude-code)
Active Vinkius subscription with a valid endpoint token

1

Run the add command

Open your terminal and run the command shown on the right. Replace [YOUR_TOKEN_HERE] with your endpoint token from cloud.vinkius.com. Use --scope user to make it available across all projects.
2

Verify the connection

Start a Claude Code session and type /mcp to list connected servers. You should see naicssic-classification-api-mcp with a green status indicator.
3

Start using tools

Ask Claude Code something like "Check my latest NAICS/SIC Classification API transactions." It will automatically discover and invoke the available NAICS/SIC Classification API tools.

Terminal

claude mcp add --transport http naicssic-classification-api-mcp https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp

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Prerequisites

Claude Code CLI installed
Active Vinkius subscription with a valid endpoint token

1

Open the config file

Create or edit .mcp.json in your project root for project-level scope, or ~/.claude.json for user-level scope.
2

Add the NAICS/SIC Classification API 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

Restart Claude Code

Start a new Claude Code session. Type /mcp to confirm the server is connected. The tools will be automatically available in your conversation.

.mcp.json

{
  "mcpServers": {
    "naicssic-classification-api-mcp": {
      "type": "url",
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Get your connection token →

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Common questions about NAICS/SIC Classification API MCP in Claude Code

Absolutely. You can write shell scripts that invoke the toolset to automate large-scale industry code mapping across your entire database.

It executes the requested tool and returns the result to stdout. You can capture this output in your pipeline to validate classifications during deployment.

Yes. The server returns clean JSON, which works perfectly with standard Unix utilities for filtering and processing industry code data.

Run `claude mcp list` to check your configuration. You can also run the status tool manually to confirm the service is responding as expected.

The server runs as a local process. It does not transmit company descriptions to external servers beyond the necessary classification lookups.

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