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Add Trade Core to your AI assistant in under a minute. One URL, any client.

1

Add the server

In Claude (web, mobile, or desktop):

  1. Open Customize → Connectors
  2. Click Add custom connector
  3. Set name to Proofwork Labs
  4. Set URL to:
https://mcp.proofworklabs.com/mcp

Leave OAuth fields empty. Authentication is handled automatically.

2

Sign in when prompted

On first use, a browser window opens for sign-in. Use your Google, Microsoft, or email account. This happens once — your session is remembered.

3

Classify your first product

Try this in your AI assistant:

"Classify this product under the HTS: a synthetic organic colorant known as Lionel Blue ES, produced in India"

Your AI will call the skill tools automatically, walking through heading identification, subheading selection, and leaf code selection with CBP ruling precedents at each step.

Free tier: 500 MCP tool calls per organization (~100 classifications), pooled across every Proofwork skill. No credit card required. See pricing for unlimited access.